A network administrator is testing network connectivity by issuing the ping command on a router. Which symbol will be displayed to indicate that a time expired during the wait for an ICMP echo reply message?

A network administrator is testing network connectivity by issuing the ping command on a router. Which symbol will be displayed to indicate that a time expired during the wait for an ICMP echo reply message?

• U
• .
• !
• $

Explanation: When the ping command is issued on a router, the most common indicators are as follows:
! - indicates receipt of an ICMP echo reply message
. - indicates a time expired while waiting for an ICMP echo reply message
U - an ICMP message of unreachability was received

Exam with this question: Modules 5 - 10: Network Fundamentals Group Exam
Exam with this question: 13.3.4 Module Quiz – ICMP Answers