單項(xiàng)選擇題

During an attempt to ’scp’ between two hosts， an error indicating PRNG is not seeded is displayed.What is the likely cause of the error？（）

A.The sshd user id is locked.
B.The /var/empty directory needs to be created.
C.PRNG is set to ’no’ in the /etc/ssh/sshd_config file.
D.The permissions on /dev/random and /dev/urandom are incorrect.

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單項(xiàng)選擇題

What must an administrator do to prevent new telnet users from connecting to the system？（）

A.rmdev -l /dev/pts
B.touch /etc/nologin
C.chdev -l sys0 -a nologin
D.chuser -a login=false ALL

單項(xiàng)選擇題

IBM remote support for hardware maintenance is required for several mission critical Power 595 servers. The data center is very security conscious and does not allow internet access. How should an administrator configure outbound connectivity of Electronic Service Agent？（）

A.VPN
B.Modem
C.Private LAN
D.Pass-through systems

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During an attempt to ’scp’ between two hosts， an error indicating PRNG is not seeded is displayed.What is the likely cause of the error？（）

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What must an administrator do to prevent new telnet users from connecting to the system？（）

IBM remote support for hardware maintenance is required for several mission critical Power 595 servers. The data center is very security conscious and does not allow internet access. How should an administrator configure outbound connectivity of Electronic Service Agent？（）

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During an attempt to ’scp’ between two hosts， an error indicating PRNG is not seeded is displayed.What is the likely cause of the error？（）

What must an administrator do to prevent new telnet users from connecting to the system？（）

IBM remote support for hardware maintenance is required for several mission critical Power 595 servers. The data center is very security conscious and does not allow internet access. How should an administrator configure outbound connectivity of Electronic Service Agent？（）