Which option correctly describes the arp command's purpose?

Which option correctly describes the arp command's purpose?

• A. View and modify the ARP table entries on the local computer
• B. Disable ARP spoofing in the network
• C. Display DNS resource records for a domain
• D. Create a new IP address with ARP

Answer: (A)

The arp command focuses on managing the local host’s ARP cache, which stores mappings between IP addresses and MAC addresses learned on the local network. This lets you view current address resolutions and add or remove static entries as needed, helping troubleshoot local connectivity and ensure correct IP-to-MAC mappings. It isn’t about disabling ARP spoofing across the network or enforcing security—that’s handled by other security features and network controls. It also isn’t a DNS tool for querying domain records, nor a way to create new IP addresses (IPs are assigned by network configuration or DHCP, not through ARP).

The arp command focuses on managing the local host’s ARP cache, which stores mappings between IP addresses and MAC addresses learned on the local network. This lets you view current address resolutions and add or remove static entries as needed, helping troubleshoot local connectivity and ensure correct IP-to-MAC mappings.

It isn’t about disabling ARP spoofing across the network or enforcing security—that’s handled by other security features and network controls. It also isn’t a DNS tool for querying domain records, nor a way to create new IP addresses (IPs are assigned by network configuration or DHCP, not through ARP).