A new company has been given one public IP address. The company employs 200 users requiring Internet access from the headquarters.
Which of the following can be implemented to provide Internet access for all the employees?（）

单项选择题An administrator is unable to ping a workstation. Which of the following tools would BEST help toresolve the issue?（）

A. Cable tester
B. Multimeter
C. Toner probe
D. Protocol analyzer

多项选择题Which of the following features would BEST be used to optimize real-time voice and video chat?（）(Select TWO)

A. Load balancing
B. Caching engines
C. Qos
D. Fault tolerance systems
E. Traffic shaping

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)

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

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