Which Statement Is True About Cisco Ios Ping Indicators?

Which statement is true about Cisco IOS ping indicators?​

• “!” is the definition of the ping which has no success and that the device could be in the problem of finding the DNS server.
• “U” defines that in the path the router has no route to the destination and ping is also unsuccessful.
• “- “explains that ping is successful but the time of response is longer than usual time.
• The combo of “- “and “!” defines that the router has now no longer traveled at the route of the vacation spot and responds with an ICMP message that can’t be reached.

Answer: The pings of the Cisco IOS which are common are ‘!’, ‘.’ and ‘U’. The ping”!” “Indicate ping successfully check the link to Level 3. The “.” Ping shows that the issues as connectivity, routing, or the security are present at the path, and the ICMP unreachable message is not given. U ping determines that in the path, the router has not traveled to the destination and the answer provided by it is with an ICMP inattention/unreachable message.

What do you know about the ping command?

The ping command is a very effective method to test the connection. The test is also essential because it can also test the protocol stack, as the command move from layer 3 to the 2 layers and then to 1 layer of the OSI model. The protocol used by the ping for the test is ICMP.

The command will not show the nature of the issue but it is useful to find the origin of the issue which is an essential step in network failure troubleshooting. Moreover, the command helps in the IPv4 configuration on the host and also gives the way to check the protocol stack.

Cisco IOS ping indicator:

The common IOS ping indicator is listed below:

• ! – it shows the arrival of the ICMP echo reply message.
• . – it shows the expiration time white it is waiting for ICMP echo reply message.
• U – indicate the unreachable message of ICMP arrives.

“!” shows the success of the ping command and verifies the connectivity of OSI model layer 3. the “.” Might show the communication issue.it shows the connectivity issue exists in the path.it also determines the router has no destination address route and the ICMP unreachable message is not sent. When the ping was blocked by the security the period can find it. The “U” determines that the request made by the ping command was blocked.

The ping command can verify the localhost IP configuration. The loopback test happens with the ping command on the specific address which is reserved and known as loopback (127.0.0.1).it can also determine the correct working from the network to the physical layer of the protocol stack.

The ping command is typed on the command-line interface.the ping loopback command syntax is:C:> ping 127.0.0.1 and the result are shown as :

Reply from 127.0.0.1: bytes=32 time<1ms TTL=128

Reply from 127.0.0.1: bytes=32 time<1ms TTL=128

Reply from 127.0.0.1: bytes=32 time<1ms TTL=128

Reply from 127.0.0.1: bytes=32 time<1ms TTL=128

Ping statistics for 127.0.0.1:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

the approx round trip times in milli-seconds:

Minimum = 0ms, Maximum = 0ms, Average = 0ms