1. The portion of the CPU that coordinates the activities of all the other computer components is the ______.

A. motherboard B. coordination board C. control unit D. arithmetic logic unit E. None of these

2. _________ kb is approximately equal to Megabyte.

A. 10,000 B. 1532 C. 1000 D. 100 E. 10

3. What is backup?

A. Adding more components to your network B. Protecting data by copying it from the original source to a different destination C. Filtering old data from the new data D. Accessing data on tape E. None of these

4. What is a person called who uses a computer to cause harm to people or destroy critical systems?

A. Cyberterrorist B. Black-hat hacker C. Cyber Cracker D. Hacktivist E. None of these

5. Personal computers use a number of chips mounted on a main circuit board. What is the common name for such boards?

A. Daughterboard B. Motherboard C. Fatherboard D. Breadboard E. None of these

Answers and Explanations
1. Answer - Option C
Explanation -
The Control Unit (CU) is a component of a computer's Central Processing Unit (CPU) that directs operation of the processor. It tells the computer's memory, arithmetic/logic unit and input and output devices how to respond to a program's instructions.
2. Answer - Option C
Explanation -
1 MB = 1000 KB (in decimal) 1 MB = 1024 KB (in binary)
3. Answer - Option B
Explanation -
A backup, or the process of backing up, refers to the copying and archiving of computer data so it may be used to restore the original after a data loss event.
4. Answer - Option A
Explanation -
Cyberterrorism is the act of Internet terrorism in terrorist activities, including acts of deliberate, large-scale disruption of computer networks, especially of personal computers attached to the Internet, by the means of tools such as computer viruses.
5. Answer - Option B
Explanation -
A Motherboard is also known as the Mainboard. It is the main Printed Circuit Board (PCB) found in computers and other expandable systems.

1. In the binary language each letter of the alphabet, each number and each special character is made up of a unique combination of ______.

A. eight bytes B. eight kilobytes C. eight characters D. eight bits E. None of these

2. What is the permanent memory built into your computer called?

A. RAM B. ROM C. CPU D. CD-ROM E. None of these

3. What are the two essential parts of the computer?

A. Keyboard & Mouse B. Hardware & Software C. Printer & Screen D. Monitor & Keyboard E. None of these

4. What does HTML stand for?

A. Hyper Text Making Links B. Hyper Text Markup Language C. Higher Textual Marking of Links D. Hyper Text Mixer of Links E. None of these

5. ________is the science and art of transforming messages to make them secure and immune to attacks.

A. Cryptography B. Cryptoanalysis C. Cryptology D. cryptoanarchy E. Cryptoanalytics

Answers and Explanations
1. Answer - Option D
Explanation -
In the binary language each letter of the alphabet, each number and each special character is made up of a unique combination of eight bits.
Note:- In computer architecture, 8-bit integers, memory addresses, or other data units are those that are at most 8 bits (1 octet) wide.
2. Answer - Option B
Explanation -
Read-only memory (ROM) is a type of storage moderate that permanently stores data on Personal Computers (PCs) and other electronic devices. It contains the programming needed to start a PC, which is essential for boot-up; it performs major input/output tasks and holds programs or software instructions.
3. Answer - Option B
Explanation -
A computer system consists of two major elements, hardware and software. Computer hardware is the collection of all the parts you can physically touch. Software is a set of instructions for a computer to perform specific operations.
4. Answer - Option B
Explanation -
"HTML" stands for "Hypertext Markup Language". Basically, it's just a means for formatting your document.
5. Answer - Option A
Explanation -
Cryptographyis the science of providing security for information. It has been used historically as a means of providing secure communication between individuals, government agencies and military forces. Today, cryptography is a cornerstone of the modern security technologies used to protect information and resources on both open and closed networks.

1. Which of the following is a browser to view a web page?

A. Chrome B. Opera C. Internet Explorer D. All of the above E. None of these

2. A scripting language similar to HTML and which runs only on a browser is _____.

A. FORTRAN B. BASIC C. FOXPRO D. JavaScript E. None of these

3. Who is the creator of the PHP language?

A. Niklaus Wirth B. Dijkstra C. Rasmus Lerdorf D. Basic Pascal E. None of these

4. A light sensitive device that converts drawing, printed text or other images into digital form is ______.

A. Keyboard B. Plotter C. Scanner D. OMR E. None of these

5. Which of the following is different from the group?

A. Private B. Protected C. Public D. Friend E. None of these

Answers and Explanations
1. Answer - Option D
Explanation -
A web browser is a software application for retrieving, presenting and traversing information resources on the World Wide Web. The major web browsers are Firefox, Internet Explorer, Google Chrome, Opera and Safari.
2. Answer - Option D
Explanation -
JavaScript is a high level dynamic, untyped and interpreted programming language. It has been standardized in the ECMA Script language specification.
3. Answer - Option C
Explanation -
PHP Originally created by Rasmus Lerdorf in 1994, the PHP reference implementation is now produced by The PHP Development Team.
Note:- PHP is a server-side scripting language designed primarily for web development but is also used as a general-purpose programming language.
4. Answer - Option C
Explanation -
A scanner is a device that captures images from photographic prints, posters, magazine pages, and similar sources for computer editing and display.
5. Answer - Option D
Explanation -
In an object oriented programming, a friend function that is a “friend” of a given class is allowed access to public, private or protected data in that class.