單項(xiàng)選擇題

Kerberos is a form of user authentication that:（）

A. Provides users access to network resources.
B. Performs router commands after user authentication.
C. Provides users with remote access only capabilities.
D. Does not require an authentication server

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單項(xiàng)選擇題

Users are reporting that they are still experiencing network issues even though a fix was recentlyapplied. Which of the following troubleshooting methodology steps is the administrator using?（）

A. Escalating the problem
B. Testing the solution and identifying the effects
C. Continuing to gather information about the same symptoms
D. Documenting the solution and the entire process

單項(xiàng)選擇題

Which of the following has the HIGHEST data rate speed?（）

A.T1
B.ADSL
C.SDSL
D.OC-3