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Haryana Police Constable Computer Knowledge — Previous Year Questions

80 Computer Knowledge questions asked in past Haryana Police Constable papers, split into 8 timed practice sets — every question with its answer and explanation.

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About Haryana Police Constable Computer Knowledge previous year questions

This page collects every Computer Knowledge question that has appeared in past Haryana Police Constable papers on AajExam — 80 questions in total, organised into 8 short, timed practice sets. Each question is shown with its four options, the correct answer, and an explanation of the reasoning, so you can use the page either as a self-test or as a revision reference. Why previous year questions are the highest-value Computer Knowledge preparation you can do for Haryana Police Constable: recruitment boards reuse a stable pool of concepts across cycles. The wording changes, the underlying idea rarely does. Working through a few hundred genuine past Computer Knowledge questions teaches you which sub-topics the paper actually rewards, how the examiner likes to frame distractors, and roughly how long each question type should take — none of which a syllabus document can tell you. How to use this page: attempt questions in blocks of ten without looking at the answers, then review every question you got wrong or guessed. Read the explanation for the concept, not just the answer letter. When a concept keeps catching you out, open the related topic page linked below and drill that single area before returning here. Repeat across the full bank, and track how your accuracy on the second pass compares with your first — a 15-20% improvement is normal and is the clearest sign your preparation is working. What is in this bank: the questions are transcribed from actual Haryana Police Constable question papers, kept in the original order and wording, with solutions written by subject specialists. Sets are free to attempt, work on mobile, and need no login to read. If you would rather practise a complete paper end to end under exam conditions, the full Haryana Police Constable previous-year papers are linked below as well.

Computer Knowledge PYQs asked in Haryana Police Constable

A sample of 30 questions from the full bank of 80. Try each one before opening the solution — the remaining questions are in the timed practice sets below.

Q1.Which printer is a type of Impact printer?
- A.Page Printer
- B.Laser Printer
- C.Ink Jet Printer
- D.Dot Matrix Printer
Show answer
Answer: D. Dot Matrix Printer
Q2.Word Processing, Spreadsheet and Photo Editing are examples of .............
- A.Application software
- B.System software
- C.Operating System Software
- D.Platform Software
Show answer
Answer: A. Application software
Q3.Retail workers generally use ............... terminals to process sales transactions.
- A.Sales Processing
- B.Transaction Point
- C.Automatic Teller
- D.Point of Sale
Show answer
Answer: D. Point of Sale
Q4.Inheritance is a property of the object which passes its characteristics to its .................
- A.sub classes
- B.off spring
- C.Super classes
- D.Parents
Show answer
Answer: A. sub classes
Q5.Which of the following is a serial port which provides direct connection to the network?
- A.Firewire
- B.NIC
- C.USB
- D.Internal Modem
Show answer
Answer: B. NIC
Q6.Which one of the following saves non-contiguous clusters on a hard disk?
- A.Clustered file
- B.Defragmented file
- C.Sectored File
- D.Fragmented File
Show answer
Answer: D. Fragmented File
Q7.A program that converts high level language into machine language?
- A.Linker
- B.Assembler
- C.Compiler
- D.All of the above
Show answer
Answer: C. Compiler
Q8.How many operating systems can work on one computer at the same time?
- A.only one
- B.two
- C.three
- D.four
Show answer
Answer: A. only one
Q9.Images can be sent over telephone lines using .................
- A.Big Bandwidth
- B.Fax
- C.Scanner
- D.Cable
Show answer
Answer: B. Fax
Q10.Which of the following is a scientific computer language?
- A.Basic
- B.COBOL
- C.Fortran
- D.Pascal
Show answer
Answer: C. Fortran
Q11.A _______ is a record of information that most servers collect by default and is often accessible from the hosting company or Internet Service Provider (ISP) for the site.
- A.Cascaded Style Sheet
- B.Server Log
- C.Boot Record
- D.Root File System
Show answer
Answer: B. Server Log
Q12.Web page files use the _______ file name extension.
- A..HTM or .HTML
- B..jpeg
- C..doc
- D..js
Show answer
Answer: A. .HTM or .HTML
Q13.________ is restricted to a small geographical area, usually to a relatively small number of stations.
- A.Metropolitan Area Network (MAN)
- B.Internet
- C.Local Area Network (LAN)
- D.Wide Area Network (WAN)
Show answer
Answer: C. Local Area Network (LAN)
Q14.Current microprocessor speed is measured in
- A.Megahertz
- B.Gigahertz
- C.Nanohertz
- D.Kilohertz
Show answer
Answer: B. Gigahertz
Q15.__________ is a set of rules that governs the communication between computers on a network.
- A.A protocol
- B.A port
- C.A handshake
- D.A synchronization
Show answer
Answer: A. A protocol
Q16.______ is defined as the structure of a website and its pages : how the site and the site navigations are organized.
- A.Wireframes
- B.Mock-up
- C.Information architecture
- D.User experience
Show answer
Answer: C. Information architecture
Q17.In a spreadsheet, everything is stored in little boxes called
- A.Cells
- B.Banner
- C.Rows
- D.Columns
Show answer
Answer: A. Cells
Q18.Memory used by your PC's video system is known as
- A.Cache Memory
- B.Video Memory
- C.Virtual Memory
- D.Flash Memory
Show answer
Answer: B. Video Memory
Q19.__________ is any kind of unwanted software that is installed without your adequate consent.
- A.Utility software
- B.Spam
- C.Firmware
- D.Malware
Show answer
Answer: D. Malware
Q20._______ is a process of retrieving, deleted, corrupted and lost data from secondary storage devices.
- A.Data recovery
- B.Data mining
- C.Data discovery
- D.Data decryption
Show answer
Answer: A. Data recovery
Q21._________ is the number of times per second the pixels are recharged so that their glow remains bright.
- A.Refresh rate
- B.Resolution
- C.Pixel rate
- D.Bit depth
Show answer
Answer: A. Refresh rate
Q22._________ is an extremely high-speed, low-cost process, which records computer generated information directly from the computer tape or cartridge to a miniaturized microfilm media.
- A.Character Output Microfilm
- B.Computer Output Microfilm
- C.Character Oriented Microfilm
- D.Computer Oriented Microfilm
Show answer
Answer: B. Computer Output Microfilm
Q23.___________ provides a path to transfer data between CPU and memory.
- A.Control bus
- B.Address bus
- C.Data bus
- D.None of the above
Show answer
Answer: C. Data bus
Q24.___________ must be refreshed continually to store information, otherwise it will lose what it is holding.
- A.Double Data Rate Synchronous Dynamic Random Access Memory (DDR-SDRAM)
- B.Dynamic Random Access Memory (DRAM)
- C.Synchronous Dynamic Random Access Memory (SDRAM)
- D.Static Random Access Memory (SRAM)
Show answer
Answer: B. Dynamic Random Access Memory (DRAM)
Q25.Digital signature are based on ___________ cryptography.
- A.Shared-key
- B.Private-key
- C.Internal-key
- D.Public-key
Show answer
Answer: D. Public-key
Q26.The word Internet is derived from two words
- A.Interface and networks
- B.Inter communication and networks
- C.Internal and networks
- D.Inter connection and networks
Show answer
Answer: D. Inter connection and networks
Q27.The _______ is the portion of window that holds the web page present in the current tab.
- A.Status Bar
- B.Command Bar
- C.Favorites Bar
- D.Content Area
Show answer
Answer: D. Content Area
Q28.CPU stands for
- A.Central Processing Unit
- B.Computer Preprocessing Unit
- C.Central Preprocessing Unit
- D.Computer Processing Unit
Show answer
Answer: A. Central Processing Unit
Q29.__________ comprises a set of several routines and start-up instructions inside the ROM.
- A.Basic Input Output System (BIOS)
- B.Universal Serial Bus (USB)
- C.Expansion port
- D.Port
Show answer
Answer: A. Basic Input Output System (BIOS)
Q30.The __________ is a system that provides a simple and consistent way to organize large data available on the Internet.
- A.Web site
- B.Web browser
- C.Hypertext
- D.Web server
Show answer
Answer: C. Hypertext

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Frequently Asked Questions

How many Haryana Police Constable Computer Knowledge previous year questions are available?

80 Computer Knowledge questions from past Haryana Police Constable papers are available on AajExam, split into 8 practice sets. New questions are added as fresh papers are released.

Are the answers and explanations free?

Yes. Every question on this page shows its correct answer and explanation free of charge, and you do not need an account to read them. A free account only adds attempt tracking and performance analytics.

Do Haryana Police Constable repeat questions from previous years?

Exact repeats do occur, but the more reliable pattern is conceptual: the same Computer Knowledge sub-topics reappear cycle after cycle with reworded questions. That is why working through past questions raises your score more reliably than reading theory alone.

How should I use these questions in my Haryana Police Constable preparation?

Attempt a set of ten cold, review every wrong and guessed question with its explanation, then drill the weak sub-topic on its topic page before moving on. Revisit the same set after a few days — your second-attempt accuracy is the honest measure of whether the concept stuck.

Haryana Police Constable Computer Knowledge practice sets

Each set is a timed 10-question drill drawn from the same question bank.

About Haryana Police Constable Computer Knowledge previous year questions

Computer Knowledge PYQs asked in Haryana Police Constable

Q1.Which printer is a type of Impact printer?

Q2.Word Processing, Spreadsheet and Photo Editing are examples of .............

Q3.Retail workers generally use ............... terminals to process sales transactions.

Q4.Inheritance is a property of the object which passes its characteristics to its .................

Q5.Which of the following is a serial port which provides direct connection to the network?

Q6.Which one of the following saves non-contiguous clusters on a hard disk?

Q7.A program that converts high level language into machine language?

Q8.How many operating systems can work on one computer at the same time?

Q9.Images can be sent over telephone lines using .................

Q10.Which of the following is a scientific computer language?

Q11.A _______ is a record of information that most servers collect by default and is often accessible from the hosting company or Internet Service Provider (ISP) for the site.

Q12.Web page files use the _______ file name extension.

Q13.________ is restricted to a small geographical area, usually to a relatively small number of stations.

Q14.Current microprocessor speed is measured in

Q15.__________ is a set of rules that governs the communication between computers on a network.

Q16.______ is defined as the structure of a website and its pages : how the site and the site navigations are organized.

Q17.In a spreadsheet, everything is stored in little boxes called

Q18.Memory used by your PC's video system is known as

Q19.__________ is any kind of unwanted software that is installed without your adequate consent.

Q20._______ is a process of retrieving, deleted, corrupted and lost data from secondary storage devices.

Q21._________ is the number of times per second the pixels are recharged so that their glow remains bright.

Q22._________ is an extremely high-speed, low-cost process, which records computer generated information directly from the computer tape or cartridge to a miniaturized microfilm media.

Q23.___________ provides a path to transfer data between CPU and memory.

Q24.___________ must be refreshed continually to store information, otherwise it will lose what it is holding.

Q25.Digital signature are based on ___________ cryptography.

Q26.The word Internet is derived from two words

Q27.The _______ is the portion of window that holds the web page present in the current tab.

Q28.CPU stands for

Q29.__________ comprises a set of several routines and start-up instructions inside the ROM.

Q30.The __________ is a system that provides a simple and consistent way to organize large data available on the Internet.

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