Which of the following is true about tcpdump?

Which of the following is true about tcpdump?
A . The tcpdump can only capture TCP packets and not UDP packets
B . A tcpdump session can be initiated from the SmartConsole
C . The tcpdump has to be run from clish mode in Gaia
D . Running tcpdump without the correct switches will negatively impact the performance of the Firewall

View Answer

Answer: D

Explanation:

Running tcpdump without appropriate filtering or with verbose options can lead to excessive CPU usage and impact the performance of the firewall. It is essential to use specific switches and filters to limit the scope of the capture to necessary traffic only, thereby minimizing the performance overhead. Contrary to Option A, tcpdump can capture various types of packets, including TCP and UDP. Option B is incorrect as tcpdump is run from the command line, not initiated directly from SmartConsole. Option C is partially true but not as directly relevant as the impact on performance.