Electronic Payment And Services Interview Questions and Answers

Basic questions on cs fundamentals like DBMS, SQL , OOPS and aptitude.

8 people divided into 2 groups of 4. They will give one group to debate for the topic and other group against the topic.
5 minutes is given to students to prepare.
People who spoke and had good presence in the debate were chosen. Content of speaking+ presence of candidates is seen.

Q1. What is abstract class?
Ans. 
An abstract class is a class that cannot be instantiated and is meant to be subclassed.
• An abstract class can have both abstract and non-abstract methods.

• It can provide a common interface for its subclasses.

• Subclasses of an abstract class must implement all the abstract methods.

• An abstract class can have constructors.

• An abstract class cannot be instantiated directly.
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Q2. Because i mentioned web projects in resume, was asked difference between Java and JavaScript
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Q3. What is virtual function
Ans. 
A virtual function is a function in a base class that is overridden by a derived class, allowing polymorphic behavior.
• Virtual functions are used in object-oriented programming to achieve runtime polymorphism.

• They are declared in the base class with the 'virtual' keyword and can be overridden in derived classes.

• When a virtual function is called, the appropriate function based on the object's actual type is executed.

• Virt...read more
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Q1. About yourself with overall experience
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Q2. Set the expectations
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Q1. Just simple questions and reason for leaving previous job
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Q1. With the CEO and his most important but worthless secretary
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Q2. General questions as they are incompetent to ask any useful questions
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