Cisco CCNA mock exam questions sample test – Question 221

.Which Cisco IOS command can be issued on a router to test the connectivity of one interface from another interface on the same router?

A. ping (with no address specified)
B. ping (with an address specified)
C. tracert
D. traceroute

Correct Answer: A

The extended ping Cisco IOS utility, which is issued with no address specified, can be issued on a router to test connectivity between two remote routers. The ping utility uses Internet
Control Messaging Protocol (ICMP) packets. An ICMP echo request is sent to the destination host. Upon its receipt, the destination host responds to the sending host with an ICMP
echo reply. When the echo reply is received, the connectivity is verified. Below is sample output of the extended ping command:
The ping command with an address specified is incorrect because you when you issue this command you will either receive a reply from the destination or a destination unreachable
message. It will not prompt for additional information as shown which is what allows you to specify the endpoints for the ping.
The traceroute command is not correct for this scenario because this command traces the path between the host issuing the command and the target network.
The tracert command is not a Cisco IOS command, but a Microsoft command.
Routing Fundamentals
Configure, verify, and troubleshoot IPv4 and IPv6 static routing
Cisco > Tech Notes > Using the Extended ping and Extended traceroute Commands > Document ID: 13730 > The Extended ping Command
Cisco > Cisco IOS Command Fundamentals Reference, Release 12.4 > ping