Questions

Q:

What are the different job scheduling in operating systems?

Answer

Scheduling is the activity of the deciding when process will receive the resources they request.


FCS ---> FCSFS stands for First Come First Served. In FCFS the job that has been waiting the longest is served next.


Round Robin Scheduling--->Round Robin scheduling is a scheduling method where each process gets a small quantity of time to run and then it is preempted and the next process gets to run. This is called time-sharing and gives the effect of all the processes running at the same time


Shortest Job First ---> The Shortest job First scheduling algorithm is a nonpreemptive scheduling algorithm that chooses the job that will execute the shortest amount of time.


Priority Scheduling--->Priority scheduling is a scheduling method where at all times the highest priority process is assigned the resource.

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Q:

What organelle carries out photosynthesis?

A) Chloroplasts B) Ribosomes
C) Chromosomes D) All of the above
 
Answer & Explanation Answer: A) Chloroplasts

Explanation:

Chloroplasts contains chlorophyll, the green substance in plants that allows them to create food from carbon dioxide and water called as photosynthesis.

 

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Q:

Mina is the tribe of

A) Assam B) Rajasthan
C) Bihar D) Tripura
 
Answer & Explanation Answer: B) Rajasthan

Explanation:
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Q:

In the following question, out of the four alternatives, select the alternative which will improve the bracketed part of the sentence. In case no improvement is needed, select "no improvement". 
 
she thought she (have rediscovered) her real self after a long time

A) had rediscovered B) Had rediscover
C) had rediscovering D) no improvement
 
Answer & Explanation Answer: A) had rediscovered

Explanation:
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Q:

Which is the world's most valuable company?

A) Apple B) Amazon
C) Microsoft D) Google
 
Answer & Explanation Answer: A) Apple

Explanation:

The world's most valuable company is Apple followed by Amazon and Microsoft.

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Q:

What is fingerprint powder made of?

A) Rosin B) Black ferric oxide
C) Lamp black D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:
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Q:

What allows a cell to respond to a hormone?

A) hormone response element B) presence of hormone receptor
C) Adrenocorticotropic D) None of the above
 
Answer & Explanation Answer: B) presence of hormone receptor

Explanation:
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Q:

A sentence/a part of the sentence is underlined. Four alternatives are given to the underlined part which will improve the sentence. Choose the correctalternative and click the button corresponding to it. In case no improvement is needed, click the button corresponding to "No improvement".

He is a fast bowler of repute, but his yesterday's performance was not up to the mark.

A) performance for yesterday B) yesterday performance
C) performances for yesterday D) No improvement
 
Answer & Explanation Answer: D) No improvement

Explanation:
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