Interview Questions

Q:

Pick out the correct method in the c++ standard library algorithm.

A) mismatch B) maximum
C) minimum D) None of these
 
Answer & Explanation Answer: A) mismatch

Explanation:

It is a method in the search opertion in standard library algorithms.

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Q:

Inside an interface when should the variables be initialized?

A) Globally B) Whenever required
C) Inside a function D) During the time of declaration
 
Answer & Explanation Answer: D) During the time of declaration

Explanation:

They should be initialized during the time of declaration itself otherwise it is a compilation eror

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Filed Under: Java
Job Role: IT Trainer

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Q:

What is the difference between paycheck and payslip?

Answer

Paycheck - this is the method by which the Employee is paid (A Bank Check/Cheque or Direct Deposit to Bank)


Payslip - Also called as Pay Stub is the paper which will typically detail the gross income and all taxes and any other deductions such as retirement plan contributions, insurances, garnishments, or charitable contributions taken out of the gross amount to arrive at the final net amount of the pay, also including the year to date totals in some circumstances.

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Q:

Series of interface points that allow other computers to communicate with the other layers of network protocol stack is called SAP

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

Explanation:
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Q:

What is conversion operator ?

Answer

Class can have a public method for specific data type conversions.
for example:
class B
{
double value;
public  B(int i )
operator double()
{
return value;
}
};
B BObject;
double i = BObject; // assigning object to variable i of type double.
now conversion operator gets called to assign the value.

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Q:

Convert the expression ((A + B) * C – (D – E) ^ (F + G)) to equivalent  Postfix notations.

A) AC + B * DE - FG +^- B) AB + C * DE - FG + ^-
C) AC + B* DE - FG -+ ^ D) AB + C * DE - FG -+ ^
 
Answer & Explanation Answer: B) AB + C * DE - FG + ^-

Explanation:
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Q:

What is meant by template specialization?

A) It will have certain data types to be fixed. B) It will make certain data types to be dynamic.
C) Certain data types are invalid D) None of the mentioned
 
Answer & Explanation Answer: A) It will have certain data types to be fixed.

Explanation:

In the template specialization, it will make the template to be specific for some data types.

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Q:

Why interface data is public?

Answer

to access non-public data outside class getter methods be defined but we cannot define a  method inside interface we can declared a method inside interface.

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Subject: Java

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