Rust (Coding): Debugging Test

Q: What are the main Coding Debug Tests?

Important Coding Debug Tests include: Python (Coding): Debugging Test JavaScript (Coding): Debugging Test C# (Coding): Debugging Test C (Coding): Debugging Test

The Rust Coding Debugging Test evaluates a candidate's ability to identify and fix errors in Rust programs. It covers topics like compiler errors runtime bugs memory management concurrency issues logic errors and performance optimization with both MCQ and coding questions aimed at assessing practical debugging skills.

Covered skills:

Common Compiler Errors
Run-time Bugs
Memory Management Issues
Concurrency Problems
Logic Errors
Error Handling
Testing Strategies
Debugging Tools
Performance Optimization
Code Readability and Maintainability
Ownership and Borrowing
Lifetimes and References

Get started for free

Preview questions

About the Rust (Coding): Debugging Assessment Test

The Rust (Coding): Debugging 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 identify and resolve common Rust compiler errors, enhancing code quality and compilation success
Skill in diagnosing and fixing run-time bugs, ensuring robust program execution
Proficiency in managing memory-related issues, crucial for Rust's safety guarantees
Capability to detect and resolve concurrency problems, essential for writing efficient parallel code
Aptitude for identifying and correcting logic errors, improving overall program correctness
Expertise in implementing effective error handling strategies, enhancing program reliability
Competence in applying various testing strategies to ensure code functionality and reliability
Familiarity with Rust-specific debugging tools and techniques for efficient problem solving
Skill in optimizing Rust code for better performance, crucial for resource-intensive applications
Ability to write clean, maintainable Rust code, facilitating long-term project sustainability
Proficiency in understanding and applying Rust's ownership and borrowing concepts
Expertise in managing lifetimes and references, fundamental to Rust's memory safety model

1200+ customers in 80 countries

Use Adaface tests trusted by recruitment teams globally. Adaface skill assessments measure on-the-job skills of candidates, providing employers with an accurate tool for screening potential hires.

Get started for free

Preview questions

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 Rust (Coding): Debugging Test will be non-googleable.

🧐 Question
Easy Join Handles Concurrency Thread Synchronization Parallelism	Solve
Review the following two Rust code snippets: Notice the handle.join().unwrap() line added in snippet two. Pick the correct statements: A: Snippet one prints 1 to 5 in the spawned thread and 1 to 3 in the main thread always. B: Snippet one prints 1 to 3 in the main thread but spawned thread might be closed before it prints all the numbers. C: Snippet two prints 1 to 5 in the spawned thread and 1 to 3 in the main thread always. D: Snippet two prints 1 to 3 in the main thread but the spawned thread might be closed before it prints all the numbers.
Medium Mutable Sample Structs Variables and Mutability	Solve
What does the following Rust code print?
Medium Passed Function Closures Understanding-rust-code-behavior	Solve
Review the following code and pick the correct statements: A: The code prints 1223 B: The code prints 1111 C: The code prints 1234 D: The callPassedFunction(passedFunction) on line 7 makes a copy of passedFunction to become the argument of callPassedFunction. The copy gets executed and the x of copy becomes 2, but the original closure still holds a value of 1 for its captured x. E: The callPassedFunction(passedFunction) on line 7 makes a copy of passedFunction to become the argument of callPassedFunction. The copy gets executed and x of the copy and the origin both become 2.

	🧐 Question	🔧 Skill
	Easy Join Handles Concurrency Thread Synchronization Parallelism	2 mins Rust	Solve
Review the following two Rust code snippets: Notice the handle.join().unwrap() line added in snippet two. Pick the correct statements: A: Snippet one prints 1 to 5 in the spawned thread and 1 to 3 in the main thread always. B: Snippet one prints 1 to 3 in the main thread but spawned thread might be closed before it prints all the numbers. C: Snippet two prints 1 to 5 in the spawned thread and 1 to 3 in the main thread always. D: Snippet two prints 1 to 3 in the main thread but the spawned thread might be closed before it prints all the numbers.
	Medium Mutable Sample Structs Variables and Mutability	2 mins Rust	Solve
What does the following Rust code print?
	Medium Passed Function Closures Understanding-rust-code-behavior	2 mins Rust	Solve
Review the following code and pick the correct statements: A: The code prints 1223 B: The code prints 1111 C: The code prints 1234 D: The callPassedFunction(passedFunction) on line 7 makes a copy of passedFunction to become the argument of callPassedFunction. The copy gets executed and the x of copy becomes 2, but the original closure still holds a value of 1 for its captured x. E: The callPassedFunction(passedFunction) on line 7 makes a copy of passedFunction to become the argument of callPassedFunction. The copy gets executed and x of the copy and the origin both become 2.

	🧐 Question	🔧 Skill	💪 Difficulty	⌛ Time
	Join Handles Concurrency Thread Synchronization Parallelism	Rust	Easy	2 mins	Solve
Review the following two Rust code snippets: Notice the handle.join().unwrap() line added in snippet two. Pick the correct statements: A: Snippet one prints 1 to 5 in the spawned thread and 1 to 3 in the main thread always. B: Snippet one prints 1 to 3 in the main thread but spawned thread might be closed before it prints all the numbers. C: Snippet two prints 1 to 5 in the spawned thread and 1 to 3 in the main thread always. D: Snippet two prints 1 to 3 in the main thread but the spawned thread might be closed before it prints all the numbers.
	Mutable Sample Structs Variables and Mutability	Rust	Medium	2 mins	Solve
What does the following Rust code print?
	Passed Function Closures Understanding-rust-code-behavior	Rust	Medium	2 mins	Solve
Review the following code and pick the correct statements: A: The code prints 1223 B: The code prints 1111 C: The code prints 1234 D: The callPassedFunction(passedFunction) on line 7 makes a copy of passedFunction to become the argument of callPassedFunction. The copy gets executed and the x of copy becomes 2, but the original closure still holds a value of 1 for its captured x. E: The callPassedFunction(passedFunction) on line 7 makes a copy of passedFunction to become the argument of callPassedFunction. The copy gets executed and x of the copy and the origin both become 2.

Get started for free

Preview questions

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

It's very easy to share assessments with candidates and for candidates to use. We get good feedback from candidates about completing the tests. Adaface are very responsive and friendly to deal with.

Kirsty Wood, Human Resources, WillyWeather

We were able to close 106 positions in a record time of 45 days! Adaface enables us to conduct aptitude and psychometric assessments seamlessly. My hiring managers have never been happier with the quality of candidates shortlisted.

Amit Kataria, CHRO, Hanu

We evaluated several of their competitors and found Adaface to be the most compelling. Great library of questions that are designed to test for fit rather than memorization of algorithms.

Swayam Narain, CTO, Affable

Why you should use Pre-employment Rust (Coding): Debugging Test?

The Rust (Coding): Debugging 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:

Identifying and resolving common Rust compiler errors
Debugging runtime issues in Rust programs
Managing memory allocation and deallocation in Rust
Resolving concurrency problems in multithreaded Rust code
Detecting and fixing logic errors in Rust algorithms
Implementing proper error handling techniques in Rust
Applying effective testing strategies for Rust code
Utilizing Rust debugging tools and techniques
Optimizing Rust code for improved performance
Enhancing code readability and maintainability in Rust

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 Rust (Coding): Debugging Test?

Common Compiler Errors: These are errors that occur when the Rust compiler fails to build the code, often due to syntax errors or incorrect use of types. Understanding how to identify and resolve these errors is crucial for efficiency and maintaining code quality.

Run-time Bugs: Bugs that occur during the execution of a program rather than at compile time. Detecting and fixing these issues ensures the program performs as expected under all conditions.

Memory Management Issues: These refer to problems related to the allocation, use, and release of memory, often leading to leaks or corruption. Efficiently managing memory is essential for performance and reliability.

Concurrency Problems: Issues that arise when multiple threads or processes run simultaneously, potentially leading to race conditions and deadlocks. Understanding concurrency is vital for building robust, scalable applications.

Logic Errors: Mistakes in the program's logic that cause it to operate incorrectly. Identifying logical flaws is important to ensure the software fulfills its intended purpose.

Error Handling: Mechanisms for managing and responding to errors during program execution. Proper error handling enhances the robustness and user experience of an application.

Testing Strategies: Approaches to verify that the code works as intended, including unit tests and integration tests. Effective testing can prevent bugs before they make it to production.

Debugging Tools: Utilities and techniques used to detect, trace, and fix bugs in software. Proficiency with debugging tools accelerates the troubleshooting process.

Performance Optimization: The practice of improving the speed and efficiency of code execution. Performance optimizations are critical for ensuring the software runs efficiently, even under heavy loads.

Code Readability and Maintainability: The clarity of code and how easy it is to understand, modify, and extend. Readable and maintainable code speeds up development and reduces the chance of future bugs.

Ownership and Borrowing: Principles unique to Rust's memory management model that prevent data races and ensure memory safety. Mastery of these concepts is fundamental to writing efficient and safe Rust code.

Lifetimes and References: Mechanisms that ensure references to data do not outlive the data they point to. Understanding lifetimes and references is essential for writing safe and efficient Rust programs.

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 Rust (Coding): Debugging Test to be based on.

Compiler errors

Type mismatches

Borrow checker

Lifetime issues

Syntax errors

Run-time panics

Array bounds

Integer overflow

Null pointers

Memory leaks

Double free

Use-after-free

Data races

Deadlocks

Race conditions

Atomic operations

Logic bugs

Off-by-one errors

Infinite loops

Error propagation

Result type

Option type

Panic handling

Unit testing

Integration testing

Benchmark testing

Cargo test

Debug assertions

LLDB

GDB

Rust-gdb

Rust-lldb

Profiling

Code optimization

Algorithmic efficiency

Memory optimization

Code formatting

Documentation

Naming conventions

Ownership rules

Borrowing rules

Move semantics

Reference lifetimes

Lifetime annotations

Static lifetimes

Unsafe Rust

Smart pointers

Rc<T>

Arc<T>

RefCell<T>

What roles can I use the Rust (Coding): Debugging Test for?

Rust Developer
Backend Developer
Systems Engineer
Software Engineer
Embedded Systems Developer
Blockchain Developer
DevOps Engineer
Game Developer
Full Stack Developer
Machine Learning Engineer

How is the Rust (Coding): Debugging 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

Implementing advanced ownership and borrowing concepts
Managing complex lifetime scenarios in Rust
Designing and implementing efficient concurrent Rust programs
Optimizing memory usage in large-scale Rust applications
Implementing advanced error handling patterns in Rust
Developing custom debugging tools for Rust projects
Profiling and optimizing Rust code for specific architectures
Implementing zero-cost abstractions in Rust
Designing and implementing safe FFI interfaces in Rust
Optimizing Rust code for embedded systems and constrained environments

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

Preview this test

View sample scorecard

Try the most advanced candidate assessment platform

ChatGPT Protection

Non-googleable Questions

Web Proctoring

IP Proctoring

Webcam Proctoring

MCQ Questions

Coding Questions

Typing Questions

Personality Questions

Custom Questions

Ready-to-use Tests

Custom Tests

Custom Branding

Bulk Invites

Public Links

ATS Integrations

Multiple Question Sets

Custom API integrations

Role-based Access

Priority Support

GDPR Compliance

Screen candidates in 3 easy steps

Pick a test from over 500+ tests

The Adaface test library features 500+ tests to enable you to test candidates on all popular skills- everything from programming languages, software frameworks, devops, logical reasoning, abstract reasoning, critical thinking, fluid intelligence, content marketing, talent acquisition, customer service, accounting, product management, sales and more.

Invite your candidates with 2-clicks

Make informed hiring decisions

Get started for free

Preview questions

Have questions about the Rust (Coding): Debugging Hiring Test?

What is Rust (Coding): Debugging Test?

The Rust (Coding): Debugging Test is designed to assess a candidate's ability to debug Rust code. Recruiters and hiring managers use it to identify skilled Rust developers. It is helpful for evaluating debugging skills in real-world Rust scenarios.

Can I combine the Rust (Coding): Debugging Test with C (Coding): Debugging questions?

Yes, you can request a custom test with multiple skills. To evaluate C debugging skills, you can refer to our C (Coding): Debugging Test for more details.

What topics are evaluated in the Rust (Coding): Debugging Test?

This test covers common compiler errors, run-time bugs, memory management issues, concurrency problems, logic errors, error handling, testing strategies, debugging tools, performance optimization, code readability and maintainability, ownership and borrowing, lifetimes and references.

How to use the Rust (Coding): Debugging Test in my hiring process?

Use this test as a pre-screening tool early in your recruitment. Add a link to the assessment in your job post or invite candidates by email. It helps in identifying the most skilled Rust developers efficiently.

What are the main Coding Debug Tests?

Important Coding Debug Tests include:

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.

View sample scorecard

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.

View sample scorecard