LPIC-1 Exam 102 v5 (Linux Administrator) — Question 30

How many IP addresses can be used for unique hosts inside the IPv4 subnet 192.168.2.128/26?

Answer options

• A. 6
• B. 14
• C. 30
• D. 62
• E. 126

Correct answer: D

Explanation

In a /26 subnet, there are 64 total IP addresses (2^(32-26)). However, 2 addresses are reserved: one for the network and one for the broadcast. This leaves 62 usable IP addresses for hosts, making D the correct answer, while the other options do not reflect the correct calculation of usable IPs.