INDUCTION PROGRAM FOR IT ENGINEERS

1. Collect at least 10 programming languages other than c, c++, vb and java?

ABAP, APL, ABSYS, ABSET, ABLE, Visual j#, Visual j++, Visual Objects, SOAP, SML, Oxygen, GAP.

2. Write at least 10 programming languages used for building dynamic websites? C, C++, Java, C#, Visual Basic, CCI, CMM, Lisp, Lingo, JavaScript.

3. Write down list of 10 Web servers along with the languages they support?

4. Give at least 10 databases? Air Facility system, Benchmark Dose Software, Data Finder, Facility Registry system, IMES software, Land view, Mobile Models, online tracking information system.

5. Give at least 10 Web servers? Apache, Apache tomcat, Apache HTTP, Klone, lighttpd, Xitami, Zeus, IIS, Absyss, and Jigsaw.

6. What is IIS? What are the features of IIS? Internet Information Services (IIS) – formerly called Internet Information Server – is a web server application and set of feature extension modules created by Microsoft for use with Microsoft Windows. IIS 7.5 supports HTTP, HTTPS, FTP,FTPS, SMTP and NNTP. It is an integral part of Windows Server family of products, as well as certain editions of Windows XP, Windows Vista and Windows 7. IIS is not turned on by default when Windows is installed.

Features:

. HTTP modules – Used to perform tasks specific to HTTP in the request-processing pipeline, such as responding to information and inquiries sent in client headers, returning HTTP errors, and redirecting requests. . Security modules – Used to perform tasks related to security in the request-processing pipeline, such as specifying authentication schemes, performing URL authorization, and filtering requests. . Content modules – Used to perform tasks related to content in the request-processing pipeline, such as processing requests for static files, returning a default page when a client does not specify a resource in a request, and listing the contents of a directory. . Compression modules – Used to perform tasks related to compression in the request- processing pipeline, such as compressing responses, applying Gzip compression transfer coding to responses, and performing pre-compression of static content. 7. Name at least 5 operating systems used for desktop computing?

AIX (Advanced Interactive executive) - a proprietary (i.e., commercial) flavor (i.e., variant) of UNIX launched by IBM in 1990 for use on its mainframe computers.

Amiga - launched with the pioneering Amiga personal computer in 1985 and continues to be developed today for the PowerPC processor. Amiga features an elegant GUI (graphical user interface) together with some of the flexibility of Unix-like operating systems.

BeOS - developed by Be Incorporated in 1990 as a media operating system that was optimized for digital media (e.g., digital audio, digital video and three-dimensional graphics). BeOS has some Unix-like characteristics, including its use of the bash (the default on Linux) command shell and its directory structure, but it was written in entirely new code. The loyal user base was very disappointed when the company failed commercially, and thus several open source projects, including beunited.org, are under way that are aimed at recreating and updating (e.g., new video drivers) BeOS.

Darwin - an open source derivative of 4.4BSD1 (Berkeley Software Distribution Version 4.4) that serves as the core for the Macintosh OS X. It was originally released in March 1999. There is also a GNU version of Darwin, which is called GNU-Darwin.

FreeBSD - the most popular of the BSD operating systems, accounting for approximately 80 percent of BSD installations (at least until Darwin came onto the scene). FreeBSD was begun in early 1993 based on 4.3BSD, and the first version, 1.0, was released in December of that year.

Free DOS - begun in 1994 by Jim Hall with the goal of becoming a complete, free and fully MS- DOS compatible operating system for x86 (i.e., Intel-compatible) CPUs (i.e., central processing units).

GNU/Hurd - has been under development by Richard Stallman and his Free Software Foundation (FSF) since 1990. The core component, the Hurd (Hird of Unix-replacing daemons) kernel (i.e., the core of the operating system), is still not completed because of its very ambitious goal: to surpass Unix-like kernels in functionality, security and stability while remaining largely compatible with them.

HP-UX - a proprietary flavor of UNIX developed by Hewlett-Packard for its HP 9000 series of business servers. HP-UX 1.0 was released in 1986.

IRIX - a proprietary flavor of UNIX introduced by Silicon Graphics, Incorporated (SGI) in 1982 for applications that use three dimensional visualization and virtual reality.

8. What is assembly language? An assembly language is a low-level programming language for computers, microprocessors, microcontrollers, and other programmable devices in which each statement corresponds to a single machine language instruction. An assembly language is specific to a certain computer architecture, in contrast to most high-level programming languages, which may be more portable.

9. What are main frames? What is the popular programming language supported by main frames?

A mainframe is simply a very large computer. And totally different from what you have on your desk. Don't say: what seems to be a mainframe today is on your desktop tomorrow. Apart from the CPU's (processors) that is far from true. Each computer language evolved separately, driven by the creation of and adaptation to new standards. In the following sections we describe several of the most widely used computer languages supported by z/OS • Assembler • COBOL • PL/I • C/C++ • Java • CLIST • REXX™.

10. What is the operating system popularly used on mainframes?

Most of this information center teaches the fundamentals of z/OS®, which is IBM's foremost mainframe operating system. It is useful for mainframe students, however, to have a working knowledge of other mainframe operating systems. One reason is that a given mainframe computer might run multiple operating systems. For example, the use of z/OS, z/VM®, and Linux® on the same mainframe is common.

In addition to z/OS, four other operating systems dominate mainframe usage: z/VM, z/VSE™, Linux for System z®, and z/TPF.

11. What are mini frames /Mid-frames? The mini frames are basically the same as the bigger ones, but mini! They are adorable and I can’t wait to see more made. The group of frames below was sort-of a ‘test run’ for the Mini Frames.

12. What is ERP? Give popular ERP applications?

Enterprise resource planning (ERP) systems integrate internal and external management information across an entire organization, embracing finance/accounting, manufacturing, sales and service, customer relationship management, etc. ERP systems automate this activity with an integrated software application. Their purpose is to facilitate the flow of information between all business functions inside the boundaries of the organization and manage the connections to outside stakeholders ERP applications: • Reduced IT software support requirement • Reduced hardware and servers • Intuitive, configurable system interfaces • Reduction in software training • Customizable open source code 13. What are 1-tier, 2-tier, 3-tier applications? Give examples?

Two-tier client/server architectures have 2 essential components 1. A Client PC and 2. A Database Server 2-Tier Considerations:

• Client program accesses database directly • Requires a code change to port to a different database • Potential bottleneck for data requests • High volume of traffic due to data shipping

This is an example of 2-tier architecture. The two tiers are:

1. Data server: the database serves up data based on SQL queries submitted by the application. 2. Client application: the application on the client computer consumes the data and presents it in a readable format to the student.

Now, this architecture is fine, if you've got a school with 50 students. But suppose the school has 10,000 students. Now we've got a problem. Why?

Because every time a student queries the client application, the data server has to serve up large queries for the client application to manipulate. This is an enormous drain on network resources.

3-Tier client-server architectures have 3 essential components: 1. A Client PC 2. An Application Server 3. A Database Server 3-Tier Architecture Considerations: • Client program contains presentation logic only • Less resources needed for client workstation • No client modification if database location changes • Less code to distribute to client workstations

14. What are n-tier applications? Create a component with one class that returns a disconnected ADO recordset for any SQL statement sent to it. All updates are performed in the ADO recordset, then passed back to the component for batch updating.

Create a component that has many classes based around business processes. All data for the business process is passed to this component. The component will update the appropriate tables from the data supplied. Another component would be used to return views of data needed to support the user interface for a business process.

Create one class per table using ADO embedded into the class. This is a logical n-tier model where both the EXE and the classes (in a DLL) are installed on the client machine.

Create one class per table using ADO on the client side. This client-side class passes SQL through DCOM to a server-side Data Class running under MTS that returns a disconnected ADO recordset to the client side.

15. What are super computers?

A supercomputer is a computer at the frontline of current processing capacity, particularly speed of calculation. Supercomputers were introduced in the 1960s and were designed primarily by Seymour Cray at Control Data Corporation (CDC), and later at Cray Research. While the supercomputers of the 1970s used only a fewprocessors, in the 1990s, machines with thousands of processors began to appear and by the end of the 20th century, massively parallel supercomputers with tens of thousands of "off-the-shelf" processors were the norm.

Web Knowledge bank 16. What is html?

HTML is a language for describing web pages.

• HTML stands for Hyper Text Markup Language • HTML is not a programming language, it is a markup language • A markup language is a set of markup tags • HTML uses markup tags to describe web pages 17. What is difference between html and programming language?

HTML is not a programming language so it is very different to programming languages. HTML is really just for formatting text and laying out pages, what we call marking up a page. So it is a Markup Language. It can't really do anything interactive with you. Web pages that can do things normally have programming code built into them, with languages like JavaScript. HTML can't even do simple things like calculations. Calculations are fundamental to programming languages, as are many other things like: making decisions, repeating instructions, storing data, processing data, and many other things. HTML can't do any of those things. HTML borrows some things from programming, like the facility to use comments, encouraging people to lay out their code properly and the use of simple English-like commands. 18. What is difference between webpage and website?

A website is a group of webpages. Imagine a big business like KMart or General Motors. Their website contains webpages for each department in their organization, for each promotional campaign they create and for every business they are contacted with. Their website consists of 100s of webpages. Most small businesses can get all their company information in as few as 5 pages. I have seen businesses with only a single webpage. Their website consists of 1 page. A website is created the same way a webpage is created. As you create webpages, it is common to add a navigational link to your other pages. This process of binding together the webpages creates what is commonly known as a website.

A website may contain one or more than one (virtually any number) webpages while a webpage is always a single entity.

19. What is domain name? A domain name is an identification string that defines a realm of administrative autonomy, authority, or control in the Internet. Domain names are formed by the rules and procedures of the Domain Name System (DNS). Domain names are used in various networking contexts and application-specific naming and addressing purposes. In general, a domain name represents an Internet Protocol (IP) resource, such as a personal computer used to access the Internet, a server computer hosting a web site, or the web site itself or any other service communicated via the Internet.

20. What is DNS? The Domain Name System (DNS) is a hierarchical distributed naming system for computers, services, or any resource connected to theInternet or a private network. It associates various information with domain names assigned to each of the participating entities. A Domain Name Service translates queries for domain names (which are meaningful to humans) into IP addresses for the purpose of locating computer services and devices worldwide.

21. What are Add on domains? Give example?

An add on domain is a new domain that is added on top of your main domain .It creates a sub directory within your main web hosting directory but can show a different web site. The add-on domain collects information from the sub domain directory using the same space and bandwidth as your main account; however it won’t have its own Cpanel. (Web hosting manager)

Here is an example of how to create an add-on domain:

Let's say you primary domain is http://www.SiteA.com You add an add-on domain named: http://www.SiteB.com through the cpanel.

Now you can access it via:

http://www.SiteB.com or http://www.SiteB.SiteA.com/ or http://www.SiteA.com/SiteB/

You can now set-up email for the add-on domain as if it was a separate site i.e. [email protected] with mail servers as mail.SiteB.com

22. What are sub domains? Give examples?

The Domain Name System (DNS) has a tree structure or hierarchy, with each node on the tree being a domain name. A sub domain is a domain that is part of a larger domain, the only domain that is not also a subdomain is the root domain

Creating Sub domains

To create a subdomain, click on the "Subdomains" icon in the main control panel menu.

In the above example we are creating newsub.sitehelper.com. To create the subdomain, click the "Create" button.

You may also create sub.sub.sub.sub.domain.com. In the above example we have created i.love.site- helper.com.

Note: It may take up to five minutes for a new subdomain to become active.

Uploading to a Subdomain

Each subdomain appears in public_html/subdomain-name. This means that your subdomain can also be accessed at http://www.yoursite.com/subdomain-name. You can upload to a subdomain folder in the same way you upload to any other folder: use FTP, MS FrontPage, File Manager, etc.

Removing Subdomains

To remove a subdomain, place a check next to the subdomain(s) you want deleted, then click the "Delete Selected" button. Next to the "Delete Selected" button is a checkbox called "Remove Directory Contents." Check this box if you want the subdomain directory and its files to be deleted. If you don't check the box, the subdomain will stop working but the files and directory will remain intact.

Subdomain Statistics

Beside each subdomain name is a "Stats" link (see above picture). This link will load Webalizer statistics. Please note that for the link to work (1) your subdomain must have some traffic (at least one hit) and (2) your subdomain must be more than one day old. Until these requirements are met, the "Stats" link will return a file not found error.

Usage Log / Error Log

The "Usage Log" and "Error Log" links (see above picture) will take you to text version of each log file. The usage log provides the IP address of the requester, time and date of the request, and the description of the request. The "Stats" link (see Subdomain Statistics section) is a graphical version of the usage log. The error log provides information about unsuccessful requests and is useful for troubleshooting when the cause of the error is unknown.

The usage and error logs are accessible immediately after subdomain creation. You will see a blank box if there has been no subdomain activity.

Creating FTP Users for Individual Subdomains

To restrict an FTP account to a single subdomain, follow these steps:

1. Create the subdomain if you haven't done so already. 2. From the main control panel menu, click the "FTP Menu" icon and then the "Create FTP account link."

3. In the "FTP Username" field, enter the subdomain name (without .yourdomain.com). 4. Enter a password in the password fields. 5. Select the "User" radio button. 6. Click the "Create" button.

23. What are parked domains?

A Parked Domain is an inactive domain reserved for later use or one that points to another existing domain.

For example, the domain name for your hosting account is "domain.com" and you also have registered "domain.net" through your domain.com Domain Manager. You may point domain.net to the domain.com IP address. Internet users can now access your Web site using either domain name.

Domain parking is the registration of an Internet domain name without using it for services such as e- mail or a website i.e. without placing any content on the domain. This may be done to reserve the domain name for future development, to protect against the possibility of cyber squatting, or to engage in cyber squatting. Since the domain name registrar will have set name servers for the domain, the registrar or reseller potentially has use of the domain rather than the final registrant.

24. Write at least 10 html editors?

Text editors Akelpad Crimson Editor FAR Manager (+colorer plug-in) Gedit JEdit Kate Metapad Nano

Source code editors Coda E Text Editor Edit plus Emacs Geany HTML-Kit Home site

25. What are advantages of dot net programming?

• It is compiled to an intermediate language (CIL) independently of the language it was developed or the target architecture and operating system. • Automatic garbage collection. • Pointers no longer needed(but optional)

Reflection capabilities.

Don’t need worry about header files “h” • definition of classes and functions can be done in any order • declaration of functions and classes are needed • Unexisting circular dependencies. • classes can be defined within classes • There are no global functions or variables, everything belongs to a class

26. Write at least few disadvantages of dot net programming?

27. What is open source community?

Open-source software (OSS) is computer software that is available in source code form: the source code and certain other rights normally reserved for copyright holders are provided under a free software license that permits users to study, change, improve and at times also to distribute the software. 28. Give few popular examples which show a significant contribution of open source community?

29. What is a blog? Give some examples of sites that promote blogging? A blog (a portmanteau of the term web log)[1] is a personal journal published on the World Wide Web consisting of discrete entries ("posts") typically displayed in reverse chronological order so the most recent post appears first. Blogs are usually the work of a single individual, occasionally of a small group, and often are themed on a single subject. Blog can also be used as a verb, meaning to maintain or add content to a blog.

Examples: After a slow start, blogging rapidly gained in popularity. Blog usage spread during 1999 and the years following, being further popularized by the near-simultaneous arrival of the first hosted blog tools:

. Bruce Ableson launched Open Diary in October 1998, which soon grew to thousands of online diaries. Open Diary innovated the reader comment, becoming the first blog community where readers could add comments to other writers' blog entries. . Brad Fitzpatrick started Live Journal in March 1999. . Andrew Smales created Pitas.com in July 1999 as an easier alternative to maintaining a "news page" on a Web site, followed by Diaryland in September 1999, focusing more on a personal diary community.[15]

30. What are social networking websites? Name popular social networking websites?

A social networking service is an online service, platform, or site that focuses on building and reflecting of social networks or social relations among people, who, for example, share interests and/or activities. A social network service consists of a representation of each user (often a profile), his/her social links, and a variety of additional services. Most social network services are web-based and provide means for users to interact over the Internet, such as e-mail and instant messaging. Facebook, twitter, linked in, My space, Google plus, DevianArt, Livejournal, CafeMom, Mylife.

31. Give at least 10 popular social networking websites based on each separate category? Sign up with these online networking communities as a company or as an individual to take advantage of recruiting opportunities, cross-promotional events and more. 1. LinkedIn: LinkedIn is a popular networking site where alumni, business associates, recent graduates and other professionals connect online. 2. Ecademy: Ecademy prides itself on "connecting business people" through its online network, blog and message-board chats, as well as its premier BlackStar membership program, which awards exclusive benefits. 3. Focus : Focus is a business destination where business professionals can help each other with their purchase and other business decisions by accessing research and peer expertise. Most importantly, Focus provides open, quality information for all businesses that is freely available, easily accessible, and community powered. 4. YorZ: This networking site doubles as a job site. Members can post openings for free to attract quality candidates. 5. Xing: An account with networking site Xing can "open doors to thousands of companies." Use the professional contact manager to organize your new friends and colleagues, and take advantage of the Business Accelerator application to "find experts at the click of a button, market you in a professional context [and] open up new sales channels." 6. Facebook: Facebook is no longer just for college kids who want to post their party pics. Businesses vie for advertising opportunities, event promotion and more on this social- networking site. 7. Care2: Care2 isn't just a networking community for professionals: It's touted as "the global network for organizations and people who Care2 make a difference." If your business is making efforts to go green, let others know by becoming a presence on this site. 8. Gather: This networking community is made up of members who think. Browse categories concerning books, health, money, news and more to ignite discussions on politics, business and entertainment. This will help your company tap into its target audience and find out what they want. 9. MEETin.org: Once you've acquired a group of contacts in your city by networking on MEETin.org, organize an event so that you can meet face-to-face. 10. Tribe: Cities like Philadelphia, Boston, San Francisco, New York and Chicago have unique online communities on tribe. Users can search for favorite restaurants, events, clubs and more. 11. Ziggs: Ziggs is "organizing and connecting people in a professional way." Join groups and make contacts through your Ziggs account to increase your company's presence online and further your own personal career. 12. Plaxo: Join Plaxo to organize your contacts and stay updated with feeds from Digg, Amazon.com, del.icio.us and more. 13. NetParty: If you want to attract young professionals in cities like Boston, Dallas, Phoenix, Las Vegas and Orlando Fla., create an account with the networking site NetParty. You'll be able to connect with qualified, up-and-coming professionals online, then meet them at a real- life happy-hour event where you can pass out business cards, pitch new job openings and more. 14. Networking for Professionals: Networking For Professionals is another online community that combines the Internet with special events in the real world. Post photos, videos, résumés and clips on your online profile while you meet new business contacts 32. What are frames in html?

With frames, you can display more than one HTML document in the same browser window. Each HTML document is called a frame, and each frame is independent of the others.

The disadvantages of using frames are:

• Frames are not expected to be supported in future versions of HTML • Frames are difficult to use. (Printing the entire page is difficult). • The web developer must keep track of more HTML documents 33. What is difference between frames and Iframes in html? • Inline frame is just one “box” that is placed anywhere on browser page. In contrast, frame is a bunch of boxes put together to make one site. • The web developer must keep track of more HTML documents while developing frames. • Users cannot specify the size of Iframe. • Another merit of Iframes is its ability of displaying other website contents flawlessly in one user’s window. • Iframe also offer placement flexibility and ease of indexing while targeting with multiple pages.

34. What are web 2.0 tools?

While the Web has always been a tool for collaboration, only in the last few years has software permitted individuals to use it as a platform for true collaborative activities. Web 2.0 is about users and content, instead of just surfing on the Internet. It's about what the Internet can do for an active collaborator, rather than a passive viewer.

Web 2.0 technologies are changing the way messages spread across the Web. A number of online tools and platforms are now defining how people share their perspectives, opinions, thoughts and experiences. Web 2.0 tools such as weblogs, RSS, video casting, social bookmarking, social networking, podcasts and picture sharing sites are becoming more and more popular. One major advantage of Web 2.0 tools is that the majority of them are free.

There is a large number of Web 2.0 tools, some of the more popular ones are:

• Blogger • Wordpress • Myspace • Youtube • Metacafe • Del.icio.us • Digg • Furl • Twitter • Flickr

35. What is SEO?

Search engine optimization (SEO) is the process of improving the visibility of a website or aweb page in search engines via the "natural," or un-paid ("organic" or "algorithmic"), search results. In general, the earlier (or higher ranked on the search results page), and more frequently a site appears in the search results list, the more visitors it will receive from the search engine's users. SEO may target different kinds of search, including image search, local search, video search, academic search,[1] news search and industry-specific vertical search engines.

36. What is SEM? Search engine marketing (SEM) is a form of Internet marketing that involves the promotion of websites by increasing their visibility in search engine results pages (SERPs) through the use of paid placement, contextual advertising, and paid inclusion.[1] Depending on the context, SEM can be an umbrella term for various means of marketing a website including search engine optimization (SEO), which "optimizes" website content to achieve a higher ranking in search engine results pages, or it may contrast with SEO, focusing on only paid components

37. Give 10 popular gaming sites name ?

Allgamesatoz.com Caiman.us Fullgames.sk GameHippo Home of the Underdogs Mega Games Planet Freeplay Reloaded Abandonia

38. Give some websites that are used to check website ranking?

www.mywebraqnking.com www.advancedwebranking.com www.webposition.com www.mywebsiteranking.com

HTML Knowledge Bank 39. Difference between HTML & XML?

HTML is an abbreviation for Hypertext Markup Language while XML stands for extensible Markup Language. The differences are as follows:-

1.HTML was designed to display data with focus on how data looks while XML was designed to be a software and hardware independent tool used to transport and store data, with focus on what data is.

2. HTML is a markup language itself while XML provides a framework for defining markup languages.

3. HTML is a presentation language while XML is neither a programming language nor a presentation language.

4. HTML is case insensitive while XML is case sensitive.

5. HTML is used for designing a web-page to be rendered on the client side while XML is used basically to transport data between the application and the database. 40. Difference between HTML & DHTML?

HTML 1. It is referred as a static HTML and static in nature. 2. A plain page without any styles and Scripts called as HTML. 3. HTML sites will be slow upon client-side technologies.

DHTML 1.It is referred as a dynamic HTML and dynamic in nature. 2. A page with HTML, CSS, DOM and Scripts called as DHTML. 3. DHTML sites will be fast enough upon client-side technologies.

41. List at least 10 browser names used for accessing internet for desktop computing?

Internet explorer Firefox Google chrome Safari Opera Netspace navigator Camino Seamonkey K-meleon Galeon Conqueror Flock

42. List at least 10 browser used in mobiles?

Blazer from Palm, Inc

UC Browser from UCWEB Technology

JOCA from InteracT!V

Opera Mini from Opera Software ASA

Bolt from Bitstream Inc.

Firefox from Mozilla

IbisBrowserDX from ibis inc.

Teashark from Teashark Internet Explorer Mobile from Microsoft

Minimo from Mozilla (Doug Turner)

Skyfire from Skyfire

43. What is Flash animation?

A Flash animation or Flash cartoon is an animated film which is created using Adobe Flash or similar animation software and often distributed in the .swf file format. The term Flash animation not only refers to the file format but to a certain kind of movement and visual style which, in many circles, is seen as simplistic or unpolished. However, with dozens of Flash animated television series, countless more Flash animated television commercials, and award-winning online shorts in circulation, Flash animation is enjoying a renaissance.

44. What is silverlight?

Microsoft Silverlight is an application framework for writing and running rich Internet applications, with features and purposes similar to those of Adobe Flash. The run-time environment for Silverlight is available as a plug-in for web browsers running under Microsoft Windows and Mac OS X. While early versions of Silverlight focused on streaming media, current versions support multimedia, graphics and animation, and give developers support for CLI languages and development tools. Silverlight is also one of the two application development platforms for Windows Phone.

45. Write at least 50 html tags along with their usability?

• ADDRESS - Address information • APPLET - Java applet • AREA - Hotzone in imagemap • A - Anchor • BASE - Document location • BASEFONT - Default font size • BIG - Larger text • BLOCKQUOTE - Large quotation • BODY - Document body • BR - Line break • B - Bold • CAPTION - Table caption • CENTER - Centered division • CITE - Short citation • CODE - Code fragment • DD - Definition • DFN - Definition of a term • DIR - Directory list • DIV - Logical division • DL - Definition list • DT - Definition term • EM - Emphasized text • FONT - Font modification • FORM - Input form • H1 - Level 1 header • H2 - Level 2 header • H3 - Level 3 header • H4 - Level 4 header • H5 - Level 5 header • H6 - Level 6 header • HEAD - Document head • HR - Horizontal rule • HTML - HTML Document • IMG – Images • INPUT - Input field, button, etc. • ISINDEX - Primitive search • I - Italics • KBD - Keyboard input • LINK - Site structure • LI - List item • MAP - Client-side imagemap • MENU - Menu item list • META - Meta-information • OL - Ordered list • OPTION - Selection list option • PARAM - Parameter for Java applet • PRE - Preformatted text • P - Paragraph • SAMP - Sample text • SCRIPT - Inline script • SELECT - Selection list • SMALL - Smaller text • STRIKE - Strikeout • STRONG - Strongly emphasized • STYLE - Style information • SUB - Subscript • SUP - Superscript • TABLE - Tables • TD - Table cell • TEXTAREA - Input area • TH - Header cell • TITLE - Document title • TR - Table row • TT - Teletype • UL - Unordered list • U - Underline • VAR - Variable

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46. What is importance of object tag (