What is the tcpdump command in Linux used for?

Correct option is A

The tcpdump command in Linux is a widely used network packet analyzer. It captures live network traffic from a specific interface or all interfaces, providing a detailed analysis of the data. It is useful for network troubleshooting, monitoring, and security analysis. The captured packets can also be saved to a file for later analysis.
Important Key Points:
1. Network Monitoring: tcpdump helps capture and examine the data flowing through a network interface.
2. Detailed Analysis: It provides detailed information about packets, such as their headers, protocols, and source/destination addresses.
3. Supports Filters: Users can apply filters to capture specific types of traffic, like HTTP or packets from a specific IP.
Knowledge Booster:
· Disk Usage Statistics: The du command is used to display disk usage, not tcpdump.
· Monitor CPU and Memory Usage: Commands like top or htop are used for monitoring system performance metrics, not tcpdump.
· Manage User Accounts: Commands like useradd, usermod, or passwd are used for managing user accounts.
· Manage Cron Jobs: The crontab command is used to schedule and manage cron jobs, not tcpdump.