Interview Questions

Q:

What is difference between ARP and RARP?

Answer

The address resolution protocol(ARP) is used to associate the 32 bit IP address with the 48 bit physical address, used by a host or a router to find the physical address of another host on its network by sending a ARP query packet that includes the IP address of the receiver.


The reverse address resolution protocol (RARP) allows a host to discover its Internet address when it knows only its physical address.

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Q:

How can u write programmatically value help to a field without using search help and match code?

Answer

By using two types of function modules to be called in SAP Script:

1)HELP_OBJECT_SHOW_FOR_FIELD
2)HELP_OBJECT_SHOW

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Subject: ABAP

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Q:

Which kind of inheritance is not supported directly through classes in java?

A) Multilevel B) Multiple
C) Single D) Hirarcheal
 
Answer & Explanation Answer: B) Multiple

Explanation:

Multiple inheritance is not supported directly but it is achieved through the concept of Interface

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Filed Under: Java
Job Role: Software Architect

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Q:

What is the difference in responsibilities of Programmers and QA analyst?

Answer

The differences in responsibilities are listed below:


 


- QA is concern for Process Quality and Programmers are concern for Product Quality.


- QA ensure that the processes used for developing the product of high quality where as programmers used these processes so that end product is of good quality.


- Processes are decided by QA. Programmers are supposed to follow the processes so that they can produce a good quality product.


- Any issue found during execution of process by the programmers is communicated to the QA so that they can improve the process.

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Subject: QA Testing

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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

0 3215
Q:

Managing direct and online marketing :

What is direct marketing? Give some examples.

Answer

In direct marketing, there is a direct interaction of the customers with the seller without any intermediaries. Here, the role of the intermediaries is nil. The medium used is more direct using telephone, mail, internet where the seller can directly reach out to the consumer. Examples of such marketing include telemarketing, email, voicemail marketing, door-to-door selling etc. This kind of marketing is more time saving as the problem of distance which may otherwise exist between the buyer and seller is eliminated and is also cost effective as it minimizes commuting costs.

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Q:

Explain the difference between data mining and data warehousing.

Answer

Data mining is a method for comparing large amounts of data for the purpose of finding patterns. Data mining is normally used for models and forecasting. Data mining is the process of correlations, patterns by shifting through large data repositories using pattern recognition techniques.


Data warehousing is the central repository for the data of several business systems in an enterprise. Data from various resources extracted and organized in the data warehouse selectively for analysis and accessibility.

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Q:

What is advertising?

Answer

Advertising is defined as a paid form of communication that reaches the target audience through mass media to provide product/service and brand related information.  

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