單項(xiàng)選擇題

Which of the following protocols uses port 443 by default?（）

A.LDAP
B.SNMP
C.HTTPS
D.HTTP

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單項(xiàng)選擇題

A user has discovered that even though they are using the latest version of the anti-virus software,the computer is still being infected by a virus. Which of the following is the BEST solution for this problem?（）

A. Replace the computer.
B. Run chkdsk /f.
C. Update the virus signatures.
D. Run scandisk.

多項(xiàng)選擇題

Operating system files for Windows Vista and Windows XP are located in which of the following?（）(Select TWO).

A. C:\documents and settings\administrator
B. C:\windows\system
C. C:\users\system 32
D. C:\winnt
E. C:\windows