Interview Questions

Q:

A data warehouse is composed of

A) current data B) internal and external data sources
C) historical data from legacy systems D) historical & current data
 
Answer & Explanation Answer: C) historical data from legacy systems

Explanation:

A data warehouse is a relational database that is designed for query and analysis rather than transaction processing. It usually contains historical data that is derived from transaction data, but it can include data from other sources. Data warehouses are designed to help you analyze your data.

Report Error

View Answer Report Error Discuss

Filed Under: Oracle
Job Role: Database Administration , IT Trainer

3 3036
Q:

What are the restrictions when overriding a method ?

Answer

Overridden methods must have the same name, argument list, and return type (i.e., they must have the exact signature of the method we are going to override, including return type.)


The overriding method cannot be less visible than the method it overrides( i.e., a public method cannot be override to private).


The overriding method may not throw any exceptions that may not be thrown by the overridden method

Report Error

View answer Workspace Report Error Discuss

Subject: Java

0 3035
Q:

What is Cascade and Drill Through? What is the difference between them?

Answer

Cascade:


- Cascade process involves taking values from various other prompts.


- The result is a single report.


- The result is used when a criteria is to be implemented.


 


Drill Through:


- Drill Through process is implemented when navigation from summary to detailed information.


- Drill Through has a parent and a child report.


- Data of another report can be seen based on the current details of data.

Report Error

View answer Workspace Report Error Discuss

0 3032
Q:

How Do You Manage to Balance Career and Family?

Answer

If you're attempting to give an answer that is as unrevealing as possible, try something like this:


  " I have been a dedicated,loyal,hardworking employee throughout my career and nothing in my personal life-family obligations, hobbies, or volunteer work-has ever affected my performance. Nor would I ever expect it to." 

Report Error

View answer Workspace Report Error Discuss

3 3031
Q:

How do you define a sort file in JCL that runs the COBOL program?

Answer

Use the SORTWK01, SORTWK02,..... dd names in the step. Number of sort datasets depends on the volume of data being sorted, but a minimum of 3 is required.

Report Error

View answer Workspace Report Error Discuss

0 3030
Q:

Which programming language was removed from the Visual Studio family when VB.net was released?

Answer

Visual Foxpro was part of Visual Studio 6.0.


It was excluded in the .Net version and was released as an independent programming language.

Report Error

View answer Workspace Report Error Discuss

0 3030
Q:

onclick="window.open()":This attribute of HTML control is used to open a page in new window

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

To open a page in a new window, you have to use client script using onclick="window.open()" attribute of HTML control.

Report Error

View Answer Workspace Report Error Discuss

Subject: .NET
Job Role: Software Architect

0 3025
Q:

What is Interpreter in Java?

Answer

  • An Interpreter is a program that reads in as input a source program, along with data for the program, and translates the source program step by step.


 


The Java interpreter decodes each lines bytecode and runs a series of machine instructions for that bytecode. The JVM takes the byte code and generates machine code. The byte code is compiled to machine code, and the machine code is executed.

Report Error

View answer Workspace Report Error Discuss

7 3024