Gate CS-2012 Question Paper With Solutions

Q. 34 An Internet Service Provider (ISP) has the following chunk of CIDR-based IP
addresses available with it: 245.248.128.0/20. The ISP wants to give half of this
chunk of addresses to Organization A, and a quarter to Organization B, while
retaining the remaining with itself. Which of the following is a valid allocation of
addresses to A and B?

(A) 245.248.136.0/21 and 245.248.128.0/22

(B) 245.248.128.0/21 and 245.248.128.0/22

(C) 245.248.132.0/22 and 245.248.132.0/21

(D) 245.248.136.0/24 and 245.248.132.0/21

Answer: (A)

Explanation:

Gate CS-2012 Question Paper With Solutions

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