单项选择题
A.802.11n B.802.11b C.802.11a D.802.11g
In an enterprise setting, access switches providing net...
单项选择题In an enterprise setting, access switches providing network connectivity placed throughout abuilding are typically connected to a backbone called the:（）
A. MDF B. Proxy C. Demarcation point D. Smart jack
Which of the following connector types is used for coax...
单项选择题Which of the following connector types is used for coax cable?（）
A.BNC B.ST C.LC D.SC
An administrator needs to diagnose problems with a WINS...
单项选择题An administrator needs to diagnose problems with a WINS server. Which of the following toolsshould be used?（）
A.nslookup B. nbtstat C. dig D. netstat
