2:An autonomous system A provides Internet service to 4 organizations B, C, D, and E.   Organizations B, C, D, and E do not announce their own prefixes to the rest of the Internet. Instead, they reach the rest of the Internet solely through AS A.   The IP prefixes allocated to B, C, D, and E by A are as follows.   B: 145.9.32.0/22 C: 145.9.44.0/22 D: 145.9.40.0/22 E: 145.9.36.0/22   Among the options below, what is the largest IP prefix that AS A can legitimately announce to the rest of the Internet with BGP path attribute "A"?   You may find the following integer to binary conversion table useful.   32 00100000 36 00100100 40 00101000 44 00101100   A:145.9.32.0/22 B:145.9.32.0/20 C:145.9.0.0/18 D:145.9.32.0/24

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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2:An autonomous system A provides Internet service to 4 organizations B, C, D, and E.

 

Organizations B, C, D, and E do not announce their own prefixes to the rest of the Internet. Instead, they reach the rest of the Internet solely through AS A.

 

The IP prefixes allocated to B, C, D, and E by A are as follows.

 

B: 145.9.32.0/22

C: 145.9.44.0/22

D: 145.9.40.0/22

E: 145.9.36.0/22

 

Among the options below, what is the largest IP prefix that AS A can legitimately announce to the rest of the Internet with BGP path attribute "A"?

 

You may find the following integer to binary conversion table useful.

 

32 00100000

36 00100100

40 00101000

44 00101100

 

A:145.9.32.0/22

B:145.9.32.0/20


C:145.9.0.0/18

D:145.9.32.0/24

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