Memory Allocation – 1 MCQ’s

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This set of Operating System Multiple Choice Questions & Answers (MCQs) focuses on “Memory Allocation – 1″.

1. What is the operating system?
a) in the low memory
b) in the high memory
c) either low or high memory (depending on the location of interrupt vector)
d) none of the mentioned

2. In contiguous memory allocation ____________
a) each process is contained in a single contiguous section of memory
b) all processes are contained in a single contiguous section of memory
c) the memory space is contiguous
d) none of the mentioned

3. The main memory accommodates ____________
a) operating system
b) cpu
c) user processes
d) all of the mentioned

4. The relocation register helps in ____________
a) providing more address space to processes
b) a different address space to processes
c) to protect the address spaces of processes
d) none of the mentioned

5. The operating system and the other processes are protected from being modified by an already running process because ____________
a) they are in different memory spaces
b) they are in different logical addresses
c) they have a protection algorithm
d) every address generated by the CPU is being checked against the relocation and limit registers

6. Using transient code, _______ the size of the operating system during program execution.
a) increases
b) decreases
c) changes
d) maintains

7. With relocation and limit registers, each logical address must be _______ the limit register.
a) less than
b) equal to
c) greater than
d) none of the mentioned

8. Transient operating system code is code that ____________
a) is not easily accessible
b) comes and goes as needed
c) stays in the memory always
d) never enters the memory space

9. When memory is divided into several fixed sized partitions, each partition may contain ________
a) exactly one process
b) at least one process
c) multiple processes at once
d) none of the mentioned

10. The first fit, best fit and worst fit are strategies to select a ______
a) process from a queue to put in memory
b) processor to run the next process
c) free hole from a set of available holes
d) all of the mentioned

11. In fixed size partition, the degree of multiprogramming is bounded by ___________
a) the number of partitions
b) the CPU utilization
c) the memory size
d) all of the mentioned

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