CS101 Short Questions by Ghazal Aziz

CS101 SHORT QUESTIONS FULL BOOK · Jhanzaib Pervaiz · Ghazal Aziz

What is Cyber Crime?

Crimes committed with the use of computers or relating to computers, especially through the Internet. Universally, Cyber Crime is understood as "an unlawful act where in the computer is either a tool or a target or both". Cyber Crimes are different from conventional crimes as in cyber crimes; the crime is committed in an electronic medium and here mens rea is not a requirement but is rather a general rule under the penal provisions of the Information Technology Act. The element of mens rea in Internet crimes is that the offender must have been aware at the time of causing the computer to perform the function that the access thus intended to be secured was unauthorized. What are the classification of Cyber Crime? Tampering with computer source documents: Hacking: Publishing of information, which is obscene in electronic form Accessing protected system Breach of confidentiality and privacy Tell me about Split ( delimiter ) string's property? Splint function returns an array of strings, created by splitting string into substrings, at delimiter boundaries. What is the word " Plug-in" means? In the early '90s, the Internet really started to take off in popularity, and the number of Web sites skyrocketed. There was suddenly a wide variety of people producing Web pages, and they had all sorts of multimedia content they wanted to be able to include. Rather than trying to change browsers to recognize and display these many different forms of content, Web innovators launched the idea of browser plug-ins. Plug-ins are programs that work with your browser to read and play a certain type of file. They are relatively small pieces of software, so it doesn't take users forever to download them off the Internet. They are specifically designed to work with a particular type of file, so they can accomplish a lot of things that a basic browser can't. Can you tell me when a function calls itself what is this called? It is called "recursive call of a function".When function is called within itself, it is called recursion or recursive call. The ability of a routine to call itself is called recursion. Recursion enables certain algorithms to be implemented with small, simple routines, but it does not guarantee speed or efficiency. Erroneous use of recursion can cause a program to run out of stack space during execution, causing the program, and sometimes the entire system, to crash. Decribe the ways of calling function? There are two ways to call a function. 1) A function call appearing as a complete statement. It happens where function doesn't return a value. 2) A function call appearing as part of a statement. Definitions of such functions include a ‘return’ statement. It happens where function returns a value. Tell me about OnFocus and OnBlur.

1. on Blur - form element loses focus or when a window or frame loses focus. 2) on Focus - window, frame, frameset or form element receives focus. In first case, event will occur when element will loose the focus. In second case, event will occur when element will receive focus.

What is the use of MsAcess? MS Access is a Data Base Management System(DBMS) by Microsoft.A DBMS is a software package by which you can develop a database. You can insert,delete and update data into that database. You can develop reports and forms too. I have confusion in concepts of 3-D and 2-D. 2D Graphics means showing graphics in two axis. Most of the graphics you see are 2D Graphics. 3D Graphics means showing Graphics in 3 axis How does RuleBased system work ? Rule based Systems are based on the principles of the logical reasoning and ability of human. Components of an RBS: –Rulebase –Working memory –Rule interpreter Robotics What are Robotics? Automatic machines that perform various tasks that were previously done by humans. Example: –Pilot-less combat airplanes –Land-mine hunters –Autonomous vacuum-cleaners How can I add sound effects in my presentation? You select the object on which you want to have a sound effect and then right click and you will see an option " Action Settings" ,click on it and then select a sound from list given. Tell me about PowerPoint(PP),which is the part of Multimedia. Would you compare it with other Multimedia like flash? PowerPoint (PP) is intended to produce desktop presentations (e.g., driving a slide Projector) or to produce actual film slides (using a film recorder); it is Not a tool for Web presentations. If you have a lot of presentations already In PP, you may be forced to try its HTML export features, may have problems with the resulting HTML (large file sizes, lots of garbage tags, poor image quality). If you're fortunate enough to be starting from scratch, you're better to stick with a tool designed and optimized specifically for the Web. Flash is used to prepare presentations, games, animations so it is much powerful tool than Microsoft PowerPoint. I have confusion about open source and firmware. Open Source Software’s are available with their source code. Many are available on internet, for example, very famous Operating System LINUX is open source i.e. its source is available. Firmware is software embedded in the chips, for example, Programs in BIOS etc. Tell me about interface? Interface is the point of interaction or communication between a computer and any other entity, such as a printer or human operator. Tell me about Processor Management and some simple example. The heart of managing the processor comes down to two related issues: 1) Ensuring that each process and application receives enough of the processor's time to function properly. 2) Using as many processor cycles for real work as is possible What are MVS & VMS? MVS is an operating system for mainframe computers. Both VMS and MVS are multi-user operating systems. What is the meaning of GUI-based? GUI (Graphical User Interface) based system facilitates the user to interact with computer graphically like use of windows. What is word processing and desktop top publishing? The art and science of converting written information into a form that looks pleasing when printed is called Word Processing. A combination of word processing and graphic design is called Desktop Publishing. Used to develop elegant documents –Examples: •Adobe PageMaker •Quark Press •Corel Ventura •MS Publisher What is the difference between " Object based Language" and " Object Oriented Language"? Object oriented language supports inheritance, polymorphism etc, while object based don't. Object based languages use objects having their attributes / properties which can be modified according to our requirements. What is the difference b/w " Programming" & " Scripting"? Computer programming is a term to develop programs using some programming language. Computer Programming which makes the site work called script/programs which for example: call data from databases; make mailing systems work and control the content of the site. I could not understand the execution of code in languages. A program or software is developed by writing the code using some programming language, when completed then executed (to perform what is required) to test / implement that program or software. What is the meaning of integration testing? Integration testing is a logical extension of unit testing. In its simplest form, two units that have already been tested are combined into a component and the interface between them is tested. A component, in this sense, refers to an integrated aggregate of more than one unit. In a realistic scenario, many units are combined into components, which are in turn aggregated into even larger parts of the program. The idea is to test combinations of pieces and eventually expand the process to test your modules with those of other groups. Why JavaScript variables are dynamically typed? Dynamically typed variables can hold any type of data and it could contain data of different type midway of program. It is simple to develop for short programs. As your question is concerned, I would like to say that each programming language has its own features depending on the requirements of the tasks for which that particular language is developed. Explain Band Width. Bandwidth has a general meaning of how much information can be carried in a given tim period (usually a second) over a wired or wireless communications link. In digital systems, bandwidth is expressed as bits (of data) per second (bps). What are protocols? Define these with some examples. A set of rules or standards designed to enable computers to connect with one another and to exchange information with as little error as possible.