Previous Year SSC Computer Awareness MCQ Set- 17
161. A Firewall is used in a Communication Network/System for protection from [MPPCS (Pre) 2014]
A. Unauthorized attack
B. Data-driven attack
C. Fire attacks
D. Virus attacks
Answer – A. Unauthorized attack
Explanation-A Firewall is a security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It is used to protect a communication network/system from unauthorized access and attacks.
162. The output quality of a printer is measured by which unit?
A. Dot per inch
B. Dot per sq. inch
C. Dots printed per unit of time
D. All of the above
Answer –B. Dot per sq. inch
Explanation-The output quality of a printer is typically measured by the number of dots it can print per square inch (dpi or dot per sq. inch), which determines the sharpness and clarity of the printed text or image.
163. Hackers
A. all have the same motive
B. break into other people’s computers
C. may legally break into computers as long as they do not do any damage
D. are people who are allergic to computers
Answer – B. break into other people’s computers
Explanation-A hacker is someone who breaks into other people’s computer systems without permission, typically to steal sensitive information, corrupt data, or cause damage.
164. What type of computers are client computers (most of the time) in a client-server system?
A. Mainframe
B. Mini-computer
C. Microcomputer
D. PDA
Answer – C. Microcomputer
Explanation-In a client-server system, the client computers are typically microcomputers or personal computers that connect to the server to access resources or services, such as files, applications, or databases.
165. A computer virus is a [Uttarakhand Lower Sub. (Pre) 2010]
A. Destructive program
B. Utility program
C. Firewall
D. None of the above
Answer – A. Destructive program
Explanation-A computer virus is a type of malicious software that infects a computer system without the user’s consent and can cause various types of damage or disruption, including data loss, system crashes, and unauthorized access.
166. A computer cannot ‘boot’ if it does not have the
A. Compiler
B. Loader
C. Operating System
D. Assembler
Answer – C. Operating System
Explanation-The operating system is a software component that manages computer hardware and software resources and provides common services for computer programs. It is responsible for booting the computer and loading other software programs.
167. The amount of vertical space between lines of text in a document is called
A. double-space
B. line spacing
C. single space
D. vertical spacing
Answer – B. line spacing
Explanation-Line spacing is the amount of vertical space between lines of text in a document, typically measured in points or pixels. It can be adjusted to improve readability, or aesthetic appeal.
168. An example of non-numeric data is
A. Employee address
B. Examination scores
C. Bank balance
D. Bookmark
Answer – A. Employee address
Explanation-Non-numeric data refers to information that cannot be expressed as a number, such as text, images, or symbols. Examples include names, addresses, and descriptions, which are typically stored as characters or strings of text.
169. What is an embedded system?
A. The program arrives by being wrapped in a box.
B. The program, which is the permanent part of the computer
C. The computer which is part of a big computer
D. The computer and software system that controls the machine
Answer – D. The computer and software system that controls the machine
Explanation-An embedded system is a computer and software system that is built into a machine or device and is designed to control its functions or operations. Examples include automotive systems, medical equipment, and home appliances.
170. The first page of the Website is termed as
A. Homepage
B. Index
C. JAVA script
D. All of these
Answer – A. Homepage
Explanation-The first page of a website, which serves as the main entry point for visitors, is typically called the homepage. It often includes a summary of the site’s content, navigation links, and other relevant information.
