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Practice Test
Top 50 C++ Interview MCQ
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Q1. Default access in a C++ class is:
Q2. Which enables runtime polymorphism?
Q3. unique_ptr models:
Q4. STL vector provides:
Q5. map is typically implemented as:
Q6. Correct cast for polymorphic downcast:
Q7. RAII frees resources in the:
Q8. std::move is primarily a:
Q9. Pure virtual syntax uses:
Q10. Header for std::sort:
Q11. weak_ptr is used to:
Q12. Range-based for needs:
Q13. Operator that cannot be overloaded:
Q14. Best null pointer literal:
Q15. unordered_map average lookup:
Q16. Abstract class has:
Q17. Friend functions are:
Q18. delete[] must pair with:
Q19. std::optional represents:
Q20. Lambda [=] captures:
Q21. Virtual inheritance solves:
Q22. iostream for console I/O is:
Q23. Template specialization customizes:
Q24. const member function can:
Q25. stack adapter default container:
Q26. priority_queue is by default a:
Q27. string_view owns memory?
Q28. explicit constructor prevents:
Q29. Override keyword helps catch:
Q30. Which is associative ordered?
Q31. catch exceptions preferably by:
Q32. make_shared is preferred because:
Q33. Function overloading is resolved at:
Q34. Bidirectional iterators support:
Q35. std::pair is in header:
Q36. Object slicing happens when:
Q37. chrono clocks measure:
Q38. enable_if is used in:
Q39. forward_list is:
Q40. Best practice for ownership today:
Q41. namespace std contains:
Q42. Multimap allows:
Q43. Binary search algorithms need:
Q44. Type trait is_integral checks:
Q45. Manipulator setw affects:
Q46. Move constructor typically takes:
Q47. final on a class means:
Q48. Container that invalidates refs on many inserts at front:
