CompTIA Linux+ (XK0-004) — Question 83

A technician wants to secure a sensitive workstation by ensuring network traffic is kept within the local subnet. To accomplish this task, the technician executes the following command: echo 0 > /proc/sys/net/ipv4/ip_default_ttl
Which of the following commands can the technician use to confirm the expected results? (Choose two.)

Answer options

• A. tcpdump
• B. traceroute
• C. route
• D. iperf
• E. ip
• F. arp

Correct answer: B, C

Explanation

The correct commands are B (traceroute) and C (route). Traceroute can show the path packets take, revealing if they are restricted to the local subnet, while the route command can display the routing table, confirming local network restrictions. The other options do not provide direct insight into network path or routing table information relevant to this task.