In this section of Operating System Main Memory – Memory Management.it contain Operating System Main Memory – Memory Management MCQs (Multiple Choice Questions Answers).All the MCQs (Multiple Choice Question Answers) requires in detail reading of Operating System subject as the hardness level of MCQs have been kept to advance level.
1. Memory hierarchy comprises of Disk ,RAM Memory,Caches,select the increasing order of their access time by CPU for an instruction or data
- Disk ,RAM , Caches
- RAM,Disk,Caches
- Caches,RAM,Disk
- RAM,Caches,Disk
2. for which of the below allocation is managed by Kernel and use of the allocated memory is managed by run time library?
- Caches
- RAM
- Disk
- All of the above
3. for which of the below allocation and use is managed entirely in the hardware?
- Caches
- RAM
- Disk
- All of the above
4. for which of the below allocation and use is managed by kernel?
- Caches
- RAM
- Disk
- All of the above
5. for which of the below memory Accommodating more process in memory and ensuring high hit ratio is the main performance issue
- Caches
- RAM
- Disk
- All of the above
6. for which of the below memory ensuring high hit ratio is the main performance issue
- Caches
- RAM
- Disk
- All of the above
7. for which of the below memory Quick loading and storing of parts of process address spaces is the main perfomanace issue
- Caches
- RAM
- Disk
- All of the above
8. The effective memory access time depends on a
- Miss Ratio
- Hit Ratio
- Bit Ratio
- Byte Ratio
performance of process depends on the hit ratio in various levels of the memory hierarchy,where the hit ratio in a level indicates what fraction of instruction or data bytes that were looked for in that level were actually present in it.
9. During operation, a process creates data structures within the memory already allocated to it by the kernel,This function is actually performed by the____
- Run time library
- dynamic library
- static library
- load time library
10. The kernel may decide keeping part of each process's address spaces in memory.it is achieved by part of memory hierarchy called____
- Caches
- Disk
- RAM
- Virtual memory
11. Virtual memory in memory hierarchy consists of
- Caches and RAM
- Caches and Disk
- RAM and Disk
- All of the above