1.

Which statement is false?1. PING is TCP/IP application that sends datagrams once every second in the hope of an echo response from the machine being PINGED2. If the machine is connected and running a TCP/IP protocol stack, it should respond to the PING datagram with a datagram of its own3. If PING encounters an error condition, an ICMP message is not returned4. PING display the time of the return response in milliseconds or one of several error message

Answer» Correct Answer - Option 3 : If PING encounters an error condition, an ICMP message is not returned

The correct answer is "option 3".

CONCEPT:

The ping measure Round-trip time for the messages, that are echoed back to the source, sent from source host to destination host.

Ping is used to test the reachability of any host on an Internet protocol(IP) network.

Ping works by sending Internet Control Message Protocol(ICMP) echo request packet & waits for ICMP echo reply by the target host.

When ping encounters any error, ICMP sends the error messages & some of them are:

  • Destination Host Unreachable
  • Request timed out
  • Ping request could not find a host

Hence, the statement "If PING encounters an error condition, an ICMP message is not returned" is false.



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