Q. What feature in Excel allows you to automatically fill a series of cells? (2023)
A.
AutoFill
B.
Fill Handle
C.
Series Fill
D.
Cell Fill
Show solution
Solution
The Fill Handle is a feature in Excel that allows you to automatically fill a series of cells.
Correct Answer:
B
— Fill Handle
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A.
A state where processes are waiting indefinitely for resources
B.
A method of scheduling processes
C.
A technique for memory management
D.
A way to optimize file access
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Solution
A deadlock occurs when processes are waiting indefinitely for resources held by each other.
Correct Answer:
A
— A state where processes are waiting indefinitely for resources
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Q. What is a key advantage of using virtual memory?
A.
Increased physical memory
B.
Isolation of processes
C.
Simplified memory management
D.
Larger address space for processes
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Solution
Virtual memory allows processes to use a larger address space than the physical memory available.
Correct Answer:
D
— Larger address space for processes
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A.
An error in file system access
B.
A request for a page not currently in memory
C.
A type of deadlock
D.
A scheduling error
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Solution
A page fault occurs when a program tries to access a page that is not currently loaded in memory.
Correct Answer:
B
— A request for a page not currently in memory
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Q. What is a thread in the context of operating systems?
A.
A lightweight process
B.
A type of memory allocation
C.
A method of file access
D.
A synchronization mechanism
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Solution
A thread is often referred to as a lightweight process, sharing the same memory space but having its own execution stack.
Correct Answer:
A
— A lightweight process
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A.
A lightweight process
B.
A type of file system
C.
A method of memory allocation
D.
A synchronization mechanism
Show solution
Solution
A thread is often referred to as a lightweight process, as it shares the same memory space with other threads in the same process.
Correct Answer:
A
— A lightweight process
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Q. What is phishing? (2020)
A.
A type of email encryption
B.
A method to secure websites
C.
A fraudulent attempt to obtain sensitive information
D.
A way to send large files
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Solution
Phishing is a fraudulent attempt to obtain sensitive information, often through deceptive emails.
Correct Answer:
C
— A fraudulent attempt to obtain sensitive information
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Q. What is the default file extension for a PowerPoint presentation? (2023)
A.
.ppt
B.
.pptx
C.
.docx
D.
.xlsx
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Solution
The default file extension for a PowerPoint presentation is '.pptx'.
Correct Answer:
B
— .pptx
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Q. What is the default file extension for a Word document? (2023)
A.
.doc
B.
.docx
C.
.txt
D.
.pdf
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Solution
The default file extension for a Word document is .docx since Word 2007.
Correct Answer:
B
— .docx
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Q. What is the function of a file system in an operating system?
A.
To manage memory
B.
To manage files
C.
To manage processes
D.
To manage users
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Solution
The file system manages files within the operating system.
Correct Answer:
B
— To manage files
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Q. What is the function of a firewall in a computer network?
A.
To speed up internet connection
B.
To protect against unauthorized access
C.
To store data
D.
To manage network traffic
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Solution
A firewall is used to protect a network by controlling incoming and outgoing traffic and preventing unauthorized access.
Correct Answer:
B
— To protect against unauthorized access
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Q. What is the function of a firewall in internet security? (2023)
A.
To speed up internet connection
B.
To block unauthorized access
C.
To store data
D.
To manage email accounts
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Solution
A firewall is used to block unauthorized access to or from a private network, enhancing internet security.
Correct Answer:
B
— To block unauthorized access
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Q. What is the function of a power supply unit (PSU) in a computer?
A.
Store data
B.
Provide power
C.
Cool the system
D.
Connect peripherals
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Solution
The power supply unit (PSU) provides power to all components of the computer.
Correct Answer:
B
— Provide power
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Q. What is the function of an email client?
A.
To host websites
B.
To send and receive emails
C.
To create web pages
D.
To manage databases
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Solution
An email client is software used to send and receive emails.
Correct Answer:
B
— To send and receive emails
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Q. What is the main advantage of using a multilevel queue scheduling algorithm?
A.
Simplicity in implementation
B.
Fairness among processes
C.
Prioritization of different types of processes
D.
Reduced context switching
Show solution
Solution
Multilevel queue scheduling allows prioritization of different types of processes based on their characteristics.
Correct Answer:
C
— Prioritization of different types of processes
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Q. What is the main advantage of using semaphores in synchronization?
A.
They are easy to implement
B.
They prevent race conditions
C.
They are faster than mutexes
D.
They require less memory
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Solution
Semaphores are used to prevent race conditions by controlling access to shared resources.
Correct Answer:
B
— They prevent race conditions
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Q. What is the main advantage of using threads over processes?
A.
Threads are more secure
B.
Threads require less memory overhead
C.
Threads can run on different CPUs
D.
Threads are easier to manage
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Solution
Threads require less memory overhead compared to processes because they share the same memory space.
Correct Answer:
B
— Threads require less memory overhead
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Q. What is the main function of a power supply unit (PSU) in a computer? (2022)
A.
To cool the system
B.
To provide power to components
C.
To store data
D.
To connect peripherals
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Solution
The power supply unit (PSU) converts electrical power from an outlet into usable power for the computer's internal components.
Correct Answer:
B
— To provide power to components
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Q. What is the main function of the operating system? (2019)
A.
Manage hardware resources
B.
Run applications
C.
Provide internet access
D.
Store data
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Solution
The main function of the operating system is to manage hardware resources and provide a user interface.
Correct Answer:
A
— Manage hardware resources
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Q. What is the main goal of a scheduling algorithm?
A.
To maximize CPU utilization
B.
To minimize memory usage
C.
To increase disk throughput
D.
To reduce power consumption
Show solution
Solution
The main goal of a scheduling algorithm is to maximize CPU utilization by efficiently managing process execution.
Correct Answer:
A
— To maximize CPU utilization
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Q. What is the main goal of CPU scheduling?
A.
To maximize CPU utilization
B.
To minimize memory usage
C.
To increase disk access speed
D.
To reduce power consumption
Show solution
Solution
The main goal of CPU scheduling is to maximize CPU utilization by efficiently allocating CPU time to processes.
Correct Answer:
A
— To maximize CPU utilization
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Q. What is the main goal of process synchronization?
A.
To increase CPU utilization
B.
To prevent race conditions
C.
To manage memory efficiently
D.
To optimize disk access
Show solution
Solution
The main goal of process synchronization is to prevent race conditions, ensuring that multiple processes can operate safely on shared data.
Correct Answer:
B
— To prevent race conditions
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Q. What is the main purpose of a firewall?
A.
To speed up internet connection
B.
To protect against unauthorized access
C.
To store data
D.
To manage network traffic
Show solution
Solution
A firewall is used to protect a network from unauthorized access and threats.
Correct Answer:
B
— To protect against unauthorized access
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Q. What is the main purpose of a motherboard?
A.
Store data
B.
Connect all components
C.
Power the computer
D.
Input data
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Solution
The motherboard connects all components of a computer, allowing them to communicate with each other.
Correct Answer:
B
— Connect all components
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Q. What is the main purpose of an operating system's kernel? (2023)
A.
To provide a user interface
B.
To manage system resources
C.
To run applications
D.
To connect to the internet
Show solution
Solution
The kernel is the core component of an operating system that manages system resources and communication between hardware and software.
Correct Answer:
B
— To manage system resources
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Q. What is the main purpose of an operating system?
A.
To manage hardware and software resources
B.
To provide internet access
C.
To run applications
D.
To store files
Show solution
Solution
The main purpose of an operating system is to manage hardware and software resources on a computer.
Correct Answer:
A
— To manage hardware and software resources
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Q. What is the maximum data transfer rate of USB 3.0?
A.
480 Mbps
B.
5 Gbps
C.
10 Gbps
D.
20 Gbps
Show solution
Solution
USB 3.0 has a maximum data transfer rate of 5 Gbps (gigabits per second).
Correct Answer:
B
— 5 Gbps
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Q. What is the maximum number of rows in a single Excel worksheet? (2023)
A.
65,536
B.
1,048,576
C.
32,768
D.
256
Show solution
Solution
The maximum number of rows in a single Excel worksheet is 1,048,576.
Correct Answer:
B
— 1,048,576
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Q. What is the maximum number of rows in an Excel worksheet? (2023)
A.
65,536
B.
1,048,576
C.
32,768
D.
256
Show solution
Solution
The maximum number of rows in an Excel worksheet is 1,048,576.
Correct Answer:
B
— 1,048,576
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Q. What is the maximum size of an email attachment allowed by most email providers?
A.
5 MB
B.
10 MB
C.
25 MB
D.
50 MB
Show solution
Solution
Most email providers allow attachments up to 25 MB.
Correct Answer:
C
— 25 MB
Learn More →
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Computer Awareness MCQ & Objective Questions
Computer Awareness is a crucial subject for students preparing for school exams and competitive tests in India. Understanding the fundamentals of computers not only enhances your knowledge but also boosts your confidence in tackling objective questions. Practicing MCQs and important questions in this area can significantly improve your exam preparation and help you score better.
What You Will Practise Here
Basic computer terminology and definitions
Types of software and hardware components
Operating systems and their functions
Internet basics and online safety
Data storage and management concepts
Networking fundamentals and protocols
Common computer applications and their uses
Exam Relevance
Computer Awareness is an integral part of the curriculum for CBSE, State Boards, and various competitive exams like NEET and JEE. Questions in these exams often focus on the application of computer concepts, requiring students to demonstrate their understanding through MCQs. Common patterns include identifying components, explaining functions, and solving problems related to computer operations.
Common Mistakes Students Make
Confusing hardware with software components
Misunderstanding the functions of different operating systems
Overlooking the importance of internet safety measures
Failing to grasp basic networking concepts
Neglecting to practice application-based questions
FAQs
Question: What are some important Computer Awareness MCQ questions to focus on?Answer: Focus on questions related to computer components, software types, and internet basics, as these are frequently tested.
Question: How can I improve my Computer Awareness skills for exams?Answer: Regular practice of objective questions and understanding key concepts will enhance your skills and confidence.
Start solving practice MCQs today to test your understanding of Computer Awareness. The more you practice, the better prepared you'll be for your exams. Let's boost your knowledge and exam scores together!
