Question 1.
What is the default administrative distance for RIP?
| a) |
90 |
| b) |
100 |
| c) |
110 |
| d) |
120 |
| e) |
200 |
Answer
Question 2.
Which of the following commands must be issued to make use of the all-ones and all-zeroes subnets on a Cisco router with IOS version 12.0?
| a) |
ip subnet-zero |
| b) |
ip subnet zero |
| c) |
no ip subnet-zero |
| d) |
no ip subnet zero |
| e) |
There is no configuration required -- IOS version 12.0 and later enables this automatically. |
Answer
Question 3.
Which of the following Time to Live (TTL) values would cause an IP packet to be discarded by a router?
| a) |
16 |
| b) |
15 |
| c) |
1 |
| d) |
0 |
| e) |
255 |
Answer
Answers
Question 1.
What is the default administrative distance for RIP?
| a) |
90 |
| b) |
100 |
| c) |
110 |
| d) |
120 |
| e) |
200 |
Answer
Explanation
On Cisco devices, the default administrative distance for RIP routes is 120. EIGRP has a default administrative distance of 90, IGRP 100, OSPF 110, and iBGP 200. Recall that the lower administrative distance is the most preferred. Note that the AD for RIPv1 and RIPv2 is identical.
[4977]
Question 2.
Which of the following commands must be issued to make use of the all-ones and all-zeroes subnets on a Cisco router with IOS version 12.0?
| a) |
ip subnet-zero |
| b) |
ip subnet zero |
| c) |
no ip subnet-zero |
| d) |
no ip subnet zero |
| e) |
There is no configuration required -- IOS version 12.0 and later enables this automatically. |
Answer
| e) |
There is no configuration required -- IOS version 12.0 and later enables this automatically. |
Explanation
Since IOS version 12.0, the global configuration command ip subnet-zero is enabled by default. Prior to IOS version 12.0, ip subnet-zero was required to achieve this. To disable the use of all-zeroes and all-ones subnets, use the command no ip subnet-zero.
[5002]
Question 3.
Which of the following Time to Live (TTL) values would cause an IP packet to be discarded by a router?
| a) |
16 |
| b) |
15 |
| c) |
1 |
| d) |
0 |
| e) |
255 |
Answer
Explanation
When a router receives an IP packet it automatically decrements the value by 1. When the TTL reaches 0, the router will discard the packet.
[4991]
[NA-IPRo-SQ2-F03]
[2002-11-18-01]
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