Memory Partition Techniques

Question 1

The main memory is divided into a number of static partitions at systems generation time, wherein a process may be loaded into a partition of equal or greater size. Nowadays, the used of fixed partitioning is uncommon in the industry.

Answer 1

Fixed Partitioning

Question 2

The partitions are created dynamically, wherein each process is loaded into a partition of exactly the same size as the process.

Answer 2

Dynamic Partitioning

Question 3

Three (3) possible placement algorithms that can be considered in implementing dynamic partitioning

Answer 3

• Best-fit
• First-fit
• Next-fit

Question 4

This chooses the block that is closest to the requested size

Answer 4

Best-fit

Question 5

This scans the memory from the beginning and chooses the first available block that is large enough to cater the process.

Answer 5

First-fit

Question 6

This scans the memory from the location of the last placement and chooses the next available block that is large enough to cater to the process.

Answer 6

Next-fit

Question 7

The memory is divided into a number of equally sized frames, which each process is divided into a number of equally sized pages of the same length as the frames.

Then, a process is loaded by adding all of its pages into available frames.

Answer 7

Simple Paging

Question 8

Each process is divided into a number of segments, where in a process is loaded by adding all of its segments into dynamic partitions.

Answer 8

Simple Segmentation