The garbage collection is necessary _____
A) in each implementation of the directory structure
B) in tree-based directory structure only
C) in acyclic-graph directory structure only
D) in general graph directory structure only

Question

Quizplus · Accepted Answer

Garbage collection is necessary in general graph directory structures because nodes may have multiple parent nodes, and therefore it becomes difficult to determine which nodes are still being referenced and which ones can be deleted.

The Garbage Collection Is Necessary _____