PrepAway - Latest Free Exam Questions & Answers

how many usable IPs do you have left?

CORRECT TEXT
Your ISP has given you an IP block for your use. The block is 192.168.112.64/26. If your network
administrator uses the first usable IP for the router he’s installed on your network, how many
usable IPs do you have left?

PrepAway - Latest Free Exam Questions & Answers

Answer: 61

Explanation:
32 bits of IP address minus 26 bits is 6 bits.

minus 1 for address of network
minus 1 for address of broadcast
minus 1 for address of router
2^6 – 3 = 61


Leave a Reply