What is a common tool used to audit network installations for security consistency?

The common tool used to audit network installations for security consistency is Wireshark. Wireshark is a powerful network protocol analyzer that allows users to capture and interactively browse the traffic running on a computer network. This tool is particularly valuable for auditing because it can analyze data packets, track network traffic patterns, and identify potential security vulnerabilities. By capturing packets, a security auditor can monitor for unexpected or unauthorized data exchanges, thereby ensuring that network configurations adhere to security policies.

In contrast, while Nmap is a network scanning tool used to discover hosts and services on a network, its primary function is not auditing for security consistency; rather, it focuses on mapping network services. Microsoft Word and LibreOffice are productivity software applications used for document creation and management, which do not pertain at all to security auditing. Their functionalities do not provide insights into network security or configurations, making them unsuitable for this purpose.