CompTIA Network+ (N10-008) — Question 771

A technician knows the MAC address of a device and is attempting to find the device's IP address. Which of the following should the technician look at to find the
IP address? (Choose two.)

Answer options

• A. ARP table
• B. DHCP leases
• C. IP route table
• D. DNS cache
• E. MAC address table
• F. STP topology

Correct answer: A, B

Explanation

The ARP table contains mappings of IP addresses to MAC addresses, making it useful for finding the corresponding IP. DHCP leases provide a record of assigned IP addresses to MAC addresses, which is also critical for identifying the IP address in question. The other options, while related to networking, do not directly provide a mapping of MAC to IP addresses.