Computer Awareness MCQs | Computer Multiple Choice Questions with Answers

Answer: Hub

Sol. A hub contains several ports for connecting multiple computers to form a small network. A simple hub is also called a concentrator.

Answer: Digital subscriber line

Sol. Digital subscriber line (DSL or digital subscriber loop) is a family of technologies that are used to transmit digital data over telephone lines.

Answer: IP Spoofing

Sol. Spoofing: It is a type of scam where an intruder attempts to gain unauthorized access to a user's system or information by pretending to be the user. The main purpose is to trick the user into releasing sensitive information.

Answer: Page Orientation

Sol. Page orientation is the way in which a rectangular page is oriented for normal viewing.

Answer: Software piracy

Sol. Software piracy is the illegal copying, distribution, or use of software.

Answer: Mesh topology

Sol. In the mesh topology, each computer is connected to the other with a separate physical link in a network. It is most reliable topology as the network does not get down in case one of the nodes is failed.

Answer: Commercial purpose

Sol. COBOL (Common Business Oriented Language) is a programming language that reads like regular English and is often used for business and administrative purposes.

Answer: Operating system software

Sol. An operating system (OS) is a program or software that manages and coordinates the functions of all the components of a computer. It also acts as an interface between the user and the hardware of a computer.

Answer: Adware

Sol. Adware is software that automatically displays or downloads advertising material such as banners or pop-ups when a user is online.

Answer: Presentation

Sol. Presentation layer is responsible for character-code translation, data conversion, data encryption and decryption, and data translation.

Answer: Optical

Sol. A barcode is an optical, machine-readable, representation of data; the data usually describes something about the object that carries the barcode.

Answer: Internet service provider

Sol. An Internet service provider (ISP) is an organization that provides services accessing and using the Internet. Internet service providers may be organized in various forms, such as commercial, community-owned, non-profit, or otherwise privately owned.

Answer: DCL

Sol. DCL (Data Control Language) is used to control the user access to the database, tables, views, procedures, functions and packages. Using DCL command, it allows or restricts the user from accessing data in database schema. DCL use two commands to control access- GRANT and REVOKE.

Answer: Candidate key

Sol. A candidate key is a column, or set of columns, in a table that can uniquely identify any database record without referring to any other data. Each table may have one or more candidate keys, but one candidate key is unique, and it is called the primary key. Candidate key is a minimal super key.

Answer: 802.11

Sol. Wi-Fi is based on the IEEE 802.11 family of standards and is primarily a local area network(LAN) technology designed to provide in-building broadband coverage.

Answer: ARP

Sol. The Address Resolution Protocol (ARP) feature performs a required function in IP routing. ARP finds the hardware address, also known as Media Access Control (MAC) address, of a host from its known IP address. ARP maintains a cache (table) in which MAC addresses are mapped to IP addresses.

Answer: Screen Tip

Sol. ScreenTip is a small window that appears when the pointer is rolled over a command or control. It shows the descriptive text for that command or control.

Answer: PSD

Sol. PSD is an extension for Photoshop files.

Answer: Restore Down button

Sol. The user interface of a Windows-based application contains Window control buttons, namely, Minimize, Maximize and Restore Down, and Close buttons. When the Maximize button is clicked, it is changed to the Restore Down button. Similarly, when the Restore Down button is clicked, the name of the button is changed to the Maximize button.

Answer: Three

Sol. A new workbook contains only three worksheets, namely, Sheet 1, Sheet 2 and Sheet 3, by default. You can rename your worksheets at any point according to your requirements.