XK0-005 Question #1292: Real Exam Question with Answer & Explanation

Question

A Linux administrator is checking connectivity between two servers in separate subnets: Server A: 10.1.2.20 (source) Server B: 10.2.1.10 (destination on port 8080) The administrator tried to run the command on server A and received curl 10.2.1.10:8080 the following output: curl: (7) Failed to connect to 10.2.1.10 port 8080: Connection refused. The administrator checked on server B and confirmed nothing is listening on port 8080. Which of the following commands, when run on server B, would have allowed the administrator to test the connection successfully?

Options

• Atcpdump 'tcp port 8080'
• Bss -l -p dport=8080 dst 10.2.1.10
• Cnc -l -p 8080 10.2.1.10
• Dnmap -v -p 8080 10.2.1.10