Memory Management and Virtual Memory

By : Manglika Tripathi

Updated : Feb 25, 2021, 3:46

Memory Management and Virtual Memory MCQ questions form an important quotient in the highly competitive GATE examination as well as in other entrance examinations across the country such as NIELIT, SSC JE and the kind that revolve around the evaluation and assessment of technical studies and the comprehension of STEM concepts in a candidate.The primary purpose of memory management is to offer various ways to dynamically assign different segments of the memory to programs upon their request. Virtual memory, meanwhile, refers to a feature of the operating system that allows a computer to make up for its lack of physical memory. Consequently, one’s familiarity with Memory Management and Virtual Memory syllabus for GATE proves to be a highly vital factor for their preparation for the GATE CS examination.

Important Memory Management and Virtual Memory Topics for GATE CS

The following are the memory management and virtual memory topics for GATE CS and all other branches that form an important part of the memory management and virtual memory GATE syllabus.

Topic

Explanation

Process

In‌ ‌the‌ ‌field‌ ‌of‌ ‌engineering‌ ‌and‌ ‌computer‌ ‌science,‌ ‌processes‌ ‌refer‌ ‌to‌ ‌that‌ ‌instance‌ ‌of‌ ‌a‌ ‌computer‌ ‌program‌ ‌that‌ ‌is‌ ‌being‌ executed by ‌one‌ ‌or‌ ‌more‌ ‌than‌ ‌one‌ ‌thread.

Threads

Threads in the field of computer science, ‌

Demand Paging

In an operating system, demand paging refers to a method of virtual memory management wherein the OS of the system utilising this method copies a disk page into physical memory should that page happen to not already exist in memory. An attempt has been made to access it.

System Calls

System calls in OS refer to the programmatic manner through which one computer program requests a service from the OS’s kernel on which it is executed.

TipstoSolve‌ Memory Management and Virtual Memory ‌Questions in GATE CS

problems related to Memory Management and Virtual Memory for computer science, ECE, and other exams.‌ Keep the following tricks handy while attempting Memory Management and Virtual Memory GATE CS questions in general.

  • Before proceeding to solve problems in the field of memory management and virtual memory, acquaint yourself with the various types of memory allocation that are utilised by computer programs.
  • Familiarising yourself with paging and segmentation concepts can give you an upper hand while attempting to solve problems in this domain.
  • Be thorough with the practice of banker’s algorithms.
  • Gain an in-depth understanding of the various page replacement algorithms such as FIFO, Basic Page Replacement, and LRU.

ImportanceofMemory Management and Virtual Memory ‌in GATE

When preparing for a Memory Management and Virtual Memory quiz, you should keep the following things in mind.

  • The concepts of memory management and virtual memory are central to the study of GATE CS, and thus, a sound understanding of these notions stands to amp up a candidate’s preparation for GATE CS.
  • Familiarity with the concepts of memory management and virtual memory helps a candidate to solve problems that revolve around deadlock avoidance algorithms swiftly.‌
  • Questions on page ranking algorithms, which can often prove to be time-consuming, can be solved rather swiftly with the help of concepts discussed under memory management and virtual memory.

MostRecommendedBooksforMemory Management and Virtual Memory for GATE


Candidates looking for academic resources to make comprehensive Memory Management and Virtual Memory notes for CS can refer to the books mentioned in the following table:

Book

Author/Publishing House

Operating System Concepts

Silberschatz, Galvin, and Gagne

Operating Systems: Internals and Designs

Stallings

Computer Organisation and Architecture (Edition 7)

Hamacher, Vranesic, Zaky

Introduction to Algorithms (Edition 3)

Thomas H. Cormen, Charles E. Leiserson, Ronald L. Rivest, Clifford Stein


Why Prepare Memory Management and Virtual Memory ‌from BYJU'S Exam Prep?

Gradeups’s‌ ‌comprehensive‌ ‌bank‌ ‌of‌ Memory Management and Virtual Memory notes for GATE pdf ‌coupled‌ ‌with‌ ‌its‌‌ Memory Management and Virtual Memory GATE questions and answers pdf,‌ helps‌ ‌candidates‌ ‌gain‌ ‌an‌ ‌in-depth‌ ‌understanding‌ ‌of‌ ‌all‌ ‌the‌ ‌various‌ ‌concepts‌ ‌that‌ ‌are‌ included ‌under‌ ‌these ‌particular‌ ‌topics.‌ ‌Irrespective‌ ‌of‌ ‌whether‌ ‌a‌ ‌candidate‌ ‌is‌ ‌looking‌ ‌for‌ ‌memory management and virtual memory ‌notes‌ ‌for‌ GATE ‌CS‌ ‌or‌ study material for any other competitive engineering examination,‌ ‌Gradeup‌ ‌acts‌ ‌as‌ ‌a‌ ‌one-stop‌ ‌solution‌ ‌for‌ ‌them‌ ‌and‌ ‌furnishes‌ ‌them‌ ‌with‌ ‌additional‌ ‌practice‌ ‌material‌ ‌with‌ ‌its‌ Memory Management and Virtual Memory mcq pdf.‌ ‌

Gradeup, in essence, presents itself as the perfect platform for candidates who are looking to step up their entrance preparations by staying abreast of all the latest topics and examination trends. The platform’s comprehensive academic resources which is inclusive of memory management and virtual memory ‌study‌ ‌material‌ ‌for‌ ‌GATE ‌CS‌‌ along with its diverse suite of insightful tips and techniques help a student unlock multiple solutions to a particular problem statement and stay ahead of their competitors in the process. 

FAQs

Q.What is paging in memory management?

Paging refers to how the system stores and retrieves data from the secondary storage to utilise it in the main memory.

Q. What are the basic components of a memory management unit?

The basic components of a memory management unit are context register, segment map, and page map.

Q. Where is virtual memory located?

Virtual memory is located in the computer system’s secondary memory storage space.

Q. What are the two ways in which virtual memory is handled?

Paged and segmented are the two ways in which virtual memory is handled.

Q. Which page replacement algorithm is best in OS?

The Least Recently Used (LRU) page replacement algorithm is considered to be the best and most optimal page replacement algorithm in OS.