Interview Questions

Q:

X implements Y extends Z

A) X can be class Y,Z are interfaces B) X is an interface Y,Z are classes
C) X,Y are classes Z is an interface D) Complilation error
 
Answer & Explanation Answer: D) Complilation error

Explanation:

It is a compilation error it should be X extends Y implements Z

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Filed Under: Java
Job Role: IT Trainer

3 5384
Q:

What are different data types used in cloud computing?

Answer

Cloud computing is going all together for a different look as it now includes different data types like emails, contracts, images, blogs, etc. The amount of data increasing day by day and cloud computing is requiring new and efficient data types to store them. For example if you want to save video then you need a data type to save that. Latency requirements are increasing as the demand is increasing. Companies are going for lower latency for many applications.

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Subject: Cloud Computing

0 5376
Q:

which keyword is used to define the macros in c++?

A) macro B) define
C) #define D) none of these
 
Answer & Explanation Answer: C) #define

Explanation:
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Filed Under: C++

1 5373
Q:

What are the advantages of LINQ ?

Answer

- Debugging is esy.
- Reduces Development Time.
- LINQ offers IntelliSense which means writing more accurate queries easily.

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Subject: Oracle
Job Role: Analyst , IT Trainer

3 5362
Q:

How do we create a DHTML drop-down menu?

Answer

- In order to create a DHTML drop down menu we need JavaScript API. The API (Application Programming Interface) consists of core set of cross-browser JavaScript functions to make DHTML programming easy and quick. This API enables moving and hiding page elements as well as acts as getter and setter of page elements attributes.


- Second we define on image object and off image object and string containing the URL of the "off" version.


- Then we create the menu items, label items and sub-menu items. If we wish we can use images also.


- Then we need to define our own global variables that will be used by the menu. Using global goes against oops design but makes sharing data easier.


- Create the menubar object, adding the menu labels and writing menubars.


- Create menu object, adding menu items and writing menus.


- Hiding and displaying the menus and attaching stylesheet.

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Subject: Web Technology

5 5358
Q:

What is meant by pure virtual function?

A) Function which does not have definition of its own. B) Function which does have definition of its own.
C) Function which does not have any return type. D) None of the mentioned
 
Answer & Explanation Answer: A) Function which does not have definition of its own.

Explanation:

As the name itself implies, it have to depend on other class only.

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Filed Under: C++

2 5349
Q:

How we get IP address of client,previous reference page etc?

Answer

By using $_SERVER['REMOTE_ADDR'], $_['HTTP_REFERER'] etc.

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Subject: PHP

0 5340
Q:

What is the IDD in IDMS?

Answer

IDD is the Integrated Data Dictionary. It contains information about the elements, record types, sets, maps and dialogues within the database.

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1 5316