Refer to the exhibit. An engineer must add a subnet for a new office that will add 20 users to the network. Which IPv4 network and subnet mask combination does the engineer assign to minimize…

The correct answer is D. 10.10.225.32 255.255.255.224. Find the subnet mask To have 20 User in a subnet We have to use /27 prefix So Host count for /27 prefix is (2^5-2)=30 Subnet Mask for /27 prefix is (sum of Network bits (128+64+32)=224, so 255.255.255.224 Find the network ID As per the /27 prefix each subnet has 30 host and 32…

Submitted by jakub_pl· Mar 5, 2026

Question

Refer to the exhibit. An engineer must add a subnet for a new office that will add 20 users to the network. Which IPv4 network and subnet mask combination does the engineer assign to minimize wasting addresses?

Exhibits

Options

A10.10.225.48 255.255.255.240
B10.10.225.32 255.255.255.240
C10.10.225.48 255.255.255.224
D10.10.225.32 255.255.255.224

How the community answered

(66 responses)

A
8% (5)
B
18% (12)
C
3% (2)
D
71% (47)

Explanation

Find the subnet mask * To have 20 User in a subnet We have to use /27 prefix * So Host count for /27 prefix is (2^5-2)=30 * Subnet Mask for /27 prefix is (sum of Network bits (128+64+32)=224, so 255.255.255.224 Find the network ID * As per the /27 prefix each subnet has 30 host and 32 including network ID & Broadcast ID * so first network ID is 10.10.255.0 and the second will be 10.10.255.32

Topics

#IPv4 addressing#Subnetting#VLSM#Network planning

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