# NPTEL Introduction to Operating Systems Assignment 4 Answer

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NPTEL Introduction to Operating Systems Assignment 4 Answer – Here All The Questions and Answers Provided to Help All The Students and NPTEL Candidate as a Reference Purpose, It is Mandetory to Submit Your Weekly Assignment By Your Own Understand Level.

Are you looking for the Assignment Answers to NPTEL Introduction to Operating Systems Assignment 4 Answer? If Yes You are in Our Great Place to Getting Your Solution, This Post Should be help you with the Assignment answer to the National Programme on Technology Enhanced Learning (NPTEL) Course “NPTEL Introduction to Operating Systems Assignment 4 Answer”

## NPTEL Introduction to Operating Systems Assignment

Operating systems (OS) provide the crucial interface between a computer’s hardware and the applications that run on it. It allows us to write programs without bothering much about the hardware. It also ensures that the computer’s resources such as its CPU, hard disk, and memory, are appropriately utilized. In this course, we dwell into how the OS manages to do all this in an efficient manner. This is an introductory course, for students with prior knowledge of computer organization. The course is based on an OS called xv6, which in many ways is similar to the Linux operating systems.

INTENDED AUDIENCE B.E./Msc (Computer Science)

PRE-REQUISITES Good knowledge of C, Computer Organization and Architecture, x86 Assembly level programming.

This course can have Associate in Nursing unproctored programming communication conjointly excluding the Proctored communication, please check announcement section for date and time. The programming communication can have a weightage of twenty fifth towards the ultimate score.

Final score = Assignment score + Unproctored programming exam score + Proctored Exam score
• Assignment score = 25% of average of best 8 assignments out of the total 12 assignments given in the course.
• ( All assignments in a particular week will be counted towards final scoring – quizzes and programming assignments).
• Unproctored programming exam score = 25% of the average scores obtained as part of Unproctored programming exam – out of 100
• Proctored Exam score =50% of the proctored certification exam score out of 100
YOU WILL BE ELIGIBLE FOR A CERTIFICATE ONLY IF ASSIGNMENT SCORE >=10/25 AND
UNPROCTORED PROGRAMMING EXAM SCORE >=10/25 AND PROCTORED EXAM SCORE >= 20/50.
If any one of the 3 criteria is not met, you will not be eligible for the certificate even if the Final score >= 40/100.

## BELOW YOU CAN GET YOUR NPTEL Introduction to Operating Systems Assignment 4 Answer 2022? :

Assignment not submitted
1 point
A double fault is a fault that occurs when a CPU is trying to call an exception handler.

Ans  – C
1 point
Arrange in order of occurance
a) Obtain the IRQ number from the interrupt controller
b) I/O APIC transfer interrupt to Local APIC.
c) Save the program states
d)Local APIC assert the CPU interrupt

Ans  – D
1 point
A system n processes, and with a non preemptive scheduler. What is the total number of scheduling possible?

Ans  – C

1 point
When a CPU is interrupted, it

Consider a system having n CPUs, k processes, and k > n. Calculate the upper bound  and lower bound for the number of processes in the RUNNING, READY and BLOCKED states.
1 point
The upper bound is :

Ans  – B
1 point
The lower bound is :

Ans  – D
1 point
Six bytes are required to store the Interrupt gate descriptor in Intel’s 80386 processor. Each descriptor comprises of 32 bits for the segment
selector and 16 bits for the offset(segment selector:offset). What is the total size in bytes of the interrupt descriptor table (IDT)?

Ans  – C
1 point
Which one of the following is FALSE?

Ans  – A
1 point
Context switching is not required for a system without multiprogrammed OS

Ans  – A
1 point
Which of the below statement is False?

Ans  – B
1 point

Ans  – B
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