Use the first-fit algorithm… professional 2015

Job list:

Job Number

Memory requested

Memory block list:

Memory Block

Memory block size

Job A

690k

Block 1

900k(low-order memory)

Job B

275k

Block 2

910k

Job C

760k

Block 3

300k(high-order memory)

 

A.Use the first-fit algorithm to indicate which memory blocks are allocated to each of the three arriving jobs.

 

B. Use the best-fit algorithm to indicate which memory blocks are allocated to each of the three arriving jobs.

 

 

In a system using the relocatable dynamic partitions scheme, given the following situation (and using decimal form): Job Q is loaded into memory starting at memory location 42k.

 

a.       Calculate the exact starting address for job Q in bytes.

·         

b.      If the memory block has 3K in fragmentation, calculate the size of the memory block.

·         

c.       Is the resulting fragmentation internal or external? Explain your reasoning.

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