Debugging & Error Analysis

Q1. What is debugging?

1. A.Finding and fixing code errors✓ Correct
2. B.Deleting all program files now
3. C.Writing new source code files
4. D.Compiling the program to binary

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Q2. What is syntax error?

1. A.A runtime exception in program
2. B.A logic mistake in the code
3. C.A violation of grammar rules✓ Correct
4. D.A design flaw in architecture

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Q3. What is runtime error?

1. A.Error during code writing phase
2. B.Error during code compilation
3. C.Error during program execution✓ Correct
4. D.Error in the syntax of code

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Q4. What is logical error?

1. A.A syntax mistake in the code
2. B.A missing semicolon in the code
3. C.An error during code compilation
4. D.Runs fine but gives wrong results✓ Correct

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Q5. What is a breakpoint?

1. A.A syntax rule for statements
2. B.A type of error in the code
3. C.Execution pauses for inspection✓ Correct
4. D.A point where code is broken

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Q6. First debugging step?

1. A.Reproduce the error consistently✓ Correct
2. B.Rewrite all the code from scratch
3. C.Ignore the error and move on
4. D.Delete the problematic file now

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Q7. What is print debugging?

1. A.Printing the error log to a file
2. B.Print statements to trace values✓ Correct
3. C.Printing the source code on paper
4. D.Printing the algorithm description

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Q8. What is a stack trace?

1. A.Function call sequence at error✓ Correct
2. B.A variable type declaration
3. C.A stack data structure diagram
4. D.A sorting algorithm for stacks

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Q9. What is an exception?

1. A.A variable declaration statement
2. B.A normal expected program flow
3. C.Event disrupting flow, indicating error✓ Correct
4. D.A design pattern for structure

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Q10. Compiler errors identify?

1. A.Syntax and type error locations✓ Correct
2. B.Runtime errors only in code
3. C.Performance bottlenecks found
4. D.Logic errors in the algorithm

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Q11. What is rubber duck debugging?

1. A.A rubber duck shaped mouse device
2. B.A testing framework for web apps
3. C.A waterfowl-based sorting algorithm
4. D.Explaining code aloud to find errors✓ Correct

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Q12. What is binary search debugging?

1. A.The binary search algorithm itself
2. B.Eliminate half the code each step✓ Correct
3. C.Debugging binary executable files
4. D.Searching binary number patterns

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Q13. What is null pointer exception?

1. A.Accessing a null reference value✓ Correct
2. B.A logic error in computation
3. C.A warning from the compiler
4. D.A syntax error in the code

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Q14. What is off-by-one error?

1. A.Loop iterates one too many or few✓ Correct
2. B.A network connectivity issue seen
3. C.A rounding error in calculations
4. D.A compilation error in the build

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Q15. What is memory leak?

1. A.Physical damage to memory chips
2. B.Allocated memory that is never freed✓ Correct
3. C.A security hack on the system
4. D.Fast access to memory locations

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Q16. What is regression testing?

1. A.The first test ever written for code
2. B.User interface design testing only
3. C.Re-testing after changes are made✓ Correct
4. D.Performance benchmark testing only

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Q17. What is race condition?

1. A.A type of loop in the code
2. B.A competition between two programs
3. C.A fast algorithm execution speed
4. D.Depends on concurrent event timing✓ Correct

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Q18. What is deadlock?

1. A.A locked database table in use
2. B.Processes waiting for each other✓ Correct
3. C.A system crash due to hardware
4. D.An infinite loop in the code

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Q19. What is step-through debugging?

1. A.Running the entire program at once
2. B.Walking through the office halls
3. C.One line at a time in debugger✓ Correct
4. D.Deleting steps from the program

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Q20. What is defensive programming?

1. A.Being defensive about your code
2. B.Avoiding writing any error handlers
3. C.Anticipating and handling errors well✓ Correct
4. D.Programming without any planning

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Q21. What is a Heisenbug?

1. A.A syntax error in the source code
2. B.A bug that changes when observed✓ Correct
3. C.A normal reproducible program bug
4. D.A hardware component malfunction

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Q22. What is static analysis?

1. A.Testing at runtime with real data
2. B.Analyzing code without executing it✓ Correct
3. C.User acceptance testing of the app
4. D.Running the code to find bugs

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Q23. What is dynamic analysis?

1. A.Code review by team members only
2. B.Reading documentation about the code
3. C.Analyzing behavior during execution✓ Correct
4. D.Static code review without running

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Q24. What is buffer overflow?

1. A.Writing beyond allocated memory area✓ Correct
2. B.A database overflowing with data
3. C.A network packet overflow error
4. D.A full disk with no free space

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Q25. What is fault localization?

1. A.Finding faulty hardware components
2. B.Locating the server in a datacenter
3. C.Finding the compiler installation path
4. D.Automatically identifying bug locations✓ Correct

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Q26. What is delta debugging?

1. A.Running multiple programs together
2. B.Using version control for changes
3. C.Minimizing failure-inducing input size✓ Correct
4. D.Making small incremental changes

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Q27. What is a sanitizer?

1. A.A cleaning product for hardware
2. B.A code formatting utility tool
3. C.An antivirus software application
4. D.Runtime tool detecting memory errors✓ Correct

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Q28. What is symbolic execution?

1. A.Using symbols in variable names
2. B.Deploying to production environment
3. C.Symbolic values exploring all paths✓ Correct
4. D.Code review by senior developers

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Q29. What is a Mandelbug?

1. A.A graphical rendering issue seen
2. B.A simple reproducible error found
3. C.A user interface display problem
4. D.Complex chaotic causes, hard to fix✓ Correct

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Q30. What is time-travel debugging?

1. A.Predicting future bugs in advance
2. B.Record execution, step backward✓ Correct
3. C.Debugging legacy system software
4. D.Debugging very old legacy code

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