The first step in network troubleshooting is to identify the problem. This involves understanding the symptoms of the problem, such as slow network performance, dropped packets, or connectivity issues.

A network trace is a record of network traffic that can be used to monitor network traffic, identify network problems, and troubleshoot network issues.

Ping, Traceroute, and Wireshark are all common network troubleshooting tools. Ping is used to test connectivity between two devices, Traceroute is used to trace the path of packets between two devices, and Wireshark is used to capture and analyze network traffic.

A network administrator is responsible for identifying and resolving network problems, maintaining and updating network infrastructure, and ensuring network security.

Hardware failures, software bugs, and misconfigurations are all common causes of network problems.

A network performance test is used to measure network speed and latency, identify network bottlenecks, and troubleshoot network problems.

Malware, phishing, and DDoS attacks are all common network security threats.

A network firewall is used to protect a network from unauthorized access, filter network traffic, and prevent Denial of Service attacks.

Divide and conquer, process of elimination, and trial and error are all common network troubleshooting techniques.

A network monitoring tool is used to monitor network traffic, identify network problems, and troubleshoot network issues.

Throughput, latency, and packet loss are all common network performance metrics.

A network protocol analyzer is used to capture and analyze network traffic, identify network problems, and troubleshoot network issues.

Excessive traffic, insufficient bandwidth, and misconfigured network devices are all common causes of network congestion.

A network load balancer is used to distribute network traffic across multiple servers, improve network performance, and prevent network congestion.

Network scanner, packet sniffer, and port scanner are all common network troubleshooting tools.