CompTIA Network+ (N10-007) — Question 8

A technician is allocating the IP address space needed for a new remote office. This office will contain the engineering staff with six employees and the digital marketing staff with 55 employees. The technician has decided to allocate the 192.168.1.0/24 block to the remote office. The engineering staff has been allocated the 192.168.1.64/29 subnet. Using the LEAST amount of space possible, which of the following would be the last usable IP address in the engineering subnet?

Answer options

Correct answer: C

Explanation

The 192.168.1.64/29 subnet provides 8 IP addresses, ranging from 192.168.1.64 to 192.168.1.71. The first address (192.168.1.64) is the network address, and the last address (192.168.1.71) is the broadcast address, leaving 192.168.1.65 to 192.168.1.70 as usable addresses. Therefore, the last usable IP is 192.168.1.70. Options A and B are incorrect as they are lower usable addresses, while D is the broadcast address.