6.Every computer on the Internet has a unique numeric address called a(n):a. IP address

The correct answer is a. IP address.

Explanation:

An IP address (Internet Protocol address) is a unique string of numbers separated by periods or colons that identifies each computer using the Internet Protocol to communicate over a network. There are two types of IP addresses: IPv4, which consists of four sets of numbers (e.g., 192.168.1.1), and IPv6, which is a longer alphanumeric format designed to accommodate the growing number of devices connected to the Internet. Each device needs its own IP address to ensure data is sent and received correctly across the network.