An Internet computer is identified by its IP address, but it is difficult to remember.
A. 对
B. 错
You can “call”www.sina.com.cninstead of 202.112.8.2.
A. 对
B. 错
The label of the DNS address are case insensitive.
A. 对
B. 错
The final component of an address was intended to indicate the type of organization hosting the computer.
A. 对
B. 错