Computer set 3 MCQs

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

Showing 470 questions
Q.421 Which of the following is a private IP address range?
A 172.16.0.0 – 172.31.255.255
B 172.32.0.0 – 172.63.255.255
C 192.169.0.0 – 192.169.255.255
D 10.0.0.0 – 10.255.255.255 (option A also correct, but the question asks 'which of the following' including that range; need to pick one that is listed as valid private range).
Discuss / Board
Q.422 What is the function of the Windows ‘PowerShell’?
A A command-line shell and scripting language for task automation and configuration management
B A text editor
C A web browser
D An email client
Discuss / Board
Q.423 In MS Word, which view should you use to add or edit headers and footers?
A Print Layout view
B Draft view
C Web Layout view
D Outline view
Discuss / Board
Q.424 In Excel, what does the function =CEILING(4.3, 1) return?
A 5
B 4
C 4.3
D 4.5
Discuss / Board
Q.425 Which wireless communication technology is used for short-range device pairing, such as connecting a mouse?
A Bluetooth
B NFC
C Wi-Fi Direct
D Zigbee
Discuss / Board
Q.426 In cybersecurity, what is ‘social engineering’?
A Manipulating people into performing actions or divulging confidential information
B Exploiting software bugs
C Hacking into social media accounts
D Encrypting data for ransom
Discuss / Board
Q.427 Which MS Word feature helps you find and replace text with specific formatting?
A Find and Replace with ‘More’ options, use Format button
B Navigation pane search
C Spelling & Grammar
D Thesaurus
Discuss / Board
Q.428 In Excel, what is the keyboard shortcut to display the ‘Go To Special’ dialog?
A Ctrl + G, then Alt + S
B F5, then Alt + S
C Ctrl + Shift + G
D Both A and B
Discuss / Board
Q.429 What is the function of the ‘netstat -an’ command?
A Show all active connections and listening ports in numerical form
B Display routing table
C Trace network route
D Ping remote host
Discuss / Board
Q.430 In the context of databases, what does ‘ACID’ stand for?
A Atomicity, Consistency, Isolation, Durability
B Access, Control, Integrity, Data
C Atomic, Concurrent, Isolated, Durable
D Accessible, Consistent, Independent, Distributed
Discuss / Board
Q.431 In MS Word, how can you insert a horizontal line that spans the width of the page?
A Type three hyphens ‘---’ and press Enter
B Insert > Shapes > Line
C Borders > Horizontal Line
D All of the above
Discuss / Board
Q.432 In Excel, what does the function =NUMBERVALUE("1,200.50", ".", ",") return?
A 1200.5
B 1.2005
C 1200.50
D Error
Discuss / Board
Q.433 Which of the following is an example of a ‘phishing’ attack?
A Receiving an email that appears to be from your bank asking you to verify your password
B A virus that encrypts your files
C An attacker intercepting Wi-Fi traffic
D A DoS attack
Discuss / Board
Q.434 What is the purpose of the ‘Win + E’ shortcut?
A Open File Explorer
B Open Settings
C Lock the PC
D Show desktop
Discuss / Board
Q.435 In Linux, which command is used to create a new empty file?
A touch
B mkdir
C cat > file
D Both A and C
Discuss / Board
Q.436 In MS Word, which shortcut is used to remove paragraph formatting?
A Ctrl + Q
B Ctrl + Shift + N
C Ctrl + Spacebar
D Ctrl + 0
Discuss / Board
Q.437 In Excel, what does the ‘Ctrl + T’ shortcut do?
A Creates a table from the selected data
B Inserts a pivot table
C Applies a theme
D Opens the Trust Center
Discuss / Board
Q.438 What is the function of a ‘load balancer’ in networking?
A Distribute incoming network traffic across multiple servers to ensure reliability and performance
B Encrypt all traffic
C Assign IP addresses
D Monitor network intrusions
Discuss / Board
Q.439 In Excel, what does the function =WORKDAY.INTL(start_date, days, weekend, holidays) offer that WORKDAY does not?
A Custom weekend parameters (e.g., Fri-Sat weekend)
B Exclude public holidays
C Calculate workdays backwards
D Include non-working days
Discuss / Board
Q.440 What is the purpose of the ‘hosts’ file in an operating system?
A Map hostnames to IP addresses locally, overriding DNS
B List installed hosts
C Store user passwords
D Configure the firewall
Discuss / Board
Q.441 In MS Word, which tab contains the ‘Dictate’ (speech-to-text) button?
A Home
B Insert
C Review
D View
Discuss / Board
Q.442 In Excel, which function returns the remainder of a division?
A MOD
B QUOTIENT
C INT
D DIV
Discuss / Board
Q.443 What is the standard port for SMTP with SSL/TLS?
A 465
B 25
C 587
D Both A and C are used (587 for STARTTLS, 465 for implicit SSL)
Discuss / Board
Q.444 In MS Word, what is the maximum number of columns you can set in a table?
A 63
B 10
C 32767
D Unlimited
Discuss / Board
Q.445 In Excel, which function returns the number of the week of the year for a given date?
A WEEKNUM
B ISOWEEKNUM
C WEEKDAY
D Both A and B
Discuss / Board
Q.446 Which of the following is a valid Linux command to find files?
A find
B locate
C whereis
D All of the above
Discuss / Board
Q.447 In MS Word, what does ‘Ctrl + Alt + V’ do?
A Opens Paste Special dialog
B Pastes plain text
C Opens the View tab
D Inserts a text box
Discuss / Board
Q.448 In Excel, what is the function of the ‘Text to Columns’ wizard?
A Split a single column into multiple columns based on a delimiter or fixed width
B Merge multiple columns into one
C Convert text to uppercase
D Align text in columns
Discuss / Board
Q.449 What does the ‘ping 8.8.8.8 -t’ command do?
A Continuously ping the Google DNS server until stopped
B Ping once
C Ping with timestamp
D Trace the route
Discuss / Board
Q.450 In the OSI model, which layer defines electrical and physical specifications for devices?
A Physical layer
B Data link layer
C Network layer
D Transport layer
Discuss / Board

Master Computer set 3 for All Competitive Exams 2026

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