010-160 Exam Questions and Answers

You are managing a directory shared by a project team. You want all files created in this directory to automatically belong to the 'developers' group, regardless of the user's primary group. Which command achieves this?

usermod -aG developers

chgrp developers /data

chmod g+s /data

chmod g+s sets the setgid bit on the directory, so newly created files inherit the directory's group (developers) rather than the creator's primary group. This satisfies the stem's requirement that all files automatically belong to the developers group regardless of the user's primary group.

chmod 1777 /data

Why: `chmod g+s /data` sets the setgid (SGID) bit on the directory. When SGID is set on a directory, any file or subdirectory created inside inherits the directory's group ownership instead of the creating user's primary group. This is exactly the behavior needed for a shared 'developers' group directory.

You want to change the primary group of an existing user named 'bob' to 'staff'. Which command should you use?

groupmod -n staff bob

chgrp staff bob

usermod -g staff bob

`usermod -g staff bob` sets bob's primary group, satisfying the requirement to change an existing user's primary group. The lowercase `-g` flag specifically assigns the primary group, whereas uppercase `-G` would only add supplementary groups, leaving the primary group unchanged.

usermod -G staff bob

Why: The usermod command modifies existing user account attributes, and the -g flag specifically sets the user's primary group (the GID stored in /etc/passwd). Running 'usermod -g staff bob' changes bob's primary group to staff while leaving his supplementary group memberships intact. This is the standard, correct way to reassign a primary group on a Linux system.

A system administrator needs to identify the numerical ID (UID) of the user 'jdoe'. Which file should be checked?

/etc/shadow

/etc/profile

/etc/passwd

The /etc/passwd file stores one colon-separated record per account, and its third field holds the numeric UID. Reading it directly reveals jdoe's UID, satisfying the requirement to identify the numerical identifier rather than a username or group ID.

/etc/group

Why: The /etc/passwd file stores one line per user account, with colon-separated fields where the third field is the numerical UID. Checking this file (or running getent passwd jdoe) reveals the UID assigned to 'jdoe'. It is world-readable, unlike /etc/shadow, so it is the standard place to look up account identifiers.

A user's account has been compromised. Which command is the most effective way to lock the user account immediately while preserving their files?

usermod -L jdoe

usermod -L prefixes the password hash with an exclamation mark in /etc/shadow, immediately disabling password logins while leaving the account's home directory and files untouched. This locks access without deleting data, unlike userdel, which would remove the account and its files.

userdel jdoe

killall -u jdoe

chsh -s /bin/false jdoe

Why: `usermod -L jdoe` locks the account by prepending an exclamation mark (!) to the password hash in /etc/shadow, immediately preventing password-based logins while leaving the user's home directory, files, UID, and group memberships fully intact. This is the standard, reversible administrative action for a compromised account because it disables authentication without destroying data or ownership.

Which permission bit must be set on a directory to allow a user to enter the directory and access files within it?

Write (w)

Execute (x)

Execute (x) permission on a directory grants traverse rights, letting a user pass through it and reach files inside. Without it, path resolution fails even if the files themselves are readable, so x satisfies the stem's requirement to enter the directory and access its contents.

Sticky bit

Read (r)

Why: The execute (x) bit on a directory grants the right to traverse it — that is, to access files and subdirectories by name within it. Without x, even if you have read permission, you cannot cd into the directory or open files whose paths pass through it.

You are configuring a temporary directory where multiple users save files. To ensure that users can only delete their own files and not files created by others, what must you set?

chown root /tmp/shared

chmod 777 /tmp/shared

umask 077

chmod +t /tmp/shared

The sticky bit on a directory restricts deletion and renaming to each file's owner, the directory owner, or root. Setting chmod +t on the shared directory enforces exactly the constraint that users cannot delete others' files.

Why: The sticky bit (chmod +t) on a shared directory ensures that only the file's owner (or root) can delete or rename files within it, even if the directory is world-writable. This is exactly the behaviour needed for /tmp-style shared drop boxes where multiple users write files but must not remove each other's data. The kernel enforces this by checking the file owner against the deleting user before permitting unlink or rename.

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All Finding Your Way ON A Linux System questions

Domain 2: Finding Your Way ON A Linux System

You want to delete a directory named 'temp_backup' that contains several files. Which command will successfully remove it and its contents?

rm -r temp_backup

The `-r` flag makes `rm` recurse into the directory, deleting its files and subdirectories before removing `temp_backup` itself. Without it, `rm` refuses to act on directories. This satisfies the stem's requirement to remove a non-empty directory and all its contents in one command.

rm temp_backup

rmdir temp_backup

rm -f temp_backup

Why: `rm -r temp_backup` recursively removes the directory and all its contents, which is required because `rm` by default refuses to delete directories. The -r (recursive) flag descends into subdirectories and deletes files before removing the directory itself. This is the standard way to delete a non-empty directory.

To navigate from your current directory to your home directory regardless of your current location, which command is most efficient?

cd ..

cd ~

The tilde expands to the value of $HOME, so `cd ~` resolves to your home directory from any working directory in a single step. This satisfies the stem's "regardless of your current location" constraint without needing an absolute path or multiple commands.

cd /

cd /home

Why: The 'cd ~' command navigates directly to the current user's home directory from any location. The tilde (~) is a shell expansion that represents the home directory path, making it the most efficient and location-independent way to return home. 'cd' alone also works, but 'cd ~' is explicit and universally correct.

Which of the following commands is used to create an empty file or update the timestamp of an existing file?

touch

The `touch` command creates a zero-byte file when the target does not exist, and updates the access and modification timestamps to the current time when it does. This dual behaviour directly satisfies the stem's requirement to either create an empty file or refresh an existing file's timestamp.

mkdir

Why: The `touch` command is specifically designed to create an empty file if it does not exist, or update the access and modification timestamps of an existing file to the current time. It does this by making a `utime()` system call, which sets the file's timestamps without altering its content. This is the standard Linux/Unix utility for timestamp manipulation and empty file creation.

You are copying a directory named 'source' to 'destination' and want to ensure all subdirectories and file attributes are preserved. Which flag is essential?

cp -a

The `-a` flag combines `-R`, `-p` and `-d`, recursively copying while preserving permissions, ownership, timestamps and symbolic links. This directly satisfies the stem's requirement that all subdirectories and file attributes survive the copy, which a plain `cp -R` would not guarantee.

cp -p

cp -v

cp -r

Why: The `-a` (archive) flag is a combination of `-dR --preserve=all`, which recursively copies directories while preserving symbolic links, file permissions, ownership, timestamps, and extended attributes. This makes it the only option that ensures all subdirectories and file attributes are preserved in a single command. While `-p` preserves some attributes, it does not recurse into subdirectories, and `-r` recurses but does not preserve attributes. Therefore, `cp -a` is essential for a complete archive copy.

You are using the 'less' command to view a large log file. Which key do you press to search forward for a specific string?

Within the pager, pressing / opens a forward search prompt, letting you type a string and jump to its next occurrence in the log. This satisfies the requirement to search forward through the file's contents without leaving less.

Why: In the 'less' pager, pressing '/' initiates a forward search for a specified string. After typing the pattern and pressing Enter, 'less' highlights all matches and jumps to the first occurrence after the current position. This is consistent with the vi/vim editor's search behavior, which 'less' mimics for user familiarity.

You need to search for a specific command description within the manual pages using a keyword. Which command should you use?

man -s

man -f

man -k

`man -k` searches the manual page's short descriptions (the whatis database) for a keyword, returning every matching entry. This directly satisfies the stem's requirement to locate a command by keyword rather than browsing a single page, which plain `man` cannot do.

help

Why: The 'man -k' option (equivalent to 'apropos') searches the manual page short descriptions for a keyword and returns all matching entries, which is exactly what you need when you know a concept but not the command name. It queries the whatis database built by mandb/makewhatis. This is the standard way to locate commands by keyword rather than by exact name.

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All The Power OF The Command Line questions

Domain 3: The Power OF The Command Line

You want to find all occurrences of the string 'ERROR' within the 'syslog' file. Which command is most appropriate?

cat 'ERROR' syslog

find 'ERROR' syslog

grep 'ERROR' syslog

grep searches file contents line by line for a pattern, printing matching lines. Given the constraint of locating every 'ERROR' occurrence inside the syslog file, grep 'ERROR' syslog is the direct tool; alternatives like find or locate operate on filenames, not file contents.

sed 'ERROR' syslog

Why: 'grep' (global regular expression print) searches a file or input stream for lines matching a pattern and prints them. Running 'grep ERROR syslog' scans the syslog file and outputs every line containing 'ERROR', which is exactly the task described.

Which command is used to display the current working directory in the terminal?

pwd

pwd prints the absolute path of the directory the shell is currently in, reading it from the shell's tracked location rather than the filesystem. It directly answers the question of where you are, requiring no arguments.

dir

Why: The `pwd` command stands for 'print working directory' and is specifically designed to output the absolute path of the current directory in a Linux/Unix terminal. It reads the current directory from the kernel and displays it, making it the correct choice for this task. This is a fundamental command in the Linux Essentials (010-160) exam domain.

You need to display the contents of a file named 'config.txt' directly to your terminal screen. Which command should you use?

head config.txt

cat config.txt

cat reads the file sequentially and writes its contents to standard output, which is the terminal, satisfying the requirement to display config.txt directly on screen. It requires no pager or editor and outputs the raw file contents.

echo config.txt

grep config.txt

Why: The `cat` command (concatenate) reads one or more files and writes their contents to standard output, which by default is the terminal. Running `cat config.txt` therefore prints the entire file to the screen in one pass, exactly matching the requirement to display file contents directly. It is the canonical tool for this purpose on Linux.

You wish to send the output of the 'ls -l' command directly into a file named 'dirlist.txt', overwriting any existing content. Which operator should you use?

ls -l > dirlist.txt

The > redirection operator sends stdout to dirlist.txt, truncating and overwriting any existing content, exactly as the scenario requires. The shell opens the file for writing before executing ls, so prior contents are discarded rather than appended.

ls -l | dirlist.txt

ls -l >> dirlist.txt

ls -l < dirlist.txt

Why: The single greater-than operator (>) redirects standard output to a file, creating the file if it does not exist or truncating and overwriting it if it does. Therefore 'ls -l > dirlist.txt' writes the directory listing into dirlist.txt, replacing any prior content. This is the standard POSIX shell redirection for overwrite semantics.

You want to replace every occurrence of 'old' with 'new' in the file 'data.txt' and view the result in the terminal. Which command achieves this?

sed 's/old/new/g' data.txt

The sed substitute command with the g flag replaces every match on each line, and without -i it writes to standard output, so results appear in the terminal while data.txt stays untouched. This satisfies both the replace-all and view-in-terminal constraints.

sed 's/old/new/' data.txt

grep 's/old/new/g' data.txt

sed 'r/old/new/g' data.txt

Why: The sed command with the 's/old/new/g' expression performs a global substitution, replacing every occurrence of 'old' with 'new' on each line of data.txt. By default, sed writes the modified content to standard output, which displays the result in the terminal without altering the original file. The 'g' flag is essential because without it, only the first occurrence per line would be replaced.

You need to set an environment variable named 'MYVAR' to 'hello' so that it is available to child processes. Which command is correct?

set MYVAR=hello

MYVAR=hello

env MYVAR=hello

export MYVAR=hello

The export builtin marks MYVAR for inclusion in the environment of subsequently executed commands, so child processes inherit it. Assigning without export would create only a shell variable, invisible to children, failing the stem's inheritance requirement.

Why: The export builtin marks a shell variable for inclusion in the environment of subsequently executed child processes. Writing export MYVAR=hello both assigns the value and exports it in one step, making it visible to programs launched from that shell. Without export, the variable would remain a shell-local variable and would not be inherited by child processes.

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All The Linux Operating System questions

Domain 4: The Linux Operating System

An administrator wants to view the current system load and active processes. Which utility is the most appropriate for a real-time monitor?

df -T

ps aux

cat /proc/cpuinfo

top

top provides a continuously refreshing real-time view of system load, CPU and memory usage, and active processes, satisfying the stem's real-time monitor constraint. Alternatives like ps or uptime give only static snapshots, so top is the appropriate utility here.

Why: The `top` command provides a real-time, continuously updating view of system load, CPU usage, memory usage, and active processes, refreshing by default every few seconds. It is the standard interactive utility for live monitoring of system load and processes on Linux. This matches the requirement for a real-time monitor.

You are managing a Linux server and need to confirm the IP address assigned to the eth0 interface. Which command is most appropriate on modern distributions?

ifconfig

ip addr

`ip addr` queries the kernel's netlink interface directly, reading current interface state from the running system rather than a legacy configuration file. It reports eth0's assigned IPv4 and IPv6 addresses, satisfying the need to confirm the actual address on modern distributions where `ifconfig` is deprecated and often absent by default.

route -n

netstat -rn

Why: The `ip addr` command is part of the iproute2 suite, which has replaced the legacy net-tools package on modern Linux distributions. It queries the kernel's network stack directly via netlink sockets and displays all interfaces with their assigned IPv4/IPv6 addresses, MAC addresses, and link state. Running `ip addr` (or its shorthand `ip a`) shows the eth0 interface with its inet address, making it the correct modern tool for this task.

A technician needs to identify the amount of RAM installed in a server without opening the chassis. Which command provides this information from the command line?

uptime

lsblk

free -m

free -m reads /proc/meminfo and reports total, used and available RAM in mebibytes, giving installed memory without physical access. It satisfies the stem's constraint of identifying RAM from the command line without opening the chassis.

df -h

Why: `free -m` reads memory statistics from /proc/meminfo and displays total, used, free, shared, buff/cache, and available RAM in mebibytes. It is the standard command-line tool for reporting installed and currently used physical memory without touching the hardware.

You have added a new hard drive to your Linux server, but the system does not automatically recognize the device. What is the first step you should take to verify if the kernel detects the hardware?

Reinstall the operating system.

Examine the output of dmesg.

Examining `dmesg` reveals kernel ring-buffer messages, including hardware detection events logged when the kernel probes the new drive. This directly satisfies the stem's requirement to verify kernel recognition, since `dmesg` records device discovery, driver binding and any SCSI or ATA attachment errors at boot or hotplug time.

Run the top command.

Edit the /etc/fstab file.

Why: The `dmesg` command prints the kernel ring buffer, which contains messages from the kernel during boot and runtime, including hardware detection events. When a new hard drive is added, the kernel logs its detection (or failure to detect) there, making `dmesg` the first place to verify whether the kernel recognized the device. This is the standard first diagnostic step for hardware recognition issues.

A small business owner wants to implement a server that allows for long-term support and stability for critical financial applications. Which distribution strategy should they prioritize?

Choosing a distribution that offers an LTS version with a long support lifecycle.

An LTS release freezes package versions and backports only security fixes, so the financial applications run against a stable, unchanging ABI for years. This directly satisfies the stem's demand for long-term support and stability, unlike rolling distributions whose continuous updates risk breaking critical software.

Using a desktop-focused distribution for ease of installation.

Compiling the kernel from source to match the specific hardware.

Selecting a rolling release distribution for frequent kernel updates.

Why: For long-term support and stability of critical financial applications, an LTS (Long Term Support) distribution is ideal because it provides a stable, well-tested platform with security updates for an extended period (often 5-10 years). This minimizes disruptive changes and ensures reliability. Rolling releases and desktop-focused distributions prioritize frequent updates or ease of use, not long-term stability.

Which command is used to display the current directory path in the terminal?

dir

pwd

pwd prints the absolute path of the current working directory to standard output, directly answering the requirement to display the current directory path. Commands such as ls list directory contents instead, and cd changes directory rather than reporting it.

Why: The 'pwd' command (print working directory) outputs the absolute path of the directory the shell is currently in. It reads the shell's current directory state and prints it to standard output, which is exactly what the question asks for.

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All The Linux Community And A Career IN Open Source questions

Domain 5: The Linux Community And A Career IN Open Source

Which of the following describes the core philosophy of 'Open Source' as defined by the Open Source Initiative?

The source code must be available for modification and redistribution.

Open Source Initiative criteria require freely redistributable source code, permitting modification and derived works under the same terms. This option captures that core licence requirement, satisfying the definition's demand that source be available for modification and redistribution rather than merely free of cost.

The software must be provided for free without any charge.

The code must be written in C or C++.

The software must only be used for non-profit purposes.

Why: The Open Source Initiative's Open Source Definition centers on the freedom to use, modify, and redistribute source code, including derivative works, without discrimination against persons, groups, or fields of endeavor. Option A captures this core requirement that source code must be available and modifiable. Free-of-charge distribution is explicitly not required — OSI-approved licenses may permit commercial sale.

A Linux administrator needs to determine if their distribution is based on Debian or RHEL. Which command or path is most indicative of this family?

Checking for the presence of the 'systemd' binary.

Checking for the existence of /etc/debian_version.

The presence of /etc/debian_version confirms a Debian-derived distribution, since Debian and its descendants write this file during installation. RHEL-family systems instead ship /etc/redhat-release, so checking this path directly distinguishes the two families without relying on package manager commands that may be absent.

Running the 'uname -a' command.

Checking for the existence of /etc/sysconfig.

Why: The file /etc/debian_version is a Debian-specific artifact that exists on Debian and its derivatives (Ubuntu, Mint, Kali, etc.) but is absent on RHEL-family systems. Its presence is a reliable, low-level indicator of the Debian package management lineage. RHEL-family systems instead use /etc/redhat-release and /etc/system-release, making /etc/debian_version the clearest single-path discriminator between the two families.

An open source developer wants to choose a license that allows their code to be included in proprietary software without requiring the proprietary software to open its source. Which license should they choose?

AGPL

GPLv3

MIT

MIT permits relicensing within proprietary products because it imposes no copyleft obligation, requiring only attribution and retention of the licence notice. This satisfies the stem's constraint that derivative proprietary software need not disclose its source, unlike GPL-family licences whose reciprocal terms would force source release.

Creative Commons Attribution-ShareAlike

Why: The MIT License is a permissive license that allows code to be used, modified, and distributed in proprietary software, requiring only attribution and inclusion of the license text. It imposes no copyleft obligation, so derivative works can remain closed-source.

When considering a career in Linux system administration, which certification path demonstrates proficiency in managing system-level services and security across diverse distributions?

LPIC-1: Linux Administrator

LPIC-1 from the Linux Professional Institute is distribution-neutral: its two exams cover system architecture, package management with both Debian and Red Hat tools, the command line, filesystems, scripting, user administration, essential services, networking and security basics. Passing shows you can administer Linux whichever distribution an employer uses, which is the key phrase in the question. Linux Essentials, this exam, is the natural step before it.

AWS Certified SysOps Administrator

Red Hat Certified System Administrator (RHCSA)

Cisco Certified Network Associate (CCNA)

Why: LPIC-1: Linux Administrator is a distribution-neutral certification that validates proficiency in managing Linux system-level services, security, and administration across diverse distributions like Debian, Red Hat, and SUSE. It is specifically designed to demonstrate vendor-independent Linux skills, making it the best fit for the question's emphasis on 'diverse distributions.' The LPIC-1 exam covers topics such as package management, filesystem management, user administration, and networking.

Your company is considering moving from proprietary software to open source solutions. Which aspect of the GPL license is most restrictive regarding the distribution of modified code?

You must contribute all modifications back to the original project maintainer.

You must release the source code of any derivative works if you distribute the binaries.

The GPL's copyleft clause requires that anyone distributing binaries of derivative works must also make the corresponding source code available under the same licence. This satisfies the stem's constraint by identifying the most restrictive distribution obligation.

You are not allowed to modify the source code for internal business use.

You are forbidden from selling any software that uses GPL code.

Why: The GPL's core copyleft obligation is that if you distribute binaries of a derivative work, you must also make the complete corresponding source code available under the same GPL terms. This 'viral' requirement is what makes the GPL more restrictive than permissive licenses like MIT or BSD when distributing modified code.

An administrator is comparing package management systems. Which tool is primarily used on RHEL-based distributions for resolving dependencies and downloading packages?

DNF

DNF resolves dependencies and downloads packages on RHEL-based distributions, satisfying the stem's platform constraint. As the successor to YUM, it uses libsolv for dependency solving and reads repository metadata to fetch RPM packages, making it the native package manager for RHEL, Fedora and CentOS Stream.

Pacman

Portage

APT

Why: DNF (Dandified YUM) is the default high-level package manager on modern RHEL-based distributions (RHEL 8+, Fedora, CentOS Stream, Rocky, AlmaLinux). It resolves dependencies using the libsolv library and downloads packages from configured repositories, replacing the older YUM tool while maintaining CLI compatibility.

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Frequently asked questions

How many questions are on the 010-160 exam?

The 010-160 exam has 40 questions and must be completed in 60 minutes. Always confirm current details on the vendor's official exam page.

What types of questions appear on the 010-160 exam?

Scenario-based questions covering exam objectives with detailed answer explanations.

How are 010-160 questions organised by domain?

The exam covers 5 domains: Security And File Permissions, Finding Your Way ON A Linux System, The Power OF The Command Line, The Linux Operating System, The Linux Community And A Career IN Open Source. Questions are weighted by domain — higher-weight domains appear more on your actual exam.

Are these the actual 010-160 exam questions?

No. These are original exam-style practice questions written against the official LPI 010-160 exam objectives. They are not copied from the real exam. Courseiva focuses on genuine understanding, not memorisation of braindumps.

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010-160 Exam Questions and Answers

30 real exam-style questions organised by domain, each with the correct answer highlighted and a plain-English explanation of why it's right — and why the others are wrong.

40 exam questions

60 min time limit

5 exam domains

Overview Domain Blueprint Study Guide All QuestionsSample by Domain

1. Security And File Permissions 2. Finding Your Way ON A Linux System 3. The Power OF The Command Line 4. The Linux Operating System 5. The Linux Community And A Career IN Open Source

Domain 1: Security And File Permissions

All Security And File Permissions questions

usermod -aG developers

chgrp developers /data

chmod g+s /data

chmod 1777 /data

You want to change the primary group of an existing user named 'bob' to 'staff'. Which command should you use?

groupmod -n staff bob

chgrp staff bob

usermod -g staff bob

usermod -G staff bob

A system administrator needs to identify the numerical ID (UID) of the user 'jdoe'. Which file should be checked?

/etc/shadow

/etc/profile

/etc/passwd

/etc/group

A user's account has been compromised. Which command is the most effective way to lock the user account immediately while preserving their files?

usermod -L jdoe

userdel jdoe

killall -u jdoe

chsh -s /bin/false jdoe

Which permission bit must be set on a directory to allow a user to enter the directory and access files within it?

Write (w)

Execute (x)

Sticky bit

Read (r)

You are configuring a temporary directory where multiple users save files. To ensure that users can only delete their own files and not files created by others, what must you set?

chown root /tmp/shared

chmod 777 /tmp/shared

umask 077

chmod +t /tmp/shared

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All Finding Your Way ON A Linux System questions

Domain 2: Finding Your Way ON A Linux System

You want to delete a directory named 'temp_backup' that contains several files. Which command will successfully remove it and its contents?

rm -r temp_backup

rm temp_backup

rmdir temp_backup

rm -f temp_backup

To navigate from your current directory to your home directory regardless of your current location, which command is most efficient?

cd ..

cd ~

cd /

cd /home

Which of the following commands is used to create an empty file or update the timestamp of an existing file?

touch

mkdir

You are copying a directory named 'source' to 'destination' and want to ensure all subdirectories and file attributes are preserved. Which flag is essential?

cp -a

cp -p

cp -v

cp -r

You are using the 'less' command to view a large log file. Which key do you press to search forward for a specific string?

You need to search for a specific command description within the manual pages using a keyword. Which command should you use?

man -s

man -f

man -k

help

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All The Power OF The Command Line questions

Domain 3: The Power OF The Command Line

You want to find all occurrences of the string 'ERROR' within the 'syslog' file. Which command is most appropriate?

cat 'ERROR' syslog

find 'ERROR' syslog

grep 'ERROR' syslog

sed 'ERROR' syslog

Which command is used to display the current working directory in the terminal?

pwd

dir

You need to display the contents of a file named 'config.txt' directly to your terminal screen. Which command should you use?

head config.txt

cat config.txt

echo config.txt

grep config.txt

You wish to send the output of the 'ls -l' command directly into a file named 'dirlist.txt', overwriting any existing content. Which operator should you use?

ls -l > dirlist.txt

ls -l | dirlist.txt

ls -l >> dirlist.txt

ls -l < dirlist.txt

You want to replace every occurrence of 'old' with 'new' in the file 'data.txt' and view the result in the terminal. Which command achieves this?

sed 's/old/new/g' data.txt

sed 's/old/new/' data.txt

grep 's/old/new/g' data.txt

sed 'r/old/new/g' data.txt

You need to set an environment variable named 'MYVAR' to 'hello' so that it is available to child processes. Which command is correct?

set MYVAR=hello

MYVAR=hello

env MYVAR=hello

export MYVAR=hello

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Domain 4: The Linux Operating System

An administrator wants to view the current system load and active processes. Which utility is the most appropriate for a real-time monitor?

df -T

ps aux

cat /proc/cpuinfo

top

You are managing a Linux server and need to confirm the IP address assigned to the eth0 interface. Which command is most appropriate on modern distributions?

ifconfig

ip addr

route -n

netstat -rn

A technician needs to identify the amount of RAM installed in a server without opening the chassis. Which command provides this information from the command line?

uptime

lsblk

free -m

df -h

You have added a new hard drive to your Linux server, but the system does not automatically recognize the device. What is the first step you should take to verify if the kernel detects the hardware?

Reinstall the operating system.

Examine the output of dmesg.

Run the top command.

Edit the /etc/fstab file.

A small business owner wants to implement a server that allows for long-term support and stability for critical financial applications. Which distribution strategy should they prioritize?

Choosing a distribution that offers an LTS version with a long support lifecycle.

Using a desktop-focused distribution for ease of installation.

Compiling the kernel from source to match the specific hardware.

Selecting a rolling release distribution for frequent kernel updates.

Which command is used to display the current directory path in the terminal?

dir

pwd

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All The Linux Community And A Career IN Open Source questions

Domain 5: The Linux Community And A Career IN Open Source

Which of the following describes the core philosophy of 'Open Source' as defined by the Open Source Initiative?

The source code must be available for modification and redistribution.

The software must be provided for free without any charge.

The code must be written in C or C++.

The software must only be used for non-profit purposes.

A Linux administrator needs to determine if their distribution is based on Debian or RHEL. Which command or path is most indicative of this family?

Checking for the presence of the 'systemd' binary.

Checking for the existence of /etc/debian_version.

Running the 'uname -a' command.

Checking for the existence of /etc/sysconfig.

AGPL

GPLv3

MIT

Creative Commons Attribution-ShareAlike

When considering a career in Linux system administration, which certification path demonstrates proficiency in managing system-level services and security across diverse distributions?

LPIC-1: Linux Administrator

AWS Certified SysOps Administrator

Red Hat Certified System Administrator (RHCSA)

Cisco Certified Network Associate (CCNA)

Your company is considering moving from proprietary software to open source solutions. Which aspect of the GPL license is most restrictive regarding the distribution of modified code?

You must contribute all modifications back to the original project maintainer.

You must release the source code of any derivative works if you distribute the binaries.

You are not allowed to modify the source code for internal business use.

You are forbidden from selling any software that uses GPL code.

An administrator is comparing package management systems. Which tool is primarily used on RHEL-based distributions for resolving dependencies and downloading packages?

DNF

Pacman

Portage

APT

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