4. Worst-fit is an allocation algorithm that allocates the largest free block to a new job. It is the opposite of the best-fit algorithm. Using the following configuration with jobs arriving in order (Job A, B, C, D) and with blocks shown in order from low order memory to high order memory:

Job List:			Memory Block List:
Job Number	Memory Requested		Memory Block	Memory Block Size
Job A	44K		Block 1	250K
Job B	220K		Block 2	900K
Job C	670K		Block 3	280K
Job D	64K		Block 4	200K
			Block 5	750K

a) Indicate which memory blocks are allocated to each of the arriving jobs.

b) In this chapter we introduced external and internal fragmentation. Explain in your own words which one would be expected in a worst-fit memory allocation scheme