Computer Science Engineering (CSE) Exam > Computer Science Engineering (CSE) Questions > Let the time taken to switch between user and...
Start Learning for Free
Let the time taken to switch between user and kernel modes of execution be t1 while the time taken to switch between two processes be t2. Which of the following is TRUE?
- a)t1 > t2
- b)t1 = t2
- c)t1 < t2
- d)Nothing can be said about the relation between t1 and t2
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
Let the time taken to switch between user and kernel modes of executio...
Process switching also involves mode changing.
Most Upvoted Answer
Let the time taken to switch between user and kernel modes of executio...
Explanation:
To understand why option 'C' is the correct answer, let's break down the question and analyze each scenario separately.
1. Switching between user and kernel modes (t1):
When a program running in user mode needs to execute a system call or request a service from the operating system, it needs to switch from user mode to kernel mode. This switch involves changing the CPU's mode and transferring control to the operating system.
The time taken to switch between user and kernel modes (t1) is typically very small because it only involves a few instructions to change the mode and transfer control. This time is usually measured in nanoseconds.
2. Switching between two processes (t2):
When the operating system needs to allocate CPU time to another process, it needs to switch from the currently running process to the new process. This switch involves saving the context of the current process (registers, program counter, etc.), loading the context of the new process, and transferring control to the new process.
The time taken to switch between two processes (t2) is generally larger compared to t1 because it involves saving and restoring the context of the processes. This time is typically measured in microseconds.
Relation between t1 and t2:
Based on the above explanations, it is clear that t1 is smaller than t2. The time taken to switch between user and kernel modes is much smaller compared to the time taken to switch between two processes.
Therefore, the correct answer is option 'C': t1 < t2.="" />
To understand why option 'C' is the correct answer, let's break down the question and analyze each scenario separately.
1. Switching between user and kernel modes (t1):
When a program running in user mode needs to execute a system call or request a service from the operating system, it needs to switch from user mode to kernel mode. This switch involves changing the CPU's mode and transferring control to the operating system.
The time taken to switch between user and kernel modes (t1) is typically very small because it only involves a few instructions to change the mode and transfer control. This time is usually measured in nanoseconds.
2. Switching between two processes (t2):
When the operating system needs to allocate CPU time to another process, it needs to switch from the currently running process to the new process. This switch involves saving the context of the current process (registers, program counter, etc.), loading the context of the new process, and transferring control to the new process.
The time taken to switch between two processes (t2) is generally larger compared to t1 because it involves saving and restoring the context of the processes. This time is typically measured in microseconds.
Relation between t1 and t2:
Based on the above explanations, it is clear that t1 is smaller than t2. The time taken to switch between user and kernel modes is much smaller compared to the time taken to switch between two processes.
Therefore, the correct answer is option 'C': t1 < t2.="" />
|
Explore Courses for Computer Science Engineering (CSE) exam
|
|
Similar Computer Science Engineering (CSE) Doubts
Top Courses for Computer Science Engineering (CSE)View all
Let the time taken to switch between user and kernel modes of execution be t1 while the time taken to switch between two processes be t2. Which of the following is TRUE?a)t1 > t2b)t1 = t2c)t1 < t2d)Nothing can be said about the relation between t1 and t2Correct answer is option 'C'. Can you explain this answer?
Question Description
Let the time taken to switch between user and kernel modes of execution be t1 while the time taken to switch between two processes be t2. Which of the following is TRUE?a)t1 > t2b)t1 = t2c)t1 < t2d)Nothing can be said about the relation between t1 and t2Correct answer is option 'C'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Let the time taken to switch between user and kernel modes of execution be t1 while the time taken to switch between two processes be t2. Which of the following is TRUE?a)t1 > t2b)t1 = t2c)t1 < t2d)Nothing can be said about the relation between t1 and t2Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Let the time taken to switch between user and kernel modes of execution be t1 while the time taken to switch between two processes be t2. Which of the following is TRUE?a)t1 > t2b)t1 = t2c)t1 < t2d)Nothing can be said about the relation between t1 and t2Correct answer is option 'C'. Can you explain this answer?.
Let the time taken to switch between user and kernel modes of execution be t1 while the time taken to switch between two processes be t2. Which of the following is TRUE?a)t1 > t2b)t1 = t2c)t1 < t2d)Nothing can be said about the relation between t1 and t2Correct answer is option 'C'. Can you explain this answer? for Computer Science Engineering (CSE) 2025 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about Let the time taken to switch between user and kernel modes of execution be t1 while the time taken to switch between two processes be t2. Which of the following is TRUE?a)t1 > t2b)t1 = t2c)t1 < t2d)Nothing can be said about the relation between t1 and t2Correct answer is option 'C'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Let the time taken to switch between user and kernel modes of execution be t1 while the time taken to switch between two processes be t2. Which of the following is TRUE?a)t1 > t2b)t1 = t2c)t1 < t2d)Nothing can be said about the relation between t1 and t2Correct answer is option 'C'. Can you explain this answer?.
Solutions for Let the time taken to switch between user and kernel modes of execution be t1 while the time taken to switch between two processes be t2. Which of the following is TRUE?a)t1 > t2b)t1 = t2c)t1 < t2d)Nothing can be said about the relation between t1 and t2Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for Computer Science Engineering (CSE).
Download more important topics, notes, lectures and mock test series for Computer Science Engineering (CSE) Exam by signing up for free.
Here you can find the meaning of Let the time taken to switch between user and kernel modes of execution be t1 while the time taken to switch between two processes be t2. Which of the following is TRUE?a)t1 > t2b)t1 = t2c)t1 < t2d)Nothing can be said about the relation between t1 and t2Correct answer is option 'C'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Let the time taken to switch between user and kernel modes of execution be t1 while the time taken to switch between two processes be t2. Which of the following is TRUE?a)t1 > t2b)t1 = t2c)t1 < t2d)Nothing can be said about the relation between t1 and t2Correct answer is option 'C'. Can you explain this answer?, a detailed solution for Let the time taken to switch between user and kernel modes of execution be t1 while the time taken to switch between two processes be t2. Which of the following is TRUE?a)t1 > t2b)t1 = t2c)t1 < t2d)Nothing can be said about the relation between t1 and t2Correct answer is option 'C'. Can you explain this answer? has been provided alongside types of Let the time taken to switch between user and kernel modes of execution be t1 while the time taken to switch between two processes be t2. Which of the following is TRUE?a)t1 > t2b)t1 = t2c)t1 < t2d)Nothing can be said about the relation between t1 and t2Correct answer is option 'C'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Let the time taken to switch between user and kernel modes of execution be t1 while the time taken to switch between two processes be t2. Which of the following is TRUE?a)t1 > t2b)t1 = t2c)t1 < t2d)Nothing can be said about the relation between t1 and t2Correct answer is option 'C'. Can you explain this answer? tests, examples and also practice Computer Science Engineering (CSE) tests.
|
|
Explore Courses for Computer Science Engineering (CSE) exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup