Internet Programming Interview Questions And Answers
Question: 1. Define Xhtml ?
Answer:
XHTML(Extensible Hybertext Markup Language) is a Markup language that specifies the layout of the textual content this is displayed in an internet browser such that microsoft’s Internet Explorer or Netscape.It is pass between HTML and XML.
Question: 2. What Is Key Issue Of Xhtml?
Answer:
A key difficulty whilst the use of XHTML is the separation of the presentation of a file from the structure of the statistics inside the document.
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Question: 3. What Are The Important Elements Of An Xhtml Document?
Answer:
Important elements of an XHTML record are the html element ,the head element and the frame detail.
Question: four. Difference Between Html And Xhtml?
Answer:
In HTML,it’s miles to specify the file’s content material, structure and formatting.Formatting would possibly specify wherein the browser located an detail in a web site or the fonts and hues used to show an detail.
In XHTML, permits best a document’s content material and structure to seem in a valid XHTML record, and no longer its formatting.Normally such formatting is specified with cascading style sheets.
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Question: 5. Rules For Writing Xhtml Document ?
Answer:
Elements and Attributes must be written in lowercase.
All factors have to be closed.
All files have to have Doctype.
All factors have to be nicely nested.
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Question: 6. Define Headers In Xhtml ?
Answer:
XHTML gives six headers(h1 thru h6) for specifying the relative importance of information.Header detail h1 is considered the maximum giant header and is rendered in a larger font than the opposite 5 headers. Each successive header element(h2..H6)is rendered in a steadily smaller font.
Question: 7. What Is The Use Of Linking Element In Xhtml?
Answer:
One of the most vital XHTML capabilities is the hyperlink (Linking element) which references(or hyperlinks) to other resources, together with XHTML files,internet pages, a file or an electronic mail deal with.
Links are created the use of the a(anchor element).The maximum critical characteristic for the a detail is href which specifies the useful resource being connected. Ex:yahoo.
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Question: 8. Explain The Use Of Img Element ?
Answer:
An img detail is used to insert an photo in the file .The image document’s place is specified with the img detail’s src attribute.
Optional attributes width and height specify the photo’s width and peak.
Question: nine. What Is The Use Of Alt Attribute In Img Element?
Answer:
The alt attribute in img detail makes webpages extra on hand to users with disabilities, particularly people with vision mpairments who use text primarily based browser.
The speech synthesizer software program software “speaks” the alt characteristic’s value so that the consumer is aware of what the browser is displaying.
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Question: 10. What Is The Difference Between Unordered List Element And Ordered List Element?
Answer:
The undered list element ul creates a listing wherein every item inside the listing starts offevolved with a bullet symbol(referred to as disc).Each access in an undered listing is a li(listing object)element.
The ol (ordered listing detail) creates a list wherein each object starts offevolved with a range of.
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Question: eleven. What Are The Three Sections In Xhtml Table?
Answer:
A table has three awesome sections- head, frame and foot.
The head phase is described with a thead element which incorporates header records along with column names.
The foot section is described with tfoot detail.
The frame phase or desk body consists of the table’s number one information.
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Question: 12. Define Forms In Xhtml ?
Answer:
XHTML presents paperwork for amassing records from users.Forms incorporate visual components which includes buttons that customers click on.
Forms may include non-visual components known as hidden inputs which might be used to store any statistics which includes e-mail ddressesand XHTML record file names used for linking.
A form begins with the form element.Attribute approach specifies how the shape’s statistics is sent to the server.
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Question: thirteen. Define Imagemap ?
Answer:
Image maps are described with map elements.Attribute identification identifies the picture map.Hotspots are defined with the place detail.Attribute href specifies the hyperlink’s target.Attributes form and co-ords specify the hotspot’s shape and co-ordinates and alt gives alternative text.
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Question: 14. Define Frames In Xhtml ?
Answer:
Frames allow the browser to display more than one XHTML document concurrently.
The frameset detail informs the browser that the web page incorporates rames.
XHTML presents the no frames element to specify alternative content material for browsers that don’t assist frames.
Frame set element is used to create extra complex layouts in an internet page by using nesting framesets.
Question: 15. What Is The Use Of Summary And Caption Element In Table Element?
Answer:
Element precis summarizes the table’s contents and is utilized by speech gadgets to make the table extra available to customers with isual impairments.
Element caption describes the table’s content. The text inside the tag is rendered above the table in most browsers.
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Question: 16. What Is The Use Of Internal Hyperlink?
Answer:
Internal Linking is a mechanism that enables the person to jump among places inside the identical document.
Internal linking is useful for long files that include many sections.
Clinking an inner hyperlink allows customers to find a segment with out scrolling thru whole report.
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Question: 17. Define Css ?
Answer:
CSS is Cascading Style Sheets that permit file authors to specify the presentation of factors on a web site separately from the shape of the document.
This separation of shape from presentation simplifies preserving and enhancing a file’s format.
Define :Inline Style Sheet and Embedded Style Sheet.
Inline Style Sheet:-Inline Styles that declare an character detail’s format using the XHTML characteristic Style.
Embedded Style Sheet:-Embedded style sheets enable a web-web page author to embed an entire css record in an XHTML record’s head section.
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Question: 18. What Is The Use Of External Linking Of Style Sheets?
Answer:
External linking of favor sheets can create a uniform search for a internet site.Separate pages can all use the equal styles.Modifying a unmarried fashion sheet file makes adjustments to patterns throughout a whole website.
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Question: 19. What Is The Difference Between Absolute Positioning And Relative Positioning In Css?
Answer:
Absolute positioning:-Which gives authors extra manipulate over how report elements are displayed. Specifying an detail’s function as absolute removes the element from the regular flow of factors on the page, instead positioning it consistent with the distance from the pinnacle, left, proper or bottom.
Relative positioning:- In which factors are positioned relative to different factors.Relative positioning maintains elements inside the trendy glide of elements on the page,so positioning is relative to different elements inside the float.
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Question: 20. What Is The Use Of Z-index In Position Property Of Css?
Answer:
The Z-index property permits a developer to layer overlapping elements .Elements that have better Z-index price are displayed in front of elements with decrease z-index values.
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Question: 21. Define Margin And Padding In Css ?
Answer:
Margin:-The Margin assets determines the distance among the element’s area and any outdoor textual content.Margins for person sides of an detail can be designated with the aid of the use of margin-top,margin-right,margin-left,margin-backside.
Padding:- The padding assets determines the distance between the content interior an detail and the threshold of the element.Padding additionally can be set for every side of the container using padding-top,padding-right,padding-left,padding-backside.
Question: 22. What Is The Use Of Class Attribute In Css?
Answer:
The elegance characteristic allows a couple of magnificence to be assigned to an XHTML element by using keeping apart every class call from the next with a space.
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Question: 23. Define Object Model In Dhtml ?
Answer:
The Dynamic HTML Object Model offers Web authors amazing manage over the presentation of their pages via giving them access to all of the factors on their Web web page.The complete Web web page factors,forms,frames tables ,and so on is presentated in an object hierarchy.Using scripting , an author is capable of retrieve and adjust any houses or attributes of the website dynamically.
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Question: 24. How To Refer An Element In Dhtml?
Answer:
The simplest manner to reference an detail is through identity characteristic.The element is replaced as an object and its numerous XHTML attributes end up houses that can be manipulated with the aid of scripting.
Ex:
In script: