Question

Which free space management approach takes advantage of the fact that multiple contiguous blocks may be allocated or freed simultaneously

Select one:
a. linked lists
b. grouping
c. counting
d. space maps

Answer 1

The free space management approach that takes advantage of the fact that multiple contiguous blocks may be allocated or freed simultaneously is grouping.

Step-by-step explanation:

The free space management approach that takes advantage of the fact that multiple contiguous blocks may be allocated or freed simultaneously is grouping.

In grouping, the free space is divided into size classes or groups, and each group contains blocks of similar sizes. When an allocation or deallocation request is made, the system checks if there is a group with a block of the desired size. If there is, the block is allocated or freed. This approach is efficient in terms of searching for free blocks of similar sizes.

For example, if we have a memory pool divided into groups of 4 KB, 8 KB, and 16 KB blocks, and an allocation request for a 12 KB block is made, the system can quickly find the group with 16 KB blocks and allocate a block from there.