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Rust Test

Back to Library

Type

Programming Skills

Time

10 minutes

Level

Medium

Questions

10

About the Test

This Rust test measures a candidate’s software development ability in Rust and reading Rust code written by others. Its primary goals are performance and safety.

Rust is a coding language that allows you to create quicker and more dependable applications. Rust aids in the creation of safe concurrent programming. Despite being syntactically identical to C++, it outperforms C++ in memory fault management and concurrent programming areas.

Rust is proven to be a useful tool for big teams of developers with diverse degrees of systems programming skills. Rust is a low-level, statically-typed programming language that is also considered a multi-paradigm. Rust is intended for students and people interested in learning about system ideas. Many individuals have learned about subjects such as operating system development by using Rust.

Rust is for anyone who wishes to contribute to the development of the Rust programming language, community, developer tools, and libraries. Rust is a language for those who want their programming to be fast and stable. We mean the speed of the programs you can write with Rust as well as the speed at which Rust allows you to write them.

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Skills Measured

  • Thread Pools and Worker
  • Enums and Pattern Matching
  • OOPs concepts
  • Generic Structs

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1

Thread Pools and Worker

Rust provides support for concurrent programming through the use of threads. A thread pool is a group of worker threads that can be used to execute tasks concurrently. A worker is an individual thread in a thread pool.

2

Enums and Pattern Matching

Enums are a type of data structure in Rust that allows a value to be one of a fixed set of values. Pattern matching is a way to match and extract values from data structures in Rust, including enums.

3

OOPs concepts

Rust supports object-oriented programming (OOP) concepts such as encapsulation, inheritance, and polymorphism. Rust also has a feature called “traits,” which allows you to define behavior that can be shared across multiple types.

4

Generic Structs

A generic struct is a struct in Rust that can be parameterized over one or more types. This allows you to define a struct that can be used with different types without having to create separate structs for each type. Generic structs can be useful for implementing data structures and other reusable components that can work with multiple types.

The test is created by a subject-matter expert

Testlify’s skill tests are designed by experienced SMEs (subject matter experts). We evaluate these experts based on specific metrics such as expertise, capability, and their market reputation. Prior to being published, each skill test is peer-reviewed by other experts and then calibrated based on insights derived from a significant number of test-takers who are well-versed in that skill area. Our inherent feedback systems and built-in algorithms enable our SMEs to refine our tests continually.

View sample score cards

Top five hard skills interview questions for Rust

1. Can you explain the difference between a trait and an abstract class in Rust?
Why this Matters?

Understanding the difference between a trait and an abstract class is fundamental to Rust programming, and will demonstrate a deep understanding of Rust’s unique features.

What to listen for?

Listen for the candidate’s ability to explain the difference between a trait and an abstract class, and how they would use each in Rust.

2. Can you walk me through how to implement a thread-safe singleton pattern in Rust?
Why this Matters?

Implementing a thread-safe singleton pattern in Rust is a common interview question, and is important for demonstrating a deep understanding of Rust’s concurrency features.

What to listen for?

Listen for the candidate’s ability to explain how to implement a thread-safe singleton pattern in Rust, and their understanding of Rust’s concurrency features, such as mutexes and atomics.

3. What is a lifetime in Rust, and how does it relate to memory management?
Why this Matters?

Lifetimes are a unique feature of Rust that are essential for ensuring memory safety, and understanding lifetimes is critical for writing safe and performant Rust code.

What to listen for?

Listen for the candidate’s ability to explain what a lifetime is, how lifetimes relate to memory management, and how to use lifetimes to ensure memory safety in Rust.

4. How would you implement a binary search algorithm in Rust?
Why this Matters?

Implementing a binary search algorithm is a common programming task, and is important for demonstrating a candidate’s understanding of Rust’s syntax and data structures.

What to listen for?

Listen for the candidate’s ability to explain how to implement a binary search algorithm in Rust, and how they would use Rust’s syntax and data structures to optimize the algorithm.

5. What is Rust’s ownership model, and how does it differ from other programming languages?
Why this Matters?

Rust’s ownership model is a unique feature of the language, and understanding it is essential for writing safe and performant Rust code.

What to listen for?

Listen for the candidate’s ability to explain Rust’s ownership model, how it differs from other programming languages, and how to use it to write safe and performant Rust code.

Frequently Asked Questions for Rust

A Rust assessment is a test or evaluation of a person’s knowledge and skills related to Rust. This assessment is used to evaluate a person’s ability to design and implement solutions using the programming language, Rust.

A Rust assessment is used by technical recruiters to evaluate a candidate’s ability to troubleshoot issues with systems based on the Rust programming language, as well as their understanding of the capabilities and limitations of Rust.

  • Junior Embedded System Engineer
  • Backend Developer
  • Web Developer
  • Rust Developer
  • Rust Programmer
  • Rust on Rails Developer
  • Software Engineer – Rust on Rails
  • Rust Engineer
  • Systems Programmer
  • Embedded Developer

  • Thread Pools and Worker
  • Enums and Pattern Matching
  • OOPs concepts
  • Generic Structs

Some advantages of using Rust include:

  • Safety: Rust is designed to be a safe programming language, with a focus on preventing common programming errors such as null or dangling pointer references.
  • Performance: Rust is known for its high performance, with the ability to generate code that is competitive with C and C++.

Frequently Asked Questions (FAQs)

Want to know more about Testlify? Here are answers to the most commonly asked questions about our company.

These are ready-made tests, existing in our test library, created by subject matter experts. We have 200+ such skills tests covering various skills from programming skills to DevOps, including Aptitude and Personality testing.

You can go to the ‘Test Library’ tab and search for tests from the Job Role or Test Type drop-down menu.

Currently, we do not offer any sample tests. However, when you select a test, there would be a few practice questions before the start of the actual test, which would give you a fair idea of how the entire test would look.

Our tests typically take between 25-30 minutes to complete.

In case you need to test for a unique skill-set or specialized experience, you can add your own questions and customize the test to suit your requirements.

We’ve put a lot of effort into ensuring a conducive test environment. A stable internet connection, an internet browser with cookies and Java-Script enabled is all that is required!
However, for a smooth test-taking process, we recommend the following browsers:
– Google Chrome
– Internet Expl
– Mozilla Firefox

Yes, our tests are compatible with almost all modern mobile devices (including tablets) that have a webcam installed.

Yes, our tests are EEOC (Equal Employment Opportunity Commission) compliant and are whetted by subject matter experts, thus having high reliability (test consistency) and validity (accuracy of the test).

Yes! We integrate with popular recruiting tools such as Greenhouse, Lever, GoodTime, and many more.

We are GDPR compliant and take data security very seriously. You have complete ownership of your data. All your data is safe and secure, and we do not expose it to any third party.

Testlify is an excellent tool for assessing candidates’ soft and hard skills. The founder and customer success team were helpful during onboarding and demonstrated a commitment to continuously improving the platform.
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Founder, ExpHire
Testlify’s integration with ATS makes it simple to incorporate into recruitment processes. Customizable test suites, open-ended questions, and qualifying questions streamline the candidate assessment process and improve collaboration with hiring managers. 
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 Founder, White
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Meir Shachar
CEO at PowerLinx
With Testlify, we were able to optimize our initial screening process by upwards of 75%.
We saved a tremendous amount
Gary E. Benedik
President, Arch Advisory Group
Testlify has revolutionized our hiring process by streamlining the screening stage. It has saved us countless hours by allowing us to shortlist the right candidates.
Vipin Kashyap
CEO at Sookshum Labs

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