Sawaal

 Web Technology Questions

Popular Latest Rated
Q:

Is Node.js is a single threaded application?

Answer

Node.js uses a single threaded model with event looping.

Report Error

View answer Workspace Report Error Discuss

Subject: Web Technology
Job Role: Software Architect

0 2515
Q:

In HTML document the tags are

A) hidden keywords B) used to display the content
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

Hypertext Markup Language (HTML) is the standard markup language for creating web pages and web applications.

HTML tags are the hidden keywords within a web page that define how your web browser must format and display the content. Most tags must have two parts, an opening and a closing part. For example, <html> is the opening tag and </html> is the closing tag.

Report Error

View Answer Report Error Discuss

Filed Under: Web Technology
Job Role: IT Trainer

8 2512
Q:

What is a prompt box?

Answer

A prompt box allows the user to enter input by providing a text box.

Report Error

View answer Workspace Report Error Discuss

Subject: Web Technology

1 2511
Q:

How are documents accessed and manipulated in XML?

Answer

The XML DOM (document object model) is used the access and management of xml. It is a platform that is language neutral and allows a program or a script to dynamically access a document. It also allows the updation of content as well as the structure and style of the document. It is responsible for the defining of the object and properties of all xml elements as well as to define the methods for their access. There are various methods that can be used in xml dom such as:


- getElementsByTagName: used to call a specific user defined tag.


- setAttribute: used to change the value of an existing attribute.


- appendChild: used to add a child node to another node.


 

Report Error

View answer Workspace Report Error Discuss

Subject: Web Technology

1 2474
Q:

What are the privacy and security features being provided by web browsers?

Answer

- Web browser supports HTTP secure method that allows more security for the sites that are involved in day to day basis transaction. 


- Security offers quick and easy way to remove the unwanted material or the things that are stored without permission like cache, cookies and history. 


- Security is being provided by the use of blockers that blocks unwanted access to the websites from the outside. 


- Web browser uses other features like disabling of JavaScript and pop up blockers to block any unwanted scripts or messages to run on the system.


- Web browser also uses the security concerns in regard of blocking the access to the secure sites that provides money transfer facilities, etc.

Report Error

View answer Workspace Report Error Discuss

Subject: Web Technology

3 2445
Q:

Explain three important components of Dynamic HTML authoring - Positioning, Style modifications and Event handling

Answer

- Positioning: Is some what where we need the object to be placed in the graphical view i:e on screen. If we talk in DHTML sense then we have two types of positioning: Relative and Absolute.


Relative Positioning: Relative positioning is the same as the current HTML3 layout and is best reserved for situations where you want to be sure that the content will revert to this default inside a document that also uses absolute positioning.


Absolute Positioning: In DHTML absolute positioning means that the object will remain at the same position regardless of the condition of other elements and the size of the browser. In simple languages if an object/image is absolutely positioned (STYLE="position: absolute;"), with an offset of 150 pixels to the right and 250 pixels down from the left-hand corner of the browser screen then it will avail this position what ever the circumstances may be.


- Style Modifications: Style modification indicates the changes in the presentation or the view part that are being made in web page. This part comes under Cascading Style Sheet where the user style his web page by using the attributes and the tags that are pre-defined in CSS.


- Event Handling: As explained earlier Events is the beating heart of any JavaScript application. For handling event in DHTML we attach event handler to HTML elements. The event handler waits until a certain event, for instance a click on a link, takes place. When it happens it handles the event by executing some JavaScript code that has been defined by us. After it has executed the code the event handler comes to its initial state and waits for the user to fire any event. Hence to handle events in DHTML we need to register an event handler.

Report Error

View answer Workspace Report Error Discuss

Subject: Web Technology

0 2428
Q:

What does window.history object?

Answer

The window.history object can be written without the window prefix.
To protect the privacy of the users, there are limitations to how JavaScript can access this object.
Some methods:


    history.back() - same as clicking back in the browser
    history.forward() - same as clicking forward in the browser

Report Error

View answer Workspace Report Error Discuss

Subject: Web Technology

0 2298
Q:

What is the difference between an alert box and a confirmation box?

Answer

An alert box displays only one button which is the OK button whereas the Confirm box displays two buttons namely OK and cancel.

Report Error

View answer Workspace Report Error Discuss

Subject: Web Technology

0 2286