单项选择题
A.Serial B.Parallel C.FireWire D.USB
A technician recently installed a new firewall. Which o...
单项选择题A technician recently installed a new firewall. Which of the following ports must be open to permit HTTPS traffic?（）
A.21 B.23 C.80 D.443
Which of the following locations would hold a user’s do...
单项选择题Which of the following locations would hold a user’s documents and data in Windows XP?（）
A. C:\Program Files\Users\%username& B. C:\Documents and Settings\%username% C. C:\Users\%username% D. C:\Users\Documents and Settings\%username%
Which of the following commands would MOST likely be us...
单项选择题Which of the following commands would MOST likely be used to see where a loss of connectivity between two devices on a network is located?（）
A.tracert B.netstat C.nslookup D.ping
