Which of the following IP addresses would be hosts on the same subnet given the subnet mask 255.255.255.224? (Select TWO).

The correct answer is C. 10.4.4.165 D. 10.4.4.189. The subnet mask 255.255.255.224 is a /27, which provides 32 addresses (30 usable hosts) per subnet. The subnet boundaries in the fourth octet increment by 32: 0–31, 32–63, 64–95, 96–127, 128–159, 160–191, 192–223, 224–255. Mapping each answer to its subnet: A (10.4.4.125) falls…

Security architecture

Question

Options

A10.4.4.125
B10.4.4.158
C10.4.4.165
D10.4.4.189
E10.4.4.199

How the community answered

(27 responses)

A
7% (2)
B
33% (9)
C
44% (12)
E
15% (4)

Explanation

The subnet mask 255.255.255.224 is a /27, which provides 32 addresses (30 usable hosts) per subnet. The subnet boundaries in the fourth octet increment by 32: 0–31, 32–63, 64–95, 96–127, 128–159, 160–191, 192–223, 224–255. Mapping each answer to its subnet: A (10.4.4.125) falls in 96–127, B (10.4.4.158) falls in 128–159, C (10.4.4.165) falls in 160–191, D (10.4.4.189) falls in 160–191, and E (10.4.4.199) falls in 192–223. Only C and D share the same subnet (10.4.4.160/27), making them hosts that can communicate directly without a router.

Topics

#subnetting#CIDR#IPv4 addressing#network design

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