Mastering C++: A Comprehensive Quiz Based on 'Thinking in C++'

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Test your C++ skills with our quiz based on Bruce Eckel's 'Thinking in C++'. Dive into object-oriented programming, advanced topics, and fundamentals. Perfect for learners and experts alike. Assess your knowledge and become a C++ master!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

In what situation is dynamic memory allocation necessary?

When the exact number of objects is known at compile-time
When memory should be allocated from the stack
When objects are required for the life of the program
When the number of required objects depends on runtime decisions

The correct answer is: When the number of required objects depends on runtime decisions

Dynamic memory allocation is necessary when the number of required objects depends on runtime decisions. Options A, B, and C are incorrect because they refer to situations where the exact number of objects is known at compile-time or when memory is allocated from the stack. This means that memory can be allocated and released during the compile-time or during the life of the program. However, in dynamic memory allocation, memory is allocated and released during runtime as it is needed. Therefore, dynamic memory allocation is necessary in situations where the number of required objects is determined at runtime.