Memory Management Quiz

What are the two main strategies for memory management?

• Paging and segmentation

• Virtual memory and paging

• Segmentation and virtual memory

• Paging and virtual memory

Why is it not desirable to move a program in memory?

• It takes a lot of time to move a program

• All the addresses and free space references need updating

• Both of the options given

• None of the options given

What is the main difference between paging and segmentation?

• Paging divides memory into fixed size pages, while segmentation divides memory based on logical divisions

• None of the above

• Paging divides memory based on logical divisions, while segmentation divides memory into fixed size pages

• Paging and segmentation are the same

Paging divides memory ​ (a)   , while segmentation divides memory ​ (b)  

• into fixed size pages
• based on logical divisions

What is virtual memory?

• Memory that is physically divided into fixed size pages

• Memory that is divided based on logical divisions

• Memory that is stored on the hard disk and used when RAM is full

• Memory that is used to store programs and data being executed by the CPU

Why is virtual memory used?

• To give the impression that a computer has more memory than it actually has

• All of the above

• To make use of cheaper hard disk space

• To prevent programs from loading when RAM is full

What happens when a computer runs out of RAM?

• Different programs are swapped out of RAM to make room for instructions that are needed

• All of the above

• Instructions that are not being used are transferred to virtual memory

• Instructions are fetched one at a time and some may not be fetched in the near future

How does virtual memory help in handling the running out of memory?

• It gives the impression that a computer has more memory than it actually has

• It swaps out different programs from RAM to virtual memory

• All of the above

• It transfers instructions that are not being used to a space on the hard disk

Why does a computer slow down when it runs out of memory?

• None of the above

• Because virtual memory is slower than RAM

• Because swapping programs between RAM and virtual memory takes time

• Because instructions that are not being used are stored in virtual memory

What is the purpose of the bootstrap program?

• To load the operating system from the disk into RAM

• To transfer instructions into RAM when a program is loaded

• To make room for instructions that are needed in RAM

• To store programs and data being executed by the CPU