Question

Hardware Define the ways in which the system resources are used to solve the computing problems of the users

True or false.

Operating system Controls and coordinates use of hardware among various applications and users

True or false.

A goal of the scheduling algorithms is to maximize CPU Utilization while minimizing Throughput

True or false

System and Application programs Provides basic computing resources

True or false.

The one program running at all times on the computer is the system

True or false.

CPU scheduling decisions may take place when a process switches from waiting to ready

True or false.

Main memory usually into two partitions:

1. Resident Operating System, usually held in low memory with interrupt vector.
2. User processes then held in high memory.
3. not of the above
4. a and b

Translation:

1. Relocation register scheme used to protect user processes from each other
2. Conversely, would like the ability to share memory when desired (for communication)
3. Ability to translate accesses from one address space (virtual) to a different one (physical)
4. Prevent access to private memory of other processes

Address generated by CPU is divided into:

1. Page number
2. Page offset
3. Page system
4. a and b

Why worry about memory multiplexing?

1. The complete working state of a process and/or kernel is defined by its data in memory (and registers)
2. Consequently, cannot just let different processes use the same memory
3. Probably don’t want different processes to even have access to each other’s memory (protection)
4. All of above

An operating system can use aging to solve which problem?

1. Deadlock
2. Race condition
3. Critical section
4. Starvation

Which of the following isnt an active entity?

1. System
2. Program

The swap-out of a running process and swap-in of a new process in thememory is?

1. Context switch
2. Waiting time
3. Execution time
4. Turnaround time

Answer 1

SOLUTION-(1):- False

EXPLANATION:- Applications programs define the ways in which the system resources are used to solve the computing problems of the users, for example : compilers, database systems, video games. Hardware provides basic computing resources, for example: CPU, memory, and I/O devices. Therefore, the above given statement is False.

SOLUTION-(2):- True

SOLUTION-(3):- False

EXPLANATION:- A goal of the scheduling algorithms is to maximize the CPU Utilization and Throughput both and minimize the turnaround time, waiting time and response time. Therefore, the above given statement is False.

SOLUTION-(4):- False

EXPLANATION:- Hardware provides basic computing resources such as CPU, memory, I/O devices. Therefore, the above given statement is False.

SOLUTION-(5):- False

EXPLANATION:- The one program running at all times on the computer is the kernel. Therefore, the above given statement is False.

SOLUTION-(6):- True

EXPLANATION:- CPU scheduling decisions may take place when a process switches from waiting state to ready state, for example: completion of I/O. Therefore, the above given statement is True.

SOLUTION-(7):- (d) a and b

SOLUTION-(8):- (c) Ability to translate accesses from one address space (virtual) to a different one (physical).

SOLUTION-(9):- (d) a and b

EXPLANATION:- Address generated by CPU is divided into Page number(p) and Page offset (d). Page number(p) is utilized as an index into a page table which comprise base address of each page in physical memory. Page offset(d) is combined with base address to define the physical memory address that is sent to the memory unit. Therefore, option(d) is the correct answer.

SOLUTION-(10):- (d) All of above

SOLUTION-(11):- (d) Starvation

SOLUTION-(12):- (b) Program

EXPLANATION:- Program is a passive entity.

SOLUTION-(13):- (a) Context switch

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