Memory Management Interview Questions & Answers Download PDF
Refine your OS Memory Management interview skills with our 8 critical questions. Our questions cover a wide range of topics in OS Memory Management to ensure you're well-prepared. Whether you're new to the field or have years of experience, these questions are designed to help you succeed. Don't miss out on our free PDF download, containing all 8 questions to help you succeed in your OS Memory Management interview. It's an invaluable tool for reinforcing your knowledge and building confidence.
8 OS Memory Management Questions and Answers:
OS Memory Management Job Interview Questions Table of Contents:
1 :: What is segmented memory management?
Segmented memory is the only memory management technique that does not provide the user's program with a 'linear and contiguous address space. Segments are areas of memory that usually correspond to a logical grouping of information such as a code procedure or a data array. Segments require hardware support in the form of a segment table which usually contains the physical address of the segment in memory, its size, and other data such as access protection bits and status
2 :: What is paged memory management?
Paged allocation divides the computer's primary memory into fixed-size units called page frames, and the program's address space into pages of the same size. The hardware memory management unit maps pages to frames.
3 :: What is partitioned allocation?
Partitioned allocation divides primary memory into multiple memory partitions, usually contiguous areas of memory. Each partition might contain all the information for a specific job or task. Memory management consists of allocating a partition to a job when it starts and unallocating it when the job ends.
4 :: What is single contiguous allocation?
Single allocation is the simplest memory management technique. All the computer's memory, usually with the exception of a small portion reserved for the operating system, is available to the single application. MS-DOS is an example of a system which allocates memory in this way
5 :: What are the main types of memory?
RAM- Random Access Memory is a volatile form of memory. This means that the content written on RAM is wiped off when the power is turned OFF.
ROM – Read only memory like hard disks, tapes are ROM where the content once written is permanently written unless wiped off by the user..
The basic types of memories that a computer has are:
RAM Random access memory
ROM Read Only memory
Cache Memory
Other than these a computer also has secondary storage devices like a hard disk which also contribute towards it memory.
ROM – Read only memory like hard disks, tapes are ROM where the content once written is permanently written unless wiped off by the user..
The basic types of memories that a computer has are:
RAM Random access memory
ROM Read Only memory
Cache Memory
Other than these a computer also has secondary storage devices like a hard disk which also contribute towards it memory.
6 :: Do you know what is page fault and when does it occur?
A page is a fixed length memory block used as a transferring unit between physical memory and an external storage. A page fault occurs when a program accesses a page that has been mapped in address space, but has not been loaded in the physical memory.
7 :: What is dirty bit?
A dirty bit is a flag that indicates whether an attribute needs to be updated. Such situations usually occur when a bit in a memory cache or virtual memory page that has been changed by a processor but has not been updated in the storage.
8 :: What is compactions?
Compaction is a process in which the free space is collected in a large memory chunk to make some space available for processes.
