LFCS試験無料問題集（260題）「Linux Foundation Certified System Administrator 認定」

出題：1

What command will generate a list of user names from /etc/passwd along with their login shell?

A. cut -d: -f1,7 /etc/passwd

B. colrm 1,7 /etc/passwd

C. column -s : 1,7 /etc/passwd

D. chop -c 1,7 /etc/passwd

正解：A 解答を投票する

出題：2

Which command can be used to delete a group from a Linux system?

A. groups

B. groupdel

C. groupmod

D. groupedit

正解：B 解答を投票する

出題：3

Which of the following commands can be used to determine how long the system has been running? (Choose TWO correct answers.)

A. up

B. top

C. uptime

D. time -up

E. uname -u

正解：B,C 解答を投票する

出題：4

What is NOT contained in the locale setting of the operating system?

A. thousands separator

B. language

C. currency symbol

D. timezone

正解：D 解答を投票する

出題：5

After running the command umount /mnt, the following error message is displayed:
umount: /mnt: device is busy.
What is a common reason for this message?

A. Another file system still contains a symlink to a file inside /mnt.

B. A user has a file open in the /mnt directory.

C. The files in /mnt have been scanned and added to the locate database.

D. The kernel thinks that a process is about to open a file in /mnt for reading.

E. The kernel has not finished flushing diskwrites to the mounted device.

正解：B 解答を投票する

出題：6

Which of the following are commonly used Mail Transfer Agent (MTA) applications? (Choose THREE correct answers.)

A. Exim

B. Sendmail

C. SMTPd

D. Postfix

E. Procmail

正解：A,B,D 解答を投票する

出題：7

Which of the following commands can be used to display the local routing table? (Choose TWO correct answers.)

A. route

B. dig

C. trackroute

D. ifconfig

E. netstat

正解：A,E 解答を投票する

出題：8

What is the first program that is usually started, at boot time, by the Linux kernel when using SysV init?

A. /boot/init

B. /proc/sys/kernel/init

C. /etc/rc.d/rcinit

D. /lib/init.so

E. /sbin/init

正解：E 解答を投票する

出題：9

Which of the following is correct when talking about mountpoints?

A. Files within a directory are deleted when the directory is used as a mount point.

B. Directories need to have the SetUID flag set to be used as a mount point.

C. Every existing directory can be used as a mount point.

D. Only empty directories can be used as a mount point.

正解：C 解答を投票する

出題：10

Which of the following commands connects to the remote host example.com which has OpenSSH listening on TCP port 2222? (Choose TWO correct answers.)

A. ssh --port 2222 example.com

B. ssh -o GatewayPort=2222 example.com

C. ssh -o Port=2222 example.com

D. ssh example.com:2222

E. ssh -p 2222 example.com

正解：C,E 解答を投票する

出題：11

How is a display manager started?

A. It is started by inetd when a remote hosts connects to the X11 port.

B. It is started like any other system service by the init system.

C. It is started automatically when a X11 user logs in to the system console.

D. It is started by a user using the command startx.

正解：B 解答を投票する

出題：12

When using rpm --verify to check files created during the installation of RPM packages, which ofthe following information is taken into consideration? (Choose THREE correct answers.)

A. MD5 checksums

B. GnuPG signatures

C. Inodes

D. File sizes

E. Timestamps

正解：A,D,E 解答を投票する

出題：13

Which of the following commands will change the quota for a specific user?

A. repquota

B. quota -e

C. quota

D. edquota

正解：D 解答を投票する

出題：14

What is true regarding the command sendmail?

A. With any MTA, the sendmail command must be run periodically by the cron daemon.

B. It is only available when the sendmail MTA is installed.

C. The sendmail command prints the MTAs queue history of which mails have been sent successfully.

D. All MTAs, including Postfix and Exim, provide a sendmail command.

正解：D 解答を投票する

LFCS試験無料問題集「Linux Foundation Certified System Administrator 認定」