单项选择题
Which of the following would help a new administrator quickly determine if a network had a VLANfor its publicly accessible servers?（）
A. Baselines
B. Regulations
C. Logical network diagrams
D. Wiring schematics
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Which of the following network devices should be installed at a data center to intelligently distribute client connections to a pool of servers?（）
A. A proxy server
B. A load balancer
C. A layer two switch
D. A multilayer switch -
单项选择题
Which of the following attacks occurs when a hijacker intercepts traffic, modifies it, then sends thetraffic?（）
A.DoS
B.Smurf
C.Man-in-the-middle
D.Phishing -
单项选择题
Which of the following is the BEST network device to allow multiple network connections to beterminated in one spot?（）
A. A patch panel
B. A 66 block
C. A smart jack
D. A cross connect
