CS101 Solved Short Questions Lectures 1-45 Set 2

CS101 ALL SHORT QUESTIONS SOLVED

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

What is the use of charAt(n) function?

CharAt(n) function returns the character at n+1 location in the string on which this method is applied. For example, Let Name is a string variable that contains value saad,then Name. CharAt(3) will return character d .

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. 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.

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.

What is " Kernel"? Give me some suitable example. The kernel is the essential center of a computer operating system, the core that provides basic services for all other parts of the operating system. A synonym is nucleus. A kernel can be contrasted with a shell, the outermost part of an operating system that interacts with user commands. Kernel and shell are terms used more frequently in Unix operating systems than in IBM mainframe or Microsoft Windows systems. Typically, a kernel (or any comparable center of an operating system) includes an interrupt handler that