Multiple choice

Interfaces make it ____ to replace the implementation of a layer.

  1. harder

  2. simpler

  3. difficult

  4. none of these

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Interfaces define the boundary and the set of operations available between adjacent layers. By standardizing the interface, the internal implementation of a layer can be changed or replaced without affecting the other layers, making system maintenance simpler.