CompTIA CompTIA Certifications LX0-103 Questions & Answers

• Question 21:

  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. The kernel has not finished flushing disk writes to the mounted device.

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

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

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

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

  Correct Answer: B

• Question 22:

  What does the command mount -a do?

  A. It mounts all available filesystems onto the current directory.

  B. It shows all mounted filesystems.

  C. It mounts all user mountable filesystems for the current user.

  D. It mounts all filesystems listed in /etc/fstab which have the option auto set.

  E. It mounts all filesystems listed in /etc/fstab which have the option noauto set.

  Correct Answer: D

• Question 23:

  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. ext3

  B. JFS

  C. ext2

  D. XFS

  E. procfs

  Correct Answer: AC

• Question 24:

  What is the purpose of the Filesystem Hierarchy Standard?

  A. It is a security model used to ensure files are organized according to their permissions and accessibility.

  B. It provides unified tools to create, maintain and manage multiple filesystems in a common way.

  C. It defines a common internal structure of inodes for all compliant filesystems.

  D. It is a distribution neutral description of locations of files and directories.

  Correct Answer: D

• Question 25:

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

  A. edquota

  B. repquota

  C. quota -e

  D. quota

  Correct Answer: A

• Question 26:

  Which utility would be used to change how often a filesystem check is performed on an ext2 filesystem without losing any data stored on that filesystem?

  A. mod2fs

  B. fsck

  C. tune2fs

  D. mke2fs

  E. fixe2fs

  Correct Answer: C

• Question 27:

  How many fields are in a syntactically correct line of /etc/fstab?

  A. 3

  B. 4

  C. 5

  D. 6

  E. 7

  Correct Answer: D

• Question 28:

  Which of the following file permissions belong to a symbolic link?

  A. -rwxrwxrwx

  B. +rwxrwxrwx

  C. lrwxrwxrwx

  D. srwxrwxrwx

  Correct Answer: C

• Question 29:

  Creating a hard link to an ordinary file returns an error. What could be the reason for this?

  A. The source file is hidden.

  B. The source file is read-only.

  C. The source file is a shell script.

  D. The source file is already a hard link.

  E. The source and the target are on different filesystems.

  Correct Answer: E

• Question 30:

  Which of the following commands creates an ext3 filesystem on /dev/sdb1? (Choose TWO correct answers.)

  A. /sbin/mke2fs -j /dev/sdb1

  B. /sbin/mkfs -t ext3 /dev/sdb1

  C. /sbin/mkfs -c ext3 /dev/sdb1

  D. /sbin/mke3fs -j /dev/sdb1

  Correct Answer: AB