CCNA Routing and Switching (legacy) — Question 33

The network administrator needs to address seven LANs. RIP version 1 is the only routing protocol in use on the network and subnet 0 is not being used. What is the maximum number of usable IP addresses that can be supported on each LAN if the organization is using one class C address block?

Answer options

• A. 8
• B. 6
• C. 30
• D. 32
• E. 14
• F. 16

Correct answer: C

Explanation

The correct answer is C, as a Class C address block provides 256 total addresses, but two addresses are reserved (network and broadcast), leaving 254 usable addresses. Divided among seven LANs, each LAN can support a maximum of 30 usable IP addresses. The other options do not account for the correct distribution and reservation of addresses.