36524699
Descripción
Test por Azarias Beltre, actualizado hace más de 1 año
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Creado por Azarias Beltre
hace más de 2 años
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Pregunta 1
Pregunta
1.When the Trunk port send the data frame, how to deal with?
Respuesta
-
A. When the VLAN ID is the same as the PVID of the port and is a VLAN ID allowed by the port, remove the Tag and send the message
-
B. When the VLAN ID is different from the PVID of the port, the data frame is dropped
-
C. When the VLAN ID is different from the PVID of the port, replace it with PVID forwarding
-
D. When the VLAN ID is different from the PVID of the port, strip off the TAG and forward
Pregunta 2
Pregunta
2.How many bits are there in the VLAN ID in the VLAN format defined by IEEE802.1Q?
Respuesta
-
A.12
-
B.6
-
C.10
-
D.8
Pregunta 3
Pregunta
3. In the network shown in the figure below, the output information of switch A is shown in the figure. Then in the MAC address table of switch A, which interface does the MAC address of host B correspond to?
Image:
1 (binary/octet-stream)
Respuesta
-
A. GigabitEthernet 0/0/3
-
B. GigabitEthernet0/0/2
-
C. Eth-Trunk 1
-
D. GigabitEthernet0/0/1
Pregunta 4
Pregunta
4.All ports on the root-bridge switch are designated ports.
Respuesta
-
A.True
-
B.False
Pregunta 5
Pregunta
5.In the configuration BPDU sent by the switch, which bridge ID is unlikely to appear?
Respuesta
-
A.8192 00-01-02-03-04-CC
-
B.4096 00-01-02-03-04-CC
-
C.0 00-01-02-03-04-CC
-
D.2048 00-01-02-03-04-CC
Pregunta 6
Pregunta
6. The number of VLANs that can be created using the commands "vlan batch 10 20" and "vlan batch 10 to 20" respectively is
Respuesta
-
A.11 and 11
-
B.11 and 2
-
C.2 and 2
-
D. 2 and 11
Pregunta 7
Pregunta
7.By default, the root path cost of the root bridge in the STP protocol must be 0.
Respuesta
-
A.True
-
B.False
Pregunta 8
Pregunta
8. The administrator wants all hosts to be unable to access the Internet between 8:00-17:00 every day, so which ACL rule needs to be bound to the traffic-filter outbound in the GO/0/1 interface allocation?
Respuesta
-
A. time-range am9topm5 08:00 to working-day Acl number 2003 rule 5 deny time-range am9topjni5
-
B. time-range am9topm5 08:00 to 17:00 off-day # acl number 2004 rule 5 permits time-range
-
C. time-range am9topm5 08:00 to 17:00 daily acl number 2001 rule 5 deny time-range am9topm5
-
D. time-range am9topm5 07:00 to 18:00 daily Acl number 2002
Pregunta 9
Pregunta
9.As shown in the figure below, the wrong statement is:
acl number 2000]
rule 5 deny source 200.0.12.00.0.0.7 rule 10permit source200.0.12.00.0.0.15 #
interface GigabitEthernetO/0/1 traffic-filteroutbound acl2000
Image:
2 (binary/octet-stream)
Respuesta
-
A. The host whose source IP address is 200.0.12.4 cannot access the Internet
-
B. The host whose source IP address is 200.0.12.2 cannot access the Internet
-
C. The host whose source IP address is 200.0.12.8 cannot access the Internet
-
D. The host whose source IP address is 200.0.12.6 cannot access the Internet
Pregunta 10
Pregunta
10. On Huawei equipment, if you use aaa authentication for authorization. When the remote server does not respond, you can authorize from the network equipment side.
Respuesta
-
A.True
-
B.False
Pregunta 11
Pregunta
11.What percentage does the DHCP client expect to send the lease renewal message for the first time?
Respuesta
-
A.0.5
-
B.0.875
-
C.1
-
D.0.25
Pregunta 12
Pregunta
12. After the administrator successfully logs in to the router through Telnet, and finds that the router's interface IP address cannot be allocated, the possible reasons are ()
Respuesta
-
A. The Telnet user level is incorrectly configured
-
B. SNMP parameter is incorrectly configured
-
C. The Telnet user authentication mode is incorrectly configured
-
D. The administrator uses the telnet terminal software to prohibit the corresponding operation
Pregunta 13
Pregunta
13. vty configuration as shown in the figure, the user authority level is set to level 3.
[Huawei]user-interface vty o 14
[Huawei-ul-vtyo-14]acl 2000 inbound
[Huavei-ui-vtyo-14]user privilege level 3
[Huavei-ui-vtyo-14]authentication-node password Please configure the login password (maxim length 16):Huawei
Respuesta
-
A.False
-
B.True
Pregunta 14
Pregunta
14.When AP and AC are on different Layer 3 networks, what method is recommended for AP to discover AC? (Multiple Choice)
Respuesta
-
A. Broadcasting method
-
B. DNS
-
C. DHCP
-
D. Manually specified on AP
Pregunta 15
Pregunta
15. What frequency does IEEE 802.11n support? (Multiple Choice)
Respuesta
-
A.2.5GHz
-
B.2.4GHz
-
C.5GHz
-
D.6GHz
Pregunta 16
Pregunta
16.In IPv4 networks, AP supports static and DHCP methods to obtain IP addresses.
Respuesta
-
A.True
-
B.False
Pregunta 17
Pregunta
17. What is the maximum negotiation rate supported by the IEEE 802.llg standard?
Respuesta
-
A.300Mbps
-
B.150Mbps
-
C.54Kbps
-
D.1200Mbps
Pregunta 18
Pregunta
18. Which WLAN security policies support the link authentication method of Open mode? (Multiple
Choice)
Respuesta
-
A. WPA2-802.IX
-
B. WPA2-PSK
-
C. WEP
-
D .WPA
Pregunta 19
Pregunta
19.Which of the following SNMP packets are sent to the NMS by the Agent on the managed device?
A.Set-Request
Respuesta
-
A.Set-Request
-
B.Get-Request
-
C.Get-Next-Request
-
D.Response
Pregunta 20
Pregunta
20. Which field is added to the IPv6 packet header than the IPv4 packet header?
Respuesta
-
A.Destination Address
-
B.Flow Label
-
C.Version
-
D.Source Address
Pregunta 21
Pregunta
21.Which of the following statements about RA and RS in IPv6 are correct? (Multiple Choice)
Respuesta
-
A. RS is used to reply address prefix information
-
B. RA is used to request address prefix information
-
C. RS is used to request address prefix information
-
D. RA is used to reply address prefix information
Pregunta 22
Pregunta
22. Telnetlib is a module that implements the Telnet protocol that comes with Python.
Respuesta
-
A.True
-
B.False
Pregunta 23
Pregunta
23. The controller is the core component of SDN. The controller connects to the device through the southbound interface. Which of the following belong to the controller southbound protocol? (Multiple Choice)
Respuesta
-
A.SNMP
-
B.PCEP
-
C.OpenFlow
-
D.NETCONF
Pregunta 24
Pregunta
24.In the campus network, network reliability can be improved by using link aggregation and stacking technology.
Respuesta
-
A.True
-
B.False
Pregunta 25
Pregunta
25.Using the command mkdir test in the VRP operating platform, the system will create a directory named test.
Respuesta
-
A.True
-
B.False
Pregunta 26
Pregunta
26. As shown in the figure, after the two routers are configured with OSPF, the administrator configures the <silent -interface s0/0/0> command on RTA, then the correct description of the following is (). (Multiple Choice)
Image:
3 (binary/octet-stream)
Respuesta
-
A. The neighbor relationship between the two routers will be down
-
B. The neighbor relationship between the two routers will not be affected
-
C. RTA will no longer send OSPF packets
-
D. RTA will continue to receive, analyze and process OSPF packets sent by RTB
Pregunta 27
Pregunta
27. Which of the following statements about the default route are correct? (Multiple Choice)
Respuesta
-
A. If the destination address of the message cannot match any other routing entries in the routing table, the router will forward the message according to the default route
-
B. There must be a default route in the routing table of any router
-
C. The default route can only be manually configured by the administrator
-
D. In the routing table, the default route appears as a route to the network 0.0.0.0 (the mask is also 0.0.0.0)
Pregunta 28
Pregunta
28. In the network shown in the figure below, the router receives a data packet with a destination IP address of 11.0.12.1 from host A. After this data packet is forwarded by the router, what are the
destination MAC and destination IP?
Image:
4 (binary/octet-stream)
Respuesta
-
A.MAC-C, 11.0.12.1
-
B.MAC-D, 10.0.12.2
-
C.MAC-D, 11.0.12.1
-
D.MAC-B, 11.0.12.1
Pregunta 29
Pregunta
29. In the network shown in the figure below, assuming that all routers enable the OSPF protocol at the same time, which router is the BDR in this network?
Image:
5 (binary/octet-stream)
Respuesta
-
A.Router D
-
B.Router B
-
C.Router C
-
D.Router A
Pregunta 30
Pregunta
30. There are multiple route entries to the same destination network in the routing table. These routes are called:
Respuesta
-
A. Sub-optimal routing
-
B. Multi-path routing
-
C. Default route
-
D. Equal cost routing
Pregunta 31
Pregunta
31. The function of 0SPF hello message is (). (Multiple Choice)
Respuesta
-
A. Neighbor discovery
-
B. Maintain neighbor relations
-
C. Update LSA information
-
D. Synchronize the LSDB of the router
Pregunta 32
Pregunta
32. The broadcast address is a special address in which the host bits in the network address are all set to 1, and it can also be used as a host address.
Respuesta
-
A.True
-
B.False
Pregunta 33
Pregunta
33. Which of the following cannot be the length of the IPv4 packet header?
Respuesta
-
A.32B
-
B.60B
-
C.20B
-
D.64B
Pregunta 34
Pregunta
35. In the network shown in the figure below, if Router A and Router B's loopback 0 communicate through static routing, which command needs to be entered on Router A?
Image:
6 (binary/octet-stream)
Respuesta
-
A. ip route-static 10.0.2.2 0 GigabitEthernet 0/0/0
-
B. ip route-static 10.0.2.2 32 GigabitEthernet 0/0/0
-
C. ip route-static 10.0.2.2 255.255.255.255 10.0.12.1
-
D. ip route-static 10.0.2.2 255.255.255.255 10.0.12.2
Pregunta 35
Pregunta
36. What is the priority value of the direct route entry?
Respuesta
-
A.0
-
B.30
-
C.10
-
D.20
Pregunta 36
Pregunta
37.As shown in the figure, if host A and host B want to achieve inter-VLAN communication through single-arm routing, which configuration should be done under the G0/0/1.1 interface of RTA?
Image:
7 (binary/octet-stream)
Respuesta
-
A.dot1q termination vid 30
-
B.dot1q termination vid 20
-
C. dot1q termination vid 10
-
D.dot1q termination vid 40
Pregunta 37
Pregunta
38. As shown in the figure, the correct description of this network topology is ().
Image:
8 (binary/octet-stream)
Respuesta
-
A. There are 6 collision domains in this network
-
B. There are 2 broadcast domains in this network
-
C. There are 6 broadcast domains in this network
-
D. There are 12 conflict domains in this network
Pregunta 38
Pregunta
39. The network administrator created VLAN 10 on the Layer 3 switch and configured an IP address under the virtual interface of the VLAN. When the command "display IP interface brief" is used to check the port status, it is found that the VLANIF 10 interface is in the downstate. What should be done to restore the VLANIF 10 interface to normal?
Respuesta
-
A. Add an interface that must be Up and must be of type Trunk into VLAN 10
-
B. Assign any physical interface to VLAN 10
-
C. Assign a physical interface that must be Up to VLAN 10
-
D. Use the command "undo shutdown" under VLANIF 10 interface
Pregunta 39
Pregunta
40.The output information of the sub-interface of a router aggregate port 1 is shown in the figure. Based on this information, which of the following statements are correct? (Multiple Choice)
[Router A]display Interface Eth-Trunk 1.100
Eth-Trunk1.100 current state : UP
Line protocol current state : UP
Last line protocol up time : 2019-03-04 10:22:40 UTC -08 :00
Description: HUAWEI, AR Series, Eth-Trunk1.100 Interface
Route Port, Hash arithmetic : According to SIP-XOR-DIP, Maximal BW: 2G, Current BW: 2G, The
Maximum Transmit Unit is 1500
Internet Address is 10.0.12.2/24
IP Sending Frames’ Format is PKTFIT ETENT 2.Hardware address 1s 00e0-fc3b-2015
Current system time: 2019-03-04 10:24:29 -08:00
Last 300 seconds input rate 0 bits/sec, 0 packets/sec
Last 300 seconds output rate 0 bits/sec, 0 packets/sec
Realtime 0 seconds input rate 0 bits/sec, 0 packets/sec
Realtime 0 seconds output rate 0 bits/sec, 0 packets/sec
Input: 6 packets, 574 bytes,
Output:7 packets, 638 bytes,
Input bandwidth utilization ;0%
Output bandwidth utilization :0%
————————————————————————————————
PortName Status Weight
————————————————————————————————
GigabitEthernet0/0/1 UP 1
GigabitEthernet0/0/2 UP 1
————————————————————————————————
The Number of Ports in Trunk : 2
The Number of UP Ports in Trunk : 2
Respuesta
-
A. Two links exist on the aggregate port
-
B. The IP address of the sub-interface of the aggregate port is 10.0.12.2/24
-
C. The sub-interface number of the aggregate port is 100
-
D. The sub-interface of the aggregate port carries VLAN TAG 100 when forwarding data frames
Pregunta 40
Pregunta
41. As shown in the figure below, suppose the MAC address table of SWA is as follows. Now host A sends a data frame with the destination MAC address MAC-B. Which of the following statements is correct?
Image:
9 (binary/octet-stream)
Respuesta
-
A. Forward this data frame only from port G0/0/2
-
B. Forward this data frame only from port G0/0/3
-
C. STA discards the data frame
-
D. Flood this data frame
Pregunta 41
Pregunta
42. Which of the following does not be included in AAA?
Respuesta
-
A.Authentication
-
B.Accounting
-
C.Authorization
-
D.Audit
Pregunta 42
Pregunta
43. On Huawei ARG3 series routers, what authentication modes does AAA support? (Multiple Choice)
Respuesta
-
A.802.1x
-
B.Local
-
C.None
-
D.HWTACACS
Pregunta 43
Pregunta
44. 44.Which of the following protocols consist of the PPP protocol? (Multiple Choice)
Respuesta
-
A.LCP
-
B.PPPoE
-
C.NCP
-
D.Authentication protocol
Pregunta 44
Pregunta
45. Which of the following statements about Prefix Segment is wrong?
Respuesta
-
A. Prefix Segment spreads to other network elements through the IGP protocol, which is globally visible and effective
-
B. Prefix Segment needs to be configured manually
-
C. Prefix Segment is used to identify a destination address prefix in the network (Prefix)
-
D. Prefix Segment can be automatically allocated by IGP
Pregunta 45
Pregunta
46. The output information of a certain device is shown in the figure. Which of the following statements is correct? (Multiple Choice)
<Huawe1>display interface G1gabitEthernet 0/0/0
G1gabi tEthernet0/0/0 current state : UP
Line protocol current state : UP
Route Port, The Maximum Transmit Unit is 1000
The Internet Address is 10.0.12.2/24
IP Sending Frames' Format is PRTFMT ETENT_2.Hardware address is 00e0- fc22- 4fff
Port Mode: FORCE COPPER
Speed : 100.Loopback: NONE
Duplex: FULL,Negotiation: DISABLE
Md1 : AUTO
Last 300 seconds input rate 24 bits/sec, 0 packets/sec
Last 300 seconds output rate 24 bits/sec, 0 packets/sec
Respuesta
-
A. The IP address of the interface is 10.0.12.2/24
-
B. The MAC address of the interface is 00e0-fc22-4fff
-
C. The working rate of this interface is 1Gbps
-
D. The MTU value of this interface is 1000
Pregunta 46
Pregunta
47.In the OSI reference model, what can complete end-to-end error detection and flow control?
Respuesta
-
A. Physical layer
-
B. Data link layer
-
C. Network layer
-
D. Transport layer
Pregunta 47
Pregunta
48. In the network shown in the figure below, all routers run OSPF protocol. Above the link is the value of the Cost value, then the path for RTA to reach the network 10.0.0.0/8 is:
Image:
10 (binary/octet-stream)
Respuesta
-
A. A-B-D
-
B. RTA cannot reach 10.0.0.0/8
-
C. A-C-D
-
D. A-D
Pregunta 48
Pregunta
49.Which of the following statement about static routing in Huawei equipment is wrong?
Respuesta
-
A. The cost value (Cost) of the static route cannot be modified
-
B. The default value of the static route priority is 60
-
C. The range of the static route priority value is 1-255
-
D. When the priority of the static route is 0, the route will definitely be preferred.
Pregunta 49
Pregunta
50.Which of the following statements is correct?
Respuesta
-
A. The router works at the physical layer
-
B. The switch works at the physical layer
-
C. The switch works at the network layer
-
D. The router works at the network layer
Pregunta 50
Pregunta
50.Which of the following statements is correct?
Respuesta
-
A. The router works at the physical layer
-
B. The switch works at the physical layer
-
C. The switch works at the network layer
-
D. The router works at the network layer
Pregunta 51
Pregunta
51. On interfaces that use PPP as the data link layer protocol, you can configure static routes by specifying the next-hop address or outbound interface.
Respuesta
-
A.True
-
B.False
Pregunta 52
Pregunta
52. Which of the following description about the Layer 2 Ethernet switch is incorrect?
Respuesta
-
A. It is necessary to make certain modifications to the layer 3 header of the forwarded message, and then forward it
-
B. Able to learn MAC address
-
C. Forward according to the Layer 2 header information of the Ethernet frame
-
D. Layer 2 Ethernet switches work at the data link layer
Pregunta 53
Pregunta
53. As shown in the information in the figure, when learning this switch needs to forward the frame with the destination MAC address of 5489-98ec-f011, which of the following description is correct?
Image:
11 (binary/octet-stream)
Respuesta
-
A. The switch will flood the frame on all ports except the port that received the frame
-
B. The switch will send a message that the destination is unreachable to the source device
-
C. The switch does not find a matching entry in the MAC address table, so it will discard the frame
-
D. The switch needs to send a request to discover the device with the MAC address of 5489 98ec-f011
Pregunta 54
Pregunta
54. What is the range of VLAN ID that users can use?
Respuesta
-
A.1-4096
-
B.1-4094
-
C.0-4096
-
D.0-4095
Pregunta 55
Pregunta
55. By default, in the SNMP protocol, which port number does the agent process use to send alarm messages to NS?
Respuesta
-
A.164
-
B.163
-
C.162
-
D.161
Pregunta 56
Pregunta
56. As shown in the figure below, router A has Telnet router B through IP address 10.0.12.2. In the current interface, which of the following operations will cause the Telnet session of Router A and Router B to be interrupted? (Multiple Choice)
Image:
12 (binary/octet-stream)
Respuesta
-
A. Modify the IP address of G0/0/1 interface
-
B. Close G0/0/1 interface
-
C. Configure static routing
-
D. Enable 0SPF protocol under G0/0/1 interface
Pregunta 57
Pregunta
57. What is the port number used by the FTP protocol control plane?
Respuesta
-
A.23
-
B.24
-
C.21
-
D.22
Pregunta 58
Pregunta
58. There is no channel overlap in the 14 available frequency bands in the 2.4GHz frequency band
Respuesta
-
A.True
-
B.False
Pregunta 59
Pregunta
59. After the link authentication is completed, the STA will continue to initiate link service negotiation. Which of the following messages is used to achieve the specific negotiation?
Respuesta
-
A.Join
-
B.Handshake
-
C.Association
-
D.Negotiate
Pregunta 60
Pregunta
60. The Layer 2 networking of WLAN means that the STA uses the AC as its gateway
Respuesta
-
A.True
-
B.False
Pregunta 61
Pregunta
61. What is the IEEE802.11 standard corresponding to Wi-F16?
Respuesta
-
A.802.11au
-
B.802.11ax
-
C.802.11at
-
D.802.11ac
Pregunta 62
Pregunta
62. Which of the following working modes are supported by Huawei Enterprise AP? (Multiple Choice)
Respuesta
-
A.Local
-
B.Cloud
-
C.FIT
-
D.FAT
Pregunta 63
Pregunta
63.Which of the following statements about Adjacency Segment is wrong?
Respuesta
-
A. Adjacency Segment is identified by Adjacency Segment ID (SID)
-
B. Adjacency Segment spreads to other network elements through IGP protocol, which is visible globally and effective locally
-
C. Adjacency Segment must be configured manually
-
D. Adjacency Segment is used to identify an adjacency of a node in the network
Pregunta 64
Pregunta
64. If during the PPP authentication process, the authenticatee sends the wrong user name and password to the authenticator, what type of message will the authenticator send to the authenticatee?
Respuesta
-
A.Authenticate-Reject
-
B.Authenticate-Ack
-
C.Authenticate-Nak
-
D.Authenticate-Reply
Pregunta 65
Pregunta
65. Which version of the SNMP protocol below supports encryption features?
Respuesta
-
A.SNMPv3
-
B.SNMPv2c
-
C.SNMPv1
-
D.SNMPv2
Pregunta 66
Pregunta
66.SNMPv1 defines 5 protocol operations.
Respuesta
-
A.True
-
B.False
Pregunta 67
Pregunta
67. The IPv6 address 2001: ABEF: 224E: FFE2: BCC0: CD00: DDBE: 8D58 cannot be abbreviated.
Respuesta
-
A.True
-
B.False
Pregunta 68
Pregunta
68. The DHCPv6 server supports providing other configuration information such as DNS server address for the host.
Respuesta
-
A.True
-
B.False
Pregunta 69
Pregunta
69.Which planes of the following does a network device have? (Multiple choice)
Respuesta
-
A. Control plane
-
B. Business plane
-
C. Data plane
-
D. Management plane
Pregunta 70
Pregunta
70. Virtualization is the basis for the realization of NEV. Which of the following statements about the characteristics of virtualization is correct? (Multiple choice)
Respuesta
-
A. Hardware independence: virtual machine and hardware decoupling, support virtual machine migration between servers.
-
B. Encapsulation: All virtual machines share the operating system, and encapsulation is achieved through name spaces.
-
C. Isolation: The virtual machines on the same physical server are isolated from each other
-
D. Partition: You can run multiple virtual machines on a single physical server at the same time.
Pregunta 71
Pregunta
71. The output information of the router R1 routing table is shown in the figure. Which of the following statements is correct? (Multiple Choice)
Image:
13 (binary/octet-stream)
Respuesta
-
A. The router will discard data packets whose destination network is 11.0.0.0/8
-
B. The router will forward data packets whose destination network is 12.0.0.0/8
-
C. The data packet whose destination network is 11.0.0.0/8 will be forwarded from the router's GigabitEthernet0/0/0 interface
-
D. The data packet whose destination network is 12.0.0.0/8 will be forwarded from the router's Ethernet070/0 interface
Pregunta 72
Pregunta
72. Which of the following description about the Router ID of OSPF is incorrect? (Multiple Choice)
Respuesta
-
A. Router ID must be the IP address of an interface on the router
-
B. The prerequisite for the normal operation of the OSPF protocol is that the router has a Router ID
-
C. The Router ID must be manually configured
-
D. The Router ID must be the same in the same area, and the Router ID in different areas can be different
Pregunta 73
Pregunta
73.Which of the following statements about direct routing is correct?
Respuesta
-
A. Direct routing requires the administrator to manually configure the destination network and the next-hop address
-
B. Direct route has lower priority than static route
-
C. Direct route priority is lower than dynamic route
-
D. Direct routing has the highest priority
Pregunta 74
Pregunta
74.What are the advantages of the OSPF protocol? (Multiple Choice)
Respuesta
-
A. Division of support areas
-
B. OSPF supports load sharing for equal-cost routes
-
C. OSPF supports message authentication
-
D. OSPF supports type-less inter-domain routing (CIDR)
Pregunta 75
Pregunta
75. The route entry 10.0.0.24/29 may be aggregated from which of the following subnet routes? (Multiple Choice)
Respuesta
-
A.10.0.0.26/30
-
B.10.0.0.23/30
-
C.10.0.0.24/30
-
D.10.0.0.28/30
Pregunta 76
Pregunta
76. When two OSPF routers form a 2-WAY neighbor relationship, the LSDB has been synchronized
Respuesta
-
A.True
-
B.False
Pregunta 77
Pregunta
77. If the Proto of a certain route information in the routing table is Direct, the priority of this route is set to 0.
Respuesta
-
A.True
-
B.False
Pregunta 78
Pregunta
78. What are the network types supported by the OSPF protocol? (Multiple Choice)
Respuesta
-
A.Point-to-Point
-
B.Non-Broadcast Multi-Access
-
C.Point-to-Multipoint
-
D.Broadcast
Pregunta 79
Pregunta
79. The election of the root switch in STP only compares the switch priority, while in RSTP, the switch priority and MAC address are compared at the same time.
Respuesta
- True
- False
Pregunta 80
Pregunta
80.Which of the following is not the reason for RSTP improving the convergence speed?
Respuesta
-
A. Introduction of edge ports
-
B. Fast switching of the root port
-
C. P/A mechanism
-
D. Forward Delay canceled
Pregunta 81
Pregunta
81. The IP addresses of the VLANIF interfaces of the same switch cannot be the same.
Respuesta
- True
- False
Pregunta 82
Pregunta
82. The MAC address table of the existing switch is shown in the figure. Which of the following statements are correct?
Image:
14 (binary/octet-stream)
Respuesta
-
A. When the switch restarts, the MAC address learned by port Eth0/0/2 does not need to be relearned
-
B. When the switch restarts, the MAC address learned by port Eth0/0/3 needs to be learned again
-
C. The data frame with the source MAC address of 5489-9811-0b49 and the destination MAC address of 5489-9894-1d30 received from the port is forwarded from the Eth0/0/2 port
-
D. The data frame with the source MAC address of 5489-9885-18a8 and the destination MAC address of 5489-989d-1d30 received from the port is forwarded from the Eth0/0/1 port
Pregunta 83
Pregunta
83. The MAC address table of a certain switch is shown in the figure. If the switch receives a data frame with a destination MIAC of 5489-9885-18a8 from port Eth0/0/2, which of the following statements is correct?
Image:
15 (binary/octet-stream)
Respuesta
-
A. Forward this data frame from Eth0/0/1 port
-
B. Flood this data frame
-
C. Discard this data frame
-
D. Forward this data frame from the Eth0/0/2 port
Pregunta 84
Pregunta
84. The switch GO/0/1 port configuration information is shown in the figure. Which VLAN data frame does the switch forward without VLAN TAG?
#
interface GigabitEtherneto/o/1
port link-type trunk
port trunk pvid vlan 10
port trunk allow-pass vlan 10 20 304o
#
Respuesta
-
A.10
-
B.30
-
C.20
-
D.40
Pregunta 85
Pregunta
85.When the Access type port sends a message, it will ().
Respuesta
-
A. Send messages with tag
-
B. Strip the VLAN information of the message, and then send it out
-
C. Type the PVID information of this port, and then send it out
-
D. Add the ZLAN message of the message, and then send it out
Pregunta 86
Pregunta
86.The configuration information of a certain port of the switch is shown in the figure, then this port carries VLAN TAG when sending data frames carrying which VLAN?
interface GigabitEtherneto/0/1
port hybrid tagged vlan 2 to 3 100
port hybrid untagged vlan 4 6
#
Respuesta
-
A. 1,2.3,100
-
B. 2.3.100
-
C. 1,2.3.4.6,100
-
D. 2.3.4.6,100
Pregunta 87
Pregunta
87. What is the value of the Type field in the RStp configuration BPDU message?
Respuesta
-
A.Ox01
-
B.ox00
-
C.ox02
-
D.ox03
Pregunta 88
Pregunta
88. The Priority field in the VLAN tag can identify the priority of the data frame. What is the range of this priority?
Respuesta
-
A.0-15
-
B.0-63
-
C.0-3
-
D.0-7
Pregunta 89
Pregunta
89. What elements can NAPT convert?
Respuesta
-
A. Only MAC address
-
B. IP address + port number
-
C. MAC address + port number
-
D. Only IP address
Pregunta 90
Pregunta
90. In the network shown in the figure below, from a security perspective, router A refuses to receive OSPF packets and ICMP packets received from the cO/0/1 interface. Which of the following commands can achieve this requirement? (Multiple Choice)
Image:
16 (binary/octet-stream)
Respuesta
-
A. acl rumber 300o rule 5 deny ospf rule 10 deny icmp # interface GigabitEthernet0/0/1 traffic-filter inbound ac1 300o #
-
B. acl rumber 2000 rule 5 deny 89 rule 10 deny 1 # interface GigabitEtherneto/0/1 traffic-filter inbound ac1 2000 #
-
C. acL rumber 300o rule 5 deny 89 rule 10 deny icmp # interface GigabitEthernet0/0/1 traffic-filter inbound ac1 30oo #
-
D. acl number 3000 rule 5 deny 89 rule 10 deny 1 interface GigabitEtherneto/0/1 traffic-filter inbound aci 3000
Pregunta 91
Pregunta
91. As shown in the figure, there is a web server in the private network that needs to provide HITRP services to public network users. Therefore, the network administrator needs to configure NAT on the gateway router RTA to achieve the requirements. Which of the following configuration can meet the requirement?
Image:
17 (binary/octet-stream)
Respuesta
-
A.RTA-Gigabitethernet0/0/1]nat server protocol tcp global 192.168.1.1 www inside 202.10.10.18080
-
B.[RTA-Seria11/0/1]nat server protocol tcp global 192.168.1.1 www inside 202.10.10.1 8080
-
C. [RTA-Gigabitethernet0/0/1]nat server protocol tcp global 202.10.10.1 www inside 192.168.1.18080
-
D. [RTA-Serial1/0/1]nat server protocol tcp global 202.10.10.1 www inside 192.168.1.1 8080
Pregunta 92
Pregunta
92. A network engineer prompts the following information when entering the command line: Error: Unrecognized command found at ‘^’position. Which of the prompt information is correct?
Respuesta
-
A. The input command is incomplete
-
B. Wrong parameter type
-
C. No keyword found
-
D. Input command is not clear
Pregunta 93
Pregunta
93.<huawei>system-view
[huawei]command-privilege level 3 view user save
The correct statement about the above configuration command is:
Respuesta
-
A. Modify the user's authority level to 3, and save the configuration
-
B. Modify the permission level of the user view command to 3, and save the configuration
-
C. Modify the authority level of the save command used by a user to 3
-
D. Modify the permission level of the save command in the user view to 3
Pregunta 94
Pregunta
94.Which of the following descriptions about the switch is wrong?
Respuesta
-
A. The switch can complete the exchange of data frames
-
B. The switch can provide network access services for terminal equipment (PC. Server)
-
C. Switches generally work at the data link layer
-
D. Switches are generally used as network export equipment
Pregunta 95
Pregunta
95.Which of the following descriptions about firewalls is wrong?
Respuesta
-
A. Firewall can realize user identity authentication
-
B. Firewall can realize access control between different networks
-
C. Firewall can isolate networks with different security levels
-
D. The firewall cannot achieve network address translation
Pregunta 96
Pregunta
96. What kind of message does the OSPF protocol use to discover and maintain neighbor relationships?
Respuesta
-
A.DD
-
B.LSR
-
C.LSU
-
D.HELLO
Pregunta 97
Pregunta
97.On the VRP platform, the default protocol priority of routes in the direct routing, static routing, RIP, OSPF area is:
Respuesta
-
A. Direct routing,OSPF,Static routing,RIP
-
B. Direct routing,Static routing,RIP,OSPF
-
C. Direct routing,RIP,Static routing,OSPF
-
D. Direct routing,OSPF,RIP,Static routing
Pregunta 98
Pregunta
98. In the network shown in the figure below, the host has an ARP cache, and host A sends a packet to host B. What are the destination MAC and destination IP of this packet?
Image:
18 (binary/octet-stream)
Respuesta
-
A. MAC-B,11.0.12.1
-
B. MAC-D,11.0.12.1
-
C. MAC-C,10.0.12.2
-
D. MAC-A,11.0.12.1
Pregunta 99
Pregunta
99. On Huawei routers, what is the default value of the OSPF protocol internal routing priority?
Respuesta
-
A.20
-
B.10
-
C.30
-
D.0
Pregunta 100
Pregunta
100. Now there are the following four segments: 10.24.0.0/24, 10.24.1.0/24, 10.24.2.0/24, 10.24.3.0/24, which route can point to these four network segments at the same time? (Multiple Choice)
Respuesta
-
A.10.24.1.0/23
-
B.0.0.0.0/0
-
C.10.24.0.0/22
-
D.10.24.0.0/21
Pregunta 101
Pregunta
101. Which fields in the IPv4 header are related to fragmentation? (Multiple Choice)
Respuesta
-
A.TTL
-
B.Fragment Offset
-
C.Identification
-
D.Flags
Pregunta 102
Pregunta
102.As shown in the figure below, which of the following statements are correct?
Host A-----------------------------------------Host B
Ip 10.0.12.1/30 Ip 10.0.12.5/24
Mac. Mac A Mac. Mac B
Respuesta
-
A. Host A can ping host B
-
B. Host A and Host B cannot obtain each other's MAC address
-
C. The following entry 10.0.12.5 MAC-B exists in the ARP cache of host A
-
D. The broadcast address of host A and host B are the same
Pregunta 103
Respuesta
-
A. Client3 belongs to VLAN30, and the command for dividing VLAN on the switch is correct
-
B. Client4 belongs to VLAN40, and the command for dividing VLAN on the switch is correct
-
C. Client2 belongs to VLAN20, and the switch based on the MAC address division command is correct
-
D. Client1 belongs to VLAN10, and the command for dividing VLAN on the switch is correct
Pregunta 104
Pregunta
D. Client1 belongs to VLAN10, and the command for dividing VLAN on the switch is correct
Respuesta
- True
- False
Pregunta 105
Pregunta
105. When Huawei switches allow STP, the priority of the switch is by default:
Respuesta
-
A.32768
-
B.8192
-
C.16384
-
D.4096
Pregunta 106
Pregunta
106.As shown in the figure, the switch runs STP with default parameters, which of the following ports will be elected as the designated port?
Image:
20 (binary/octet-stream)
Respuesta
-
A. G0/0/1 port of switch A
-
B. Port G0/0/2 of switch A
-
C. HUB's G0/0/1 port
-
D. HUB's G0/0/2 port
Pregunta 107
Pregunta
107.What is the Solicited-node multicast address corresponding to IPv6 address 2019:: 8:AB?
Respuesta
-
A.FF02：：1：：FF08：AB
-
B.FF02：：FF08：AB
-
C.FF02：：1：：FF20：19
-
D.FF02：：1：：FE08：AB
Pregunta 108
Pregunta
108.For the description of the PPP link establishment process, which of the following statement is wrong?
Respuesta
-
A. In the Establish phase, the PPP link performs LCP parameter negotiation. The negotiation content includes the maximum receiving unit MRU, authentication method, magic word and other options.
-
B. After the NCP negotiation is successful, the PPP link will maintain the communication state and enter the Terminate phase.
-
C. The Dead phase is also called the physical layer unavailable phase. When the two ends of the communication detect that the physical line is activated, they will migrate from the Dead phase to the Establish phase, which is the link establishment phase.
-
D. In the Network phase, the PPP link performs NCP negotiation. Select and configure a network layer protocol through NCP negotiation, and negotiate network layer parameters E. PPP link supports half-duplex and full-duplex modes
Pregunta 109
Pregunta
109.Which statement about SNMP protocol is correct?
Respuesta
-
A. SNMP uses UDP as the transport layer protocol
-
B. SNMP uses ICMP as the network layer protocol
-
C. SNMP protocol uses multicast to send management messages
-
D. The SNMP protocol only supports the sending of flash management messages on the Ethernet link
Pregunta 110
Pregunta
110. Which of the following commands can be used to view the router's CPU usage?
Respuesta
-
A.display cpu-state
-
B.display interface
-
C.display memory
-
D.display cpu-usage
Pregunta 111
Pregunta
111. Which of the following messages are used for IPv6 stateless address autoconfiguration? (Multiple Choice)
Respuesta
-
A.NS
-
B.RA
-
C.NA
-
D.RS
Pregunta 112
Pregunta
112. Which of the following IPv6 addresses is a multicast address
Respuesta
-
A.FE80：：2E0：FCFF：FEEF：FEC
-
B.FC00：：2E0：FCFF：FEEF：FEC
-
C.FF02：：2E0：FCFF：FEEF：FEC
-
D.2000：：2E0：FCFF：FEEF：FEC
Pregunta 113
Pregunta
113.Which of the following statements about IPv6 address configuration are correct? (Multiple Choice)
Respuesta
-
A. IPv6 supports stateless automatic configuration
-
B. IPv6 address supports automatic configuration in multiple ways
-
C. IPv6 supports DHCPv6 for address configuration
-
D. IPv6 address can only be configured manually
Pregunta 114
Pregunta
114. A device has been configured to complete the Telnet configuration. The device login address is 10.1.1.10. The Telnet user name is admin and the password is Huawei@123. Which of the following is the correct way to log in to this device using telnetlib?
Respuesta
-
A.telnetlib.Telnet（10.1.1.0,23,admin,Huawei@123）
-
B.telnetlib.Telnet（10.1.1.0）
-
C.telnetlib.Telnet（10.1.1.0,23, Huawei@123）
-
D.telnetlib.Telnet（10.1.1.0,admin）
Pregunta 115
Pregunta
115.The classic network forwarding method is based on router routing table forwarding. The forwarding method of OpenFlow switches is based on flow table forwarding. Which of these two forwarding methods are correct? (Multiple Choice)
Respuesta
-
A. The routing table is of fixed length. A device can only have one public routing table
-
B. The flow table is variable length. A network device can only have one flow table
-
C. The matching method of the flow table is to match the MAC address and IP address of the traffic at the same time
-
D. The matching method of the address table is to match the route of the destination network segment with the longest mask
Pregunta 116
Pregunta
116. The router running OSPF can reach the FULL state after LSDB synchronization is completed
Respuesta
- True
- False
Pregunta 117
Pregunta
117.In the OSPF broadcast network, which routers will a Dothter router exchange link state information with? (Multiple Choice)
Respuesta
-
A. BDR
-
B. All OSPF neighbors
-
C. DR Other
-
D. DR
Pregunta 118
Pregunta
118.Which of the following IPv4 addresses the host uses cannot directly access the Internet?
Respuesta
-
A.100.1.1.1
-
B.50.1.1.1
-
C.10.1.1.1
-
D.200.1.1.1
Pregunta 119
Pregunta
119. What kind of message does the OSPF protocol use to confirm the received LSU message?
Respuesta
-
A.LSU
-
B.LSR
-
C.LSACK
-
D.LSA
Pregunta 120
Pregunta
120. The link aggregation interface can only be used as a Layer 2 interface
Respuesta
- True
- False
Pregunta 121
Pregunta
121. The RSTP protocol uses the P/A mechanism to speed up the speed of the upstream port to the Forwarding state, but what is the reason why there is no temporary loop?
Respuesta
-
A. Speed up port role election
-
B. Through the synchronization mechanism to ensure that no temporary loop occurs
-
C. Edge ports are introduced
-
D. Shorten the time of Forward Delay
Pregunta 122
Pregunta
122.Which of the following statements about router-on-a-stick are correct? (Multiple Choice)
Respuesta
-
A. Use only one physical link connection between the switch and the router
-
B. Need to create a sub-interface on the router
-
C. One physical connection per VLAN
-
D. On the switch, configure the port connected to the router as a Trunk port, and allow frames of the relevant VLAN to pass
Pregunta 123
Pregunta
123.After the system restarts the static MAC address table, the saved entries will not be lost.
Respuesta
- True
- False
Pregunta 124
Pregunta
124. As shown in the figure below, the MAC address table of SWA is as follows. The switch can't learn the MAC address of HOST A all the time. Which of the following is impossible?
Image:
21 (binary/octet-stream)
Respuesta
-
A. The G0/0/1 port of the switch has disabled MAC address learning
-
B. SWA turns off the MAC address learning function of the VLAN to which host A belongs
-
C. HOST A did not send any data frames
-
D. The G0/0/1 port of the switch is set to ACCESS mode
Pregunta 125
Pregunta
125.As shown in the network below, all switches enable STP protocol. Disable SWA's G0/0/2 port configuration BPDU sending function, SWC G0/0/1 re-converges to become the root port, about this process, which of the following statements are correct? (Multiple Choice)
Image:
22 (binary/octet-stream)
Respuesta
-
A. SWC sends TCN BPDU message to SWB
-
B. SWB forwards TCN BPDU to SWA
-
C. SWB sends configuration BPDU with TCA set to SWC
-
D. SWA sends configuration BPDU with TC set
Pregunta 126
Pregunta
126.In standard STP mode, which of the following non-root switches will forward the TC set BPDU generated by the root switch?
Respuesta
-
A. Designated port
-
B. Root port
-
C. Backup port
-
D. Preparation port
Pregunta 127
Pregunta
127. The router Radius information configuration is shown in the figure. Which of the following statement is correct? (Multiple Choice)
Image:
23 (binary/octet-stream)
Respuesta
-
A. The source IP source address of the Radius packet sent by the router is 200.0.12.2
-
B. The IP address of the accounting server is 200.0.12.1
-
C. The IP address of the authorization server is 200.0.12.1
-
D. The IP address of the authentication server is 200.0.12.1
Pregunta 128
Pregunta
128.f a windows host is started for the first time, if the IP address is obtained by DHCP, then what is the source IP address of the first packet sent by this host?
Respuesta
-
A.127.0.0.1
-
B.169.254.2.33
-
C.0.0.0.0
-
D.255.255.255.255
Pregunta 129
Pregunta
129.In order to implement the FIT AP online, the FIT AP first needs to obtain the IP address of the AC. Which of the following is not included in the method of obtaining the IP address of the AC by the FIT AP?
Respuesta
-
A. Broadcasting method
-
B. Static designation method on AP
-
C. Multicast mode
-
D. DHCP Option mode
Pregunta 130
Pregunta
130.How to add AP on AC? (Multiple Choice)
Respuesta
-
A. Add online
-
B. Automatically discover AP
-
C. Import AP offline
-
D. Manually confirm APs in the uncertified list
Pregunta 131
Pregunta
131. Which of the following messages is used by AP to request software version from AC?
Respuesta
-
A.VRP System Request
-
B.Software Request
-
C.Image Data Request
-
D.Image package Request
Pregunta 132
Pregunta
132. The IEEE 802.11ac standard only supports the 5GHz frequency band.
Respuesta
- True
- False
Pregunta 133
Pregunta
133. To query the configuration information of the device's OSPF protocol, which of the following commands can be used? (Multiple Choice)
Respuesta
-
A.display ospf peer
-
B. Enter the command "display this" in the OSPF protocol view
-
C.display current-configuration
-
D.dis ip routing-table
Pregunta 134
Pregunta
134.Which of the following does not include in VRP system login method?
Respuesta
-
A.Telnet
-
B.Netstream
-
C.SSH
-
D.web
Pregunta 135
Pregunta
135.In which view can the administrator modify the device name for the router?
Respuesta
-
A.User-view
-
B.Protocol-view
-
C.System-view
-
D.Interface-view
Pregunta 136
Pregunta
136. If the transport layer protocol is UDP, the value of the network layer Protocol field is 6
Respuesta
- True
- False
Pregunta 137
Pregunta
137.If the application layer protocol is Te1net, what is the value of the Protoco1 field in the IPv4 header?
Respuesta
-
A.23
-
B.17
-
C.6
-
D.67
Pregunta 138
Pregunta
138.In the network shown in the figure below, host A is not configured with a gateway, and host B has the ARP cache of the gateway. Use the command ping 11.0.12.1 on host A. Which of the following statements are correct?
Image:
24 (binary/octet-stream)
Respuesta
-
A. No data packets will be sent from host A
-
B. The IP address of the data packet sent by host A is 11.0.12.1
-
C. The destination MAC address of the data frame sent by host A is MAC-C
-
D. The destination MAC address of the data frame sent by host A is MAC-B
Pregunta 139
Pregunta
139.Which layer of the OSI reference model does the router work at?
Respuesta
-
A. Data link layer
-
B. Transport layer
-
C. Application layer
-
D. Network layer
Pregunta 140
Pregunta
140. VRP operating platform, which of the following commands can only view static routes?
Respuesta
-
A.display ip routing-table statistics
-
B.display ip routing-table verbose
-
C.display ip routing-table
-
D.display ip routing-table protocol static
Pregunta 141
Pregunta
141. Which OSPF version below is suitable for IPv6?
Respuesta
-
A.OSPFv1
-
B.OSPFv2
-
C.OSPFv3
-
D.OSPFv4
Pregunta 142
Pregunta
142.IP route-static 10.0.2.2 255.255.255.255 10.0.12.2 preference 20. Which is correct about this command? (Multiple Choice)
Respuesta
-
A. The NextHop of this route is 10.0.12.2
-
B. The priority of this route is 20
-
C. This route can guide the forwarding of packets with the destination IP address 10.0.2.2.
-
D. This route can guide the forwarding of packets with the destination IP address 10.0.12.2
Pregunta 143
Pregunta
143.What are the following characteristics of the default VLAN in the Layer 2 Ethernet switch? (Multiple Choice)
Respuesta
-
A. The default VLAN cannot be deleted manually
-
B. By default, all ports of the switch are member ports of the default VLAN
-
C. A default VLAN must be created before it can be assigned a port
-
D. The IP address configured on the switch will only be applied to the member ports of the default VLAN
Pregunta 144
Pregunta
144. Switch stacking supports more than two devices. Through stacking, multiple switches can be grouped into one logical device.
Respuesta
- True
- False
Pregunta 145
Pregunta
145. On which layer of the OSI reference model does the Ethernet switch work?
Respuesta
-
A. Network layer
-
B. Data link layer
-
C. Physical layer
-
D. Transport layer
Pregunta 146
Pregunta
146. The bridge ID of the STP protocol in the switching network is as follows. Which of the following bridge ID switches will become the root bridge?
Respuesta
-
A.4096 00-01-02-03-04-DD
-
B.32768 00-01-02-03-04-AA
-
C.32768 00-01-02-03-04-CC
-
D.32768 00-01-02-03-04-BB
Pregunta 147
Pregunta
147.Refer to the route-in-a-stick configuration in the figure below, it can be judged that the administrative department and the financial department can communicate with each other even if the ARP proxy is not enabled on the R1 sub-interface.
Image:
25 (binary/octet-stream)
Respuesta
-
A.True
-
B.False
Pregunta 148
Pregunta
148. Link aggregation is a common technology in enterprise networks. Which of the following descriptions are the advantages of link aggregation technology? (Multiple Choice)
Respuesta
-
A. Improve safety
-
B. Realize load sharing
-
C. Increase bandwidth
-
D. Improve reliability
Pregunta 149
Pregunta
149. The network administrator configures the Huawei router RTA as shown in the figure. If a user needs to be authenticated in the authentication domain "Huawei", the correct description below is ().
[RTA]aaa
[RTA-aaa]domain Huawei
RTA-aaa-domain-huawei]authentication-s cheme aul
[RTA-aaa-domain-huawei]authentication-scheme au2
Respuesta
-
A. "authentication-scheme aul" authentication will be used, if "au1" is deleted, "au2" authentication will be used
-
B. Will use "au2" authentication and will use "authentication-scheme au1" authentication
-
C. Will use "authentication-scheme au2" authentication
-
D. "authentication-scheme au2" authentication will be used, if "au2" is registered, "aul" authentication will be used
Pregunta 150
Pregunta
150.In the network shown in the figure, which of the following configurations can realize that host A can access the Internet, but host B can not? (Multiple Choice)
Image:
26 (binary/octet-stream)
Respuesta
-
A. acl number 2000 rule 5 deny source 100.0.12.0 0.0.0.255 rule 10 permit source 100.0.13.0 0.0.0.255 # Interface GigabitEthernet0/0/3 traffic-filter outbound ac1 2000 #
-
B. acl number 2000 rule 5 deny source 100.0.12.0 0.0.0.255 rule 10 permit # Interface GigabitEthernet0/0/3 traffic-filter outbound ac1 2000 #
-
C. acl number 2000 rule 5 permit source 100.0.12.0 0.0.0.255 rule 10 deny source 100.0.13.0 0.0.0.255 # Interface GigabitEthernet0/0/3 traffic-filter outbound ac1 2000 #
-
D. acl number 2000 rule 5 permit source 100.0.12.0 0.0.0.255 rule 10 deny # Interface GigabitEthernet0/0/3 traffic-filter outbound ac1 2000 #
Pregunta 151
Pregunta
151. As shown in the figure, RTA uses NAT technology and realizes multiple-to-multiple NAPT address translation by defining an address pool, so that hosts in the private network can access the public network. Suppose that there are only two public IP addresses in the address pool, and they have been assigned to hosts A and B for address conversion, and if host C also wants to access the public network, which of the following description is correct?
Image:
27 (binary/octet-stream)
Respuesta
-
A. Host C cannot be assigned a public network address and cannot access the public network
-
B. All hosts can access the public network by using the public network address in turn
-
C. RTA converts the source port of host C, and host C can access the public network
-
D. RTA assigns the interface address (200.10.10.3) to host C, host C can access the public network
Pregunta 152
Pregunta
152. The correct description of the information as shown in the figure is ().
[R1]display interface go/0/o
GigabitEthernet0/0/0 current state: Administratively DOWN Line protocol current state: DOWN
Respuesta
-
A. The GigabitEthernet 0/0/0 interface was manually closed by the administrator
-
B. GigabitEthernet 0/0/0 interface does not enable dynamic routing protocol
-
C. The GigabitEthernet 0/0/0 interface is not configured with an IP address
-
D. GigabitEthernet 0/0/0 interface is connected to a wrong cable
Pregunta 153
Pregunta
153. As shown in the figure below, all switches enable the STP protocol and keep other configurations in their default state. When the network is stable, which of the following statements are correct? (Multiples choice)
Image:
28 (binary/octet-stream)
Respuesta
-
A. Both ports of SWB are in Forwarding state
-
B. SWB is the root bridge in this network
-
C. SWA is the root bridge in this network
-
D. Both ports of SWC are in Forwarding state
Pregunta 154
Pregunta
154. What is the total length of the IPv6 address in bits?
Respuesta
-
A.96
-
B.64
-
C.32
-
D.128
Pregunta 155
Pregunta
155. The IPv4 address assigned by the network administrator to a host in the network is 192.168.1.1/28. How many hosts can be added to the network where this host is located?
Respuesta
-
A.12
-
B.15
-
C.13
-
D.14
Pregunta 156
Pregunta
156. All ports on the root bridge switch are designated ports
Respuesta
- True
- False
Pregunta 157
Pregunta
157. As shown in the figure below, host A and host B cannot communicate
Image:
29 (binary/octet-stream)
Respuesta
- True
- False
Pregunta 158
Pregunta
158. Which of the following statements about IPv6 multicast addresses are correct? (Multiple Choice)
Respuesta
-
A. Provide redundant functions for services
-
B. Realize load sharing of services
-
C. The packet whose destination address is a multicast address will be sent to the nearest network interface in the sense of routing
-
D. Multicast addresses and unicast addresses use the same address space
Pregunta 159
Pregunta
159. What is the number range of advanced ACL?
Respuesta
-
A.3000-3999
-
B.2000-2999
-
C.4000~～4999
-
D.6000~6031
Pregunta 160
Pregunta
160. The basic header length of IPv6 packets is a fixed value.
Respuesta
- True
- False
Pregunta 161
Pregunta
161. In which of the following network types does the OSPF protocol need to elect DR and BDR? (Multiple choice)
Respuesta
-
A. Point to multipoint
-
B. NBMA
-
C. Point-to-point type
-
D. Broadcast type
Pregunta 162
Pregunta
162. By default, how long is the lease period of the IP address assigned by the DHCP server?
Respuesta
-
A.12h
-
B.1h
-
C.24h
-
D.18h
Pregunta 163
Pregunta
163. When deploying ACL on Huawei devices, which of the following description is correct? (Multiple choice)
Respuesta
-
A. ACL can match the TCP/UDP port number of the message, and can specify the range of port numbers
-
B. The same ACL can be called under multiple interfaces
-
C. When ACL defines rules, it can only proceed in the order of 10, 20, and 30
-
D. ACL cannot be used to filter OSPF traffic, because OSPF traffic does not use UDP protocol encapsulation
-
E. When calling ACL under the interface, it can only be applied to the outbound direction
Pregunta 164
Pregunta
164. In the network shown in the figure below, when the OSPF neighbor status is stable, what is the neighbor status of Router B and Router C?
Image:
30 (binary/octet-stream)
Respuesta
-
A.Attempt
-
B.2-way
-
C.Full
-
D.Down
Pregunta 165
Pregunta
165. Which parameter is used in the spanning tree protocol for root bridge election?
Respuesta
-
A. Port ID
-
B. Bridge priority
-
C. Root path cost
-
D. Bridge ID
Pregunta 166
Pregunta
166. MIB (Management Information Base) is a virtual database that exists only in NMS.
Respuesta
- True
- False
Pregunta 167
Pregunta
167. Now it is necessary to implement a Python automation script Te1net to the device to view the device running configuration. Which of the following statements is wrong?
Respuesta
-
A. Telnetlib can achieve this function.
-
B. Use telnet.Telnet (host) to connect to the Telnet server.
-
C. can use telnet.write(b"display current-configuration \n") to input the command to view the current configuration of the device.
-
D. telnet.c1ose() is used after a command entered every time, the function is that the user waits for the switch to return information.
Pregunta 168
Pregunta
168. The network administrator of a certain company wants to uniformly divide the users who often access the company network from different switches into VLAN 10 when they frequently change office locations. Which of the following methods should be used to divide VLANs?
Respuesta
-
A. Divide VLAN based on protocol
-
B. Divide VLAN based on MAC address
-
C. Divide VLAN based on port
-
D. Divide VLAN based on subnet
Pregunta 169
Pregunta
169. The picture shows the display startup information of AR2200 router. Regarding this information, which of the following statement is wrong?
Image:
31 (binary/octet-stream)
Respuesta
-
A. next system startup file system can use the command "startup system software <startup-software-name>" to modify
-
B. The running configuration file is not saved
-
C. The system file used by the device this time is ar2220-v200r003c00spc00.cc
-
D. The system file cannot be modified when the device is started next time
Pregunta 170
Pregunta
170. The administrator plans to implement route backup by configuring static floating routes, what is the correct way to achieve this?
Respuesta
-
A. The administrator needs to configure different metric values for the main static route and the standby static route
-
B. The administrator needs to configure different TAGs for the main static route and the standby static route
-
C. The administrator only needs to configure two static routes
-
D. The administrator needs to configure different protocol priority values for the main static route and the standby static route
Pregunta 171
Pregunta
171. There are hosts in a private network that need to access the Internet. In order to achieve this requirement, which of the following configurations should the administrator do on the edge router of the network? (Multiple Choice)
Respuesta
-
A. Default route
-
B.STP
-
C.DHCP
-
D.NAT
Pregunta 172
Pregunta
172. Which of the following descriptions about Trunk port and Access port is correct?
Respuesta
-
A. Trunk port can only send untagged frames
-
B. Access port can only send untagged frames
-
C. Access port can only send tagged frames
-
D. Trunk port can only send tagged frames
Pregunta 173
Pregunta
173. Which of the following statements about the division of OSPF protocol area is wrong?
Respuesta
-
A. Area 0 is the backbone area, and other areas must be connected to this area
-
B. The LSDBs in the routers in the same OSPF area are completely consistent
-
C. Dividing OSPF areas can reduce the LSDB scale of some routers
-
D. Only ABR can be used as ASBR
Pregunta 174
Pregunta
174. NFV (Network Functional Virtualization), network function virtualization realizes the deployment of network applications in a software-based way.
Respuesta
- True
- False
Pregunta 175
Pregunta
175. UDP cannot guarantee the reliability of data transmission and does not provide functions such as message sequencing and flow control. It is suitable for flows with low transmission reliability requirements but high transmission speed and delay requirements.
Respuesta
- True
- False
Pregunta 176
Pregunta
176. The administrator cannot log in to the Huawei router through Telnett, but other administrators can log in normally, so which of the following are the possible reasons? (Multiple Choice)
Respuesta
-
A. The authority level of the administrator user account has been modified to 0
-
B. The administrator user account has been disabled
-
C. The Te1net service of the AR2200 router has been disabled
-
D. The administrator user account has been deleted
Pregunta 177
Pregunta
177. VRP operating system commands are divided into 4 levels: access level, Monitoring level, Configuration level, and Management level. Which level can run various business configuration commands but cannot operate the file system?
Respuesta
-
A. Configuration level
-
B. Monitoring level
-
C. Access level
-
D. Management leve
Pregunta 178
Pregunta
178. Using a traditional landline to make calls is a way of network communication
Respuesta
- True
- False
Pregunta 179
Pregunta
179. In the VRP interface, use the command delete vrpcfg.zip to delete a file, which must be emptied in the recycle bin to completely delete the file.
Respuesta
- True
- False
Pregunta 180
Pregunta
180. In what state does the OSPF protocol determine the master-slave relationship of DD packets?
Respuesta
-
A.ExStart
-
B.Full
-
C.2-way
-
D.Exchange
Pregunta 181
Pregunta
181. The following two configuration commands can realize the router RTA to the same destination 10.1.1.0 routing master and backup backup.
【RTA】ip route-static 10.1.1.0 24 12.1.1.1 permanent
【RTA】ip route-static 10.2.2.0 24 13.1.1.1.
Respuesta
- True
- False
Pregunta 182
Pregunta
182. In the network shown in the figure below, the bridge ID of the switch has been marked. Enter the command stp root secondary on the SWD switch, and which of the following switch will become the root bridge of this network?
Image:
32 (binary/octet-stream)
Respuesta
-
A.SWC
-
B.SWA
-
C.SWB
-
D.SWD
Pregunta 183
Pregunta
183. If the Length/Type of an Ethernet data frame = 0x8100, which of the following statements is correct?
Respuesta
-
A. There must be an IP header in the upper layer of this data frame
-
B. This data frame must carry VLAN TAG
-
C. There must be a UDP header in the upper layer of this data frame
-
D. There must be a TCP header in the upper layer of this data frame
Pregunta 184
Pregunta
184. FAT AP can independently complete wireless user access, wireless user authentication, and business data forwarding without AC.
Respuesta
- True
- False
Pregunta 185
Pregunta
185. There is no channel overlap in the 14 available frame segments in the 185.2.4 GHz frame segment.
Respuesta
- True
- False
Pregunta 186
Pregunta
186. In the WLAN network architecture, what is terminal equipment that supports the 802.11 standard called?
Respuesta
-
A.Client
-
B.AC
-
C.STA
-
D.AP
Pregunta 187
Pregunta
187. Which of the following characteristics does the OSPF protocol have? (Multiple Choice)
Respuesta
-
A. Easy to produce routing loops
-
B. Calculate the shortest path by number
-
C. Support the division of areas
-
D. Trigger an update
Pregunta 188
Pregunta
188. Which of the following statement about static routing is wrong?
Respuesta
-
A. Cannot automatically adapt to changes in network topology
-
B. Manual configuration by the network administrator
-
C. Low system performance requirements
-
D. Routers need to exchange routing information
Pregunta 189
Pregunta
189. In the network shown in the figure below, which of the following commands can be entered on the router to enable host A to ping host B? (Multiple choice)
Image:
33 (binary/octet-stream)
Respuesta
-
A. RTA: ip route-static 10.0.12.5 255.255.255.252 11.0.12.2 RTB: ip route-static 10.0.12.1 255.255.255.252 11.0.12.1
-
B. RTA: ip route-static 10.0.12.5 255.255.255.252 11.0.12.1 RTB: ip route-static 10.0.12.1 255.255.255.252 11.0.12.2
-
C. RTA: ip route-static 0.0.0.0 0.0.0.0 11.0.12.2 RTB: ip route-static 0.0.0.0 0.0.0.0 11.0.12.1
-
D. RTA: ip route-static 0.0.0.0 0.0.0.0 11.0.12.1 RTB: ip route-static 0.0.0.0 0.0.0.0 11.0.12.2
Pregunta 190
Pregunta
190. Which of the following IPv4 addresses can be used by a host to directly access the Internet?
Respuesta
-
A.192.168.1.1/24
-
B.172.32.1.1/24
-
C.172.16.255.254/24
-
D.10.255.255.254/24
Pregunta 191
Pregunta
191. The switch becomes a logical switch after stacking and clustering, and Eth-Trunk across physical devices can be deployed to improve network reliability.
Respuesta
- True
- False
Pregunta 192
Pregunta
192. What is the value of TPID defined by IEEE802.1Q?
Respuesta
-
A.0x8200
-
B.0x7200
-
C.0x8100
-
D.0x9100
Pregunta 193
Pregunta
193. As shown in the figure below, assuming the other configurations of the switch are kept in the default state, which port of the following switch will become the designated port? (Multiple Choice)
Image:
34 (binary/octet-stream)
Respuesta
-
A. SWC's G0/0/1
-
B. SWA's G0/0/3
-
C. SWC's G0/0/2
-
D. SWB's G0/0/1
Pregunta 194
Pregunta
194. The management of users by NAS devices is based on domains. Each user belongs to a domain, and a domain is a group of users who belong to the same domain.
Respuesta
-
A.TRUE
-
B.FALSE
Pregunta 195
Pregunta
195. Which of the following fields does the MPLS header include? (Multiple choice)
Respuesta
-
A.EXP
-
B.TTL
-
C.Label
-
D.Tos
Pregunta 196
Pregunta
196. Huawei ARG3 series routers have all SNMP versions (SNMPv1, SNMPv2c and SNMPv3) by default.
Respuesta
-
A.True
-
B.False
Pregunta 197
Pregunta
197. IPv6 address 2001: ABEF: 2240E: FFE2: BCC0: CD0: DDBE: 8D58 cannot be abbreviated.
Respuesta
-
A.True
-
B.False
Pregunta 198
Pregunta
198. Which state does the OSPF protocol use to indicate that the adjacency relationship has been established?
Respuesta
-
A.Full
-
B.2-way
-
C.Attempt
-
D.Down
Pregunta 199
Pregunta
199. The tracert diagnostic tool in Huawei routers is used to track the data forwarding path.
Respuesta
-
A.TRUE
-
B.False
Pregunta 200
Pregunta
200. The routing table output information of a router is shown in the figure. Which of the following statements is correct? (Multiple choice)
Image:
35 (binary/octet-stream)
Respuesta
-
A. the local router to the NextHop of 10.0.2.2 is 10.0.21.2
-
B. the local router to the NextHop of 10.0.2.1 is 10.0.21.2
-
C. the local router to the NextHop of 10.0.2.2 is 10.0.12.2
-
D. the local router to the NextHop of 10.0.0.1 is 10.0.12.2
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