Interview Questions

Q:

What are the advantages and disadvantages of using views in ABAP programming ?

Answer

advantages: view is used to retrieve the data very fastly from the database tables
* memory wastage is reduced
* faster than joins to retrieve the data from database tables



disadvantages:
* view is not a container,it will not hold the data
* view memory is not permanent memory

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Subject: ABAP

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Q:

Demand side market failures occur when

A) supply curves do not reflect the full cost of producing a good or services B) demand curves do not reflect consumer’s full willingness to pay for goods or services
C) government imposes tax on a good or a service D) a good or service is not produced because no one demands it
 
Answer & Explanation Answer: B) demand curves do not reflect consumer’s full willingness to pay for goods or services

Explanation:

Market failure arises because it is not possible for the market to correctly weight cost and benefits in a situation in which some of the cost is completely unaccounted.

Demand-side market failures happen when demand curves do not reflect consumer’s full willingness to pay for goods or services.

Supply-side market failures occur when supply curves do not reflect the full cost of producing a good or services.

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Filed Under: Marketing and Sales
Exam Prep: Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

1 1873
Q:

What is session storage and how can you create one?

Answer

Session storage is same like local storage but the data is valid for a session. In simple words the data is deleted as soon as you close the browser.


To create a session storage you need to use “sessionStorage.variablename” . In the below code we have a created a variable called as “clickcount”.


If you refresh the browser the count increases. But if you close the browser and start again the “clickcount” variable starts from zero.


if(sessionStorage.clickcount)


{


sessionStorage.clickcount=Number(sessionStorage.clickcount)+1;


}


else


{


sessionStorage.clickcount = 0;


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Q:

What is the similarity between Dynamic Binding and linking?

Answer

Dynamic binding is orthogonal to dynamic linking. Binding refers to the linking of a procedure call to the code to be executed in response to the call. Dynamic binding It is associated with polymorphism and inheritance, it(also known as late binding) means that the code associated with a given procedure call is not known until the time of the call at run-time.

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Subject: Java

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Q:

What is the use of overloading ? or why overloading?

Answer

By using overloading we can add new functionality to the sub class.

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Subject: Java

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Q:

What are pass by reference and passby value ?

Answer

Pass By Reference means the passing the address itself rather than passing the value. Passby Value means passing a copy of the value to be passed.

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Subject: Java

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Q:

If super class ref is pointing sub class object then by using super class ref is it possible to call sub class newly defined method?

Answer

yes if the method is ovreriding method


no if the method is not overriding method

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Subject: Java

134 1870
Q:

A supply curve slopes upward because

A) an increase in price gives producers an incentive to supply a larger quantity. B) the quantity supplied of most goods and services increases over time.
C) an increase in input prices increases supply. D) as more is produced, total cost of production falls.
 
Answer & Explanation Answer: A) an increase in price gives producers an incentive to supply a larger quantity.

Explanation:

The supply curve slopes upward because for reflecting the higher price needed to cover the higher marginal cost of production. 

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Filed Under: Marketing and Sales
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

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