Linux Online Test

Q: What are the main Linux tests?

We offer various Linux-related tests: Linux Online Test AWS DevOps Test (AWS, Linux, Python) Azure DevOps Test (Azure, Linux, Python) Shell Online Assessment Test .

The Linux Online Test uses scenario-based MCQs to evaluate candidates on their knowledge of Linux operating system, including their proficiency in using Linux commands, file system, networking, shell scripting, and Linux administration. The test aims to evaluate a candidate's ability to work with Linux operating system efficiently and effectively and design and maintain Linux-based systems.

Covered skills:

Linux command line
File system management
Process management
Networking
Security
Package management
Shell scripting

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About the Linux Test

The Linux Online Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates at the first step of the hiring process.

The test screens for the following skills that hiring managers look for in candidates:

Ability to effectively navigate and utilize the Linux command line
Proficiency in managing file systems on Linux
Ability to manage processes efficiently on Linux
Understanding of networking concepts and commands in Linux
Knowledge of security measures and practices in Linux
Proficiency in package management on Linux
Ability to write shell scripts for automation tasks
Capability to troubleshoot and resolve system issues on Linux

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Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

How we design questions

These are just a small sample from our library of 15,000+ questions. The actual questions on this Linux Online Test will be non-googleable.

🧐 Question
Medium Debugging Issues Environment Variables Debugging System Administration Command Line Interface	Solve
You are working on a Linux system and have recently installed a new program named myprogram. The executable is located in /opt/myprogram/bin/. You want to be able to run this program from any directory in your shell without specifying the full path. You executed the following command: export PATH="/opt/myprogram/bin" However, when you try to run the program using myprogram, you get the following error message: -bash: myprogram: command not found Which of the following commands can fix this issue and allow you to run the program? A: export PATH=$PATH:/opt/myprogram/bin/ B: export PATH="/opt/myprogram:$PATH" C: export PATH="/opt/myprogram/bin:$PATH" D: ln -s /opt/myprogram/bin/myprogram /usr/local/bin/myprogram
Easy File Structure and Navigation Files Basic Commands File System Management Directory Structure Manipulation	Solve
Consider the following directory structure: You start at /home/user and execute the following commands: What will be the resulting directory structure?
Medium Fork mellow yellow	Solve
How many times will the following code will print "Mellow Yellow"?
Medium Remote server connection SSH Ssh Port Forwarding	Solve
Our software engineering intern, Wu is looking to use port 4545 on localhost to connect to a remote server called woot.bananas.com on port 80. Which command would you recommend for this?
Easy Commands Unix Commands String Manipulation	Solve
Which of the following unix commands change the case of first three lines of file “classified” from lowercase to uppercase
Easy Expressions	Solve
What does this shell script output?
Easy Loops Conditional Logic Looping	Solve
What are fourth and sixth lines output by this script:

	🧐 Question	🔧 Skill
	Medium Debugging Issues Environment Variables Debugging System Administration Command Line Interface	2 mins Linux	Solve
You are working on a Linux system and have recently installed a new program named myprogram. The executable is located in /opt/myprogram/bin/. You want to be able to run this program from any directory in your shell without specifying the full path. You executed the following command: export PATH="/opt/myprogram/bin" However, when you try to run the program using myprogram, you get the following error message: -bash: myprogram: command not found Which of the following commands can fix this issue and allow you to run the program? A: export PATH=$PATH:/opt/myprogram/bin/ B: export PATH="/opt/myprogram:$PATH" C: export PATH="/opt/myprogram/bin:$PATH" D: ln -s /opt/myprogram/bin/myprogram /usr/local/bin/myprogram
	Easy File Structure and Navigation Files Basic Commands File System Management Directory Structure Manipulation	2 mins Linux	Solve
Consider the following directory structure: You start at /home/user and execute the following commands: What will be the resulting directory structure?
	Medium Fork mellow yellow	2 mins Linux	Solve
How many times will the following code will print "Mellow Yellow"?
	Medium Remote server connection SSH Ssh Port Forwarding	2 mins Linux	Solve
Our software engineering intern, Wu is looking to use port 4545 on localhost to connect to a remote server called woot.bananas.com on port 80. Which command would you recommend for this?
	Easy Commands Unix Commands String Manipulation	2 mins Shell Scripting	Solve
Which of the following unix commands change the case of first three lines of file “classified” from lowercase to uppercase
	Easy Expressions	2 mins Shell Scripting	Solve
What does this shell script output?
	Easy Loops Conditional Logic Looping	2 mins Shell Scripting	Solve
What are fourth and sixth lines output by this script:

	🧐 Question	🔧 Skill	💪 Difficulty	⌛ Time
	Debugging Issues Environment Variables Debugging System Administration Command Line Interface	Linux	Medium	2 mins	Solve
You are working on a Linux system and have recently installed a new program named myprogram. The executable is located in /opt/myprogram/bin/. You want to be able to run this program from any directory in your shell without specifying the full path. You executed the following command: export PATH="/opt/myprogram/bin" However, when you try to run the program using myprogram, you get the following error message: -bash: myprogram: command not found Which of the following commands can fix this issue and allow you to run the program? A: export PATH=$PATH:/opt/myprogram/bin/ B: export PATH="/opt/myprogram:$PATH" C: export PATH="/opt/myprogram/bin:$PATH" D: ln -s /opt/myprogram/bin/myprogram /usr/local/bin/myprogram
	File Structure and Navigation Files Basic Commands File System Management Directory Structure Manipulation	Linux	Easy	2 mins	Solve
Consider the following directory structure: You start at /home/user and execute the following commands: What will be the resulting directory structure?
	Fork mellow yellow	Linux	Medium	2 mins	Solve
How many times will the following code will print "Mellow Yellow"?
	Remote server connection SSH Ssh Port Forwarding	Linux	Medium	2 mins	Solve
Our software engineering intern, Wu is looking to use port 4545 on localhost to connect to a remote server called woot.bananas.com on port 80. Which command would you recommend for this?
	Commands Unix Commands String Manipulation	Shell Scripting	Easy	2 mins	Solve
Which of the following unix commands change the case of first three lines of file “classified” from lowercase to uppercase
	Expressions	Shell Scripting	Easy	2 mins	Solve
What does this shell script output?
	Loops Conditional Logic Looping	Shell Scripting	Easy	2 mins	Solve
What are fourth and sixth lines output by this script:

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Why you should use Pre-employment Linux Online Test?

The Linux Online Test makes use of scenario-based questions to test for on-the-job skills as opposed to theoretical knowledge, ensuring that candidates who do well on this screening test have the relavant skills. The questions are designed to covered following on-the-job aspects:

Demonstrated proficiency in Linux command line
Extensive experience in managing the file system in Linux
In-depth knowledge of process management in Linux
Strong understanding of networking concepts in Linux
Proven expertise in implementing security measures in Linux
Proficient in package management in Linux
Ability to write efficient shell scripts in Linux
Solid understanding of basic Linux system administration tasks
Experience in troubleshooting and resolving Linux-related issues
Familiarity with Linux system monitoring and performance tuning

Once the test is sent to a candidate, the candidate receives a link in email to take the test. For each candidate, you will receive a detailed report with skills breakdown and benchmarks to shortlist the top candidates from your pool.

What topics are covered in the Linux Online Test?

Linux command line: The Linux command line refers to the text-based interface used to interact with the Linux operating system. It allows users to execute various commands, manage files and directories, perform system configurations, and automate tasks. Measuring this skill in the test assesses the candidate's ability to navigate and utilize the powerful command line interface in a Linux environment.

File system management: File system management involves the organization and manipulation of files and directories in a computer system. In the context of Linux, it includes creating, deleting, copying, moving, and modifying files and directories, as well as setting permissions and managing disk usage. This skill is measured in the test to evaluate the candidate's proficiency in handling file operations and effectively managing the file system in a Linux environment.

Process management: Process management in Linux refers to the control and monitoring of running processes. It encompasses tasks such as starting, stopping, pausing, and prioritizing processes, as well as monitoring their resource usage. Measuring this skill helps gauge the candidate's understanding of how processes work in Linux and their ability to efficiently manage and troubleshoot them.

Networking: Networking in the context of this test involves configuring network interfaces, setting up network connections, troubleshooting network issues, and managing network services in a Linux environment. This skill is measured to assess the candidate's knowledge and expertise in network configuration and administration, which is crucial for maintaining connectivity and ensuring smooth communication between systems.

Security: Security in Linux encompasses various measures and practices aimed at protecting the system from unauthorized access, data breaches, and other security threats. It includes tasks such as user authentication, authorization, file permissions, firewall setup, and vulnerability management. Measuring this skill enables recruiters to evaluate the candidate's understanding of Linux security principles and their ability to implement secure configurations.

Package management: Package management involves the installation, update, and removal of software packages in a Linux system. It includes using package managers like APT or YUM to search for and install software from repositories, as well as resolving dependencies and managing software versions. This skill is measured in the test to assess the candidate's familiarity with package management tools and their ability to effectively manage software installations and updates.

Shell scripting: Shell scripting refers to writing scripts or programs in shell languages like Bash to automate repetitive tasks, perform system configurations, and create complex workflows. It involves using control structures, variables, loops, and functions to execute commands and manipulate data. Measuring this skill helps evaluate the candidate's ability to write efficient and maintainable shell scripts, which are essential for automating tasks and optimizing Linux system administration.

Full list of covered topics

The actual topics of the questions in the final test will depend on your job description and requirements. However, here's a list of topics you can expect the questions for Linux Online Test to be based on.

Basic Linux commands

File permissions

Managing directories

Handling files in Linux

Shell environment variables

Linux processes and job control

Networking configuration in Linux

Firewalls and security in Linux

Package installation and management

Linux user administration

Shell scripting basics

Regular expressions

Text processing in Linux

Process monitoring and management

Socket programming in Linux

System logs and troubleshooting

Backup and restore

Device management in Linux

System services and daemons

Linux boot process and runlevels

Linux storage management

Disk partitioning

RAID and LVM

Kernel modules and drivers

Remote administration

SSH and SSH keys

Linux file systems

Stream redirection and pipelines

Environment variables and scripting

Managing cron jobs

Package repositories and updates

Creating and managing users and groups

Process scheduling

Network protocols and services

Network troubleshooting

Securing network connections

Authentication and authorization

Network file systems

Managing network interfaces

Creating and managing filesystems

Filesystem permissions and ownership

Filesystem maintenance and repair

Archiving and compressing files

System resource monitoring

System performance optimization

Managing shared libraries

Linux system initialization

Systemd service management

Kernel configuration and tuning

Bash scripting

Scripting control structures

Scripting functions

Debugging shell scripts

Scripting best practices

Error handling in shell scripts

What roles can I use the Linux Online Test for?

DevOps Engineer
Linux System Administrator
Network Administrator
Security Analyst
System Engineer

How is the Linux Online Test customized for senior candidates?

For intermediate/ experienced candidates, we customize the assessment questions to include advanced topics and increase the difficulty level of the questions. This might include adding questions on topics like

Knowledge of automation tools and techniques in Linux
Proficient in managing user accounts and permissions in Linux
Deep understanding of Linux kernel and system internals
Experience in configuring and managing Linux servers
Ability to optimize and secure Linux-based web applications
Knowledge of Linux networking protocols and services
Proficient in implementing and managing Linux firewalls
Strong understanding of Linux virtualization technologies
Experience in deploying and managing enterprise-grade Linux systems
Knowledge of containerization technologies in Linux

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Have questions about the Linux Hiring Test?

What is Linux Online Test?

The Linux Online Test is designed to assess candidates' proficiency in various Linux skills. It evaluates their knowledge in command line, file system, process management, networking, security, package management, and shell scripting. This test is particularly useful for recruiters looking to hire for roles requiring Linux expertise.

Can I combine the Linux Online Test with Shell questions?

Yes, recruiters can request a custom test that includes Linux and Shell scripting questions. Check out our Shell Online Assessment Test for more details on how we assess shell scripting skills.

What topics are evaluated in the Linux Online Test?

The Linux Online Test evaluates skills in command line, file system management, process management, networking, security, package management, and shell scripting.

How to use the Linux Online Test in my hiring process?

The Linux Online Test can be used as a pre-screening tool at the beginning of your recruitment process. You can add the test link to your job post or directly invite candidates via email. This helps in identifying skilled candidates early on.

What are the main Linux tests?

We offer various Linux-related tests:

Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify. Here's a quick guide on how you can request a custom test.

Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

Non-googleable questions
IP proctoring
Screen proctoring
Web proctoring
Webcam proctoring
Plagiarism detection
Secure browser
Copy paste protection

Read more about the proctoring features.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. A skills assessment is optimized to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 55%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

What is the cost of using this test?

You can check out our pricing plans.

Can I get a free trial?

Yes, you can sign up for free and preview this test.

I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

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Along with scorecards that report the performance of the candidate in detail, you also receive a comparative analysis against the company average and industry standards.

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