Which IP address is used as the loopback address in IPv4?

Options

  • A. 192.168.1.1
  • B. 127.0.0.1
  • C. 10.0.0.1
  • D. More than one of the above
  • E. None of the above

Correct Answer (Detailed Explanation is Below)

B. 127.0.0.1

Detailed Explanation

Explanation: 127.0.0.1 is the commonly used IPv4 loopback address. It refers to the local computer itself and is used for testing network applications without sending traffic to an external network.