10938105
Descripción
Test por Faheem Ahmed, actualizado hace más de 1 año
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Creado por Faheem Ahmed
hace alrededor de 7 años
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Pregunta 1
Pregunta
An IPv4 address is _________ bits.
Respuesta
-
8
-
16
-
32
-
64
Pregunta 2
Pregunta
What is the class of the address 200.66.10.21?
Respuesta
-
A
-
B
-
C
-
D
Pregunta 3
Pregunta
What is the hostid of the address 12.11.1.21?
Respuesta
-
11.1.21
-
1.21
-
21
-
None
Pregunta 4
Pregunta
What is the address of the network to which the host 130.8.119.1 is connected ?
Respuesta
-
130.8.119.0
-
130.8.0.0
-
130.0.0.0
-
None
Pregunta 5
Pregunta
Which error detection method involves polynomials?
Respuesta
-
VRC
-
LRC
-
CRC
-
checksum
Pregunta 6
Pregunta
In cyclic redundancy checking, the divisor is _______the CRC.
Respuesta
-
the same size as
-
one bit less than
-
one bit more than
-
two bits more than
Pregunta 7
Pregunta
IPV6 address has ____________ bits.
Respuesta
-
32
-
64
-
128
-
256
Pregunta 8
Pregunta
What is the maximum number of IP addresses that can be assigned to hosts on a local subnet that uses the 255.255.255.224 subnet mask?
Respuesta
-
16
-
32
-
62
-
30
Pregunta 9
Pregunta
You need to subnet a network that has 5 subnets, each with at least 16 hosts. Which will be your choice?
Respuesta
-
255.255.255.192
-
255.255.255.224
-
255.255.255.240
-
255.255.255.248
Pregunta 10
Pregunta
Which protocol does Ping use?
Respuesta
-
TCP
-
ARP
-
ICMP
-
DHCP
Pregunta 11
Pregunta
Which class of IP address provides a maximum of only 254 host addresses per network ID?
Respuesta
-
A
-
B
-
C
-
D
-
E
Pregunta 12
Pregunta
Which of the following devices takes data sent from one network device and forwards it to the destination node based on MAC address?
Respuesta
-
Hub
-
Switch
-
Router
-
Bridge
Pregunta 13
Pregunta
HUB is a _________ Device and Switch is a ________ Device.
Respuesta
-
Unicast, Multicast
-
Multicast, Unicast
-
Broadcast, Unicast
-
Unicast, Broadcast
Pregunta 14
Pregunta
The last address of IP address represents
Respuesta
-
Unicast address
-
Network address
-
Broadcast address
-
Multicast address
Pregunta 15
Pregunta
DNS stands for
Respuesta
-
Dynamic Name System
-
Dynamic Network System
-
Domain Name System
-
Domain Network Service
Pregunta 16
Pregunta
What is the size of MAC address?
Respuesta
-
16 bits
-
32 bits
-
48 bits
-
64 bits
Pregunta 17
Pregunta
What is the size of host bits in Class B of IP address?
Respuesta
-
4
-
8
-
16
-
32
Pregunta 18
Pregunta
What is the usable size of network bits in Class B of IP address?
Respuesta
-
4
-
8
-
14
-
16
Pregunta 19
Pregunta
Which of the following is/are protocols of Application?
Respuesta
-
FTP
-
DNS
-
Telnet
-
All the above.
Pregunta 20
Pregunta
Default administrative distance of Static Route
Respuesta
-
0
-
1
-
10
-
90
-
100
Pregunta 21
Pregunta
Which protocol working at the Transport layer provides a connectionless service between hosts?
Respuesta
-
IP
-
ARP
-
TCP
-
UDP
Pregunta 22
Pregunta
What protocol is used to find the hardware address of a local device?
Respuesta
-
DNS
-
ARP
-
IP
-
ICMP
Pregunta 23
Pregunta
A router ?
Respuesta
-
forwards a packet to all outgoing links.
-
forwards a packet to all outgoing links, except the link upon which the packet originated
-
forwards a packet to the next free outgoing link
-
determines on which outgoing link a packet is to be forwarded.
Pregunta 24
Pregunta
Which command does not show that two devices are failing to route packets between them successfully?
Respuesta
-
show interface
-
trace
-
telnet
-
ping
Pregunta 25
Pregunta
Which of the following ranges are considered well-known port numbers?
Respuesta
-
1–1023
-
1024 and above
-
1–256
-
1–65534
Pregunta 26
Pregunta
Which protocol does DHCP use at the Transport layer?
Respuesta
-
IP
-
TCP
-
UDP
-
ARP
Pregunta 27
Pregunta
Which class of IP address has the most host addresses available by default?
Respuesta
-
A
-
B
-
C
-
D
Pregunta 28
Pregunta
What does the command ip route 192.168.50.0 255.255.255.0 10.2.1.3 specify?
Respuesta
-
The router should use network 192.168.50.0 to get to address 10.2.1.3
-
Both 192.168.50.0 and 10.2.1.3 use a mask of 255.255.255.0
-
You want the router to trace a route to network 192.168.50.0 via 10.2.1.3
-
The router should use address 10.2.1.3 to get to devices on network 192.168.50.0
Pregunta 29
Pregunta
Match the following:
A. Repeaters 1. Data Link Layer
B. Bridges 2. Network Layer
C. Routers 3. Physical Layer
Respuesta
-
A --->2, B--->3, C--->1
-
A--->3, B---->1, C---->2
-
A--->3, B----->2, C---->1
-
A---->1, B---->2, C---->3
Pregunta 30
Pregunta
Which of the following is true of a Switch?
Respuesta
-
Switches forward packets based on IP address.
-
Switches forward packets based on MAC address.
-
Switches forward packets based on IPX address.
-
Switches forward packets based on Layer 3 address.
Pregunta 31
Pregunta
A client workstation is connected to a DHCP server through a switch and a router, The client machine has been able to access the network resources without any problem. However, after the recent configuration change on the DHCP server, the client workstation is not able to access any network resources. What is the likely solution.
Respuesta
-
Clear arp cache on the router
-
Use ipconfig command with /release and /renew options
-
Reset switch MAC address table
-
Issue a tracert command to DHCP server
Pregunta 32
Pregunta
Match the following:
1. Segments A. Data Link Layer
2. Packets B. Network Layer
3. Frames C. Transport Layer
Respuesta
-
1--->A; 2---->C; 3 --->B
-
1--->C; 2---->A; 3 --->B
-
1--->C; 2---->B; 3 --->A
-
1--->A; 2---->B; 3 --->C
Pregunta 33
Pregunta
Which of the following statements are true regarding the command ip route 172.16.4.0 255.255.255.0 192.168.4.2?
1. The command is used to establish a static route.
2. The default administrative distance is used.
3. The command is used to configure the default route.
4. The subnet mask for the source address is 255.255.255.0.
Respuesta
-
1 and 2
-
2 and 4
-
3 and 4
-
All of the above
Pregunta 34
Pregunta
If your routing table has a static, a RIP, and an IGRP route to the same network, which route will be used to route packets by default?
Respuesta
-
Any available route
-
RIP route
-
Static route
-
IGRP route
-
They will all load-balance.
Pregunta 35
Pregunta
A network administrator views the output from the show ip route command. A network that is advertised by both RIP and IGRP appears in the routing table flagged as an IGRP route. Why is the RIP route to this network not used in the routing table?
Respuesta
-
IGRP has a faster update timer.
-
IGRP has a lower administrative distance.
-
RIP has a higher metric value for that route.
-
The IGRP route has fewer hops.
Pregunta 36
Pregunta
Start and stop bits are used in serial communication for
Respuesta
-
Error detection
-
Error correction
-
Synchronization
-
Slowing down the communication
Pregunta 37
Pregunta
How many Character per sec (7bits + 1parity) can be transmitted over a 2400 bps line if the transfer is synchronous (1 "Start" and 1 "stop" bit)?
Respuesta
-
300
-
240
-
250
-
24
Pregunta 38
Pregunta
The Network topology that supports bi-directional links between each possible node is
Respuesta
-
Ring
-
Star
-
Tree
-
Mesh
Pregunta 39
Pregunta
In a broad Sense, a railway track is an example of
Respuesta
-
Simplex
-
Half Duplex
-
Full Duplex
-
All of these
Pregunta 40
Pregunta
If one link fails, only that link is affected. All other links remain active. Which topology does this?
Respuesta
-
Mesh topology
-
Star topology
-
Bus topology
-
Physical topology
Pregunta 41
Pregunta
Which command would you place on interface connected to the Internet?
Respuesta
-
ip nat inside
-
ip nat outside
-
ip outside global
-
ip inside local
Pregunta 42
Pregunta
Which command would you place on interface on a private network?
Respuesta
-
ip nat inside
-
ip nat outside
-
ip outside global
-
ip inside local
Pregunta 43
Pregunta
What is the administrative distance of OSPF?
Respuesta
-
90
-
100
-
110
-
120
Pregunta 44
Pregunta
Which three commands can be used to check LAN connectivity problems on a router? (Select THREE )
Respuesta
-
show interfaces
-
show ip route
-
tracert
-
ping
-
dns lookups
Pregunta 45
Pregunta
You have an interface on a router with the IP address of 192.168.192.10/29. Including the router interface, how many hosts can have IP addresses on the LAN attached to the router interface?
Respuesta
-
6
-
8
-
30
-
32
Pregunta 46
Pregunta
What is the sub network number of a host with an IP address of 172.16.66.0/21?
Respuesta
-
172.16.36.0
-
172.16.48.0
-
172.16.64.0
-
172.16.0.0
Pregunta 47
Pregunta
The network address of 172.16.0.0/19 provides how many subnets and hosts?
Respuesta
-
7 subnets, 30 hosts each
-
8 subnets, 8,190 hosts each
-
8 subnets, 2,046 hosts each
-
7 subnets, 2,046 hosts each
Pregunta 48
Pregunta
On a VLSM network, which mask should you use on point-to-point WAN links in order to reduce the waste of IP addresses?
Respuesta
-
/27
-
/28
-
/29
-
/30
Pregunta 49
Pregunta
When data is encapsulated, which is the correct order?
Respuesta
-
Data, frame, packet, segment, bit
-
Segment, data, packet, frame, bit
-
Data, segment, packet, frame, bit
-
Data, segment, frame, packet, bit
Pregunta 50
Pregunta
If you use either Telnet or FTP, which is the highest layer you are using to transmit data?
Respuesta
-
Application
-
Presentation
-
Session
-
Transport
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