CompTIA LX0-104 問題集

質問 1：
In case neither cron.allow nor cron.deny exist in /etc/, which of the following is true?
A. Without additional configuration, no users may have user specific crontabs.
B. The cron daemon will refuse to start and report missing files in the system's logfile.
C. When a user creates a user specific crontab the system administrator must approve it explicitly.
D. Without additional configuration, all users may have user specific crontabs.
正解：A
解説: (Topexam メンバーにのみ表示されます)

質問 2：
Which of the following statements is true regarding the/etc/shadowfile?
A. All users have full read and write access to/etc/shadow.
B. /etc/shadowmay not be readable or writable by user root.
C. Only root is allowed to read and write/etc/shadow.
D. All users have full read access to/etc/shadow.
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 3：
Why is the correct configuration of a system's time zone important?
A. Because NTP chooses servers nearby based on the configured time zone.
B. Because the time zone is saved as part of the modification times of files and cannot be changed after a file is created.
C. Because the conversion of Unix timestamps to local time relies on the time zone configuration.
D. Because the environment variables LANG and LC_MESSAGES are, by default, set according to the time zone.
正解：C
解説: (Topexam メンバーにのみ表示されます)

質問 4：
How many bits make up an IPv6 address?
A. 48
B. 256
C. 32
D. 128
E. 64
正解：D
解説: (Topexam メンバーにのみ表示されます)

質問 5：
Given the following routing table:

Why does the commandroute add default gw 192.168.1.1fail?
A. Because only one route can exist at a time.
B. Because there is already a default route.
C. Because default routes can not be set manually.
D. Because there is no route to 192.168.1.1.
E. Because default routes must be set withifconfig
正解：D
解説: (Topexam メンバーにのみ表示されます)