Question

What type of information is contained in an ARP table? Chapter 3.4.3

a) Information about available IP addresses in a network
b) A list of all active IP addresses on a network
c) Mapping of IP addresses to MAC addresses
d) A record of network traffic data

Answer 1

An ARP table contains the mapping of IP addresses to MAC addresses on a network.

Step-by-step explanation:

An ARP table contains information about the mapping of IP addresses to MAC addresses on a network. It serves as a cache that allows devices on the network to quickly and efficiently look up the MAC address corresponding to a given IP address.

For example, when a device wants to communicate with another device on the network using its IP address, it first checks the ARP table to find the associated MAC address. This information is necessary for the transmission of data over Ethernet-based networks.

The ARP table does not contain information about available or active IP addresses, nor does it store network traffic data.