Technology Questions

Q:

What does coalescing a tablespace do?

Answer

Coalescing is only valid for dictionary-managed tablespaces and de-fragments space by combining neighboring free extents into large single extents.

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Q:

What are presentation, application and database servers in SAP R/3?

Answer

The application layer of an R/3 System is made up of the application servers and the message server. Application programs in an R/3 System are run on application servers. The application servers communicate with the presentation components, the database, and also with each other, using the message server. All the data are stored in a centralized server. This server is called database server.

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Subject: SAP

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Q:

Why interface data is final?

Answer

bcoz interface does not contains any initializers and constructors to initialize its data members.

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Subject: Java

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Q:

How to use SimpleDB with Amazon?

Answer

Every architecture rely on a database that is easy to maintain and gets easily configured Amazon uses the database by the name SimpleDB. This is the database that is used for cloud architecture to track the statuses of the components. The component of the system are asynchronous and discrete, it requires capturing the state of the system so that in any failure the user can easily revert back to its normal configuration. SimpleDB is schema-less database and there is no need to define the structure before the creation of any data. Every controller in the database defines their own structure and link the data to a job.

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Subject: Cloud Computing

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Q:

What is the functionality of md5 function in PHP?

Answer

Calculate the md5 hash of a string. The hash is a 32-character hexadecimal number. I use it to generate keys which I use to identify users etc. If I add random no techniques to it the md5 generated now will be totally different for the same string I am using.

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Subject: PHP

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Q:

What is Monkey testing?

Answer

Monkey testing is a type of Black Box Testing used mostly at the Unit Level. In this tester enter the data in any format and check the software is not crashing. In this testing we use Smart monkey and Dumb monkey.


- Smart monkeys are used for load and stress testing, they will help in finding the bugs. They are very expensive to develop.


- Dumb monkey, they are important for basic testing. They help in finding those bugs which are having high severity. Dumb monkey are less expensive as compare to Smart monkeys.


Example: In phone number filed Symbols are entered.

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Subject: QA Testing

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Q:

What is static member class?

Answer

Static member class is a class defined inside outer class with static modifier.


EX:


Class A {  //top level class or outer class


    .....


    static class B {  //static member class


    }


   .....


}

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Subject: Java

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Q:

What are the new attributes provided in HTML5 for "form" tag ?

Answer

The new attributes provided in HTML5 for <form> are: 


a.) autocomplete


– It specifies if a form or input field should have autocomplete as on or off. 


– If autocomplete is on, the browser is able to fill the values based on the values filled by the user earlier. 


– autocomplete works for following input types: text, search, url, tel, email, password, datepickers, range, and color. 


b.) novalidate


- This is a boolean attribute. 


- When present, it signifies that the form-data should not be validated when submitted.

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Subject: Web Technology

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