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Question 826 - N10-008 discussion

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A network technician is working to deploy a new subnet to support 500 hosts. The technician needs to limit the number of unused IP addresses. Which of the following subnets should the technician choose?

A.
255.255.224.0
Answers
A.
255.255.224.0
B.
255.255.248.0
Answers
B.
255.255.248.0
C.
255.255.252.0
Answers
C.
255.255.252.0
D.
255.255.254.0
Answers
D.
255.255.254.0
Suggested answer: D

Explanation:

A/23subnet mask has23bits set to1(255.255.254.0).

The formula to calculate the number of usable host addresses in a subnet is2^(32 - subnet bits) - 2.

For a/23subnet:

32 - 23 = 9bits are available for host addresses.

2^9 - 2 = 510usable host addresses.

Professor Messer's Network+ Study Guide

CompTIA Network+ N10-008 Study Guide

asked 02/10/2024
Nicholas Johnson
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