Interview Questions

Q:

What is the use of API’s in cloud services?

Answer

API stands for Application programming interface is very useful in cloud platforms as it allows easy implementation of it on the system. It removes the need to write full fledged programs. It provides the instructions to make the communication between one or more applications. It also allows easy to create application with ease and link the cloud services with other systems.

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Subject: Cloud Computing

0 2053
Q:

What is the difference between "==" and "==="?

Answer

"==" checks equality only,
"===" checks for equality as well as the type.

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Subject: Web Technology

0 2053
Q:

What are the various elements of OOPS?

Answer

Various elements of OOP are:


• Object


• Class


• Method


• Encapsulation


• Information Hiding


• Inheritance


• Polymorphism

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Subject: Java

0 2051
Q:

What is recovery/error testing?

Answer

Recovery/error testing is testing how well a system recovers from crashes, hardware failures, or other catastrophic problems.

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Subject: QA Testing

0 2047
Q:

What is the Set interface ?

Answer

- The Set interface provides methods for accessing the elements of a finite mathematical set


- Sets do not allow duplicate elements


- Contains no methods other than those inherited from Collection


- It adds the restriction that duplicate elements are prohibited


- Two Set objects are equal if they contain the same elements

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Subject: Java

0 2046
Q:

How to get contents of the folder?

Answer

File[] listFiles();


this method returns list of files stored in a directory.

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Subject: Java

0 2046
Q:

Can we compile a java program without main?

Answer

Yes, we can. In order to compile a java program, we don't require any main method. But to execute a java program we must have a main in it (unless it is an applet or servlet). Because main is the starting point of a java program.

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Subject: Java

0 2044
Q:

Give the sequence of execution of the various report triggers?

Answer

Before form , After form , Before report, Between page, After report.

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7 2042