单项选择题
Which of the following is the subnet mask for a Class C IP address?（）
A.10.0.0.1 B.192.168.1.1 C.255.255.0.0 D.255.255.255.0
单项选择题 Which of the following is the IPv6 loopback address?（）
单项选择题 Which of the following computers are used for basic applications and meets the MINIMUMrequirements for running Windows?（）
单项选择题 Which of the following components is MOST important when building a Gaming PC?（）
