单项选择题
Which of the following wiring standards would MOST likely be used to interconnect two devices without the use of a hub or switch?（）
A.568A
B.568B
C.Crossover
D.Loopback
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单项选择题
After a baseline check was completed it was noted that the network was working far below the level of the last baseline. Which of the following should the technician do NEXT to determine where the network problems are occurring?（）
A. Upgrade the firmware on all routers and switches
B. Reboot the entire network one device at a time
C. Conduct a network traffic analysis
D. Rerun the baseline to ensure the results were correct -
单项选择题
Which of the following uses a ring topology?（）
A.DSL
B.Ethernet
C.DOCSIS
D.SONET -
单项选择题
A user is unable to access the company website on a laptop. A network technician verifies that theuser can access other Internet pages. According to network troubleshooting methodology, which of the following steps should be taken NEXT?（）
A. Remotely connect to the user's laptop and review the network configuration settings
B. Ping the web server from inside the network to ensure it is still up and running.
C. Check to make sure the company's website is accessible from the Internet.
D. Ensure the Ethernet cable is securely plugged into the user's laptop
