Which of the following is a tool used for sniffing network traffic? Metasploit Wireshark John the Ripper Nessus

Wireshark is a tool used for sniffing network traffic.

Here's a brief explanation of each tool:

1. Metasploit: This is a penetration testing tool that is used to find security vulnerabilities in systems. It is not specifically designed for sniffing network traffic.

2. Wireshark: This is a network protocol analyzer, often known as a "sniffer". It captures and interprets network traffic, making it the tool that fits your question.

3. John the Ripper: This is a password cracking tool, not a network sniffer.

4. Nessus: This is a vulnerability scanner, used to identify vulnerabilities in networked systems. It is not a network sniffer.