AT&T Technical Knowledge (TKT) II Practice Test 2025 - Free Technical Knowledge Practice Questions and Study Guide

The term "ping" refers to a utility that tests the reachability of a host on a network. It works by sending Internet Control Message Protocol (ICMP) echo request packets to the target host and waiting for an echo reply. This process allows network administrators and users to determine if a given device, such as a server or router, is accessible over the network and provides insights into the round-trip time for messages sent to the destination.

Ping is a fundamental tool for diagnosing network issues and verifying connectivity. It helps identify whether a device is online and able to respond, making it essential for troubleshooting network problems and confirming that communication between devices is functioning properly. The simplicity of the ping command and its effectiveness in providing immediate feedback on network statuses contribute to its widespread use in various networking environments.