Interview Q&A

• How do I change the title of a framed document?

  The title displayed is the title of the frameset document rather than the titles of any of the pages within frames. To change the title displayed, link to a new frameset document using TARGET="_top" (replacing the entire frameset).

• What is XSL-FO

  A subcomponent of XSL used for describing font sizes, page layouts, and how information flows from one page to another.

• What is XSLTC

  A compiling version of XSLT.

• How can we submit a form without a submit button?

  If you don't want to use the Submit button to submit a form, you can use normal hyper links to submit a form. But you need to use some JavaScript code in the URL of the link.

• Explain the ternary conditional operator in PHP?

  Expression preceding the ? is evaluated, if it’s true, then the expression preceding the : is executed, otherwise, the expression following : is executed.

• What is meant by PEAR in php?

  PEAR is the next revolution in PHP. This repository is bringing higher level programming to PHP. PEAR is a framework and distribution system for reusable PHP components. It eases installation by bringing an automated wizard, and packing the...

• How to make a file encrypt and decrypt?

  You can use base64_encode and base64_decode for file encrypt and decrypt.

• What are the advantages of PHP over HTML?

  HTML is a client-side programming language, PHP is server-side and will get executed when called by the user. whereas HTML all alone may or may not get executed when loaded into the browser. PHP adds up to dynamicity of HTML a long way....

• what is difference between mysql_fetch_array(),mysql_fetch_row() and mysql_fetch_object()

  mysql_fetch_row ::Return row as aan enumrated array and each line contain a unique ID. mysql_fetch_array ::Return row as anassociative or an enumrated array or both which is default

• what is the url rewriting?how to rewrite the url?

  If you don't like having meaningless URL's for your visitors (i.e index.aspx?id=3&pid=3932), consider URL Re- writing. With URL rewriting, you can store all your content in the database while having user-friendly URL's.

• . What about non-XML resources?

  You can use the XPointer Framework with non-XML resources. This is especially effective when your resource is backed by some kind of a DBMS, or when you want to query a data model, such as RDF, and not the XML syntax of a representation...

• Can I encode mathematics using XML?

  Yes, if the document type you use provides for math, and your users’ browsers are capable of rendering it.It is also possible to use XSLT to convert XML math markup to LATEX for print (PDF) rendering, or to use XSL:FO.

• What is XSL-FO

  A subcomponent of XSL used for describing font sizes, page layouts, and how information flows from one page to another.

• I can't uncompress the zipped version of the specification

  If you are having problems unzipping a file, it may be that your system has already unzipped it for you during the download without removing the ".gz" suffix. You may have to rename the already unzipped file by hand.

• Where should I send comments about a specification?

  Each W3C Technical Report includes a "Status of this document" section near the front. In this section, you will find information about where to send comments.

• Where do I find the list of elements or attributes for specification X?

  Specifications index elements differently. Most specifications include one or more DTDs, or document type definitions. A DTD defines the syntax of a language in technical terms. Some XML specifications include XML Schema definitions; a sche...

• Where do I find the DTDs / Schemas for specification X?

  Each specification defines its own DTDs, often in an appendix of the specification. There is a list of links to various W3C-defined DTDs in the W3C site index.

• What do I have to do if I link to your libraries?

  If you use a library (like libwww) and include it in the source code, or compile/link to it, you must also include the copyright license. However, if you merely provide a compile option you are not obligated to include our license. Any subs...

• What is the STATUS of a W3C document?

  The STATUS of a W3C document is very important. It details its purpose, how the document was created or received, whether we are allocating resources to an activity related to the document, whether we have editorial control over the docume...

• Who holds the copyright on W3C documents?

  The original author of the document. Many documents are created by the W3C and we consequently hold the copyright. Owners who allow their works to be published on the W3C site retain the copyright, but agree to the W3C license for the redis...

• Which statements apply to specifications, Web pages, and software?

  IPR Notice and Disclaimers General web site copyright, trademark, and legal disclaimer statements. Document Notice/License Information on reproducing W3C work including notes, submissions, recommendations, proposed working recomm...

• What is the Principle Of Least Power

  The Semantic Web works on a principle of least power: the less rules, the better. This means that the Semantic Web is essentially very unconstraining in what it lets one say, and hence it follows that anyone can say anything about anything....

• So what is a “Semantic Web friendly format”, as you put it?

  This is where it gets a bit tricky… There are a number of “formats” suitable for the Semantic Web, the most popular of which is RDF/XML. It doesn’t really matter that there are other formats also in use; nearly all of them are based on the...

• What is the Power Of Semantic Web Languages?

  The main power of Semantic Web languages is that any one can create one, simply by publishing some RDF that describes a set of URIs, what they do, and how they should be used. We have already seen that RDF Schema and DAML are very powerful...

• What is Inference?

  The principle of "inference" is quite a simple one: being able to derive new data from data that you already know. In a mathematical sense, querying is a form of inference (being able to infer some search results from a mass of data, for ex...

• What is URI - Uniform Resource Identifier

  A URI is simply a Web identifier: like the strings starting with "http:" or "ftp:" that you often find on the World Wide Web. Anyone can create a URI, and the ownership of them is clearly delegated, so they form an ideal base technology wit...

• what the Semantic Web is.

  The Semantic Web is a vision, that hopes to join together dispersed bits of data on the internet, very much like web pages are currently joined (linked) together. As with the current web of pages, anyone can create data on the Semantic Web,...

• What’s the difference between primary key and unique key?

  This is an index that cannot be NULL, Primary Keys are used in building relationships between tables in a database. (an index is automatically created on the primary key). The difference between primary and ordinary keys is that there can b...

• What is a URL?

  t stands for "universal resource locator". This is the address typed in to view your web page on the Internet. For example, you would type in to access our home page.

• How do you configure the maximum number of processes in Apache?

  This arrangement uses more advanced mod_rewrite features to get the translation from virtual host to document root from a separate configuration file. This provides more flexibility but requires more complicated configuration.

• Do I really have to learn HTML to design Web pages?

  Print designers don't need to learn PostScript. Their page layout editors, Quark XPress, Adobe InDesign, etc., take care of all that. The PostScript page description language has been around since the mid '80s and can produce highly accurat...

• What do I have to do to get my site listed in search engines?

  Eventually, every site gets visited and indexed by search engine 'robots', but if you want it done quickly, you should submit your site URL to Google. Google is by far the most popular search facility and unless you want to target a specifi...

• How can I stop people stealing images from my page?

  If you have an image that somebody really wants on your Web page, there is absolutely nothing you can do to stop them doing a screen capture and cropping the image. Disabling the right mouse button (on PCs) is totally futile because pressin...

• How can I make sure that my pages look the same in every browser?

  The facetious answer is to create your complete page in an image editor and make one whopping, great GIF or JPEG of it. That's the only way you will get the same layout in every browser, but it has so many drawbacks in terms of file size an...

• How do I track how many hits my website gets?

  There are a few things that need to be cleared in terms of terminology: * Hits - this simply refers to the number of 'elements' loaded on your site. If one page has five images in it, viewing that page once adds 6 hits (one page + fi...

• What is the difference between UNIX hosting and Windows hosting?

  If you need to support Microsoft products such as ASP, MS Access, or VBScript, then Windows hosting would be better. Furthermore, if you are comfortable with IIS and do not have the time to understand how UNIX works, Windows hosting would a...

• Can I run my own software on my site?

  This depends on a web host and a plan. Most plans will allow running scripts in languages such as Perl or PHP. Some plans will also allow you to compile program in C/C++ and run them. Some Unix plans will also allow you to run "cron" whi...

• What is domain parking?

  Domain parking lets you cheaply reserve a domain name for future use and display an "under construction" default page on it. You can register a domain and not park it anywhere but then your site will simply be inaccessible until you get a...

• What is full-service web hosting?

  "Full-service" can refer to a variety of services offered in addition to providing web space, transfer, and emails for a web site. For example, it could be 24/7 toll free phone support, web design services, or web site content maintenance...

• How do I upload my site?

  he main method of uploading files to your site's account is by using FTP. When you sign up with a host, you will probably get an FTP account that lets you access files in your account (usually ftp.yoursitename.com, your main account name a...

• What is uptime?

  Uptime is the percentage of time that a web site is working. For example, if some host has an uptime average of 99.86%, this means that your site will be down for a total about 1 hour each month. We monitor uptime of customer websites of...

• What is a Domain Name?

  A domain name is a word along with a TLD that uniquely identifies your website.

• What is Virtual Hosting?

  Also known as shared hosting, this form of web hosting should suffice for most everyone. Virtual hosting simple refers to the fact that your site is on one server, and that this server hosts mulitple sites. You are virtually shared - your...

• What is Web Hosting?

  Web hosting is the act of renting space and bandwidth through a company so that you may publish your web site online.

• What is phishing?

  Phishing is a form of fraud. Phishers pose as legitimate organizations in an email, over the phone, in person, on a website, or in a pop-up window to get you to disclose personal information, such as your credit and debit card numbers, acco...

• What is SSL?

  SSL (Secure Sockets Layer) is a secure communications protocol used by browsers, websites, and applications to protect information sent over the internet. SSL protocol uses encryption and authentication technologies to make sure only the in...

• What are HTTP and HTTPS?

  HTTP (HyperText Transfer Protocol) is a protocol used to send data over the internet. HTTPS (HyperText Transfer Protocol using Secure Socket Layer) is a protocol that encrypts data to send it over the internet more safely. When you enter a...

• What is a safer web browser?

  A safer browser has the following characteristics: * Latest version * Automatic software patches and upgrades * Anti-phishing functionality to notify you when you try to access a suspected fake website * 128-bit encryp...

• What is a web browser?

  A web browser is a software application for viewing webpages. Microsoft Internet Explorer, Mozilla FireFox, Opera, and Apple Safari are the most common web browsers.

• How do I change my home page?

  Internet Explorer for Windows 1. Browse normally to the web page you want as your home page. 2. Pull down the "Tools" menu of Internet Explorer. 3. Select "Internet Options." 4. The "General" tab appears. 5. You'll see the "Home pa...