Technology Questions

Q:

What is classloader?

Answer

The classloader is a subsystem of JVM that is used to load classes and interfaces.There are many types of classloaders e.g. Bootstrap classloader, Extension classloader, System classloader, Plugin classloader etc.

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Subject: Java

0 2178
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:

What is diamond problem?

Answer

The diamond problem is an ambiguity that can occur when a class multiply inherits from two classes that both descend from a common super class

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Subject: Java

0 2173
Q:

File contains 5 records say D,E,F,C,A-I want to copy D and A records only by using file-aid?

Answer

Go to file-aid copy option.Enter the from dataset to be copied and to dataset to which you want to copy.go to options. Enter 0 at Initial records to skip field.Then enter 3 at the no of records to skip field and 1 to no of records to select.press enter and PF3.

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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:

Difference between Swing and Awt ?

Answer

AWT are heavy-weight componenets. Swings are light-weight components. Hence swing works faster than AWT.

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Subject: Java

0 2172
Q:

Name any three PL/SQL exceptions?

Answer

Too_many_rows.


No_Data_Found.


Zero_Error.


 

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Subject: SQL

0 2171
Q:

What is the Advantage of AngularJS?

Answer

These are the advantages of AngularJS:



  • AngularJS provides capability to form Single Page Application in a very clean and maintainable method.

  • AngularJS provides data binding capability to HTML therefore giving user a rich and responsive experience.

  • AngularJS code is unit testable.

  • AngularJS uses dependency injection and build use of separation of concerns.

  • AngularJS provides reusable components.

  • AngularJS helps developer to writes less code and gets more functionality.

  • AngularJS, views are pure HTML pages, and controllers written in JavaScript do the business process.

  • AngularJS applications will run on all major browsers and good phones together with android and iOS based mostly phones/tablets.

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Subject: Web Technology

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