多项选择题
A. Load balancing B. Caching engines C. Qos D. Fault tolerance systems E. Traffic shaping
1000BaseT has a MAXIMUM run distance of:（）A. 25 meters ...
单项选择题1000BaseT has a MAXIMUM run distance of:（）
A. 25 meters (82 feet) B. 100 meters (328 feet) C. 500 meters (1640 feet) D. 1000 meters (3280 feet)
Which of the following features is essential in a firew...
单项选择题Which of the following features is essential in a firewall if it is to support RTP sessions?（）
A. Remote console B. Statefulness C. Address translation D. Zones
A layer 3 switch can move packets between subnets based...
单项选择题A layer 3 switch can move packets between subnets based on which of the following criteria?（）
A. 802.1q tag B. Port C. Application D. IP address
