Debugging, Testing & Optimization MCQs

Topic-wise practice questions for Programming (C++ / Java / Python). Test your knowledge, check solutions on demand, and pace your preparation.

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Q11easy
In software testing, what is Boundary Value Analysis?
Q12medium
An application works perfectly for 1 user, but the response time becomes 30 seconds when 1,000 users log in. Which tool should the developer use to find the cause?
Q13easy
What is a "Heisenbug"?
Q14medium
A developer makes a small change to the "Login" logic. Suddenly, the "Checkout" page stops working. Which type of testing would have caught this?
Q15easy
What is the purpose of an Assertion (e.g., assert x > 0) in programming?