MCQOPTIONS
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| 1. |
Consider a computer network using the distance vector routing algorithm in its network layer. The partial topology of the network is as shown below.The objective is to find the shortest-cost path from the router R to routers P and Q. Assume that R does not initially know the shortest routes to P and Q. Assume that R has three neighbouring routers denoted as X, Y, and Z. During one iteration, R measures its distance to its neighbours X, Y, and Z as 3, 2, and 5, respectively. Router R gets routing vectors from its neighbours that indicate that the distance to router P from routers X, Y, and Z are 7, 6, and 5, respectively. The routing vector also indicates that the distance to router Q from routers X, Y, and Z are 4, 6, and 8, respectively. Which of the following statement(s) is/are correct with respect to the new routing table of R, after updation during this iteration ? |
| A. | The next hop router for a packet from R to P is Y. |
| B. | The distance from R to Q will be stored as 7 |
| C. | The next hop router for a packet from R to Q is Z. |
| D. | The distance from R to P will be stored as 10. |
| Answer» B. The distance from R to Q will be stored as 7 | |