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GATE CS 2021 : Computer Network quiz 5

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Question 1

We have used distance vector routing algorithm for the following graph. Routing tables for Q, S, U are shown below. They came to router R. Delays measured from router R to Q, S, U are 6, 4,8.
Q: (3, 0, 3, 5, 10, 5)W
S: (10, 9, 3, 0, 12, 5)
U: (5, 6, 4, 3, 7,0)
Find the distance vector for router R

Question 2

What is routing table of E following network which uses Distance Vector Routing Algorithms (DVR) algorithm After one iteration.

Question 3

Consider the following statement.
(1) Path vector protocol is implemented using Border Gateway Protocol (BGP).
(2) Link state routing algorithm is implemented using Open shortest path first. (OSPF).
(3) Path vector protocol is same as Distance vector protocol.
(4) Routing algorithm is used to build the routing table at router.
Which of the following is false?

Question 4

OSPF protocol is practical implementation of ____ protocol and uses ___ .

Question 5

Consider a network having 6 nodes A, B, C, D E and F. The measured delay between A to B , A to D and A to C are 4, 5 and 6 respectively. Which of the following is routing table A using distance vector routing? The vector tables of B, D, C are given as follows
A B C D E F
Vector table of B = (2 0 4 4 3 2)
Vector table of C = (5 4 0 2 7 4)
Vector table of D = (5 1 3 0 3 6)

Question 6

Which one of the following is TRUE about the interior gateway routing protocols – Routing Information Protocol (RIP) and Open Shortest Path First (OSPF)?

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GATE & PSU CS Computer Networks

Jan 12GATE & PSU CS