Computer set 1 MCQs

Practice interactive objective questions for this topic. Select an option to instantly verify your answer and read detailed explanations.

Showing 603 questions
Q.271 In the context of computer generations, the use of microprocessors is associated with which generation?
A Fourth generation
B Third generation
C Fifth generation
D Second generation
Discuss / Board
Q.272 Which of the following is an example of utility software?
A Disk defragmenter
B Database management system
C Word processor
D Web browser
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Q.273 What is the main difference between a compiler and an interpreter?
A A compiler translates the entire program before execution; an interpreter translates line by line during execution
B A compiler produces faster execution but no object code; an interpreter is slower but creates executables
C A compiler works only with low-level languages; an interpreter only with high-level languages
D There is no difference
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Q.274 Which type of optical disc can be written multiple times?
A DVD-RW
B DVD-ROM
C CD-R
D BD-ROM
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Q.275 In Excel, what does the error #REF! indicate?
A A cell reference is invalid, often due to deleted cells
B A formula attempts to divide by zero
C A value is not available to a function
D The column is too narrow
Discuss / Board
Q.276 Which of the following best describes a 'worm' in computer security?
A A self-replicating malware that spreads across networks without user intervention
B A program that disguises itself as legitimate software
C A malicious script that runs only when an infected file is opened
D A software that monitors user activity secretly
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Q.277 A document in MS Word is protected with a password to open. Which type of security does this implement?
A Encryption-based access control
B Digital signature
C Watermarking
D Macro virus protection
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Q.278 Which type of computer is specifically designed to handle hundreds or thousands of simultaneous user requests, typically in a network environment?
A Mainframe computer
B Supercomputer
C Workstation
D Microcomputer
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Q.279 What does the 'Cc' field in an email header stand for?
A Carbon Copy
B Courtesy Copy
C Confidential Copy
D Combined Copy
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Q.280 Which keyboard shortcut is used to lock a Windows computer quickly?
A Windows key + L
B Ctrl + Alt + Delete
C Alt + F4
D Windows key + D
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Q.281 In Excel, what is the result of the formula =MID("Computer",4,3)?
A put
B omp
C ute
D ter
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Q.282 Which of the following is a correct pairing of input device and its technology?
A OMR – recognizes pencil marks on predefined positions
B MICR – reads barcode patterns using laser
C OCR – captures magnetized characters on cheques
D Barcode Reader – interprets handwritten text
Discuss / Board
Q.283 What is the fundamental purpose of an operating system’s process scheduler?
A To allocate CPU time among multiple processes efficiently
B To manage file storage and directory structures
C To handle input and output operations
D To provide network connectivity
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Q.284 Which Excel feature allows you to apply formatting automatically when cell values meet specific conditions?
A Conditional Formatting
B Data Validation
C Format Painter
D Cell Styles
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Q.285 A user wants to send a confidential email. Which technique ensures that only the intended recipient can read the message content?
A Encryption using the recipient's public key
B Adding a digital signature
C Using Bcc field
D Enabling read receipt
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Q.286 In Windows, which tool provides a hierarchical view of hardware components, drivers, and their statuses?
A Device Manager
B Task Manager
C Event Viewer
D Registry Editor
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Q.287 What is the typical storage capacity of a standard single-layer DVD?
A 4.7 GB
B 700 MB
C 8.5 GB
D 25 GB
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Q.288 Which term describes software whose source code is freely available for modification and redistribution?
A Open Source
B Freeware
C Shareware
D Proprietary
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Q.289 In MS Word, what does the 'Mail Merge' feature combine?
A A main document with a data source to produce multiple personalized copies
B Two different documents into one using track changes
C Email attachments with the document body
D Multiple tables into a single table
Discuss / Board
Q.290 A computer’s RAM is upgraded from 4 GB to 8 GB. Which performance aspect is most directly improved?
A Ability to run more applications simultaneously without slowdown
B Faster hard disk read/write speeds
C Increased CPU clock speed
D Better graphics rendering resolution
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Q.291 Which search engine operator finds pages that contain one term or the other (or both)?
A OR
B AND
C NOT
D EXACT
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Q.292 What is the primary role of a bootloader in the startup process?
A Load the operating system kernel into memory
B Perform hardware diagnostics
C Initialize the BIOS firmware
D Mount file systems
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Q.293 In the context of cybersecurity, what does a VPN primarily provide?
A An encrypted tunnel for secure communication over public networks
B Antivirus protection by scanning downloads
C A firewall to block intruders
D Two-factor authentication for logins
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Q.294 In Excel, what does the formula =INDEX(A1:C10,2,3) return?
A Value at the intersection of the 2nd row and 3rd column within the range
B The entire second row of the range
C The sum of the range
D A reference to cell C2
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Q.295 Which of the following is a valid example of an email address?
A user@domain.com
B user@domain@com
C user.domain.com
D user@domain
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Q.296 A search engine's algorithm ranks pages partly based on the number and quality of links from other sites. What is this factor called?
A PageRank
B SEO score
C Crawling frequency
D Indexing depth
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Q.297 What is the primary function of an assembler?
A Converts assembly language code into machine code
B Translates high-level language into assembly code
C Links multiple object files into an executable
D Interprets scripts line by line
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Q.298 Which type of printer uses toner and heat to fuse text onto paper?
A Laser printer
B Inkjet printer
C Dot matrix printer
D Thermal printer
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Q.299 In Windows, the registry is a database that stores:
A Configuration settings for the OS and applications
B User passwords in plain text
C Temporary internet files
D System boot loader
Discuss / Board
Q.300 Which of the following is not a mobile operating system?
A BSD
B Android
C iOS
D Windows Phone
Discuss / Board

Master Computer set 1 for All Competitive Exams 2026

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