LPIC-1 Practice Test 9 — 10 Questions

Question 1

Based on the /etc/fstab entry, which filesystem will be checked by fsck at boot time?

Accepted Answer

/ and /boot only. The /etc/fstab entry shows that only the root filesystem (/) and /boot have a non-zero value in the dump field (the fifth field). The fsck command at boot time checks filesystems with a dump value greater than 0, in the order specified by the pass number (the sixth field). Since /mnt/data and swap have a dump value of 0, they are skipped.

Answer

All filesystems except NFS

Answer

/, /boot, and /mnt/data

Answer

/, /boot, and swap

Question 2

Which directory in the Filesystem Hierarchy Standard (FHS) contains essential user command binaries that are needed in single-user mode?

Accepted Answer

/bin. The /bin directory contains essential user command binaries (e.g., ls, cp, mv) that are required for system booting and repair in single-user mode. According to the FHS, /bin is intended for commands needed by both the system administrator and users when no other filesystems are mounted, making it critical for single-user mode operations.

Answer

/tmp

Answer

/sbin

Answer

/boot

Question 3

Which TWO of the following are true about the /proc filesystem?

Accepted Answer

It is a pseudo-filesystem that contains runtime system information.. Option C is correct because the /proc filesystem is a pseudo-filesystem that does not exist on disk; it is created by the kernel at runtime to expose system and process information (e.g., /proc/cpuinfo, /proc/meminfo). It provides a mechanism for user-space programs to query kernel data structures without making system calls directly.

Answer

It is formatted with the ext4 filesystem.

Answer

It is a network filesystem.

Answer

It is used to store persistent configuration data.

Question 4

A system administrator writes a script that extracts data from a CSV file and inserts it into a database. The script works correctly when run manually but fails when executed by cron. Which environment variable is most likely causing the issue?

Accepted Answer

PATH. When a script runs manually, the user's interactive shell inherits a fully populated PATH environment variable that includes directories like /usr/local/bin, /usr/bin, and possibly custom script directories. Cron jobs, however, execute with a minimal environment, and the default PATH for cron is often just /usr/bin:/bin. If the script relies on commands (e.g., mysql, psql, or custom scripts) located outside these directories, cron will fail with a 'command not found' error. Setting the full PATH explicitly inside the script or in the crontab file resolves the issue.

Answer

SHELL

Answer

LANG

Answer

HOME

Question 5

Which TWO commands can be used to sort the output of ps -ef by the resident set size (RSS) in descending order?

Accepted Answer

ps --sort=-rss. Option B is correct because `ps --sort=-rss` directly sorts the process list by resident set size (RSS) in descending order, using the minus sign prefix to indicate reverse sort. This is a native `ps` feature that avoids piping to `sort`, which can be less reliable due to column alignment issues.

Answer

ps -ef | sort -k5,5 -rn

Answer

ps -ef | sort -k3 -rn

Answer

ps --sort=rss

Question 6

Based on the exhibit, what will happen if the syslog service is stopped?

Accepted Answer

Apache2 will continue running because the dependency is a soft dependency. Option D is correct because in Linux, services managed by systemd can have dependencies declared as 'Requires' (hard) or 'Wants' (soft). A soft dependency means that the dependent service (Apache2) does not require the target service (syslog) to be running; it will continue to operate even if syslog is stopped. The exhibit likely shows a 'Wants' directive, which does not enforce a strict ordering or runtime requirement.

Answer

Apache2 will be stopped because it depends on syslog

Answer

The system will prompt to restart syslog before stopping

Answer

Apache2 will be automatically restarted because it requires syslog

Question 7

An administrator wants to prevent a specific user, 'john', from being able to schedule cron jobs. Which file should the administrator modify?

Accepted Answer

/etc/cron.deny. The /etc/cron.deny file lists users who are explicitly denied access to schedule cron jobs. If this file exists and the user 'john' is listed in it, he will be prevented from using crontab. This is the standard mechanism for restricting cron access when /etc/cron.allow does not exist.

Answer

/var/spool/cron/crontabs

Answer

/etc/cron.allow

Answer

/etc/crontab

Question 8

A system administrator wants to schedule a script to run every Monday at 3:00 AM, but only if the system clock is set to local time (not UTC). Which crontab entry should be used?

Accepted Answer

0 3 * * 1 /path/to/script. Option B is correct because the crontab format is 'minute hour day-of-month month day-of-week command'. To run at 3:00 AM Monday, the minute field is 0, the hour field is 3 (using 24-hour time), and the day-of-week field is 1 (Monday). The cron daemon does not care about UTC vs local time; it uses the system's configured timezone, so no special flag is needed.

Answer

3 0 * * 1 /path/to/script

Answer

0 15 * * 1 /path/to/script

Answer

0 3 * * 0 /path/to/script

Question 9

Based on the exhibit, which of the following is true about the cleanup.sh job?

Accepted Answer

It runs at 4:30 AM on Monday through Friday. The cron expression `30 4 * * 1-5` specifies that the job runs at minute 30, hour 4 (4:30 AM), every day of month (*), every month (*), but only on days of the week 1 through 5 (Monday=1, Tuesday=2, Wednesday=3, Thursday=4, Friday=5). Therefore, the job runs at 4:30 AM on Monday through Friday.

Answer

It runs at 4:30 AM every day

Answer

It runs at 4:00 AM on weekdays

Answer

It runs at 4:30 AM on weekends

Question 10

Which THREE of the following statements are true about the /etc/shadow file?

Accepted Answer

It can contain password expiration information. The /etc/shadow file stores password expiration information, such as the last password change date, minimum and maximum password age, warning period, and inactivity period. This data is used by the system to enforce password aging policies, making option B correct.

Answer

It contains the encrypted passwords in the second field, replacing the 'x' in /etc/passwd

Answer

It is world-readable to allow any user to verify passwords

LPIC-1 Practice Test 9 — 10 Questions

Exhibit

LPIC-1 Practice Test 9 — 10 Questions

Exhibit