Which term describes an adjustable memory area used to store objects and support dynamic memory allocation?

Which term describes an adjustable memory area used to store objects and support dynamic memory allocation?

• A. Memory Stack
• B. Cache
• C. Memory Heap
• D. Register File

Answer: (C)

The heap is the adjustable area of memory used for dynamic memory allocation. It’s where objects live when their lifetimes aren’t known at compile time, so you allocate them at run time (for example, with malloc or new) and release them when they’re no longer needed. The heap can grow or shrink as needed, unlike the stack, which is tied to function calls and has a fixed structure. Because memory management on the heap is handled at runtime, it supports storing objects with varying lifetimes, but it also introduces overhead and potential fragmentation. For contrast: the stack holds function call frames and automatic local variables in a last-in, first-out order and isn’t intended for dynamically sized lifetimes; a cache is a fast storage layer for speeding up memory access and isn’t used as a general object store; and the register file is a small set of CPU registers used for fast immediate computations, not for dynamic allocation.

The heap is the adjustable area of memory used for dynamic memory allocation. It’s where objects live when their lifetimes aren’t known at compile time, so you allocate them at run time (for example, with malloc or new) and release them when they’re no longer needed. The heap can grow or shrink as needed, unlike the stack, which is tied to function calls and has a fixed structure. Because memory management on the heap is handled at runtime, it supports storing objects with varying lifetimes, but it also introduces overhead and potential fragmentation.

For contrast: the stack holds function call frames and automatic local variables in a last-in, first-out order and isn’t intended for dynamically sized lifetimes; a cache is a fast storage layer for speeding up memory access and isn’t used as a general object store; and the register file is a small set of CPU registers used for fast immediate computations, not for dynamic allocation.