Homework Answers
Option c (asynchronous update to adjacent hosts)
In DIstance vector Algorithm each node periodically sends its own distance vector estimate to neighbors nodes. So when the change is happend then change is send to adjacent node.
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How do distance vector algorithms advertise routing changes? A link state broadcasts to all hosts B...
Briefly contrast the cost metrics between distance vector routing algorithms and link state routing algorithms for...
Briefly contrast the cost metrics between distance vector routing algorithms and link state routing algorithms for building routing tables, and briefly compare two major routing protocols that use them.
Briefly contrast the cost metrics between distance vector routing algorithms and link state routing algorithms for...
Briefly contrast the cost metrics between distance vector routing algorithms and link state routing algorithms for building routing tables, and briefly compare two major routing protocols that use them.
1. (2pt) Compare and contrast link-state and distance-vector routing algorithms.
1. (2pt) Compare and contrast link-state and distance-vector routing algorithms.
____________ is a distance Vector protocol, while __________ is a Link State Protocol. RIP v1, RIP...
____________ is a distance Vector protocol, while __________ is a Link State Protocol. RIP v1, RIP v2 RIP v2, IS-IS IS-IS, OSPF RIP, OSPF While RIP and OSPF are created for Intra-AS routing, ____________ is the usual protocol for inter-as routing Wide area OSPF RIP v3 BGP v4 Hybrid Routing v2 The key to avoiding a broadcast storm is for a node to judiciously choose when to flood a packet and (e.g., if it has already received and flooded an...
Figure 1: Network for Problem 4 and 5 4. [10 pointsj: Link-state routing: (a) Explain how...
Figure 1: Network for Problem 4 and 5 4. [10 pointsj: Link-state routing: (a) Explain how link-state routing works. Give an example of an Internet routing protocol based on link-state routing. b) Apply Dijkstra's algorithm to obtain the routing table for node a in the network given in Figure 1 5. [10 points Apply distance-vector routing to the subnetwork of the network shown in Figure 1 con sisting of only nodes fa, b, c, d (a) Write the initial distance-vector...
1. In Broadcast routing a message is sent from a host to a specific group of...
1. In Broadcast routing a message is sent from a host to a specific group of computers, whereas in Multicast routing a message is sent from a host to all computers in the network a. True b. False Answer: 2. Link State Routing is different from Distance Vector Routing. In Link State Routing each node has information about the entire topology of the domain, and can use the Djikstra algorithm to build a routing table a. True b. False Answer:...
1.0. Suppose the network is as follows, where distance-vector routing update is used. Each link has...
1.0. Suppose the network is as follows, where distance-vector
routing update is used. Each link has cost 1, and each router has
entries in its forwarding table only for its immediate neighbors
(so A’s table contains 〈B,B,1〉, 〈D,D,1〉 and B’s table contains
〈A,A,1〉, 〈C,C,1〉).
(a). Suppose each node creates a report from its initial
configuration and sends that to each of its neighbors. What will
each node’s forwarding table be after this set of exchanges? The
exchanges, in other words,...
Q1 Error detection/correction Can these schemes correct bit errors: Internet checksums, two-dimendional parity, cyclic...
Q1 Error detection/correction Can these schemes correct bit errors: Internet checksums, two-dimendional parity, cyclic redundancy check (CRC) A. Yes, No, No B. No, Yes, Yes c. No, Yes, No D. No, No, Yes E. Ho, hum, ha Q2 CRC vs Internet checksums Which of these is not true? A. CRC's are commonly used at the link layer B. CRC's can detect any bit error of up to r bits with an r-bit EDC. c. CRC's are more resilient to bursty...
PART A 21 MARKS SHORT ANSWER QUESTIONS Answer ALL questions from this part. Write your answers...
PART A 21 MARKS
SHORT ANSWER QUESTIONS Answer ALL questions from this part. Write
your answers in the Examination Answer Booklet. Each question is
worth 1.5 marks (14 x 1.5 = 21 marks).
Question 1
An organisation has been granted a block of addresses with the mask
/22. If the organisation creates 8 equal-sized subnets, how many
addresses (including the special addresses) are available in each
subnet? Show your calculations.
Question 2
Give an example of a valid classful address...
1. (2pt) Compare and contrast link-state and distance-vector routing algorithms.
Figure 1: Network for Problem 4 and 5 4. [10 pointsj: Link-state routing: (a) Explain how link-state routing works. Give an example of an Internet routing protocol based on link-state routing. b) Apply Dijkstra's algorithm to obtain the routing table for node a in the network given in Figure 1 5. [10 points Apply distance-vector routing to the subnetwork of the network shown in Figure 1 con sisting of only nodes fa, b, c, d (a) Write the initial distance-vector...
1. In Broadcast routing a message is sent from a host to a specific group of computers, whereas in Multicast routing a message is sent from a host to all computers in the network a. True b. False Answer: 2. Link State Routing is different from Distance Vector Routing. In Link State Routing each node has information about the entire topology of the domain, and can use the Djikstra algorithm to build a routing table a. True b. False Answer:...
1.0. Suppose the network is as follows, where distance-vector
routing update is used. Each link has cost 1, and each router has
entries in its forwarding table only for its immediate neighbors
(so A’s table contains 〈B,B,1〉, 〈D,D,1〉 and B’s table contains
〈A,A,1〉, 〈C,C,1〉).
(a). Suppose each node creates a report from its initial
configuration and sends that to each of its neighbors. What will
each node’s forwarding table be after this set of exchanges? The
exchanges, in other words,...
Q1 Error detection/correction Can these schemes correct bit errors: Internet checksums, two-dimendional parity, cyclic redundancy check (CRC) A. Yes, No, No B. No, Yes, Yes c. No, Yes, No D. No, No, Yes E. Ho, hum, ha Q2 CRC vs Internet checksums Which of these is not true? A. CRC's are commonly used at the link layer B. CRC's can detect any bit error of up to r bits with an r-bit EDC. c. CRC's are more resilient to bursty...
PART A 21 MARKS
SHORT ANSWER QUESTIONS Answer ALL questions from this part. Write
your answers in the Examination Answer Booklet. Each question is
worth 1.5 marks (14 x 1.5 = 21 marks).
Question 1
An organisation has been granted a block of addresses with the mask
/22. If the organisation creates 8 equal-sized subnets, how many
addresses (including the special addresses) are available in each
subnet? Show your calculations.
Question 2
Give an example of a valid classful address...
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