Information Technology Specialist (ITS) Cybersecurity Practice Exam

The correct command to capture a specific number of packets using tcpdump is by using the option that specifies a count of packets, which is indicated by the option that allows the user to set how many packets to capture before terminating the command. This is important for users who want to limit the amount of data they are processing or for testing purposes when they only need a certain volume of traffic. Using this option, you can effectively define how many packets to capture, which helps in analyzing network behavior in a controlled manner, ensuring that the data set is neither too large to handle nor possibly overwhelming with unnecessary information. The ability to capture a fixed number is especially useful during troubleshooting or monitoring sessions where you want to minimize resource usage and focus only on relevant traffic. The other options serve different functions: - The option that specifies ‘-n’ prevents name resolution, which can speed up the capture process but does not control the number of packets. - The option that allows you to set the snapshot length, indicated by ‘-s’, defines the number of bytes to capture from each packet instead of specifying a count. - The verbose output option ‘-v’ increases the amount of information displayed for each packet captured, which is unrelated to how many packets are captured.