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Recent questions tagged routing

1 vote
3 answers
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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?
asked Jan 2, 2019 in Computer Networks Gurdeep Saini 258 views
0 votes
1 answer
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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? $\text{Min } (N+M, N*M)$ $\text{Max } (N+M, N*M)$ $N*M$ $N+M$
asked Dec 27, 2018 in Computer Networks Ruturaj Mohanty 349 views
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2 answers
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i understand that distance vector routing is adaptive but what about link state routing is it adaptive??
asked Nov 26, 2018 in Computer Networks CHïntän ÞäTël 66 views
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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, what are the costs ... of a new minimum cost path to D? What will be the new value of the B-C link. Assume cost values are always >=1.
asked Nov 24, 2018 in Computer Networks John Doe 307 views
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0 answers
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statement : distance routing algorithm is adaptive algorithm which consider the load on the network whether the given statement is true or not ?
asked Nov 9, 2018 in Computer Networks Gurdeep Saini 204 views
0 votes
1 answer
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RIP and OSPF are which layer protocols ?
asked Oct 8, 2018 in Computer Networks jatin khachane 1 94 views
0 votes
1 answer
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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
asked Oct 5, 2018 in Computer Networks jatin khachane 1 69 views
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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?
asked Jul 3, 2018 in Computer Networks Parimal Paritosh 241 views
1 vote
1 answer
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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
asked Jun 15, 2018 in Computer Networks bts 533 views
0 votes
1 answer
15
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
asked May 30, 2018 in Computer Networks shraddha priya 140 views
1 vote
1 answer
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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 the weight of link goes up(without the network being disconnected). As shown in this stackoverflow answer: https://stackoverflow.com/a/13523982/6430403
asked Jan 5, 2018 in Computer Networks Rishabh Gupta 2 741 views
0 votes
1 answer
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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
asked Dec 26, 2017 in Computer Networks Kalpataru Bose 373 views
2 votes
2 answers
20
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 or the link between $A$ and $B$ is cut. What are the distance ... $(C) B - 4, C - 5, D - 4, E - 5$ $(D)$ None
asked Nov 12, 2017 in Computer Networks Na462 394 views
0 votes
1 answer
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74.Which of the following routing technique/ techniques is /are used in distributed systems? (a)Fixed Routing (b) Virtual Routing (c)Dynamic Routing Code: (a) only (a) and (b) only (c)only All (a),(b),(c)
asked Nov 6, 2017 in CBSE/UGC NET mahalakshmi r 1.7k views
0 votes
0 answers
22
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
asked Oct 25, 2017 in Computer Networks Shivi rao 170 views
2 votes
1 answer
23
Can split horizon alone prevent count to infinity problem or we must use poison reverse with split horizon ?
asked Oct 8, 2017 in Computer Networks ♥_Less 198 views
3 votes
1 answer
24
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.
asked Oct 5, 2017 in Computer Networks junaid ahmad 149 views
2 votes
1 answer
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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. Screen shot of above theory:- Now I also ... in understanding what is split horizon. In the line saying: "Node B can still advertise the value for X......." till last line.
asked Aug 27, 2017 in Computer Networks Shubhanshu 396 views
0 votes
1 answer
26
what are the properties that routing protocol should satisfy?
asked May 3, 2017 in Computer Networks iarnav 235 views
2 votes
1 answer
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0 votes
2 answers
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waht happens in internetworking routing somebody please tell please
asked Apr 9, 2017 in Computer Networks LavTheRawkstar 2.7k views
27 votes
5 answers
30
Consider the following statements about the routing protocols. Routing Information Protocol (RIP) and Open Shortest Path First (OSPF) in an IPv4 network. RIP uses distance vector routing RIP packets are sent using UDP OSPF packets are sent using TCP OSPF operation is based on link-state routing ... above statements are CORRECT? I and IV only I, II and III only I, II and IV only II, III and IV only
asked Feb 14, 2017 in Computer Networks khushtak 5.3k views
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