Which of the following commands would you issue on a UNIX host to send five ICMP echo messages to a device with an IP address of 10.1.1.1?

A. ping -t 5 10.1.1.1
B. ping -c 5 10.1.1.1
C. ping 10.1.1.1 (no option required, 5 is the default number of pings.)
D. ping 10.1.1.1 -t 5

Answer :

Final answer:

To send five ICMP echo messages to a device with an IP address of 10.1.1.1 on a UNIX host, the correct command is 'ping -c 5 10.1.1.1'.

Explanation:

The correct command to send five ICMP echo messages to a device with an IP address of 10.1.1.1 on a UNIX host is Option B: ping -c 5 10.1.1.1. This command uses the '-c' option to specify the number of echo requests to send, in this case, five. The IP address of the device is provided as an argument after the command.

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