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Q:

What is an idle thread?

Answer

The special thread a dispatcher will execute when no ready thread is found.

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Subject: Operating Systems

Q:

What is process migration?

Answer

It is the transfer of sufficient amount of the state of process from one machine to the target machine.

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Subject: Operating Systems

Q:

A loan shark made a loan of $100 to be repaid with $120 at the end of one month. What was the annual interest rate?

A) 210% B) 220%
C) 230% D) 240%
 
Answer & Explanation Answer: D) 240%

Explanation:

r=I/PT

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Filed Under: Simple Interest
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

What are the reasons for process suspension?

Answer

swapping


interactive user request


timing


parent process request

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Subject: Operating Systems

Q:

Determine the exact and ordinary simple interest on a 90-day loan of $8000 at 812 %

A) 150$ B) $160
C) $170 D) $180
 
Answer & Explanation Answer: C) $170

Explanation:

Exact interest, I= prt = $8000 × 0.085 × 90/365 = 167.67

 

Ordinary Interest, I= Prt = $8000 x 0.085 x 90/360 = 170

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Filed Under: Simple Interest
Exam Prep: Bank Exams
Job Role: Bank PO

Q:

List out some reasons for process termination.

Answer

- Normal completion


- Time limit exceeded


- Memory unavailable


- Bounds violation


- Protection error


- Arithmetic error


- Time overrun


- I/O failure


- Invalid instruction


- Privileged instruction


- Data misuse


- Operator or OS intervention


- Parent termination.

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Subject: Operating Systems

Q:

If a card is drawn at random from a pack of 52 cards,what is the chance of getting a spade or ace?

A) 0.25 B) 5/13
C) 0.20 D) 4/13
 
Answer & Explanation Answer: D) 4/13

Explanation:

Number of spades in a standard deck of cards=13
Number of aces in a standard deck of cards=4
And,one of the aces is a spade.
So, 13 + 4 - 1 = 16 spades or aces to choose from.
Therfore,probabiltiy of getting a spade or an ace=16/52=4/13

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Filed Under: Probability

Q:

What is process spawning?

Answer

When the OS at the explicit request of another process creates a process, this action is called process spawning.

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Subject: Operating Systems