Chapter 7-Memory Management LESIONS: T F 1) In a uniprogramming system main memo
ID: 3820235 • Letter: C
Question
Chapter 7-Memory Management LESIONS: T F 1) In a uniprogramming system main memory is divided into two parts. T F 2) The use of unequal size partitions provides a degre of flexibility to fixed partitioning. T F 3) In a m system the available main ultiprogramming memory is not generally shared among a number of processes. T F 4) ms in other processes shouldne be able to reference memory locations in a process for reading or writing purposes without 5) The memory protection requirement must be satisfied by the operating system rather than the processor. T F 6) Any protection mechanism must have the flexibilit to allow several processes to access the same portion of main memory. T F 70 secondary memory provides fast access at relative high cost. T F 8) A hardware mechanism is needed for translating relative addresses to physical main memory addresses at the time ofexecution ofth instruction that contains the reference. T F 9) In a multiprogramming environment the programmer knows at the time ofcoding how much space will be available and where that spa T F overlay programming wastes programmertime. T F )The principal operation of memory management to bring processes into main memory for execution by the processor. T F 2)A physical address is the location ofa word relative to the beginning of the program and the processor translates that into a logical T F 3) The best-fit algorithm is usually the worst T F 4)All segments of all programs must be of the same length. T F 15 Segmentation does not eliminate intermal fragmentation.Explanation / Answer
1. True
In an uniprogramming system, main memory is divided into two parts : one part for the operating system and the other part for the program currently being executed.
2. True
The use of unequal size partitions provides a degree of flexibility to fixed partitioning. A hardware mechanism is needed for translating relative addresses to physical main memory addresses at the time of execution of the instruction that contains the reference.
3. False
In the multi-programming environment, the main memory consisting of 4 process.
4. True
Processes should not be able to reference memory locations in anotherprocess without permission. Impossible to check absolute addresses at compile time because the location of a program in main memory is unpredictable. Must be checked at run time by the processor.
5. True
6. True
7. False
8. False
9. True
10. True
11. True
12. False
13. True
14. False
15. False