Master Memory Management Techniques in Computer Science: Interactive Quizzes

Question 1

Which of the following is not a function of a memory management unit (MMU)?

Accepted Answer

Process scheduling

Answer

Address translation

Answer

Cache management

Answer

Page translation

Question 2

Which of the following is not a page replacement algorithm?

Accepted Answer

Most Recently Used (MRU)

Answer

Optimal (OPT)

Answer

Least Recently Used (LRU)

Answer

First-In First-Out (FIFO)

Question 3

Which memory management technique partitions physical memory into fixed-sized blocks called pages?

Accepted Answer

Paging

Answer

Segmentation

Answer

Virtual memory

Answer

Cache memory

Question 4

What is the fundamental difference between demand paging and pre-emptive paging?

Accepted Answer

Demand paging swaps pages on demand, while pre-emptive paging swaps pages before they are needed.

Answer

Pre-emptive paging swaps pages on demand, while demand paging swaps pages before they are needed.

Answer

Demand paging uses fixed-size pages, while pre-emptive paging uses variable-size pages.

Answer

Pre-emptive paging uses fixed-size pages, while demand paging uses variable-size pages.

Question 5

Which memory management technique allows multiple processes to share the same physical memory?

Accepted Answer

Virtual memory

Answer

Paging

Answer

Segmentation

Answer

Cache memory

Question 6

Which of the following is a key distinction between dynamic and static memory allocation?

Accepted Answer

Dynamic memory is allocated during program execution, while static memory is allocated during compilation.

Answer

Static memory is allocated during program execution, while dynamic memory is allocated during compilation.

Answer

Dynamic memory can be resized, while static memory has a fixed size.

Answer

Static memory can be resized, while dynamic memory has a fixed size.

Question 7

In a multiprocessor system with shared memory, which technique ensures that multiple caches have consistent data?

Accepted Answer

Bus Snooping

Answer

Page Coloring

Answer

Write-Through Caching

Answer

Copy-On-Write

Question 8

The process of transferring a process from main memory to disk and back when required is known as:

Accepted Answer

Swapping

Answer

Paging

Answer

Segmentation

Answer

Virtualization

Question 9

The translation lookaside buffer (TLB) is utilized in paging systems primarily to:

Accepted Answer

Store recently translated page table entries

Answer

Hold the entire page table

Answer

Check for page faults

Answer

Manage the physical memory

Question 10

What is the primary distinction between paging and segmentation?

Accepted Answer

Paging divides memory into fixed-size blocks, while segmentation divides memory into variable-size blocks.

Answer

Segmentation divides memory into fixed-size blocks, while paging divides memory into variable-size blocks.

Answer

Paging is implemented in hardware, while segmentation is implemented in software.

Answer

Segmentation is implemented in hardware, while paging is implemented in software.

Question 11

Which of the following is a definition of a page fault?

Accepted Answer

A page fault occurs when a process references a page that is not in memory.

Answer

A page fault occurs when a process writes to a page that is read-only.

Answer

A page fault occurs when a process attempts to access a page that is protected.

Answer

A page fault occurs when a process tries to access a page that is not in the page table.

Question 12

What is the primary function of a Translation Lookaside Buffer (TLB)?

Accepted Answer

To store frequently used page table entries, reducing the overhead of page table lookups.

Answer

To translate virtual addresses to physical addresses.

Answer

To manage the allocation and deallocation of pages.

Answer

To handle page faults.

Question 13

What is the key difference between logical and physical addresses?

Accepted Answer

Logical addresses are generated by the CPU, while physical addresses are used by the memory hardware.

Answer

Physical addresses are generated by the CPU, while logical addresses are used by the memory hardware.

Answer

Logical addresses are always smaller than physical addresses.

Answer

Physical addresses are always smaller than logical addresses.

Question 14

What is the primary purpose of a memory management unit (MMU)?

Accepted Answer

To translate virtual addresses to physical addresses.

Answer

To manage the allocation and deallocation of pages.

Answer

To handle page faults.

Answer

To reduce memory fragmentation.

Question 15

Segmentation allows programs to be divided into logical units called:

Accepted Answer

Segments

Answer

Frames

Answer

Pages

Answer

Blocks

Question 16

What is the primary responsibility of a Memory Management Unit (MMU)?

Accepted Answer

Translating virtual addresses into their corresponding physical addresses

Answer

Handling page faults encountered during memory access

Answer

Caching frequently accessed memory blocks to optimize performance

Answer

Scheduling processes for execution on the CPU

Question 17

In a segmented memory system, what is the primary function of a base register?

Accepted Answer

To hold the starting physical address of the segment

Answer

To store the size of the segment in memory

Answer

To specify the protection attributes associated with the segment

Answer

To indicate the access permissions granted to the segment

Question 18

What is the primary purpose of a translation lookaside buffer (TLB) in a memory management system?

Accepted Answer

To accelerate the process of address translation, reducing the time required to locate physical addresses

Answer

To manage virtual memory pages and handle page faults efficiently

Answer

To resolve cache coherence issues and ensure data consistency across multiple processors

Answer

To provide memory protection by enforcing access permissions and preventing unauthorized access

Question 19

What is the primary objective of garbage collection in the context of memory management?

Accepted Answer

To reclaim memory that is no longer in use, preventing memory leaks and optimizing resource utilization

Answer

To compact memory and reduce fragmentation, improving memory allocation efficiency

Answer

To detect and resolve memory leaks, ensuring that all allocated memory is properly released

Answer

To enhance cache performance by identifying and removing infrequently used data from memory

Question 20

Which page replacement algorithm is optimal according to Belady's Min principle?

Accepted Answer

Optimal Page Replacement (OPR)

Answer

Least Recently Used (LRU)

Answer

First-In First-Out (FIFO)

Answer

Clock Page Replacement

Question 21

What is the purpose of a page table?

Accepted Answer

To translate virtual addresses to physical addresses.

Answer

To manage the allocation of physical memory pages.

Answer

To track the usage history of memory pages.

Answer

To prevent access to unauthorized memory locations.

Question 22

What is the role of a Translation Lookaside Buffer (TLB) in memory management?

Accepted Answer

To cache recently used page table entries.

Answer

To handle page faults efficiently.

Answer

To manage the allocation of physical memory pages.

Answer

To provide protection against unauthorized memory access.

Question 23

What is the main difference between segmentation and paging?

Accepted Answer

Paging uses fixed-size pages while segmentation uses variable-size segments

Answer

Segmentation uses fixed-size segments while paging uses variable-size pages

Answer

Segmentation is more efficient for large programs, while paging is more efficient for small programs

Answer

Paging is more efficient for large programs, while segmentation is more efficient for small programs

Question 24

What is the primary purpose of a TLB (Translation Lookaside Buffer)?

Accepted Answer

To speed up memory access by caching recently translated virtual to physical address mappings

Answer

To reduce page faults by keeping track of recently used pages

Answer

To manage the mapping of virtual addresses to physical addresses

Answer

To improve the efficiency of the memory management unit (MMU)

Question 25

What is the primary responsibility of memory management in a computer system?

Accepted Answer

To allocate and manage memory resources efficiently

Answer

To improve the performance of computer systems

Answer

To reduce the cost of memory

Answer

To prevent memory leaks

Question 26

Which type of memory management unit (MMU) combines the features of both paging and segmentation?

Accepted Answer

Combined MMU

Answer

Paged MMU

Answer

Segmented MMU

Answer

Virtual MMU

Question 27

What is the primary role of a page table in a paged memory system?

Accepted Answer

To translate virtual addresses to physical addresses

Answer

To manage the allocation and deallocation of pages

Answer

To store the contents of recently used pages

Answer

To prevent unauthorized access to memory

Question 28

Which of the following is a benefit of segmentation compared to paging?

Accepted Answer

Improved security

Answer

Reduced memory fragmentation

Answer

Simplified memory management

Answer

Increased memory utilization

Question 29

Which of the following is a key challenge in memory management?

Accepted Answer

Fragmentation

Answer

Overallocation

Answer

Access time

Answer

Security

Question 30

Which of the following is a characteristic of a fully associative cache?

Accepted Answer

Any block can be placed in any cache line

Answer

Blocks are mapped to cache lines based on the least recently used algorithm

Answer

Blocks are mapped to cache lines based on the set-associative algorithm

Answer

Blocks are mapped to cache lines based on the direct mapping algorithm

Question 31

What is the purpose of a dirty bit in a cache line?

Accepted Answer

To indicate whether the cache line has been modified since it was loaded

Answer

To indicate whether the cache line is currently being used

Answer

To indicate the priority of the cache line

Answer

To prevent unauthorized access to the cache line

Question 32

Which of the following is a primary goal of memory management in computer systems?

Accepted Answer

Efficient utilization of memory resources, particularly RAM (Random Access Memory)

Answer

Preventing unauthorized access to memory

Question 33

The process of transferring data from disk to main memory in memory management is referred to as:

Accepted Answer

Paging in

Answer

Paging out

Question 34

Virtual memory in computer systems utilizes:

Accepted Answer

Both RAM and secondary storage space, typically a hard disk drive

Answer

Only RAM

Question 35

In segmentation, each segment is assigned a:

Accepted Answer

Unique identifier that distinguishes it from other segments

Answer

Physical memory address

Question 36

Which of the following is NOT a benefit commonly associated with using memory management techniques?

Accepted Answer

Increased memory requirements

Answer

Increased reliability

Question 37

In a paged memory system, what is the primary function of a page table?

Accepted Answer

Stores the physical memory address of each page in memory

Answer

Holds the virtual memory address of each page in memory

Answer

Manages the allocation and deallocation of pages

Answer

Tracks the protection and access rights of each page

Question 38

Which of the following is an advantage of using a multi-level page table?

Accepted Answer

Enhanced performance for large memory spaces

Answer

Smaller page table size

Answer

Simplified page table management

Answer

Reduced memory overhead

Question 39

What is the primary objective of a least recently used (LRU) page replacement algorithm?

Accepted Answer

To select the page that has been least recently used for replacement

Answer

To select the page that has been most recently used for replacement

Answer

To randomly select a page for replacement

Answer

To keep track of the most frequently used pages

Question 40

In a segmented memory system, what is the main purpose of a base register?

Accepted Answer

Holds the starting address of the currently active segment

Answer

Stores the size of the currently active segment

Answer

Manages the allocation and deallocation of segments

Answer

Tracks the protection and access rights of each segment

Question 41

What is the primary purpose of a translation lookaside buffer (TLB)?

Accepted Answer

To cache recently used page table entries

Answer

To manage the allocation and deallocation of pages

Answer

To track the protection and access rights of each page

Answer

To store the physical addresses of all pages in memory

Question 42

What is the primary goal of memory management techniques?

Accepted Answer

To efficiently allocate and reclaim memory resources

Answer

To safeguard memory from unauthorized access

Answer

To improve the performance of memory operations

Answer

To lower the expense of memory hardware

Question 43

What is the primary function of a page table?

Accepted Answer

Translating virtual addresses to physical addresses

Answer

Storing the physical addresses of pages

Answer

Managing the allocation of free pages

Answer

Preventing memory leaks

Question 44

What is the difference between logical and physical memory?

Accepted Answer

Logical memory is seen by the programmer, while physical memory is the actual hardware

Answer

Physical memory is seen by the programmer, while logical memory is the actual hardware

Answer

They are the same thing

Answer

Logical memory is used by the operating system, while physical memory is used by applications

Question 45

Which of the following is NOT a benefit of using a cache memory?

Accepted Answer

Increased memory capacity

Answer

Faster access to frequently used data

Answer

Reduced memory bandwidth requirements

Answer

Lower power consumption

Question 46

In a segmented memory system, the segment table is:

Accepted Answer

A collection of segment descriptors

Answer

A mapping between virtual and physical addresses

Answer

A list of all the segments in the program

Answer

A way to protect against unauthorized access to segments

Question 47

In a virtual memory system, the demand paging technique is used to:

Accepted Answer

Bring pages into memory only when they are needed

Answer

Keep all pages in memory at all times

Answer

Evict pages from memory when they are not being used

Answer

Translate virtual addresses to physical addresses

Question 48

What is the primary purpose of a page table in memory management?

Accepted Answer

To translate virtual addresses into physical addresses

Answer

To manage free and allocated pages in memory

Answer

To store the actual contents of pages in memory

Answer

To translate segment addresses into page addresses

Question 49

The Least Recently Used (LRU) page replacement algorithm operates on the principle of replacing the page that:

Accepted Answer

Has not been accessed for the longest period of time

Answer

Has been accessed the most recently

Answer

Is least likely to be accessed again

Answer

Is most likely to be accessed again

Question 50

What is the role of a Translation Lookaside Buffer (TLB) in memory management?

Accepted Answer

To cache frequently accessed page table entries, speeding up address translation

Answer

To manage page replacement decisions and evict pages from memory

Answer

To translate virtual addresses into segment addresses

Answer

To allocate and deallocate pages in memory

Question 51

Which paging algorithm aims to reduce the frequency of page faults?

Accepted Answer

Least Recently Used (LRU)

Answer

Optimal

Answer

First-In, First-Out (FIFO)

Answer

Random

Question 52

Which of the following is **not** a disadvantage of using a page table for memory translation?

Accepted Answer

Enhanced performance due to quick page table lookups

Answer

Increased memory overhead

Answer

Potential for fragmentation

Answer

Complexity in managing large address spaces

Question 53

What is the main role of a Translation Lookaside Buffer (TLB) in memory management?

Accepted Answer

Caching recently accessed page table entries to minimize page table lookups

Answer

Translating virtual addresses to physical addresses

Answer

Handling page faults

Answer

Allocating and deallocating memory pages

Question 54

Which of the following is **not** a potential consequence of memory fragmentation in a computer system?

Accepted Answer

Accelerated program execution

Answer

Reduced memory utilization

Answer

Increased page fault rates

Answer

Data corruption

Question 55

What is the purpose of a base register in segmentation memory management?

Accepted Answer

Storing the starting address of the current segment

Answer

Holding the size of the current segment

Answer

Indicating the protection level of the current segment

Answer

Translating physical addresses to virtual addresses

Question 56

What is the primary function of a memory management unit (MMU)?

Accepted Answer

Translating virtual addresses to physical addresses

Answer

Managing page faults

Answer

Allocating and deallocating memory pages

Answer

Safeguarding memory from unauthorized access