C++ (Coding): Debugging Test

Q: What are the main C++ tests?

Here are some key C++ tests: C++ Online Test C++ & Python Test C++ (Coding): Entry Level Algorithms Test C++ (Coding): Intermediate Level Algorithms Test

The C++ (Coding): Debugging Test evaluates a candidate's ability to identify and resolve common issues in C++ code. It covers syntax errors logical errors memory management and the use of debugging tools. The test includes both MCQs and coding questions to assess debugging skills comprehensively.

Covered skills:

Syntax and compilation errors
Logical errors
Debugging tools and techniques
Memory management
Pointer errors and segmentation faults
Stack and heap management
Error handling and exceptions
Algorithmic debugging
Code efficiency and performance
Variable scope and lifetime
Threading and concurrency issues
Undefined behavior

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About the C++ (Coding): Debugging Assessment Test

The C++ (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:

Proficient in identifying and correcting syntax and compilation errors in C++ code.
Able to identify and fix logical errors to ensure the program's intended functionality.
Skilled in utilizing debugging tools and techniques to trace and resolve issues.
Capable of managing memory allocation and deallocation effectively.
Experience in debugging and resolving pointer errors and segmentation faults.
Adept at managing stack and heap memory usage efficiently.
Able to handle errors and exceptions effectively to ensure robust code.
Experienced in debugging algorithms to optimize performance and correctness.
Proficient in enhancing code efficiency and performance.
Skilled in managing variable scope and lifetime to prevent memory leaks.
Competent in addressing threading and concurrency issues.
Knowledgeable about identifying and preventing undefined behavior in C++ code.

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

🧐 Question
Medium Overloading OOPs Code Analysis Logic Understanding	Solve
What will the following C++ code output?
Medium Exceptions Exceptions C++ Code Output Analysis Exception Handling	Solve
What will the following C++ code output?
Easy Namespaces Namespace Management C++ Syntax	Solve
What will the following C++ code output?
Medium Struct Class	Solve
What will the following C++ code output?

	🧐 Question	🔧 Skill
	Medium Overloading OOPs Code Analysis Logic Understanding	2 mins C++	Solve
What will the following C++ code output?
	Medium Exceptions Exceptions C++ Code Output Analysis Exception Handling	2 mins C++	Solve
What will the following C++ code output?
	Easy Namespaces Namespace Management C++ Syntax	2 mins C++	Solve
What will the following C++ code output?
	Medium Struct Class	2 mins C++	Solve
What will the following C++ code output?

	🧐 Question	🔧 Skill	💪 Difficulty	⌛ Time
	Overloading OOPs Code Analysis Logic Understanding	C++	Medium	2 mins	Solve
What will the following C++ code output?
	Exceptions Exceptions C++ Code Output Analysis Exception Handling	C++	Medium	2 mins	Solve
What will the following C++ code output?
	Namespaces Namespace Management C++ Syntax	C++	Easy	2 mins	Solve
What will the following C++ code output?
	Struct Class	C++	Medium	2 mins	Solve
What will the following C++ code output?

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

The C++ (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 syntax and compilation errors
Diagnosing logical errors in code
Using debugging tools effectively
Managing memory allocation and deallocation
Handling pointer errors and segmentation faults
Managing stack and heap memory
Handling exceptions and errors
Debugging algorithms for correctness
Improving code efficiency
Understanding variable scope and lifetime

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 C++ (Coding): Debugging Test?

Syntax and compilation errors: This skill involves identifying and correcting errors that cause a program to fail during compilation. Mastery of syntax rules and compiler diagnostics is essential for building functional C++ programs from source code.

Logical errors: Logical errors occur when a program compiles successfully but behaves incorrectly due to flawed logic. Detecting and fixing these errors is crucial for ensuring the software performs its intended tasks accurately.

Debugging tools and techniques: Familiarity with debugging tools like GDB and techniques such as breakpoints and step-through debugging enables efficient identification and rectification of code issues. This knowledge significantly enhances problem-solving efficiency and code reliability.

Memory management: Effective memory management prevents leaks and overflows, ensuring efficient resource utilization. Proper handling of dynamic memory is essential in avoiding program crashes and undefined behavior.

Pointer errors and segmentation faults: Pointer mismanagement can lead to serious issues like segmentation faults. Understanding and debugging pointer errors is vital to maintain program stability and prevent security vulnerabilities.

Stack and heap management: Correct management of stack and heap memory is crucial to avoid resource exhaustion and memory corruption. This includes understanding scope and lifetime of variables, which ensures optimal performance and reliability.

Error handling and exceptions: Proper error handling using exceptions and error codes ensures robust software that can gracefully recover from unexpected situations. This prevents program crashes and improves user experience.

Algorithmic debugging: Algorithmic debugging requires tracing and correcting errors in logical implementation of algorithms. This skill is essential for ensuring the correctness and efficiency of code.

Code efficiency and performance: Optimizing code for performance is critical in resource-constrained environments. Understanding how to write efficient code improves responsiveness and reduces operational costs.

Variable scope and lifetime: Awareness of variable scope and lifetime prevents hard-to-diagnose bugs related to unintended variable values and memory usage. Proper management is key to maintaining predictable program behavior.

Threading and concurrency issues: Managing concurrency and threading issues such as race conditions and deadlocks is paramount in multi-threaded applications. Skilled handling ensures efficient program execution and stability.

Undefined behavior: Undefined behavior can lead to unpredictable program results and security vulnerabilities. Recognizing and avoiding constructs that cause undefined behavior ensures more reliable and secure code.

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 C++ (Coding): Debugging Test to be based on.

Syntax errors

Compilation errors

Logical errors

Debugging tools

Breakpoints

Watchpoints

GDB

Valgrind

Memory leaks

Pointer arithmetic

Null pointer

Dangling pointer

Segmentation faults

Stack overflow

Heap overflow

Memory management

Smart pointers

RAII

Exception handling

Try-catch

Rethrowing exceptions

Exception specifications

Error codes

Assertions

Algorithm debugging

Code profiling

Performance tuning

Scope rules

Lifetime rules

Static variables

Automatic variables

Dynamic variables

Thread safety

Mutexes

Locks

Race conditions

Deadlocks

Atomic operations

Thread pools

Concurrency patterns

Undefined behavior

Type casting

Data alignment

Alias analysis

Const correctness

Volatile keyword

Inline functions

Preprocessor directives

Template errors

Linker errors

Circular dependencies

Build systems

Compiler flags

Optimization flags

Code readability

Best practices

Code modularity

Unit testing

Integration testing

Boundary testing

Regression testing

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

Software Developer
Systems Programmer
Embedded Systems Engineer
Game Developer
Application Developer
DevOps Engineer
Backend Developer
Firmware Engineer
Robotics Engineer
Data Engineer

How is the C++ (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

Resolving threading and concurrency issues
Identifying and fixing undefined behavior
Optimizing memory usage for performance
Debugging multi-threaded applications
Implementing effective error logging
Profiling code to identify bottlenecks
Ensuring thread safety in code
Handling complex pointer arithmetic
Detecting and fixing race conditions
Using advanced debugging techniques

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

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

What is C++ (Coding): Debugging Test?

The C++ (Coding): Debugging Test is designed to evaluate a candidate's ability to identify and fix errors in C++ code. It is commonly used by recruiters to assess the debugging skills of potential hires in technical roles.

How to use C++ (Coding): Debugging Test in my hiring process?

Use this test as a pre-screening tool at the start of your recruitment process. Add a link to the test in your job post or directly invite candidates via email.

Can I combine C++ (Coding): Debugging Test with C++ & Python test?

Yes, recruiters can request a custom test combining multiple skills. Consider checking our C++ & Python Test for more details.

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

The test covers various C++ debugging skills, including syntax and compilation errors, logical errors, memory management, pointer errors, and multithreading issues.

What are the main C++ tests?

Here are some key C++ 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?

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