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Which of the following tools can perform rapid dictionary attacks against multiple protocols?

  1. MegaPing

  2. John the Ripper

  3. THC Hydra

  4. nmap

The correct answer is: THC Hydra

C. THC Hydra is a powerful tool well-known for its capability to perform rapid dictionary attacks against a variety of protocols. It supports numerous authentication methods, including HTTP, FTP, SSH, Telnet, and many others, allowing users to target multiple services in a single session. THC Hydra is designed to efficiently utilize wordlists to brute force passwords, making it a favorite among ethical hackers due to its versatility and speed. The other tools mentioned have different primary functions: MegaPing is more focused on network diagnostics and pinging multiple hosts; John the Ripper is primarily a password cracker but tends to work with password hashes rather than direct protocol attacks; nmap is used for network mapping and security auditing rather than specifically for conducting dictionary attacks on protocols. Understanding the distinct functionalities of these tools clarifies why THC Hydra is the appropriate choice for executing rapid dictionary attacks across multiple protocols.