Deck 15: Memory Management and Swapping Techniques

Question 1

Binding of instructions and data to memory addresses can be done at___________

A)compile time
B)load time
C)execution time
D)all of the mentioned

Answer 1

all of the mentioned

Question 2

If the process can be moved during its execution from one memory segment to another, then binding must be___________

A)delayed until run time
B)preponed to compile time
C)preponed to load time
D)none of the mentioned

Answer 2

delayed until run time

Question 3

What is Dynamic loading?

A)loading multiple routines dynamically
B)loading a routine only when it is called
C)loading multiple routines randomly
D)none of the mentioned

Answer 3

loading a routine only when it is called

Question 4

What is the advantage of dynamic loading?

A)a used routine is used multiple times
B)an unused routine is never loaded
C)cpu utilization increases
D)all of the mentioned

Question 5

The idea of overlays is to___________

A)data that are needed at any given time
B)enable a process to be larger than the amount of memory allocated to it
C)keep in memory only those instructions
D)all of the mentioned

Question 6

The___________        must design and program the overlay structure.

A)programmer
B)system architect
C)system designer
D)none of the mentioned

Question 7

The___________        swaps processes in and out of the memory.

A)memory manager
B)cpu
C)cpu manager
D)user

Question 8

If binding is done at assembly or load time, then the process___________be moved to different locations after being swapped out and in again.

A)can
B)must
C)can never
D)may

Question 9

In a system that does not support swapping___________

A)the compiler normally binds symbolic addresses (variables) to relocatable addresses
B)the compiler normally binds symbolic addresses to physical addresses
C)the loader binds relocatable addresses to physical addresses
D)binding of symbolic addresses to physical addresses normally takes place during execution

Question 10

The address loaded into the memory address register of the memory is referred to as___________

A)physical address
B)logical address
C)neither physical nor logical
D)none of the mentioned

Question 11

The run time mapping from virtual to physical addresses is done by a hardware device called the___________

A)virtual to physical mapper
B)memory management unit
C)memory mapping unit
D)none of the mentioned

Question 12

The size of a process is limited to the size of___________

A)physical memory
B)external storage
C)secondary storage
D)none of the mentioned

Question 13

If execution time binding is being used, then a process___________  be swapped to a different memory space.

A)has to be
B)can never
C)must
D)may

Question 14

Swapping requires a___________    

A)motherboard
B)keyboard
C)monitor
D)backing store

Question 15

The backing store is generally a

A)fast disk
B)disk large enough to accommodate copies of all memory images for all users
C)disk to provide direct access to the memory images
D)all of the mentioned

Question 16

The___________  consists of all processes whose memory images are in the backing store or in memory and are ready to run.

A)wait queue
B)ready queue
C)cpu
D)secondary storage

Question 17

The___________    time in a swap out of a running process and swap in of a new process into the memory is very high.

A)context - switch
B)waiting
C)execution
D)all of the mentioned

Question 18

Swapping___________be done when a process has pending I/O, or has to execute I/O operations only into operating system buffers.

A)must
B)can
C)must never
D)maybe

Question 19

Swap space is allocated___________

A)as a chunk of disk
B)separate from a file system
C)into a file system
D)all of the mentioned

Question 20

CPU fetches the instruction from memory according to the value of___________

A)program counter
B)status register
C)instruction register
D)program status word

Question 21

A memory buffer used to accommodate a speed differential is called___________

A)stack pointer
B)cache
C)accumulator
D)disk buffer

Question 22

Which one of the following is the address generated by CPU?

A)physical address
B)absolute address
C)logical address
D)none of the mentioned

Question 23

Run time mapping from virtual to physical address is done by___________

A)memory management unit
B)cpu
C)pci
D)none of the mentioned

Question 24

Memory management technique in which system stores and retrieves data from secondary storage for use in main memory is called?

A)fragmentation
B)paging
C)mapping
D)none of the mentioned