单项选择题

Which of the following tools allows an administrator to determine the MAC address of another computer?（）

A.ping
B.arp
C.ifconfig
D.ipconfig

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单项选择题

After 100 meters (328 feet), CAT6 cabling is known to experience which of the following symptoms?（）

A. Signal loss
B. Signal bleed
C. Data collision
D. Crosstalk

单项选择题

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

单项选择题

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