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Recent questions tagged routing

9 votes

4 answers

31

GATE CSE 2020 | Question: 15
Consider the following statements about the functionality of an $\textsf{IP}$ based router. A router does not modify the $\textsf{IP}$ ... packet. Which of the above statements is/are TRUE? I and II only I only II and III only II only

Arjun asked in Computer Networks Feb 12, 2020

by Arjun

10.3k views

1 vote

1 answer

32

Applied Course | Mock GATE | Test 1 | Question: 31
Which of the following statement is/are correct? A Router has a physical and logical(IP) address for each of its interfaces. A router acts only on those packets in which the link-layer destination address matches the address of ... changes the link-layer address of the packet (both source and destination) when it forwards the packet. All the above

Applied Course asked in Computer Networks Jan 16, 2019

by Applied Course

712 views

3 votes

1 answer

33

Applied Course | Mock GATE | Test 1 | Question: 63
Suppose there are $4$ routers connected between two systems $S_1$ and $S_2$. $S_1$ wants to send a python file of size $8 \:KB$ to $S_2$ ... the time to transfer $1$ bit from $S_1$ to $S_2$ is $32$ sec and there is no traffic between these two systems)

Applied Course asked in Computer Networks Jan 16, 2019

by Applied Course

664 views

1 vote

3 answers

34

Link state routing
True / False ) LSR uses dijkstra algorithm ? ) LSR working is similar to dijkstra algorithm ? ) DVR uses bellman algorithm for finding the shortest distance to other routers/hops?

Gurdeep Saini asked in Computer Networks Jan 2, 2019

by Gurdeep Saini

1.6k views

1 vote

2 answers

35

GATE Overflow | Mock GATE | Test 1 | Question: 31
Let $N$ be the number of nodes and $M$ be the number of edges. For Link state routing how many message exchanges (roughly, explained as a function of the above parameters) need to be exchanged to build the topology at each and every node in the network? $\text{Min } (N+M, N*M)$ $\text{Max } (N+M, N*M)$ $N*M$ $N+M$

Ruturaj Mohanty asked in Computer Networks Dec 27, 2018

by Ruturaj Mohanty

1.9k views

0 votes

2 answers

36

Fragmentation of packet
Which of the following statements are True ?

Na462 asked in Computer Networks Dec 2, 2018

by Na462

1.5k views

1 vote

1 answer

37

Distance vector routing Algorithm
D.

Na462 asked in Computer Networks Dec 2, 2018

by Na462

2.9k views

0 votes

0 answers

38

Distance vector routing protocol
At the beginning each node knows only the distances to its immediate neighbors. In step 1, each node exchanges its routing table with all of its neighbors and all update their routing tables accordingly. In step 2, step 1 repeats. After step 2, at node A, ... minimum cost path to D? What will be the new value of the B-C link. Assume cost values are always >=1.

John Doe asked in Computer Networks Nov 24, 2018

1.4k views

1 vote

0 answers

39

distance routing algorithm
statement : distance routing algorithm is adaptive algorithm which consider the load on the network whether the given statement is true or not ?

Gurdeep Saini asked in Computer Networks Nov 9, 2018

by Gurdeep Saini

796 views

0 votes

2 answers

40

Self doubt
RIP and OSPF are which layer protocols ?

jatin khachane 1 asked in Computer Networks Oct 8, 2018

by jatin khachane 1

630 views

0 votes

1 answer

41

Self doubt
Routing Protocols RIP and OSPF are implemented At APPLICATION LAYER.(Correct me if I am wrong) But the work of routing - Creating table which decides upon optimum paths among available path. It is done at router right ? How this protocols works till Application layer

jatin khachane 1 asked in Computer Networks Oct 5, 2018

by jatin khachane 1

413 views

0 votes

0 answers

42

jatin khachane 1 asked in Computer Networks Sep 28, 2018

by jatin khachane 1

283 views

0 votes

0 answers

43

Sambhrant Maurya asked in Computer Networks Sep 23, 2018

by Sambhrant Maurya

393 views

0 votes

0 answers

44

Link State Routing
Why do we use Dijkstra algorithm in Link State Routing Protocol? I understand that it is essential to compute the shortest path to every other node, but is Dijkstra algorithm run for each system in the graph and does each node have its own Shortest Path Tree?

Parimal Paritosh asked in Computer Networks Jul 2, 2018

by Parimal Paritosh

970 views

1 vote

1 answer

45

Forwarding by router
Consider the following routing table of a router. Consider the following three IP addresses. How are the packets with above three destination IP addresses are forwarded? (A) 1->D, 2->B, 3->B (B) 1->D, 2->B, 3->D (C) 1->B, 2->D, 3->D (D) 1->D, 2->D, 3->D

bts asked in Computer Networks Jun 15, 2018

by bts

2.0k views

0 votes

1 answer

46

Routing
A router has $3$ interfaces on which $3$ IP addresses are configured. How many route entry would it have on it’s routing table. None Based on the number of networks configured $3$ directly connected networks None of the above

shraddha priya asked in Computer Networks May 30, 2018

by shraddha priya

601 views

4 votes

1 answer

47

Distance vector routing
Correct or Incorrect: The count to infinity problem may arise in a distance vector routing protocol even when the network never gets disconnected. The given answer says that this statement is incorrect. But I think the problem arises even when ... up(without the network being disconnected). As shown in this stackoverflow answer: https://stackoverflow.com/a/13523982/6430403

Rishabh Gupta 2 asked in Computer Networks Jan 5, 2018

by Rishabh Gupta 2

2.6k views

0 votes

1 answer

48

MadeEasy Test Series: Computer Networks - Routing
Which of the following is TRUE ? S1: Non adaptive algorithms do not take into account the traffic and change in topology S2: Dynamic algorithm reflect their routing and decisions to reflect change in topology S3: link state and flooding are Non adaptive algorithms S4: Shortest path routing is adaptive routing

Kalpataru Bose asked in Computer Networks Dec 26, 2017

by Kalpataru Bose

1.7k views

1 vote

2 answers

49

MadeEasy Subject Test: Computer Networks - Routing
please explain the answer thnx.

nikkey123 asked in Computer Networks Nov 19, 2017

817 views

4 votes

3 answers

50

Virtual Gate Test Series: Computer Networks - Distance Vector Routing Algorithm
Consider a router is working based on the Distance Vector Routing Algorithm. Consider the five-node network of the following figure. Assume all nodes building distance from that node to $A$ (number of hops) and after initial set up, suddenly either $A$ goes down ... $(C) B - 4, C - 5, D - 4, E - 5$ $(D)$ None

Na462 asked in Computer Networks Nov 11, 2017

by Na462

1.4k views

0 votes

0 answers

51

Routing
Consider hierarchal routing with 4800 routers, they are divided in hierarchal as clusters, regions, routers. What is the minimum size of routing for three level hierarchal? 5,48,20 3,80,20 15,16,20 5,24,40

Shivi rao asked in Computer Networks Oct 25, 2017

439 views

2 votes

1 answer

52

general conceptual question
Can split horizon alone prevent count to infinity problem or we must use poison reverse with split horizon ?

♥_Less asked in Computer Networks Oct 8, 2017

822 views

3 votes

1 answer

53

ROUTER
In S4 it is given that Router forwards the packet to higher hop on the path to destination. I just want to know what do they mean by higher hop.AFAIK router always choose the best path for the forwarding packet which i think is the shortest path.

junaid ahmad asked in Computer Networks Oct 5, 2017

by junaid ahmad

403 views

2 votes

1 answer

54

Computer Networks: Split horizon with Poisson Reverse Frouzan
As soon as I have studied I got that count to infinity problem will not occur if A advertise its window first to B before B can. As a result B gets information that X is un reachable now, and system will be in stable state. ... horizon. In the line saying: "Node B can still advertise the value for X......." till last line.

Shubhanshu asked in Computer Networks Aug 27, 2017

822 views

0 votes

1 answer

55

CN by Andrew S. Tanenbaum
what are the properties that routing protocol should satisfy?

iarnav asked in Computer Networks May 3, 2017

by iarnav

502 views

2 votes

1 answer

56

DVRP and LINK STATE

student2018 asked in Computer Networks Apr 26, 2017

1.1k views

0 votes

2 answers

57

Internetworking Routing
waht happens in internetworking routing somebody please tell please

LavTheRawkstar asked in Computer Networks Apr 9, 2017

by LavTheRawkstar

5.1k views

0 votes

1 answer

58

distance vector routing table and least cost ?

LavTheRawkstar asked in Computer Networks Apr 6, 2017

by LavTheRawkstar

828 views

37 votes

4 answers

59

GATE CSE 2017 Set 2 | Question: 09
Consider the following statements about the routing protocols. Routing Information Protocol (RIP) and Open Shortest Path First (OSPF) in an $\textsf{IPv4}$ network. RIP uses distance vector routing RIP packets are sent using UDP OSPF packets are sent using TCP OSPF operation ... are CORRECT? I and IV only I, II and III only I, II and IV only II, III and IV only

khushtak asked in Computer Networks Feb 14, 2017

12.3k views

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Recent questions tagged routing