[2023年更新]合格できるLinux Foundation LFCSテスト練習問題試験問題集
高合格率LFCS問題集解答でLFCS問題集と正解回答
LFCS認定試験はベンダー中立認証であり、特定のLinux分布に焦点を合わせていないことを意味します。この試験では、システムアーキテクチャ、ファイルシステム階層、パッケージ管理、ネットワーキング、セキュリティなど、幅広いLinuxディストリビューションのトピックをカバーしています。この認定試験に合格した候補者は、Linuxシステム管理の専門家と見なされ、雇用主に非常に求められています。
質問 # 61
How many fields are in a syntactically correct line of /etc/fstab?
- A. 0
- B. 1
- C. 2
- D. 3
- E. 4
正解：D
解説：
Explanation
質問 # 62
Which of the following commands makes /bin/foo executable by everyone but writable only by its owner?
- A. chmod o+rwx,a+rx /bin/foo
- B. chmod 775 /bin/foo
- C. chmod 577 /bin/foo
- D. chmod u=rwx,go=rx /bin/foo
正解：D
質問 # 63
CORRECT TEXT
The system's timezone may be set by linking /etc/localtime to an appropriate file in which directory? (Provide the full path to the directory, without any country information)
正解：
解説：
/usr/share/zoneinfo/
質問 # 64
Which of the following Linux filesystems preallocates a fixed number of inodes at the filesystem's make/ creation time and does NOT generate them as needed? (Choose TWO correct answers.)
- A. JFS
- B. XFS
- C. procfs
- D. ext2
- E. ext3
正解：D、E
質問 # 65
What is true regarding the command sendmail?
- A. All MTAs, including Postfix and Exim, provide a sendmail command.
- B. The sendmail command prints the MTAs queue history of which mails have been sent successfully.
- C. With any MTA, the sendmail command must be run periodically by the cron daemon.
- D. It is only available when the sendmail MTA is installed.
正解：A
質問 # 66
Which of the following SQL queries counts the number of occurrences for each value of the field order_type in the table orders?
- A. SELECT order_type,COUNT(*) FROM orders GROUP BY order_type;
- B. SELECT AUTO_COUNT FROM orders COUNT order_type;
- C. SELECT order_type,COUNT(*) FROM orders WHERE order_type=order_type;
- D. COUNT(SELECT order_type FROM orders);
- E. SELECT COUNT(*) FROM orders ORDER BY order_type;
正解：A
質問 # 67
CORRECT TEXT
Which file in the /proc filesystem lists parameters passed from the bootloader to the kernel? (Specify the file name only without any path.)
正解：
解説：
cmdline, /proc/cmdline
質問 # 68
Which of the following commands can be used to display the local routing table? (Choose TWO correct answers.)
- A. netstat
- B. route
- C. dig
- D. ifconfig
- E. trackroute
正解：A、B
解説：
Explanation/Reference:
質問 # 69
CORRECT TEXT
With IPv6, how many bits have been used for the interface identifier of an unicast address? (Specify the number using digits only.)
正解：
解説：
64
質問 # 70
Which of the following commands can be used to extract content from a tar file?
- A. tar -xvf
- B. tar -c
- C. tar -v
- D. tar -vf
- E. tar -e
正解：A
解説：
Explanation/Reference:
質問 # 71
Which of the following commands prints a listof usernames (first column) and their primary group (fourth column) from the /etc/passwd file?
- A. paste -f 1,4 /etc/passwd
- B. fmt -f 1,4 /etc/passwd
- C. split -c 1,4 /etc/passwd
- D. cut -d : -f 1,4 /etc/passwd
正解：D
質問 # 72
SIMULATION
Which command can be used to investigate the properties for a particular window in X by clicking that window? (Specify ONLY the command without any path or parameters.)
正解：
解説：
/usr/bin/xwininfo -or- xwininfo
質問 # 73
Which command will display the last line of the file foo.txt?
- A. tail foo.txt
- B. tail -n 1 foo.txt
- C. head -n 1 foo.txt
- D. last -n 1 foo.txt
正解：B
質問 # 74
What is the output of the following command sequence?
for token in a b c; do
echo -n "$token ";
done
- A. "a " "b " "c "
- B. abc
- C. anbncn
- D. a b c
- E. token token token
正解：D
質問 # 75
CORRECT TEXT
What argument to the -type option of find will match files that are symbolic links? (Specify only the argument and no other options or words.)
正解：
解説：
l
質問 # 76
Which file should be edited to select the network locations from which Debian installation package files are loaded?
- A. /etc/apt/sources.list
- B. /etc/apt/apt.conf
- C. /etc/apt/apt.conf.d
- D. /etc/dpkg/dselect.cfg
- E. /etc/dpkg/dpkg.cfg
正解：A
質問 # 77
Which of the following files assigns a user to its primary group?
- A. /etc/group
- B. /etc/gshadow
- C. /etc/pgroup
- D. /etc/passwd
- E. /etc/shadow
正解：D
質問 # 78
CORRECT TEXT
Which command is used to add an empty group to the system? (Specify ONLY the command without any path or parameters.)
正解：
解説：
groupadd, /usr/sbin/groupadd
質問 # 79
During a system boot cycle, what program is executed after the BIOS completes its tasks?
- A. The init program
- B. The inetd program
- C. The bootloader
- D. The kernel
正解：C
質問 # 80
Which of the following commands can be used to locate programs and their corresponding man pages and configuration files?
- A. query
- B. whereis
- C. dirname
- D. which
- E. basename
正解：B
質問 # 81
Where are user specific crontabs stored?
- A. As individual per-user files in /etc/cron.user.d.
- B. In the .crontab file in the user's home directory.
- C. In the database file /etc/crontab.db which is shared by all users.
- D. In the file /var/cron/user-crontab which is shared by all users.
- E. As individual per-user files within /var/spool/cron.
正解：E
質問 # 82
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LFCS認証試験問題集ガイド解答は練習専門PassTest：https://www.passtest.jp/Linux-Foundation/LFCS-shiken.html
最高のベストLinux Foundation Certified学習試験問題集ガイドは最高のLFCS試験：https://drive.google.com/open?id=1LDVje8RVOGXv6RcfFjHhOGDBvxaBS57U