Interview Questions

Q:

What do you understand by private, protected and public?

Answer

These are accessibility modifiers. Private is the most restrictive, while public is the least restrictive. There is no real difference between protected and the default type (also known as package protected) within the context of the same package, however the protected keyword allows visibility to a derived class in a different package.

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Subject: Java

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Q:

What is end-to-end testing?

Answer

Similar to system testing, the *macro* end of the test scale is testing a complete application in a situation that mimics real world use, such as interacting with a database, using network communication, or interacting with other hardware, application, or system.

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Subject: QA Testing

0 1876
Q:

How E-commerce works?

Answer

=> When a consumer wants to buy a certain product, he go to the website and selects the product he wants to buy. 


=> Once the product is selected, the consumer transaction is moved to the online transaction server where he places an order. 


=> The informations is exchanged over a secure channel through a private gateway to a processing network. 


=> The networked banks accept or reject the transaction.


 All this happens in just a matter of seconds. E-commerce is a very secure due to the SSL (Secure Socket Layer) technology.

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Subject: Web Technology

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Q:

What is the use of Infinite file in Web security?

Answer

- Infinite file consists of random bits of code that is stored in /dev/random file used to generate the cryptographic keys. 


- Infinite file consists of the source of infinite data that can be used to provide the response in easy manner. 


- Web server consists of the file that is received by the server in this format GET //dev/random HTTP/1.0. 


- Web server provides the continuous data that can be read from /dev/random/ before the web server can run out of the memory. 


- The server crashes out in case it runs out of the memory due to the infinite file type and it is very essential in case of the web security.

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Subject: Web Technology

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Q:

What is Web Browser ?

Answer

Web browser is a software application used to locate,retrieve and display content on the World Wide Web, including Web pages, images, videos and other files.


Examples : Microsoft Internet Expiorer , Mozilla Firefox , Google Chrome, Opers , Safari etc...

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Subject: Web Technology

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Q:

What is JDBC Driver ?

Answer

The JDBC Driver provides vendor-specific implementations of the abstract classes provided by the JDBC API. This driver is used to connect to the database.

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Subject: Java

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Q:

What do you think is the most important responsibility of a business analyst?

Answer

Requirements gathering, functional design and business process, change management etc are very critical tasks for a business analyst.

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Q:

What is the difference between method overriding and overloading?

Answer

Overriding is a method with the same name and arguments as in a parent, whereas overloading is the same method name but different arguments

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Subject: Java

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