Lesson 079

Static vs Dynamic Memory

Stack · Heap · Allocation

1:00

How programs reserve memory at compile time (static) versus request it at runtime (dynamic) — and the tradeoffs of each.

By the end, you can

  • Explain the difference between static and dynamic memory allocation and when each applies.
  • Label the segments of a process memory map in address order (low to high).
  • Distinguish the stack (automatic, per-call-frame) from static/global memory (Data/BSS, whole-program lifetime).
  • Explain why stack and static allocation are faster than heap allocation.
  • Identify memory leaks, dangling pointers, double-frees, and stack overflow from a description.
  • Apply the known-size/unknown-size rule to decide whether a given data structure should use static or dynamic allocation.
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