When you use the ping command to send ICMP messages across a network, what's the most common request/reply pair you'll see?
A. Echo request and Echo reply
B. ICMP hold and ICMP send
C. Echo off and Echo on
D. ICMP request and ICMP reply
Answer: A
When you use the ping command to send ICMP messages across a network, what's the most common request/reply pair you'll see?
A. Echo request and Echo reply
B. ICMP hold and ICMP send
C. Echo off and Echo on
D. ICMP request and ICMP reply
Answer: A