Computer set 2 MCQs

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

Showing 525 questions
Q.331 In Excel, what is the keyboard shortcut to select the entire column of the active cell?
A Ctrl + Spacebar
B Shift + Spacebar
C Ctrl + Shift + +
D Ctrl + A
Discuss / Board
Q.332 What does the Excel error #REF! indicate?
A A formula refers to a cell that is not valid (deleted or moved)
B The column is too narrow
C The formula contains unrecognized text
D Division by zero occurred
Discuss / Board
Q.333 Which Excel chart type is best for displaying the relationship between two numeric variables?
A Scatter chart
B Line chart
C Bar chart
D Pie chart
Discuss / Board
Q.334 In Excel, how can you quickly remove duplicate records from a data set?
A Data tab > Remove Duplicates
B Conditional Formatting > Highlight Duplicates
C Filter > Unique Records Only
D Home > Clear > Clear Formats
Discuss / Board
Q.335 Which type of RAM is used in graphics cards for high-speed rendering?
A GDDR SDRAM
B DDR SDRAM
C LPDDR SDRAM
D RDRAM
Discuss / Board
Q.336 What is the primary function of the TLB (Translation Lookaside Buffer)?
A Cache recent virtual-to-physical address translations
B Store the page table in RAM
C Buffer data between CPU and disk
D Hold instruction operands
Discuss / Board
Q.337 Which file system is commonly used for USB flash drives larger than 32 GB for cross-platform compatibility?
A exFAT
B FAT32
C NTFS
D ext4
Discuss / Board
Q.338 In an operating system, what is a 'context switch'?
A The process of storing and restoring the state of a CPU so that execution can be resumed later
B Swapping the entire RAM to disk
C Changing the monitor resolution
D Switching between network protocols
Discuss / Board
Q.339 Which type of multitasking relies on processes voluntarily yielding control of the CPU?
A Cooperative multitasking
B Preemptive multitasking
C Time-sharing
D Real-time multitasking
Discuss / Board
Q.340 In Linux, which command displays the first 10 lines of a file?
A head
B tail
C cat
D more
Discuss / Board
Q.341 What is the purpose of the 'tar' command in Linux?
A Archive multiple files into a single file without compression
B Compress files using gzip
C Transfer files over network
D Check disk usage
Discuss / Board
Q.342 Which mobile OS is known for its security and sandboxed app environment?
A iOS
B Android
C Symbian
D Windows Phone
Discuss / Board
Q.343 What does 'social engineering' often exploit in cybersecurity?
A Human psychology
B Software bugs
C Network ports
D Encryption flaws
Discuss / Board
Q.344 Which type of malware appears to perform a desirable function but hides a malicious payload?
A Trojan horse
B Worm
C Virus
D Ransomware
Discuss / Board
Q.345 What is the primary function of an Intrusion Prevention System (IPS)?
A Detect and block malicious traffic in real time
B Only log suspicious activity
C Manage firewall rules
D Encrypt data packets
Discuss / Board
Q.346 Which encryption method uses the same key for both encryption and decryption?
A Symmetric encryption
B Asymmetric encryption
C Hashing
D Digital signature
Discuss / Board
Q.347 What is the purpose of '2FA' (Two-Factor Authentication)?
A Adds an extra layer of security by requiring two forms of verification
B Doubles the password length
C Uses two different antivirus programs
D Creates a backup of login credentials
Discuss / Board
Q.348 Which protocol is used to securely browse websites?
A HTTPS
B FTP
C SMTP
D Telnet
Discuss / Board
Q.349 What does the 'To' field in an email specify?
A The primary recipient(s)
B The sender
C The subject
D The carbon copy recipients
Discuss / Board
Q.350 Which of the following is a valid domain name extension for educational institutions?
A .edu
B .com
C .org
D .net
Discuss / Board
Q.351 What is the function of a 'bookmark' in a web browser?
A Save a link to a web page for quick access later
B Block ads on the page
C Translate the page
D Print the page
Discuss / Board
Q.352 Which search engine operator searches for a specific file type?
A filetype:
B intitle:
C site:
D inurl:
Discuss / Board
Q.353 What is the purpose of the 'robots.txt' file on a website?
A To instruct search engine crawlers which pages should not be indexed
B To list all links on the site
C To provide the sitemap
D To block spam emails
Discuss / Board
Q.354 Which network protocol is used to resolve domain names to IP addresses?
A DNS
B DHCP
C SNMP
D ARP
Discuss / Board
Q.355 What is the default subnet mask for a Class B IP address?
A 255.255.0.0
B 255.0.0.0
C 255.255.255.0
D 255.255.255.255
Discuss / Board
Q.356 Which HTTP method is used to submit form data to a server?
A POST
B GET
C PUT
D DELETE
Discuss / Board
Q.357 What does the '401 Unauthorized' HTTP status code indicate?
A The request requires user authentication
B The server cannot find the resource
C The server encountered an internal error
D The request was successful
Discuss / Board
Q.358 Which cloud service model provides access to software applications over the internet on a subscription basis?
A SaaS
B IaaS
C PaaS
D DaaS
Discuss / Board
Q.359 In cybersecurity, what is the principle of 'least privilege'?
A Users are given only the minimum levels of access needed to perform their job
B All users have admin rights
C Privileges are never revoked
D Only the CEO has access
Discuss / Board
Q.360 Which of the following is a hashing algorithm?
A SHA-256
B AES
C RSA
D DES
Discuss / Board

Master Computer set 2 for All Competitive Exams 2026

Practicing Computer set 2 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.

For additional MCQs, detailed question explanations, exam discussions, and doubt-solving support, candidates can also visit Ask JK Exam Library , the official Q&A and practice platform of JK Exam Library. The platform offers 50,000+ verified MCQs covering JKSSB, JKPSC, SSC, UPSC, Railway, Banking, Police, Defence, CUET, Teaching, and many other competitive examinations. Every question includes an instant answer with a detailed explanation, helping aspirants understand concepts quickly and improve accuracy. Students can also participate in Daily Quiz Challenges, ask doubts, discuss questions with fellow aspirants, and strengthen their exam preparation through one of the fastest-growing learning communities for competitive exams..

Frequently Asked Questions

Select individual options to trigger real-time validation matrix hooks. This evaluates your answers instantly and shows the correct methodology in the solution box.

Absolutely. Our content team regularly updates the question bank to reflect the latest JKSSB, SSC, Banking, Railways, Defence, and other competitive exam trends.

The number of questions varies by topic and is regularly expanded to provide comprehensive practice coverage for competitive examinations.

Yes, you can attempt the questions as many times as needed to improve accuracy, speed, and concept retention.

Yes, important questions are accompanied by explanations and solutions to help candidates understand the correct answers effectively.

Yes, this topic is frequently covered in various competitive examinations and forms an important part of exam preparation strategies.

Absolutely. The questions are suitable for both beginners and advanced learners preparing for competitive examinations.

Topic-wise practice helps identify weak areas, strengthen concepts, and build confidence before attempting full-length mock tests.

Yes, the question database is continuously updated with new MCQs to maintain relevance and align with changing exam patterns.

Regular practice with topic-wise MCQs helps candidates reduce mistakes, improve accuracy, and perform better in actual examinations.

Yes, topic-specific MCQs provide a quick and effective revision method for reinforcing important concepts before exams.

The question bank includes a mix of easy, moderate, and challenging questions designed to reflect real competitive exam standards.

Solution View

Correct Answer
Detailed Explanation: