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.391 What does the CPU's clock speed measure?
A Number of cycles per second (in GHz)
B Data transfer rate in MB/s
C Size of the cache
D Number of cores
Discuss / Board
Q.392 Which component converts AC power from the wall outlet to low-voltage DC power for the computer?
A Power Supply Unit (PSU)
B Motherboard
C CPU
D UPS
Discuss / Board
Q.393 In Linux, which command is used to search for a specific text pattern within files?
A grep
B find
C locate
D sed
Discuss / Board
Q.394 What is the shortcut key to open Task Manager directly in Windows?
A Ctrl + Shift + Esc
B Ctrl + Alt + Delete
C Alt + F4
D Windows + T
Discuss / Board
Q.395 Which of the following is a volatile memory?
A RAM
B ROM
C Flash memory
D EPROM
Discuss / Board
Q.396 In MS Word, what is the maximum zoom percentage?
A 500%
B 200%
C 400%
D 1000%
Discuss / Board
Q.397 Which Excel feature provides visual summaries of data using small charts inside individual cells?
A Sparklines
B PivotCharts
C Conditional Formatting icon sets
D Data bars
Discuss / Board
Q.398 What is the purpose of 'headers and footers' in an MS Excel worksheet?
A To insert repeated information at the top and bottom of printed pages
B To freeze the top and bottom rows on the screen
C To protect the worksheet from editing
D To split the window into multiple panes
Discuss / Board
Q.399 Which network protocol ensures reliable delivery of data by establishing a connection before transmission?
A TCP
B UDP
C IP
D HTTP
Discuss / Board
Q.400 What does the 'https://' part of a URL indicate?
A Secure communication protocol
B File transfer protocol
C Email protocol
D Domain name
Discuss / Board
Q.401 Which of the following is an example of a cloud storage service?
A Google Drive
B Microsoft Word
C Adobe Reader
D VLC Media Player
Discuss / Board
Q.402 In Boolean logic, which operator narrows a search by requiring both terms to be present?
A AND
B OR
C NOT
D XOR
Discuss / Board
Q.403 What is the main advantage of using a Command Line Interface (CLI) over a Graphical User Interface (GUI)?
A Greater control and the ability to script repetitive tasks
B Easier to learn for novice users
C Requires less memory and processing power
D Both A and C
Discuss / Board
Q.404 In Excel, what does the formula =ROUND(123.4567,2) return?
A 123.46
B 123.45
C 123.4
D 123
Discuss / Board
Q.405 Which of the following is NOT a function of an operating system?
A Compiling source code into an executable
B Memory management
C File management
D Process scheduling
Discuss / Board
Q.406 What is the primary purpose of a UPS (Uninterruptible Power Supply)?
A To provide backup power during a mains failure and protect against surges
B To increase the speed of the internet connection
C To cool the CPU
D To expand storage capacity
Discuss / Board
Q.407 In MS Word, what does the 'Widow/Orphan control' setting prevent?
A Single lines of a paragraph appearing alone at the top or bottom of a page
B Unwanted page breaks inside a table
C Spelling errors
D Macro viruses
Discuss / Board
Q.408 Which Excel function counts the number of empty cells in a range?
A COUNTBLANK
B COUNT
C COUNTA
D COUNTIF
Discuss / Board
Q.409 What does 'phishing' typically attempt to steal?
A Login credentials and personal information
B Computer hardware
C Bandwidth
D Operating system files
Discuss / Board
Q.410 Which device is used to connect a computer to a local network via an Ethernet cable?
A Network Interface Card (NIC)
B Modem
C Router
D Switch
Discuss / Board
Q.411 Which of the following is NOT a web browser?
A Microsoft Excel
B Mozilla Firefox
C Google Chrome
D Safari
Discuss / Board
Q.412 What does the 'Ctrl + Z' shortcut do in most applications?
A Undo the last action
B Redo the last action
C Cut the selected item
D Close the window
Discuss / Board
Q.413 In a computer, what does the term 'bottleneck' refer to?
A A component that limits the overall system performance
B A cooling fan malfunction
C A network cable with low bandwidth
D A small software bug
Discuss / Board
Q.414 Which type of software helps convert a scanned document image into editable text?
A OCR software
B Image editor
C PDF reader
D Word processor
Discuss / Board
Q.415 In MS Word, which option allows you to apply the same formatting from one piece of text to many?
A Double-click Format Painter
B Single-click Format Painter
C Use Styles pane
D Copy and Paste Special
Discuss / Board
Q.416 Which Excel function returns the current date and time?
A NOW()
B TODAY()
C DATE()
D TIME()
Discuss / Board
Q.417 What is the purpose of the 'defragmentation' tool?
A To reorganize fragmented data on a hard disk so that files are stored contiguously
B To delete temporary files
C To scan for malware
D To backup system settings
Discuss / Board
Q.418 Which protocol is used to send web pages from a server to a browser?
A HTTP
B FTP
C SMTP
D DNS
Discuss / Board
Q.419 Which of the following is a strong password practice?
A Using a mix of uppercase, lowercase, numbers, and symbols
B Using your birthdate as password
C Reusing passwords across multiple sites
D Writing passwords on a sticky note
Discuss / Board
Q.420 What does the 'Cache' in a web browser store?
A Copies of web pages, images, and other content to speed up loading on repeat visits
B User passwords
C Virus definitions
D Browser extensions
Discuss / Board

Master Computer set 1 for All Competitive Exams 2026

Practicing Computer set 1 MCQs is one of the most effective ways to prepare for competitive examinations in 2026. This topic-wise question bank contains carefully selected multiple-choice questions designed to strengthen conceptual understanding, improve accuracy, and enhance problem-solving speed. Our collection includes beginner, intermediate, and advanced-level questions frequently asked in JKSSB, SSC, Banking, Railway, Police, Defence, State PSC, and various national-level examinations. Every question is structured to reflect real exam patterns and helps candidates become familiar with objective-type assessment formats. Instant answer verification enables students to identify mistakes immediately and learn the correct approach without wasting valuable preparation time. Regular practice of topic-wise MCQs improves retention, reinforces key concepts, and develops confidence required to perform well under exam pressure. Whether you are revising important concepts, preparing for an upcoming recruitment test, or strengthening weak areas, these practice questions provide a reliable platform for continuous improvement. Consistent participation in MCQ-based learning sessions can significantly increase your chances of achieving higher scores and better ranks in competitive examinations.

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