7. Given the following information: Job List: Memory Block List: Job Number Memory Requested Memory Block Memory Block Size Job A 57K Block 1 900K (low-order memory) Job B 920K Block 2 910K Job C 50K Block 3 200K Job D 701K Block 4 300K (high-order memory) a. Use the best-fit algorithm to indicate which memory blocks are allocated to each of the three arriving jobs. b. Use the first-fit algorithm to indicate which memory blocks are allocated to each of the three arriving jobs.

answer: internal fragmentation is the difference between the (fixed) size of a memory hole and the data within in that memory. for example, if a 1,024 byte block of memory holds 800 bytes of data, then the 224 bytes difference is considered lost to internal fragmentation.

external fragmentation occurs when the sum of memory fragments is large enough to satisfy a request, but the holes are non-contiguous and the request cannot be satisfied. this can occur when memory is dynamically allocated and freed.

explanation:

answer; i believe the correct answer is (windows server backup); ///good luck