单选题An administrator learns that users are unable to login to a server via ssh. After making a telnet connection to the server， how can the administrator check the status of the sshd subsystem？（）Alssys -a comBlssys -a sshdClssrc -s sshdDlssrc -s tcpip
单选题
An administrator learns that users are unable to login to a server via ssh. After making a telnet connection to the server， how can the administrator check the status of the sshd subsystem？（）
A
lssys -a com
B
lssys -a sshd
C
lssrc -s sshd
D
lssrc -s tcpip
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