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

Explanation:
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.
Objective:
Routing Fundamentals
Sub-Objective:
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