Interview Questions

Q:

Which tag is used to display the numbered list?

 

1) <ol> </ol>    2) <li></li>     3) <ul> </ul>    4) <dl> </dl>

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: A) 1

Explanation:

Use HTML tag <ol> element to define an ordered list.

Use the HTML type attribute to define the numbering type. Use the HTML <li> element to define a list item. Use the HTML <dl> element to define a description list.

 

Hence, as numbered list come under ordered list tag <ol> tag is used for numbered list.

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Q:

void waitForSignal() {

Object obj = new Object();

synchronized (Thread.currentThread()) {

obj.wait();

obj.notify();

}

}

Which statement is true?

A) This code can throw an InterruptedException. B) This code can throw an IllegalMonitorStateException.
C) This code can throw a TimeoutException after ten minutes D) All the above
 
Answer & Explanation Answer: B) This code can throw an IllegalMonitorStateException.

Explanation:

It will throw  IllegalMonitorStateException.

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Q:

What is IMS (DB/DC)?

Answer

IMS (Information Management System) is IBMs hierarchical database management system. It has mainly two components: IMS DB and IMS DC (Also know as IMS TM)


IMS DB - IMS/Database Manager as the name implies manages the IMS databases. It is used for physical storage creation and management and data retrieval.


IMS DC / IMS TM - IMS/Data Communications or IMS/Transaction Manager handles online transaction processing system.

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Q:

What is DHTML? What are the features of DHTML?

Answer

DHTML stands for Dynamic HTML. The first thing that we need to clear about DHTML is that it is neither a language like HTML, JavaScript etc. nor a web standard. It is just a combination of HTML, JavaScript and CSS. It just uses these languages features to build dynamic web pages. DHTML is a feature of Netscape Communicator 4.0, and Microsoft Internet Explorer 4.0 and 5.0 and is entirely a "client-side" technology.  


Features of DHTML:


- Simplest feature is making the page dynamic.


- Can be used to create animations, games, applications, provide new ways of navigating through web sites.


- DHTML use low-bandwidth effect which enhance web page functionality.


- Dynamic building of web pages is simple as no plug-in is required.


- Facilitates the usage of events, methods and properties and code reuse. 

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Q:

Javascript is interpreted by

A) Server B) Object
C) Client D) None of the above
 
Answer & Explanation Answer: C) Client

Explanation:

JavaScript is an interpreted language, not a compiled language. A program such as C++ or Java needs to be compiled before it is run.

The source code is passed through a program called a compiler, which translates it into bytecode that the machine understands and can execute.

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Q:

 What is the string contained in s after following lines of code?

StringBuffer s = new StringBuffer(“Hello”); s.deleteCharAt(0);  ?

A) llo B) Hllo
C) ello D) H
 
Answer & Explanation Answer: C) ello

Explanation:

deleteCharAt() method deletes the character at the specified index location and returns the resulting StringBuffer object.

So after deleting the character at 0 ie 'H', the string returns 'ello' as the output.

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Q:

How much time needs to pass for an A/R account to be considered delinquent?

Answer

After 90 days of the due date

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Q:

A subquery in an SQL SELECT statement is enclosed in

A) [ ] B) { }
C) < > D) ( )
 
Answer & Explanation Answer: D) ( )

Explanation:

A subquery in an SQL SELECT statement is enclosed in parenthesis (...).

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