【简答题】According the original classes of IPv4 addresses (classful IP addressing), Choose the letters to fill in the blanks: (1) Which of the following address is the host computer address of the class A user...
【简答题】John wants to book a flight to ________ for himself. 2. There are three classes on the plan, the first class, the ____ class, and the economy class. 3. John takes the __________ class. 4. The fare of ...