Which of the following IP addresses is reserved as the Loopback address?

A.
127.0.0.0

B.
127.0.0.1

C.
255.255.255.0

D.
255.255.255.255

Explanation:
The 127 range is reserved for loopback addresses. The common loopback address for the TCP/IP
stack is: 127.0.0.1
Incorrect Answers:
A: These are essential different forms of all ones or all zeros broadcast addresses. These are not
loopback addresses.
C: These are essential different forms of all ones or all zeros broadcast addresses. These are not
loopback addresses.
D: These are essential different forms of all ones or all zeros broadcast addresses. These are not
loopback addresses.