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单选题
An administrator receives a call from an end user reporting that the application they are using keeps giving them an error on port 23. Which of the following is being used？（）
A
SSH
B
Remote Desktop Connection
C
Telnet
D
VPN
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/tmpB
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As the root user from serverA run the command rhost serverBB
As the root user from serverA run the command rlogin serverBC
As the desired user from serverB run the command rhost serverAD
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AB
BC
CD
D
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Document the solution.
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Configure File signature verification to block driver installation， and set driver signing as a system default.B
Remove all users from the Power User group.C
Create a Local Computer Policy to prevent users from installing drivers.D
Create a Local Computer Policy to enable Windows File Protection.
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ensure that it receives detailed network diagramsB
reduce the risk of downtime due to facilities-related problemsC
ensure end-user support immediately after the launch of a new systemD
confirm project roles and responsibilities， as well as milestone dates
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