Valid Option for Ping Command

B

The ping command is a network troubleshooting utility used to test the reachability of a network host or device. The command works by sending an Internet Control Message Protocol (ICMP) echo request packet to the target host and waiting for an ICMP echo reply packet.

Out of the four options provided, "packet size" is a valid option when using the ping command. The size of the packet can be specified with the "-s" option followed by the packet size in bytes. This option allows you to test the behavior of the network under different packet sizes, which can be useful in identifying network performance issues or determining the maximum transmission unit (MTU) size of the network.

The other options are not valid when using the ping command in its standard form:

• "Packet loss" is not an option that can be specified with the ping command. However, the output of the ping command does provide information about packet loss in terms of the percentage of packets that were sent but did not receive a response from the target host.
• "CRC" is not an option that can be specified with the ping command. CRC (Cyclic Redundancy Check) is a method used to detect errors in data transmission, but it is not directly related to the ping command.
• "TCP port" is not an option that can be specified with the ping command. The ping command uses ICMP packets, which do not have a port number like TCP packets do.