CompTIA Linux+ [Powered by LPI] Exam 2 - LX0-102 模擬練習
Which of the following words is used to restrict the records that are returned from a SELECT query based on supplied criteria for the values in the records?
正解: A
Each entry in a crontab must end with which of the following characters?
正解: D
An administrator suspects that a gateway machine on their network has failed; the administrator is unsure which machine is the problem. Which of the following commands will help locate the problem machine?
正解: A
Which of the following commands should be added to /etc/bash_profile to change the language of messages from an internationalised program to Portuguese (pt)? (Select TWO).
正解: B,C
CORRECT TEXT
An administrator wants to temporarily prevent users from logging in. Please complete the following commanD. touch /etc/______
An administrator wants to temporarily prevent users from logging in. Please complete the following commanD. touch /etc/______
正解:
NOLOGIN
Which of the following SQL statements will select the fields name and address from the contacts table?
正解: A
CORRECT TEXT
The ________ command is used to add a group to the system. (Please enter only a single command and do not enter duplicate answers in this field.)
The ________ command is used to add a group to the system. (Please enter only a single command and do not enter duplicate answers in this field.)
正解:
/USR/SBIN/GROUPADD, GROUPADD
CORRECT TEXT
The _____________ command is used to send ICMP ECHO_REQUEST datagrams to a single host or gateway. (Provide only the command name with or without path information)
The _____________ command is used to send ICMP ECHO_REQUEST datagrams to a single host or gateway. (Provide only the command name with or without path information)
正解:
ping, /bin/ping