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单选题
A host is expected to be a mail relay or receiving endpoint. Which of the following daemons should be listening for connections on port 25？（）
A
ftpd
B
imapd
C
pop3d
D
sendmail
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考题
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考题
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考题
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考题
单选题The command frame-relay map ip 10.121.16.8 102 broadcast was entered on the router. Which of the following statements is true concerning this command（）。A
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考题
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考题
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考题
单选题There is a problem starting a telnet session on a system. Which of the following daemons should be checked?（）A
tftpd B
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考题
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考题
单选题During the boot process, which of the following files should be sued to control system initialization and start daemons and subsystems?（）A
/etc/inittabB
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/etc/environment
考题
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Implement two 16-port switches design with ISLsC
Implement two 8-port switches design without ISLsD
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NbtstatB
NetshC
NetstatD
Nslookup
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