Interview Questions

Q:

what is the difference between the terms 'credit' and 'debit' from the customer point of view?

Answer

 From the customer point of view, credit is the amount which is deposited into her or his account. And debit refers to that amount which is taken from the account of the customer.

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Subject: Accounts Payable

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Q:

What is the impact of declaring a method as final?

Answer A method declared as final can't be overridden. A sub-class can't have the same method signature with a different implementation.
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Subject: Java

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Q:

So if md5( ) generates the most secure hash, why would you ever use the less secure crc32( ) and sha1( )?

Answer Crypto usage in PHP is simple, but that doesn’t mean it’s free. First off, depending on the data that you’re encrypting, you might have reasons to store a 32-bit value in the database instead of the 160-bit value to save on space. Second, the more secure the crypto is, the longer is the computation time to deliver the hash value. A high volume site might be significantly slowed down, if frequent md5() generation is required.
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Subject: PHP

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Q:

What is the purpose of UIWindow object?

Answer

The presentation of one or more views on a screen is coordinated by UIWindow object..

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Subject: IOS

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Q:

What Is a Session in PHP?

Answer

A PHP Session persist the user information to be used later. For example, user name, password, shopping item details. The session is temporary and will be removed soon after the user has left the web site. The session can be persisted for long term usage on databases like MySQL. Each session is identified by a unique Id number for every visitor. The first step to use PHP session is to start the session. The starting session must precede the operations like HTML or the other.


The statement session_start() starts the PHP session and registers the user’s information on the server.

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Subject: PHP

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Q:

What is Inbound and outbound marketing?

Answer

Inbound Marketing :


     Inbound marketing refers to marketing activities that bring visitors in, rather than marketers having to go out to get prospect's attention.


1. Communication is interactive and two-way.


2. Customers come to you via search engines, refferals and social media


3. Marketers provide value


4. Marketers seek to entertain and/or educate


5. It is a cheaper way of marketing


6. It is the new trend in marketing


7. People are more in control of what information they receive and how


 


Outbound Marketing


    In Outbound marketing the company contacts the customer through a message. It uses offline methods such as trade shows, mails to customers and calling customers.


1. Communication is one-way.


2. Customers are sought out via print, TV, radio, banner advertising and cold calls.


3. Marketers Provide little to no added value.


4. Marketers rarely seek to entertain or educate.


5. It is expensive compared to inbound marketing


6. It is one of the traditional methods of marketing.


7. In outbound marketing company is in control.

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Q:

What is the fastest type of JDBC driver ?

Answer

Type 4  (JDBC Net pure Java Driver) is the fastest JDBC driver.  Type 1 and Type 3 drivers will be slower than Type 2 drivers (the database calls are make at least three translations versus two), and Type 4 drivers are the fastest (only one translation).

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Subject: Java

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Q:

What is anonymous FTP and why would you use it

Answer

Anonymous FTP enables users to connect to a host without using a valid login and password. Usually, anonymous FTP uses a login called anonymous or guest, with the password usually requesting the user's ID for tracking purposes only. Anonymous FTP is used to enable a large number of users to access files on the host without having to go to the trouble of setting up logins for them all. Anonymous FTP systems usually have strict controls over the areas an anonymous user can access

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