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About the test:

The Python Linux Online Test uses scenario-based MCQs to evaluate candidates on their proficiency in working with both Python and Linux, two widely used technologies in software development and IT operations. The test assesses candidates' ability to write Python code, use Python libraries and frameworks, and work with Linux operating systems, commands, and tools.

Covered skills:

  • Python Basics
  • Python Data Structures
  • Shell Scripting
  • Python OOPs
  • Linux Fundamentals
  • Coding

9 reasons why
9 reasons why

Adaface Python & Linux Test is the most accurate way to shortlist Python Developers



Reason #1

Tests for on-the-job skills

The Python & 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:

  • Understanding and implementing Python basics
  • Implementing object-oriented programming concepts in Python
  • Working with various data structures in Python
  • Demonstrating knowledge of Linux fundamentals
  • Writing shell scripts in Linux
  • Solving coding problems
  • Efficiently handling exceptions and errors in Python
Reason #2

No trick questions

no trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

View sample questions

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface
Reason #3

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 10,000+ questions. The actual questions on this Python & Linux Test will be non-googleable.

🧐 Question

Medium

ZeroDivisionError and IndexError
Exceptions
Solve
What will the following Python code output?
 image

Medium

Session
File Handling
Dictionary
Solve
 image
The function high_sess should compute the highest number of events per session of each user in the database by reading a comma-separated value input file of session data. The result should be returned from the function as a dictionary. The first column of each line in the input file is expected to contain the user’s name represented as a string. The second column is expected to contain an integer representing the events in a session. Here is an example input file:
Tony,10
Stark,12
Black,25
Your program should ignore a non-conforming line like this one.
Stark,3
Widow,6
Widow,14
The resulting return value for this file should be the following dictionary: { 'Stark':12, 'Black':25, 'Tony':10, 'Widow':14 }
What should replace the CODE TO FILL line to complete the function?
 image

Medium

Max Code
Arrays
Solve
Below are code lines to create a Python function. Ignoring indentation, what lines should be used and in what order for the following function to be complete:
 image

Medium

Recursive Function
Recursion
Dictionary
Lists
Solve
Consider the following Python code:
 image
In the above code, recursive_search is a function that takes a dictionary (data) and a target key (target) as arguments. It searches for the target key within the dictionary, which could potentially have nested dictionaries and lists as values, and returns the value associated with the target key. If the target key is not found, it returns None.

nested_dict is a dictionary that contains multiple levels of nested dictionaries and lists. The recursive_search function is then called with nested_dict as the data and 'target_key' as the target.

What will the output be after executing the above code?

Medium

Stacking problem
Stack
Linkedlist
Solve
What does the below function ‘fun’ does?
 image
A: Sum of digits of the number passed to fun.
B: Number of digits of the number passed to fun.
C: 0 if the number passed to fun is divisible by 10. 1 otherwise.
D: Sum of all digits number passed to fun except for the last digit.

Medium

Debugging Issues
Environment Variables
Debugging
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
Solve
Consider the following directory structure:
 image
You start at /home/user and execute the following commands:
 image
What will be the resulting directory structure?
 image

Medium

Fork mellow yellow
Solve
How many times will the following code will print "Mellow Yellow"?
 image

Medium

Remote server connection
SSH
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?
 image

Easy

Registration Queue
Logic
Queues
Solve
We want to register students for the next semester. All students have a receipt which shows the amount pending for the previous semester. A positive amount (or zero) represents that the student has paid extra fees, and a negative amount represents that they have pending fees to be paid. The students are in a queue for the registration. We want to arrange the students in a way such that the students who have a positive amount on the receipt get registered first as compared to the students who have a negative amount. We are given a queue in the form of an array containing the pending amount.
For example, if the initial queue is [20, 70, -40, 30, -10], then the final queue will be [20, 70, 30, -40, -10]. Note that the sequence of students should not be changed while arranging them unless required to meet the condition.
⚠️⚠️⚠️ Note:
- The first line of the input is the length of the array. The second line contains all the elements of the array.
- The input is already parsed into an array of "strings" and passed to a function. You will need to convert string to integer/number type inside the function.
- You need to "print" the final result (not return it) to pass the test cases.

For the example discussed above, the input will be:
5
20 70 -40 30 -10

Your code needs to print the following to the standard output:
20 70 30 -40 -10

Medium

Visitors Count
Strings
Logic
Solve
A manager hires a staff member to keep a record of the number of men, women, and children visiting the museum daily. The staff will note W if any women visit, M for men, and C for children. You need to write code that takes the string that represents the visits and prints the count of men, woman and children. The sequencing should be in decreasing order. 
Example:

Input:
WWMMWWCCC

Expected Output: 
4W3C2M

Explanation: 
‘W’ has the highest count, then ‘C’, then ‘M’. 
⚠️⚠️⚠️ Note:
- The input is already parsed and passed to a function.
- You need to "print" the final result (not return it) to pass the test cases.
- If the input is- “MMW”, then the expected output is "2M1W" since there is no ‘C’.
- If any of them have the same count, the output should follow this order - M, W, C.
🧐 Question🔧 Skill

Medium

ZeroDivisionError and IndexError
Exceptions

2 mins

Python
Solve

Medium

Session
File Handling
Dictionary

2 mins

Python
Solve

Medium

Max Code
Arrays

2 mins

Python
Solve

Medium

Recursive Function
Recursion
Dictionary
Lists

3 mins

Python
Solve

Medium

Stacking problem
Stack
Linkedlist

4 mins

Python
Solve

Medium

Debugging Issues
Environment Variables
Debugging

2 mins

Linux
Solve

Easy

File Structure and Navigation
Files
Basic Commands

2 mins

Linux
Solve

Medium

Fork mellow yellow

2 mins

Linux
Solve

Medium

Remote server connection
SSH

2 mins

Linux
Solve

Easy

Registration Queue
Logic
Queues

30 mins

Coding
Solve

Medium

Visitors Count
Strings
Logic

30 mins

Coding
Solve
🧐 Question🔧 Skill💪 Difficulty⌛ Time
ZeroDivisionError and IndexError
Exceptions
Python
Medium2 mins
Solve
Session
File Handling
Dictionary
Python
Medium2 mins
Solve
Max Code
Arrays
Python
Medium2 mins
Solve
Recursive Function
Recursion
Dictionary
Lists
Python
Medium3 mins
Solve
Stacking problem
Stack
Linkedlist
Python
Medium4 mins
Solve
Debugging Issues
Environment Variables
Debugging
Linux
Medium2 mins
Solve
File Structure and Navigation
Files
Basic Commands
Linux
Easy2 mins
Solve
Fork mellow yellow
Linux
Medium2 mins
Solve
Remote server connection
SSH
Linux
Medium2 mins
Solve
Registration Queue
Logic
Queues
Coding
Easy30 minsSolve
Visitors Count
Strings
Logic
Coding
Medium30 minsSolve
Reason #4

1200+ customers in 75 countries

customers in 75 countries
Brandon

With Adaface, we were able to optimise our initial screening process by upwards of 75%, freeing up precious time for both hiring managers and our talent acquisition team alike!


Brandon Lee, Head of People, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment Python & Linux Test in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Science behind Adaface tests
Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the Python & Linux Test from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

invite candidates
Reason #7

Detailed scorecards & benchmarks

Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

test completion rate
Reason #9

Advanced Proctoring


Learn more

About the Python & Linux Assessment Test

Why you should use Pre-employment Python & Linux Online Test?

The Python & Linux 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:

  • Python Basics including syntax and data types
  • Python OOPs concepts such as classes, objects, and inheritance
  • Python Data Structures like lists, dictionaries, and tuples
  • Linux Fundamentals covering commands, file systems, and user management
  • Shell Scripting for automation and task execution
  • Coding skills to solve algorithmic problems
  • Working with Python modules and libraries
  • Understanding and utilizing Python exceptions and errors
  • String manipulation in Python
  • Basic knowledge of regular expressions

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 Python & Linux Online Test?

  • Python Basics

    Python Basics is a skill that involves understanding the fundamental concepts and syntax of the Python programming language. It covers topics such as variables, data types, conditional statements, loops, and basic input/output operations. This skill is measured in the test to assess the candidate's proficiency in the essential building blocks of Python programming.

  • Python OOPs

    Python OOPs refers to Object-Oriented Programming in Python. This skill focuses on concepts such as classes, objects, inheritance, polymorphism, and encapsulation. It is essential to measure this skill to evaluate the candidate's ability to write modular and reusable code using object-oriented principles in Python.

  • Python Data Structures

    Python Data Structures encompass a variety of data types and their associated operations in Python. This skill involves understanding the implementation and usage of data structures such as lists, tuples, dictionaries, sets, and arrays. Measuring this skill helps assess the candidate's proficiency in manipulating and organizing data efficiently in Python.

  • Linux Fundamentals

    Linux Fundamentals involves understanding the basic concepts and commands of the Linux operating system. It covers topics such as file system navigation, file and directory management, user and group management, permissions, and process management. This skill is important to measure as it evaluates the candidate's knowledge and ability to work with the Linux environment, which is commonly used in many software development and system administration roles.

  • Shell Scripting

    Shell Scripting refers to the creation and execution of scripts written in shell languages, such as Bash, on Unix-like operating systems like Linux. This skill involves writing scripts to automate tasks, perform system administration tasks, and manipulate files and data using shell commands. Measuring this skill helps assess the candidate's ability to write efficient and effective scripts to automate repetitive tasks and enhance productivity in a Linux environment.

  • Coding

    Coding is a general skill that encompasses the ability to write clean, efficient, and well-structured code. This skill involves understanding programming concepts, logic, problem-solving skills, and attention to detail. Measuring this skill helps evaluate the candidate's overall coding proficiency and their ability to write robust and maintainable code in the context of Python and Linux development.

  • 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 Python & Linux Test to be based on.

    Variables
    Data types
    Operators
    Control flow
    Functions
    Classes
    Inheritance
    Polymorphism
    Encapsulation
    Lists
    Tuples
    Dictionaries
    Sets
    Strings
    File handling
    Basic Linux commands
    File permissions
    Processes
    Linux file system
    Shell variables
    Conditionals in shell scripting
    Loops in shell scripting
    Functions in shell scripting
    Command substitution
    Regular expressions
    Error handling in Python
    Exception types in Python
    Built-in exceptions
    Input validation
    Unit testing in Python
    Recursion
    Sorting algorithms
    Searching algorithms
    Data serialization
    File manipulation in Python
    Classes and objects in Python
    Constructor and destructor
    Method overriding
    Method overloading
    Static and class methods
    Generators
    Iterators
    Lambda functions
    List comprehensions
    Memory management in Python
    Garbage collection
    Working with modules
    Virtual environments
    Linux directory structure
    Process management in Linux
    Shell scripting techniques
    Regular expression in shell scripting
    Environment variables
    Scripting loops
    Cron jobs
    Linux networking
    Sed and awk
    File permissions in Linux
    Variables and data types in shell scripting
    Command line arguments
    Error handling in shell scripting
    Debugging techniques in Python
    Object serialization in Python
    API integration in Python
    Database connectivity in Python

What roles can I use the Python & Linux Online Test for?

  • Python Developer
  • DevOps Engineer
  • Database Administrator
  • Cloud Architect

How is the Python & 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

  • Advanced Python concepts like decorators and generators
  • Ability to write efficient and optimized code
  • Familiarity with Python unit testing and debugging
  • Managing Linux processes and system resources
  • Networking concepts and commands in Linux
  • Security measures and practices in Linux
  • Experience with Linux system administration
  • Knowledge of Linux scripting languages like BASH
  • Working with system logs and log files in Linux
  • Troubleshooting and resolving system issues in Linux

The coding question for experienced candidates will be of a higher difficulty level to evaluate more hands-on experience.

Singapore government logo

The hiring managers felt that through the technical questions that they asked during the panel interviews, they were able to tell which candidates had better scores, and differentiated with those who did not score as well. They are highly satisfied with the quality of candidates shortlisted with the Adaface screening.


85%
reduction in screening time

Python & Linux Hiring Test FAQs

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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