What is the primary goal of a packet sniffer in network analysis?

• A. To ensure data is encrypted
• B. To assess network protocols and traffic
• C. To block attack vectors
• D. To filter through security policies

Answer: (B)

The primary goal of a packet sniffer in network analysis is to assess network protocols and traffic. Packet sniffers capture and log packets transmitted across a network, allowing administrators and security professionals to analyze the data and understand how information flows within the network. This analysis can help in monitoring network performance, troubleshooting issues, and identifying legitimate versus malicious traffic.

By examining the captured packets, users can gain insights into the types of protocols being utilized, the volume of traffic, and patterns that may indicate anomalies or inefficiencies in the network. This capability makes packet sniffers invaluable tools for analyzing network performance and identifying potential vulnerabilities that could be exploited by attackers.

The other options, while they touch on aspects of network security, do not capture the core function of a packet sniffer. Ensuring data encryption is an important aspect of security, but it is not the purpose of packet sniffing. Blocking attack vectors and filtering through security policies are actions taken to protect network integrity and security, rather than the fundamental operation of analyzing network traffic.