A.10B

B.40B

C.60B

D.20B

A. Reduce the number of equipment

B. Reduce the use of IP addresses

C. Reduce the number of link connections

D. Reduce routing table entries

A.TRUE

B.False

A.TRUE

B.False

A.TRUE

B.False

A.2

B.1

C.3

D.4

A. Portal authentication

B. MAC authentication

C. Radius certification

D. 802.1X authentication

A.802.11ac

B.802.11n

C.802.11g

D.802.11a

A.Probe

B.Join

C.Discovery

D.Beacon

A. Ray

B. Radio waves

C. Infrared

D. Laser

A.Traffic Class

B.Payload Length

C.Version

D.Next Header

A. Access link

B. Trunk link

C. Trunk link

D. Hybrid link

A. Binary mode

B. Byte mode

C. Text mode

D. Stream byte mode

A. 192.168.176.160/27

B. 192.168.176.0/25

C. 192.168.176.96/27

D. 192.168.176.48/29

A. Manage routers

B. Generate IP address

C. Dynamically generate routing entries

D. Control router interface status

A. The port not only forwards user traffic but also processes BPDU packets.

B. The port only receives and processes BPDUs, and does not forward user traffic.

C. The port will build a MAC address table based on the received user traffic, but does not forward user traffic.

D. The port not only does not process BPDU packets, but also does not forward user traffic

A. The designated port can forward configuration BPDU messages to the network segment connected to
it.

B. The port on the root switch must not be a designated port.

C. Each switch has only one designated port.

D. The port on the root switch must be a designated port

A. GE electrical interfaces and GE optical interfaces cannot be added to the same Eth-Trurnk interface.

B. Eth-Trurnk interfaces cannot be nested.

C. When two devices are connected, it is necessary to ensure that the link aggregation mode on both devices is the same.

D. GE interface and FE interface cannot be added to the same Eth-Trunk interface.

A. 1

B. 2

C. 3

D. 4

A. Discovery

B. Beacon

C. Probe

D. ResponseProbe Request

A. The label is encapsulated between the network layer and the transport layer

B. The tags are carried by the head of the packet, does not contain topology Information

C. The label is used to uniquely identify the forwarding equivalence class FEC to which a packet belongs

D. The label is a short identifier with a fixed length. It has only local meaning

A. Use instant messaging software (such as, QQ, WeChat) to chat with friends

B. Use a computer to visit the company's official website

C. Use computer to watch video online

D. Download emails from the company mailbox to your compute

A. TrUe

B. FALSE

A. HardwareType

B. Protocol Address of sender

C. Operation Code

D. Protocol Type

A. Application layer, transport layer, network layer, data link layer, physical layer

B. Application layer, session layer, presentation layer, transport layer, network layer, data link layer, physical layer

C. Application layer, presentation layer, session layer, network layer, transport layer, data link layer, physical layer

D. Application layer, presentation layer, session layer, transport layer, network layer, data link layer, physical layer

A. Bandwidth

B. Sysname

C. Delay

D. Hop count

A. 255.255.255.240

B. 255.255.255.128

C. 255.255.255.192

D. 255.255.255.0

A. The source MAC address of the data frame must not be FFFF-FFFF-FFFF

B. The data frame is an IEEE 802.3 frame

C. The data frame is an Ethernet II frame

D. The destination MAC address of the data frame may be FFFF-FFFF-FFFF

A. Learning

B. Discarding

C. Forwarding

D. Blocking

A. When the Hybrid port sends data frames, it must carry VLAN TAG

B. Hybrid port only receives data frames with VLAN TAG

C. Hybrid port can strip TAG of VLAN in the direction of the interface

D. Hybrid port does not require PVID

A. Heavy workload and difficult to manage

B. Reuse of IP address can be realized

C. Avoid IP address conflicts

D. When the configuration information changes (such as DNS), only the administrator needs to modify it on the DHCP server to facilitate unified management

A. Is a fully open source high-level programming language

B. Has a rich third-party library

C. Have a clear grammatical structure, simple and easy to learn, colleagues run efficiently

D. can be used for operation and maintenance of automation scripts, Artificial Intelligence, Data science
and many other fields

A.SNMP

B.RSTP

C.NAT

D.OSPF

A.ICMP

B.UDP

C.TCP

D.ARP

A. The header of an LSA can uniquely identify an LSA

B. LSA header is only a small part of LSA

C. DD packet contains detailed information about LSA

D. The DD packet contains only LSA header information

A. Realize the mutual communication between the same network disconnection equipment

B. Forwarding according to the source IP address of the received data packet

C. Establish routing tables through multiple protocols

D. Guide data forwarding according to the routing table

A.2

B.4

C.5

D.3

A. greater

B. Consistent

C. Not necessarily

D. smaller

A.Learning

B.Discarding

C.Listening

D.Forwarding

A. Edge port

B. Root port

C. Fast port

D. Backup por

A.13

B.15

C.14

D.16

A. Domain name resolution

B. File transfer

C. Remote access

D. Mail transmission

A.SSID

B.BSS

C.ESS

D.BSSID

A. Higher bandwidth

B. Lower transmission delay

C. Higher power consumption

D. Higher number of access terminals per AP

A. Unicast address

B. Broadcast address

C. Multicast address

D. Anycast address

A.2031:0:720C:0:0:9E:839A:130B

B.2031:0:720C::9E0:839A:130B

C.2031:0:720C:0:0:9E0:839A:130B

D.2031::720C::9E0:839A:130B

A.IGMPv6

B.ICMPv6

C.UDPv6

D.TCPv6

A.16

B.32

C.24

D.30

A. Encapsulation and decapsulation are important steps to realize different protocol functions

B. Interworking between different networks

C. Shorten the length of the message

D. Encapsulation and decapsulation can complete network fault location

A. UDP is suitable for the transmission of delay-sensitive traffic, and can be reorganized according to the
sequence number field in the message header

B. The range of well-known port numbers is 0-1023

C. UDP uses the STNOACK flag to request and confirm the establishment of a connection

D. TCP establish a connection is a three-way handshake process, TCP terminates the connection will
have to go through four-way handshake

A. The wireless device has no wired interface

B.FIT AP-like independent user access, Authentication, Forwarding services and other functions

C. Wireless Controller AC-like at the aggregation layer of the entire network, providing high-speed, Safe
and Reliable VLAN business

D. FAT AP generally works with wireless controller

A.Versatile Redundancy Platform

B.Versatile Routing Protocol

C.Versatile Routing Platform

D.Virtual Routing Platform

A.172.16.1.128

B.172.16.2.0

C.172.16.1.1

D.172.86.1.253

A.192.168.10.112/30

B.237.6.1.2/24

C.127.3.1.4/28

D.145.4.2.55/26

A. Designated port

B. Root port

C. Alternate port

D. Backup port

A. Compare the priority of the interface first, and it is impossible to determine the better one to continue to
compare the interface number, the smaller the better

B. Only compare interface priority

C. Compare device priority

D. Only compare interface numbers

A. Port ID

B. VLAN ID

C.Bridge ID

D.Root ID

A.rule 10 permit 12-protoco1 arp

B.rule 25 permit source 192.168.1.1 0.0.0.0

C.rule 20 permit source-mac 0203-0405-0607

D.rule 15 permit vlan-id 100

A. easy-ip

B. NAPT

C. Static NAT

D.Basic NAT

A. Each administrator uses a different public IP address of the device when running the Telnet command

B. The user authentication mode configured by Telnet must select AAA mode

C. When configuring each administrator's account, different permission levels need to be configured

D. Configure three user names and their corresponding passwords in the AAA view

A. The server's confirmation response to the REQUEST message

B. The client is used to find the DHCP server

C. The client requests configuration confirmation, or renews the lease

D. The DHCP server is used to respond to the DHCP DISCOVER message, which carries various
configuration information

A. IP address

B. Gateway address

C. Operating system name

D. DNS address

A. IPsec

B.WEP

C.CAPWAP

D.WAP

A. Upgrade software version

B. Download the configuration file

C. Establish CAPWAP tunnel

D. Request configuration file

A.4

B.2

C.16

D.8

A. Negotiate network layer address

B. Negotiate authentication agreement

C. Detect link loops

D. Negotiate the maximum receiving unit MRU

A. Destination option extension header

B. Fragmentation extension header

C. Hop-by-hop option extension header

D. VLAN extension header

A.NETCONF

B.RESTCONF

C.JSON

D.XML

A. Simple network level

B. Fewer users

C. Simple network requirements

D. Wide coverage

A. TAB prompts the most recently entered command

B. CTRL+C to stop the current command

C. The left cursor key (<) moves the cursor to the left position.

D.CTRL+Z back to user view

A.Error :Ambiguous command found at' position

B.Error :Incomplete command found at' position

C.Error: Too many parameters found at' position

D.Error: Wrong parameter found at 'position

A. Designated port

B. Alternate port

C. Disable port

D. Root port

A.5

B.10

C.15

D.20

A.Neighbor

B.Network Mask

C.HelloInterva

D.Sysname

A.200.200.200.202

B.200.200.200.200

C.200.200.200.203

D.200.200.200.1

A.[Huawei-Seria10] ip route-static 0.0.0.0 0.0.0.0 0.0.0.0

B.[Huawei] ip route-static 0.0.0.0 0.0.0.0 192.168.1.1

C.[Huawei] ip route-static 0.0.0.0 0.0.0.0 0.0.0.0

D.[Huawei] ip route-static 0.0.0.0 255.255.255.255 192.168.1.1

A. The destination IP address of the Echo Reply message

B. The source IP address of the Echo Request message

C. Interface for receiving Echo Reply messages

D. Interface for sending Echo Request messages

A. Dynamic MAC address table entry

B. Static MAC address table entry

C. Port MAC address table entry

D. Device MAC address table entry

A. Number of member ports

B. Bandwidth of member ports

C. If an IP address is configured on the member port

D. If the member port is on the public or private network

A. If the port default vlan 3 command is configured for the connected remote device, VLAN 3 cannot
communicate between the two devices

B. All VLAN data frames are allowed to pass through this port

C. The connected peer device can dynamically determine which VLAN IDs are allowed to pass

D. The opposite port connected to the port must be configured with port trunk permit vlan all

A. Blocking

B. Learning

C. Listening

D. Disabled

A. MAC address

B. Subnet mask

C. IP prefix

D. IP address

A. The address pool of the DHCP server has all been allocated

B. Some hosts cannot communicate with the DHCP server normally, and the client systems of these hosts
automatically generate addresses in the range of 169.254 0.0

C. There is another DHCP server in the network that works more efficiently

D. Some hosts cannot communicate with the DHCP server normally, and the client systems of these hosts automatically generate addresses in the range of 127.254.0.0

A. BSS

B. SSID

C. BSSID

D.ESS

A. SN certification

B. Password authentication

C. MAC authentication

D. Not certified

A. s bit has only 1 bit in frame mode and 2 bit in cell mode

B. s bit exists in every MPLS packet header

C. It is used to mark whether there are other labels behind this label, 1 means yes, 0 means no

D. It is used to mark whether there are other labels behind this label, 0 means yes, 1 means no

A. trap message

B. get-response message

C. set-request message

D. get-request message

A. Multicast address

B. Link local address

C. Global semicast address

D. Anycast address

A.802.11a

B.802.11g

C.802.11ax

D.802.11n

A. By extending the existing protocol (eg IGP), the existing network can better and smoothly evolve

B. SR (Segment Routing) adopts IP forwarding, no additional maintenance is required for another label
forwarding table

C. Adopting source routing technology to provide the ability to quickly exchange text between the network
and upper-layer applications

D. Support the centralized control mode of the controller and the distributed control mode of the
transponder at the same time, and provide a balance between centralized control and distributed control

A.00EO-FCEF-FFFE-OFEC

B.02EO-FCFF-FEEF-0FEC

C.00EO-FCFF-FEEF-0FEC

D.02EO-FCEF-FFFE-0FEC

A. Dynamic routing protocols take up more system resources than static routing protocols

B. After the link fails, the static route can automatically complete the network convergence.

C. After the administrator deploys the dynamic routing protocol in the corporate network, later
maintenance and expansion can be more convenient

D. Static routing is simple to configure and easy to manage when applied in the enterprise

A. All networks should be declared in zone 0

B. The number of the backbone area cannot be 2

C. Before configuring the OSPF area, an IP address must be configured for the loopback interface of the
router

D. The number range of the area is from 0.0.0.0 to 255.255.255.255

A. Source IP address

B. Source MAC address

C. Destination MAC address

D. Destination IP address

A. Access layer

B. Core layer

C. Convergence layer

D. Network layer

A. Network optimization

B. Network implementation

C. Planning and design

D. Network operation and maintenance

A. Initial configuration

B. Current configuration

C. New configuration

D. Default parameters

A. If the priority values of the two routers are equal, the router with the larger Router ID is selected as the
DR

B. By default, all routers in this broadcast network will participate in the DR election

C. If the priority values of the two routers are different, select the router with the lower priority as the DR

D. DR and BDR should also establish an adjacency relationship

A. Neighbor

B.Network mask

C.Sysname

D.Hellointerval

A.10.1.1.2

B.10.1.1.3

C.10.1.1.4

D.10.1.1.1

A.172.16.2.0

B.172.16.1.128

C.172.16.1.1

D.172.16.1.253

A. Source IPv4 address

B. Sequence number

C. Destination IPv4 address

D. TTL

A. LSU

B. LSACK

C. LSR

D. LSA

A.True

B.False

A. The basic access control list number range is 1000-2999

B. The access control list number range of the second layer is 4000-4999

C. The number range of interface-based access control list is 1000-2000

D. The range of advanced access control list numbers is 3000-4000

A.2000-2999

B.3000-3999

C.4000～4999

D.6000～6031

A.127.0.0.1

B.224.0.0.1

C.224.0.0.2

D.255.255.255.255

A.802.11g

B.802.11a

C.802.11b

D.802.11ac

A.True

B.False

A.VT

B.VAP

C.VAC

D. WAP

A.MANO is composed of NFVO.VNFN and VIM.

B.VFM. Virtual network function management, responsible for the life cycle management of VNF

C.VIM (Virtualised Infrastructure Manager) virtual resource management, responsible for the virtualization
of infrastructure.

D. NFVO (NEV Orchestrator) is responsible for business orchestration

A.telnet_Read_all

B.telnet_read_very_lazy

C.telnet._read_eager

D.telnet_read _very_eager

A. The control plane is responsible for the interaction of routing protocols between devices

B. The control plane provides equipment monitoring capabilities

C. The control plane is responsible for directing data forwarding

D. The control plane is responsible for generating the IP routing table

A. Hostname Huawei

B. Sysname Huawei

C. Rename Huawei

D.Do name Huawei

A. ARP reply packets are sent unicast

B. Any link layer protocol requires ARP messages to assist in obtaining data link layer identification

C. ARP packets cannot be forwarded to other broadcast domains

D. ARP request message is sent by broadcast

A. A home network

B. Office network of a company

C. Internet

D. Broadband Metropolitan Area Network

A. DR must be the highest priority device in the network

B. Router ID, the larger the value, the more preferred to be elected as DR

C. DR election is preemptive

D. An interface priority is 0, then the interface cannot be a DR

A. Interface

B. Destination/mask

C. Nexthop

D. Protocol

A. The source IP is 192.168.1.1, the destination IP is 172.16.10.1, and all TCP packets whose destination
port number is 21 match this rule

B. The source IP is 192.168.1.1, the destination IP is 172.16.10.2, and all 1CP packets whose destination
port number is 21 match this one

C. The source IP of the rule is 192.168.1.1, the destination IP is 72.16.10.3. All TCP packets with the
destination port number of 21 match this rule

D. The type of ACL is a basic ACL

A. Protocol numbe

B. Destination port number

C. Physical interface

D. Time range

A. Trap

B. Response

C.Get Request

D. Get-Next Request

A.6

B.161

C.17

D.162

A. Anycast address

B. Broadcast address

C. Unicast address

D. Multicast address

A. Trunk ports can only send untagged frames

B. Access port can only send tagged frames

C. Trunk ports can only send tagged frames

D. Access port can only send untagged frames

A. This data frame must carry VLAN TAG

B. There must be a UDP header in the upper layer of this data frame

C. There must be an IP header in the upper layer of this data frame

D. There must be a TCP header in the upper layer of this data frame