DailyDebian on Instagram: "Correct Answer: B. tcpdump. tcpdump captures and inspects packets on the network, allowing visibility into protocol headers and application layer payloads. This makes it suitable for analyzing whether application layer traffic is actually being transmitted correctly after a firewall change, even when ports and protocols are already confirmed open. Why The Other Options Are Incorrect A. ifconfig. This tool is used to view or configure network interface settings and does