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Computer Awareness MCQs | Computer Multiple Choice Questions with Answers

Questions
1 What is the function of an operating system?
A Manages computer’s resources very efficiently
B Takes care of scheduling jobs for execution
C Manages the flow of data and instructions
D All of the above

Answer: All of the above
2 The DBMS acts as an interface between what two components of an enterprise-class database system?
A Database application and the database
B Data and the database
C The user and the database application
D Database application and SQL

Answer: Database application and the database
3 Which programming languages are classified as low level languages?
A Basic, COBOL, FORTRAN
B Prolog 2, Expert Systems
C Knowledge based Systems
D Assembly Languages

Answer: Assembly Languages
4 Which of the following option depicts the type of result whose value is either TRUE or FALSE?
A Logical
B Arithmetic
C Algorithm
D Logarithm

Answer: Logical
5 What is a simulated experience generated by a computer called; like visiting the outer space or stepping on Moon?
A Extended Reality
B Virtual Reality
C Augmented Reality
D Snooping

Answer: Virtual Reality

Sol. Virtual reality basically means 'near-reality’; it usually refers to a specific type of reality emulation which is simulated experience generated by a computer.

6 Which of the following is an expansion card which generates a feed of output images to a display?
A Bus
B Motherboard
C Play Station
D Video Card

Answer: Video Card

Sol. Video Card is an expansion card which generates a feed of output images to a display

7 Using output devices one can ____.
A View or Print Data
B Modify Data
C Store Data
D Replicate Data

Answer: View or Print Data

Sol. Output Devices lets users view or print data, for example Monitor (screen display), Printer.

8 Which among the following does not fall under the category of latest operating systems?
A Windows 10
B iOS 10
C Tizen OS
D Sintran III

Answer: Sintran III

Sol. Sintran III was a real-time, multitasking, multi-user operating system used with Norsk Data computers. It is a discontinued OS.

9 Select the odd one out
A TFT
B LCD
C OLED
D XML

Answer: XML

Sol. Except for XML all others are types of screen display.

10 Which of the following forms a part of a search engine?
A Spiders or Web crawlers
B Indexing software
C Search algorithm
D All of these

Answer: All of these

Sol. The three important elements of a search engine are spiders or Web crawlers, indexing software and search algorithm.

11 Which of the following stores the calculation value of CRC?
A LLC
B MAC
C FCS
D EDI

Answer: FCS

Sol. CRC stands for Cyclic Redundancy Check. Frame Check Sequence (FCS) stores the calculation value of CRC that is used for error detection.

12 A crossover cable is used to
A Connect two computers directly
B Connect DTE-DTE or DCE-DCE devices
C Connect a router’s LAN port to a switch/hub’s normal port to expand a network
D All of these

Answer: All of these

Sol. Crossover cables are used to connect two computers by reversing (crossing over) their respective pin contacts. A crossover cable can be created by reversing the order of the wires inside a cable so that it can connect two computers directly.

13 To allow someone else to schedule your meetings and appointments, ______ feature of Outlook is used.
A Monthly calendar
B Event manager
C Messenger
D Delegate Access

Answer: Delegate Access

Sol. Delegate Access is a more advanced feature than just sharing your Outlook folders. If you want to grant additional permissions, such as allowing a delegate the ability to create e-mail messages or respond to meeting requests on your behalf, you must use Delegate Access.

14 A vacuum tube (also called a VT, electron tube, a valve ) is a device sometimes used to amplify electronic signals. Vacuum Tubes were used in which generation of Computers?
A 1st Generation
B 2nd Generation
C 3rd Generation
D 4th Generation

Answer: 1st Generation

Sol. First Generation computers are characterised by the use of vacuum tubes. These vacuum tubes were used for calculation as well as storage and control. Later, magnetic tapes and magnetic drums were implemented as storage media. The first vacuum tube computer, ENIAC, was developed by US army ordinance to calculate ballistic firing tables in WWII. It had about 17 000 vacuum tubes.

15 In Computer programming API is set of subroutine definitions, protocols, and tools for building software and applications. Which among the following is an application programming interface for the programming language Java, which defines how a client may access a database?
A J2EE
B JDK
C JAVA SE
D JDBC

Answer: JDBC

Sol. Java Database Connectivity (JDBC) is an application programming interface (API) for the programming language Java, which defines how a client may access a database. It is part of the Java Standard Edition platform, from Oracle Corporation.

16 A/(n) ___________ is an object embedded in a web page or email, which unobtrusively (usually invisibly) allows checking that a user has accessed the content
A Email
B Virus
C Web beacon
D Spam

Answer: Web beacon

Sol. Common uses of web beacon are email tracking and page tagging for web analytics. Its alternative names are web bug, tracking bug, tag, or page tag.

17 Non-physical components of the computer are referred to as _______.
A CPU
B Software
C Hardware
D Motherboard

Answer: Software

Sol. Software components are not physical or tangible components.

18 Which among the following term is used for those hardware devices that are not part of the main computer system and are often added later to the system?
A Clip art
B Highlight
C Execute
D Peripheral

Answer: Peripheral

Sol. A peripheral device is generally defined as any auxiliary device such as a computer mouse or keyboard that connects to and works with the computer in some way.

19 Which of the following menu types is also called a drop-down menu?
A Fly-list
B Cascading
C Pop-down
D Pull-down

Answer: Pull-down

Sol. Drop Down menu is also called drop down list or pull down list.

20 Which of the following error occurs when software tries to access protected memory?
A Segmentation Fault
B Displaytime Error
C IO Error
D Runtime Error

Answer: Segmentation Fault

Sol. A segmentation fault is a common condition that causes programs to crash; they are often associated with a file named core. They are caused by a program trying to read or write an illegal memory location. In other words, this is a memory access violation error.

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