Which of the following statements is true regarding the below /etc/resolv.conf file? search example.com 127.0.0.1 208.77.188.166
A. The DNS servers at 127.0.0.1 and 208.77.188.166 will be queried in a round robin fashion.
B. The DNS server with the shortest ping time will be queried first. If the lookup fails, the second server will be queried.
C. example.com will be appended to all host lookups.
D. There is a syntax error.
E. If DNS queries to the localhost fail, the server 208.77.188.166 will be queried.
正解:D
質問 2:
CORRECT TEXT
Which IP protocol is connectionless and unreliable? (Please enter only a single answer and do not enter duplicate answers in this field.)
正解:
UDP,
UDP, UDP/IP, UDP/IP
質問 3:
CORRECT TEXT
What is the name of the simple graphical login manager that comes with a vanilla X11 installation? (Provide only the name of the program without any path information)
正解:
xdm
質問 4:
All of the following are Mail Transport Agents EXCEPT:
A. qmail
B. postfix
C. mail
D. sendmail
E. exim
正解:C
質問 5:
CORRECT TEXT
What command will display the group names and GIDs to which a user belongs? (Provide only the command name with or without path information)
正解:
id, /usr/bin/id
質問 6:
Which of the following commands will print the exit value of the previous command to the screen in bash?
A. echo $?
B. echo $status
C. echo $#
D. echo $&}
E. echo $exit
正解:A
質問 7:
CORRECT TEXT
What is the command to delete the default gateway from the system IP routing table? (Please specify the complete command with arguments, please no duplicate answers in this field.)
正解:
/SBIN/IPROUTEDEL0.0.0.0, /SBIN/IPROUTEDELDEFAULT, /SBIN/ROUTEDEL0.0.0.0, /SBIN/ROUTEDELDEFAULT, IPROUTEDEL0.0.0.0, IPROUTEDELDEFAULT, ROUTEDEL0.0.0.0, ROUTEDELDEFAULT
質問 8:
Which of the following commands would an administrator use to create an OpenSSH authentication key?
A. sshd
B. ssh-agent
C. ssh-keygen
D. ssh-add
正解:C
Tajima -
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