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:

If someone in Russia sets their language preference to English, will they see ads targeted to people in Russia? Will their ads be in Russian or in English?

Answer

They will see ads targeted to people located in Russia with the ads in English.

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Q:

Graphite is a good conductor of electricity.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

Graphite is a good conductor of electricity as it contains free electrons to move through the structure of the graphite.

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Subject: Physics
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO , IT Trainer

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Q:

How many Earth- sized Exoplanets have been discovered by NASA around a single star in February 2017 ?

A) 14 B) 7
C) 6 D) 11
 
Answer & Explanation Answer: B) 7

Explanation:

NASA announced a Seven new system of Exoplanets, which are Earth-size, and could potentially hold life.These exoplanets are located outside of our solar system and orbit a star. NASA has named the system of planets after the ‘Transiting Planets and Planetesimals Small Telescope,’ which is located in Chile. This telescope first discovered three of the planets in this system in May 2016. Unlike Earth, which rotates on its axis, the planets are “tidally locked to the star.” This means that one side of the planet has only day, and one side has only night. It also means the weather conditions are unlike what we experience on Earth.

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Filed Under: General Awareness
Exam Prep: Bank Exams , CAT , GATE
Job Role: Bank Clerk , Bank PO

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Q:

Project authorization is one of the processes that is associated with the initiation phase of a project. Authorization can come in many different forms, and projects are generally authorized by all of the following except

A) Technological Advances B) Customer request or market demand
C) Executive year - end bonuses D) Business or Social needs
 
Answer & Explanation Answer: C) Executive year - end bonuses

Explanation:

Project authorization should not be exclusively based upon the impact of an executive's bonus (many people would agree that it should not ever be based upon an executive's bonus). Answer A, B, and D are common events that predicate the need for project authorization and can evolve into large scope projects.

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Filed Under: PMP Certification

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Q:

What is hedging?

Answer

Hedging is a tool to minimize the risks. It is thus like an 'insurance' where one pays a premium but gets an assured amount in case of some uncertain event to the extent of the loss actually suffered on an equally opposite position for which the hedge was done. Thus, hedger is different from arbitrageur and speculators, as the intention here is not to maximize the profit but to minimize the loss.


E.g. In Capital Markets, suppose an investor has an equity portfolio of Rs. 2 lacs and the portfolio consists of all the major stocks of NIFTY. He thinks the market will improve in the long run but might go on a downside in the shortrun. NIFTY today stands at 4300. To minimize the risk of downfall, he enters into an option contract by buying NIFTY-PUT of strike 4300 at a premium of, say, Rs. 100. Thus, the actual amount paid is Rs. 5,000(lot size of NIFTY is 50). Also, the number of NIFTY-PUTs to be bought will vary on the beta of the portfolio so as to completely hedge the positon. 

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Subject: Finance

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Q:

Stress is a factor that contributes to heart disease risk.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

True, Stress is a factor that contributes to heart disease risk.


More factors that contributes to heart disease risk are blood pressure, cholesterol, smoking, physical inactivity and overeating.

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Subject: Biology
Exam Prep: AIEEE , Bank Exams , CAT
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Q:

Who is the new Chief Minister of Rajasthan?

A) Ashok Gehlot B) Sachin Pilot
C) Jyotiraditya D) Rakesh Asthana
 
Answer & Explanation Answer: A) Ashok Gehlot

Explanation:

Ashok Gehlot is the new Chief Minister of Rajasthan and Sachin Pilot is his Deputy.

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Filed Under: General Awareness
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