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Computer Networks CT-4

Total questions: 20

Worksheet time: 40mins

Name
Class
Date
1.

What is the other name for distance vector routing algorithm?

a)

Ford and Fullman algorithm

b)

Bellman – Ford algorithm

c)

Ford and Fulkerson algorithm

d)

Bellman – Fulkerson algorithm

2.

What is the default distance between two nodes in the initial routing table, if these two nodes are not immediate neighbors in distance vector routing?

a)

Infinite distance that is unreachable

b)

Maximum distance in the routing table of the node

c)

Minimum distance in the routing table of the node

d)

Total sum of the distances in the routing table

3.

A _________ is a device that forwards data that is not explicitly destined to it.

a)

hub

b)

switch

c)

router

d)

All of the above

4.

An __________ distributes routing information between two different autonomous systems or organization.

a)

Exterior Routing Protocol

b)

Interior Routing Protocol

c)

Link-State Routing Protocol

d)

Distance Vector Routing Protocol

5.

 ________ is an upgraded implementation of ICMP to accommodate IPv6 requirements.

a)

DHCPv6

b)

DNS

c)

ICMPv6

d)

None of the above

6.

Which routing does not permit the router to send its routing table to its neighboring nodes?

a)

Link state routing

b)

Unicast distance vector routing

c)

Multicast distance vector routing

d)

Multiple routing

7.

Which one of the following is not a function of network layer?

a)

routing

b)

inter-networking

c)

congestion control

d)

error control

8.

In virtual circuit network each packet contains ___________.

a)

a short VC number

b)

full source and destination address

c)

only source address

d)

only destination address

9.

Which of the following routing algorithms can be used for network layer design?

a)

distance vector routing

b)

shortest path algorithm

c)

link state routing

d)

all of the mentioned

10.

ICMP is primarily used for __________

a)

error and diagnostic functions

b)

addressing

c)

forwarding

d)

routing

11.

What is the length of the IPv4 address?

a)

8 bits

b)

16 bits

c)

32 bits

d)

128 bits

12.


Which of the following is used to allocate and manage resources for a network?

a)

Server

b)

Bluetooth

c)

Node

d)

None of the above

13.

In which method policies are used to prevent congestion before it happens?

a)

Open loop congestion control

b)

Closed loop congestion control

c)

Neither (A) nor (B)

d)

Both option A & B

14.

A......................... is a packet sent by a node to the source to inform it of congestion.

a)

Backpressure

b)

Choke packet

c)

Implicit signaling

d)

Explicit signaling

15.

Congestion control 

a)

Allow more traffic in network

b)

try to avoid error

c)

try to avoid traffic congestion

d)

All of the above

16.

The technique of ________refers to a congestion control mechanism in which a congested node stops receiving data from the immediate upstream node or nodes.

a)

choke packet

b)

backpressure

c)

implicit signaling

d)

explicit signaling

17.

In the _________ algorithm of TCP, the size of the congestion window increases additively until congestion is detected.

a)

slow-start

b)

congestion avoidance

c)

congestion detection

d)

none of the above

18.

In the ______ bucket algorithm, bursty chunks are stored in the bucket and sent out at an average rate.

a)

leaky

b)

token

c)

either (a) or (b)

d)

neither (a) nor (b)

19.

DHCP is used for ________

a)

IPv6

b)

IPv4

c)

Both IPv6 and IPv4

d)

None of the mentioned

20.

DHCP client and servers on the same subnet communicate via _________

a)

UDP broadcast

b)

UDP unicast

c)

TCP broadcast

d)

TCP unicast