One technique for overcoming external fragmentation is __________ .Select one:A.compactionB.loadingC.relocationD.partitioning

To determine the technique for overcoming external fragmentation, let's analyze the options provided:

1. Compaction: This is the process of rearranging memory contents to make larger contiguous blocks of free memory. It is specifically designed to reduce external fragmentation.

2. Loading: This refers to the process of placing programs into memory for execution and does not directly relate to managing fragmentation.

3. Relocation: While relocation can aid in memory management, it primarily refers to the ability to move programs or data in memory and does not specifically target external fragmentation.

4. Partitioning: This involves dividing memory into sections or partitions but does not directly solve the problem of external fragmentation.

Final Answer

The correct option is A. compaction. Compaction effectively reduces external fragmentation by consolidating free memory into larger blocks.