Q34

MCQ2 marks, −0.67

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)

$245.248.136.0/21 \text{ and } 245.248.128.0/22$

(B)

$245.248.128.0/21 \text{ and } 245.248.128.0/22$

(C)

$245.248.132.0/22 \text{ and } 245.248.132.0/21$

(D)

$245.248.136.0/24 \text{ and } 245.248.132.0/21$

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