N10-009 Exam Dumps | A network administrator needs to deploy a subnet using an IP address range that can support at least

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CompTIA.N10-009.v2025-11-21.q147
Question 55

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Question 55/147

A network administrator needs to deploy a subnet using an IP address range that can support at least 260 devices with the fewest wasted addresses. Which of the following subnets should the administrator use?

A. 172.16.0.0/24

B. 172.25.2.0/23

C. 172.30.1.0/22

D. 172.33.0.0/21

Correct Answer: B

To support at least 260 hosts, you need at least 512 total IP addresses (accounting for network/broadcast overhead).
/23 (255.255.254.0) gives 510 usable IPs, ideal for 260 devices with minimal waste.
/24 (255.255.255.0) gives only 254 usable - not enough.
/22 (1022 usable) and /21 (2046 usable) would work but result in significant address waste.
# Reference:
CompTIA Network+ N10-009 Official Objectives: 2.1 - Given a scenario, configure and apply IP addressing schemes.

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