Information and Communication Technology MCQ

11. The computers which are relatively rare because of their cost and size are.....

Correct Answer: Correct answer is: (B) Super Computers.

Exam Relevance: Computer Science, Engineering, IT Exams

Difficulty: Moderate

Concept notes: Supercomputers are high-performance computing systems used for complex calculations and simulations. They are relatively rare due to their high cost and large size.

Common Mistakes: Students may confuse supercomputers with mainframe computers, which are also powerful but used more for business and data processing tasks.

Explanations: Supercomputers are the most powerful type of computer, designed to perform complex calculations and simulations. They are relatively rare because they are extremely expensive and require large spaces for installation and cooling. This makes them less accessible compared to other types of computers like microcomputers or mainframe computers.

Option Analysis:

Option A: Microcomputers are common and affordable, making them widely used in homes and offices.
Option B: Supercomputers are rare due to their high cost and large size, which limits their availability.
Option C: Mainframe computers are powerful but are more commonly used in business environments for data processing.
Option D: This option is not applicable as the correct answer is identified.

Mnemonic: Super Size, Super Cost, Super Rare

12. The process of organising files so they exist in contiguous sectors on disk.

Correct Answer: Correct answer is: (A) Defragmentation.

Exam Relevance: AP Computer Science Principles, A+ Certification, CompTIA IT Fundamentals

Difficulty: Easy

Concept notes: Defragmentation is the process of organizing files on a disk so that they occupy contiguous sectors, improving access speed and efficiency.

Common Mistakes: Students may confuse defragmentation with sorting, which is a different process that involves arranging data in a specific order.

Explanations: Defragmentation involves rearranging files and free space on a disk to ensure that each file is stored in contiguous sectors. This process reduces fragmentation, which can slow down the computer's performance. By organizing files in a contiguous manner, the disk can read and write data more efficiently, leading to improved system performance.

Option Analysis:

Option A: Correct. Defragmentation is the process of organizing files so they exist in contiguous sectors on disk.
Option B: Incorrect. Sorting involves arranging data in a specific order, not organizing files into contiguous sectors.
Option C: Incorrect. Copying involves duplicating files, not organizing them into contiguous sectors.
Option D: Incorrect. Moving involves relocating files, not organizing them into contiguous sectors.

13. When you 'compress' a file, what happens?

Correct Answer: Correct answer is: (B) The bitsize reduces and unnecessary information is removed.

Exam Relevance: AP Computer Science, SAT Subject Test in Computer Science, A-Level Computing

Difficulty: Moderate

Concept notes: Compression reduces the size of a file by removing redundant or unnecessary data.

Common Mistakes: Students may think that compression increases file size or that it involves physical changes to the computer.

Explanations: File compression algorithms analyze the data in a file and remove redundant or unnecessary information. This process reduces the file size without losing the essential content. The bitsize of the file decreases as a result of this compression.

Option Analysis:

Option A: This is incorrect as compressing a file does not involve physical changes to the computer.
Option B: This is correct as compression reduces the file size by removing unnecessary information.
Option C: This is incorrect as compressing a file does not involve physical changes to the computer.
Option D: This is incorrect as compression reduces, not increases, the file size.

Mnemonic: Bitsize Down, Unnecessary Out

14. A hacker installs malicious code on a personal computer or server. This code then redirects clicks you make on a Web site to another fraudulent Web site without your consent or knowledge. It is known as.....

Correct Answer: Correct answer is: (B) Pharming.

Exam Relevance: CISSP, CompTIA Security+, CEH

Difficulty: Moderate

Concept notes: Pharming is a type of cyber attack where malicious code is installed on a personal computer or server to redirect users to fraudulent websites without their knowledge.

Common Mistakes: Students may confuse pharming with phishing, which involves tricking users into providing sensitive information through deceptive emails or websites.

Explanations: Pharming involves the installation of malicious code on a computer or server that redirects users to fraudulent websites. This is different from phishing, which relies on social engineering to trick users into providing sensitive information. The correct answer is pharming because it accurately describes the scenario where malicious code redirects users to fraudulent websites without their consent or knowledge.

Option Analysis:

Option A: Smishing is a form of phishing that uses SMS text messages to trick users into providing sensitive information. It does not involve the installation of malicious code to redirect users to fraudulent websites.
Option B: Pharming is the correct answer as it involves the installation of malicious code to redirect users to fraudulent websites without their consent or knowledge.
Option C: This option is incorrect as the correct answer is provided by option B.
Option D: This option is incorrect as not all the options are correct.

Mnemonic: Pharming: "Farm" your traffic to a "phishy" site.

15. Advantage of a multiprogramming system is

Correct Answer: Correct answer is: (B) Concurrent processing of two or more programs.

Exam Relevance: Operating Systems, Computer Architecture, Systems Programming

Difficulty: Moderate

Concept notes: Multiprogramming systems allow multiple programs to be loaded into memory and processed concurrently, sharing the CPU and other resources.

Common Mistakes: Students may confuse multiprogramming with multitasking, which involves switching between programs rapidly to give the illusion of simultaneous execution.

Explanations: Multiprogramming systems enable the concurrent processing of multiple programs by loading them into memory and allowing the CPU to switch between them. This approach maximizes CPU utilization and improves system throughput. The correct answer, concurrent processing of two or more programs, accurately describes the key advantage of a multiprogramming system.

Option Analysis:

Option A: Simultaneous execution of program instructions from two applications is not accurate because multiprogramming does not execute instructions from multiple programs at the exact same time; it switches between them rapidly.
Option B: Concurrent processing of two or more programs is the correct description of the advantage of a multiprogramming system.
Option C: Single processing at a time is incorrect as multiprogramming allows for multiple programs to be processed concurrently.
Option D: None of these is incorrect because option B is the correct answer.

16. Which of the following is the most accurate definition of a worm?

Correct Answer: Correct answer is: (B) Malicious code that spreads from device to device but does not need to attach itself to a program in order to do so.

Exam Relevance: CISSP, CompTIA Security+, CEH

Difficulty: Moderate

Concept notes: A worm is a type of malware that can replicate itself and spread to other devices without needing to attach itself to a host program.

Common Mistakes: Students may confuse worms with viruses, which do require attachment to a host program to spread.

Explanations: Worms are self-replicating and can spread independently, distinguishing them from viruses. They do not need to attach themselves to a program to propagate, making them a standalone threat. This characteristic is what makes option B the correct definition.

Option Analysis:

Option A: This describes a virus, not a worm, as viruses need to attach to a host program.
Option B: This accurately defines a worm, as it can spread independently without needing to attach to a program.
Option C: This describes a trojan, which masquerades as a legitimate program but does not self-replicate.
Option D: This describes spyware, which steals information but does not necessarily self-replicate or spread independently.

Mnemonic: Worms Walk Without Wires, Viruses Vampirize Victims

17. Holding the mouse button down while moving an object or text is known as.....

Correct Answer: Correct answer is: (B) Dragging.

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Easy

Concept notes: Dragging refers to the action of holding down the mouse button while moving an object or text on a computer screen.

Common Mistakes: Students may confuse dragging with dropping, which is the action of releasing the mouse button after dragging.

Explanations: Dragging is the process of moving an object or text by holding down the mouse button and moving the mouse. This action is commonly used in graphical user interfaces to reposition items or to initiate a transfer of data.

Option Analysis:

Option A: Moving refers to the action of changing the position of an object or text, but it does not specify the method of holding down the mouse button.
Option B: Dragging is the correct term for holding down the mouse button while moving an object or text.
Option C: Dropping is the action of releasing the mouse button after dragging, not the act of holding down the button while moving.
Option D: Highlighting is the act of selecting text or objects, typically by clicking and dragging over them, but it does not specifically refer to the act of moving objects.

18. The process of keeping information uniform is called.....

Correct Answer: Correct answer is: (A) Data consistency.

Exam Relevance: Database Management Systems, Information Systems, Computer Science Exams

Difficulty: Easy

Concept notes: Data consistency refers to the uniformity and accuracy of data across different systems or databases.

Common Mistakes: Students may confuse data consistency with data security, which is a different concept.

Explanations: Data consistency ensures that information remains uniform and accurate across various systems or databases. This is crucial for maintaining reliable and trustworthy data. Increased security (Option B) is a different concept that focuses on protecting data from unauthorized access or breaches. Option C, "None of the Above," is incorrect as data consistency is a valid and important concept. Option D, "All the above," is incorrect because not all options are correct.

Option Analysis:

Option A: Correct. Data consistency ensures uniformity and accuracy of data.
Option B: Incorrect. Increased security is about protecting data, not keeping it uniform.
Option C: Incorrect. Data consistency is a valid concept.
Option D: Incorrect. Not all options are correct.

19. Below are 2 advantages and 1 disadvantage for Graphical User Interface.Choose the disadvantage

Correct Answer: Correct answer is: (C) Takes up a lot of processing power and memory.

Exam Relevance: AP Computer Science Principles, IB Computer Science, A-Level Computing

Difficulty: Moderate

Concept notes: Graphical User Interfaces (GUIs) are user-friendly but can be resource-intensive.

Common Mistakes: Students may overlook the resource consumption aspect of GUIs, focusing only on their ease of use.

Explanations: Graphical User Interfaces (GUIs) are designed to be intuitive and user-friendly, making them easy for beginners to use and reducing the need to memorize commands. However, GUIs require more processing power and memory compared to command-line interfaces because they need to render visual elements and handle user interactions. This increased resource consumption is a disadvantage, especially in systems with limited resources.

Option Analysis:

Option A: This is an advantage of GUIs as they reduce the need for users to memorize commands.
Option B: This is also an advantage of GUIs as they are simple to use for beginners.
Option C: This is the correct disadvantage as GUIs require more processing power and memory.
Option D: This is incorrect as there is a valid disadvantage listed in the options.

Mnemonic: GUIs: Great for users, but greedy on resources.

20. What is the function of Recycle Bin?

Correct Answer: Correct answer is: (A) Store deleted file.

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Very Easy

Concept notes: The Recycle Bin is a temporary storage location for files and folders that have been deleted from the computer.

Common Mistakes: Students may confuse the Recycle Bin with other temporary storage locations like the Temp folder or the Downloads folder.

Explanations: The Recycle Bin is designed to temporarily hold files and folders that have been deleted from the computer. This allows users to recover accidentally deleted items. The other options are incorrect because the Recycle Bin does not specifically store temporary files, corrupted files, or document files.

Option Analysis:

Option A: Correct. The Recycle Bin stores deleted files.
Option B: Incorrect. The Recycle Bin does not store temporary files.
Option C: Incorrect. The Recycle Bin does not store corrupted files.
Option D: Incorrect. The Recycle Bin does not specifically store document files.

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3 thoughts on “Information and Communication Technology MCQ - Set 2”

Peter Ross April 8, 2020

The MCQ is quite entertaining and will help in increasing knowledge also.
Reyaz Ahmad khan December 26, 2020

plz help me in regard with current Affairs
Eshita Nandpal April 11, 2021

Plz give make a part of unit wise

3 thoughts on “Information and Communication Technology MCQ - Set 2”

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