单项选择题

Which of the following tools can be used to securely connect to a remote system?（）

A.RCMD
B.SSH
C.TELNET
D.HTTP

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单项选择题

During system startup, many applications are starting that are not needed. Which of the following can be used to evaluate all startup applications?（）

A. Computer Management Utility
B. Add/Remove Programs
C. Autoexec.bat file
D. MSCONFIG

单项选择题

When attempting to boot a PC, the POST process completes without error. The PC then displays,‘non system disk or disk error’. Which of the following would MOST likely cause the issue?（）

A. Out-of-date BIOS
B. Invalid motherboard jumper settings
C. Failing power supply
D. Floppy disk in the drive

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