Questions

Q:

What is multi tasking, multi programming, multi threading?

Answer

Multi programming: Multiprogramming is the technique of running several programs at a time using timesharing. It allows a computer to do several things at the same time. Multiprogramming creates logical parallelism. The concept of multiprogramming is that the operating system keeps several jobs in memory simultaneously. The operating system selects a job from the job pool and starts executing a job, when that job needs to wait for any i/o operations the CPU is switched to another job. So the main idea here is that the CPU is never idle. 


Multi tasking: Multitasking is the logical extension of multiprogramming .The concept of multitasking is quite similar to multiprogramming but difference is that the switching between jobs occurs so frequently that the users can interact with each program while it is running. This concept is also known as time-sharing systems. A time-shared operating system uses CPU scheduling and multiprogramming to provide each user with a small portion of time-shared system. 


Multi threading: An application typically is implemented as a separate process with several threads of control. In some situations a single application may be required to perform several similar tasks for example a web server accepts client requests for web pages, images, sound, and so forth. A busy web server may have several of clients concurrently accessing it. If the web server ran as a traditional single-threaded process, it would be able to service only one client at a time. The amount of time that a client might have to wait for its request to be serviced could be enormous. So it is efficient to have one process that contains multiple threads to serve the same purpose. This approach would multithread the web-server process, the server would create a separate thread that would listen for client requests when a request was made rather than creating another process it would create another thread to service the request. To get the advantages like responsiveness, Resource sharing economy and utilization of multiprocessor architectures multithreading concept can be used.

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Q:

What was the motto of the organization BSF?

A) Duty unto Death B) Service Before Self
C) Protection & Security D) Service and Loyalty
 
Answer & Explanation Answer: A) Duty unto Death

Explanation:

BSF - Border Security Force

 

The motto of the organization BSF is "Duty unto Death."

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Filed Under: General Awareness
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Q:

Bleeding of gums, falling of teeth, fragile bones and delayed wound healing occur due to the deficiency of which one of the following vitamins?

A) Vitamin C B) Vitamin K
C) Vitamin D D) Vitamin B
 
Answer & Explanation Answer: A) Vitamin C

Explanation:

Deficiency of Vitamin C causes Scurvy, Swelling of gums etc.Vitamin K causes Non-clotting of blood ,Vitamin D causes Rickets in children and Osteomalasia in adults, Vitamin B 1 causes Beriberi,B2 causes Cracking of skin,reddish eye,cracking of tongue,B3 causes Whitening of hair ,mentally retardness ,B5 causes Pallagra or 4D syndrome,B6 causes Anemia,skin disease ,B7 causes Paralysis,hair falling,B11 causes Dysentery and B12 causes Jaundice and Teroile Glutemi

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Filed Under: Biology
Exam Prep: Bank Exams

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Q:

Kalachakra ceremony is associated with which religion?

A) Buddhism B) Islam
C) Hinduism D) Jainism
 
Answer & Explanation Answer: A) Buddhism

Explanation:

Kalachakra ceremony is associated with Buddhism. It is a way of planting a seed, and the seed will have karmic effect. One doesn't need to be present at the Kalachakra ceremony in order to receive its benefits.

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Filed Under: Indian Culture
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18 2599
Q:

Select the antonym of
horrify

A) affright B) petrify
C) appall D) soothe
 
Answer & Explanation Answer: D) soothe

Explanation:
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Filed Under: English
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Q:

What factors contribute to global winds?

A) Coriolis Effect B) Convection Cells
C) Uneven warming of the earth by the sun D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

All of the factors that contribute to global winds are 

1) Uneven warming of the earth by the sun
2) Coriolis Effect
3) Convection Cells

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Filed Under: Physics
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Q:

The combined gas law relates which of the following?

A) Volume & Temperature B) Temperature & Pressure
C) Volume & Pressure D) Volume, Temperature & Pressure
 
Answer & Explanation Answer: D) Volume, Temperature & Pressure

Explanation:

The combined gas law states that the ratio between the pressure-volume product and the temperature of a system remains constant.

 

Hence it depends on all the three Volume, Temperature & Pressure.

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Filed Under: Physics
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Q:

When hot water is placed into an empty water bottle, the bottle keeps its shape and does not soften. What type of plastic is the water bottle made from?

A) Thermoplastic B) PVC
C) Polyurethane D) Thermosetting
 
Answer & Explanation Answer: D) Thermosetting

Explanation:

Thermoset, or thermosetting, plastics are synthetic materials that strengthen during being heated, but cannot be successfully remouldedor reheated after their initial heat-forming. This contrasts withthermoplastics, which soften when heated and harden and strengthen after cooling. Thermoplastics can be heated, shaped and cooled as often as necessary without causing a chemical change, while thermosetting plastics will burn when heated after the initial moulding.

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Filed Under: General Science
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