Information and Communication Technology MCQ

271. Jerry works at the corporate offices for Nutrition Market Stores. The company has a network that is accessed at the offices using company computers. Jerry has been asked to manage a new office that is being set up on the opposite side of the country from the main corporate offices. He knows that he will need access to the corporate network. How will Jerry have access?

Correct Answer: Correct answer is: (A) Jerry will use an extranet for the new office to access and share information on the corporate network.

Exam Relevance: CISSP, CompTIA Network+, CCNA

Difficulty: Moderate

Concept notes: An extranet is a private network that uses Internet protocols and the public telecommunication system to share part of a business's information or operations with suppliers, vendors, partners, customers, or other businesses.

Common Mistakes: Students may confuse an extranet with an intranet, which is a private network used within an organization.

Explanations: Jerry will use an extranet to access the corporate network from the new office. An extranet allows secure access to a company's network from remote locations, enabling Jerry to share and access information as if he were in the main corporate office. This is the most appropriate solution for remote access to a corporate network.

Option Analysis:

Option A: Correct. An extranet is the appropriate solution for remote access to a corporate network.
Option B: Incorrect. A LAN (Local Area Network) is limited to a single location and would not provide remote access.
Option C: Incorrect. Jerry will be able to access the corporate network through an extranet.
Option D: Incorrect. An intranet is a private network used within an organization and does not provide remote access.

Mnemonic: E for Extranet, E for External Access

272. The dots that compose the image of a digital photograph are called .....

Correct Answer: Correct answer is: (D) Pixels.

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Very Easy

Concept notes: Pixels are the smallest unit of a digital image, representing a single point of color.

Common Mistakes: Students may confuse pixels with other terms like points or resolution points, which are not specific to digital images.

Explanations: Pixels are the dots that make up the image in a digital photograph. Each pixel represents a single point of color, and together they form the complete image. The term "pixels" is the correct and specific term used in digital imaging.

Option Analysis:

Option A: Points are a general term and not specific to digital images.
Option B: Resolution points are related to image clarity but not the individual dots that form the image.
Option C: Digital points is not a standard term used in digital imaging.
Option D: Pixels are the correct term for the dots that compose a digital photograph.

273. A formal technique for evaluating and improving the quality of a relational database schema is known as.....

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

Exam Relevance: DBMS, Database Systems, Computer Science Exams

Difficulty: Easy

Concept notes: Normalization is a formal technique used to reduce redundancy and improve the structure of a relational database schema.

Common Mistakes: Students may confuse normalization with dependency, which is a concept used in the process of normalization but not the technique itself.

Explanations: Normalization is a systematic approach to decomposing tables to eliminate data redundancy and improve data integrity. It involves a series of steps (normal forms) to ensure that each piece of data is stored in only one place, thereby reducing the risk of data anomalies. Dependency, while important, is a concept used within the normalization process but does not encompass the entire technique.

Option Analysis:

Option A: Correct. Normalization is the formal technique for evaluating and improving the quality of a relational database schema.
Option B: Incorrect. Dependency is a concept used in normalization but is not a technique for evaluating and improving the quality of a relational database schema.
Option C: Incorrect. Normalization is a valid technique, so this option is not correct.
Option D: Incorrect. Since normalization is the correct technique, this option is not correct.

274. CRT stands for.....

Correct Answer: Correct answer is: (A) Cathode Ray Tube.

Exam Relevance: SAT, ACT, AP Physics

Difficulty: Very Easy

Concept notes: CRT stands for Cathode Ray Tube, which is a vacuum tube containing an electron gun and a fluorescent screen used to display images.

Common Mistakes: Students may confuse CRT with other acronyms or misspell it.

Explanations: CRT is a well-known acronym in the field of electronics and displays. It refers to a device that uses a beam of electrons to create images on a screen. The acronym stands for Cathode Ray Tube, which accurately describes the technology used in older televisions and computer monitors.

Option Analysis:

Option A: Correct. CRT stands for Cathode Ray Tube.
Option B: Incorrect. This is a nonsensical option and not a valid acronym.
Option C: Incorrect. This is not the correct answer as Option A is correct.
Option D: Incorrect. This is not the correct answer as Option A is correct.

275. To break down a problem into smaller sub-tasks.

Correct Answer: Correct answer is: (C) Decomposition.

Exam Relevance: SAT, ACT, AP Computer Science

Difficulty: Moderate

Concept notes: Decomposition is the process of breaking down a complex problem into smaller, more manageable parts.

Common Mistakes: Students may confuse decomposition with abstraction, which involves simplifying complex systems by hiding unnecessary details.

Explanations: Decomposition is the process of breaking down a complex problem into smaller, more manageable parts. This allows for a more systematic approach to solving the problem by addressing each sub-task individually. The other options do not accurately describe this process. Analysis involves examining the problem in detail, abstraction involves simplifying the problem by hiding unnecessary details, and reduction involves simplifying a problem by transforming it into a simpler problem. Therefore, decomposition is the correct answer.

Option Analysis:

Option A: Analysis involves examining the problem in detail, not breaking it down into smaller parts.
Option B: Abstraction involves simplifying the problem by hiding unnecessary details, not breaking it down into smaller parts.
Option C: Decomposition involves breaking down a complex problem into smaller, more manageable parts.
Option D: Reduction involves simplifying a problem by transforming it into a simpler problem, not breaking it down into smaller parts.

276. Used to retrieve emails from a server. The email stays on the server until user actually deletes it

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

Exam Relevance: CISSP, CompTIA Network+, CCNA

Difficulty: Easy

Concept notes: IMAP (Internet Message Access Protocol) allows users to retrieve emails from a server while keeping them on the server until explicitly deleted. This enables access to the same emails from multiple devices.

Common Mistakes: Students often confuse IMAP with POP3, which downloads emails to a local device and typically deletes them from the server.

Explanations: IMAP is designed to keep emails on the server, allowing users to access their emails from multiple devices without the need to download and delete them. This feature makes IMAP suitable for users who need to access their emails from different devices and want to maintain a consistent view of their inbox across all devices.

Option Analysis:

Option A: IMAP is the correct choice as it allows emails to be retrieved from the server while keeping them there until explicitly deleted.
Option B: POP3 is incorrect because it typically downloads emails to a local device and deletes them from the server.
Option C: SMTP is incorrect as it is used for sending emails, not retrieving them.
Option D: HTTPS is incorrect as it is a secure protocol for web browsing, not for email retrieval.

Mnemonic: IMAP: "In Mail Always Present"

277. Which input device should you use to transfer audio (sounds, music) to a computer as figital files?

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

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Easy

Concept notes: A microphone is an input device that converts sound waves into electrical signals, which can then be digitized and stored as audio files on a computer.

Common Mistakes: Students may confuse a microphone with a digital camera or scanner, which are used for capturing images rather than audio.

Explanations: A microphone is the appropriate device for capturing audio and converting it into digital files. It captures sound waves and converts them into electrical signals that can be processed by a computer and stored as digital audio files. Other options like a mouse, digital camera, or scanner are not designed to capture audio.

Option Analysis:

Option A: A mouse is an input device used for controlling the cursor on a computer screen and is not designed to capture audio.
Option B: A microphone is the correct device for capturing audio and converting it into digital files.
Option C: A digital camera is used for capturing images and videos, not audio.
Option D: A scanner is used for digitizing physical documents and images, not audio.

Mnemonic: Mic for sound, not for sight.

278. If Mrs. Landau shares a document with you and you can't edit it because it is "view only," you should.....

Correct Answer: Correct answer is: (A) Make a copy of the document and edit the copy.

Exam Relevance: Google Workspace Certification, Digital Literacy Exams

Difficulty: Easy

Concept notes: When a document is shared as "view only," it means you cannot directly edit the original document. However, you can make a copy of the document to edit it.

Common Mistakes: Students might think they need to ask the teacher to change the sharing settings, which is unnecessary if they can make a copy.

Explanations: When a document is shared as "view only," you can still access and view the content, but you cannot edit it directly. To work on the document, you should make a copy of it. This allows you to edit the copy without affecting the original document. This method ensures you can complete the assignment without needing to change the sharing settings.

Option Analysis:

Option A: Correct. Making a copy of the document allows you to edit it without changing the original.
Option B: Incorrect. Not doing the assignment is not a viable solution when you can make a copy to edit.
Option C: Incorrect. Complaining to the class is not a productive way to solve the problem.
Option D: Incorrect. Telling Mrs. Landau that she made a mistake is unnecessary since you can make a copy to edit the document.

Mnemonic: Copy to Edit, Not to Complain

279. The computers that we use are digital whereas we live in an analog world which means that we have to translate analog data into digital data. What is the name of the circuit which helps us in this conversion?

Correct Answer: Correct answer is: (B) A/D converter.

Exam Relevance: EE, CE, ECE, CompSci

Difficulty: Easy

Concept notes: The A/D converter, or analog-to-digital converter, is a device that converts continuous analog signals into discrete digital signals. This is essential for interfacing analog data from the real world with digital systems like computers.

Common Mistakes: Students may confuse the A/D converter with the D/A converter, which performs the opposite function of converting digital signals to analog signals.

Explanations: The A/D converter is the correct answer because it is specifically designed to translate analog data into digital data. This is necessary for digital systems to process real-world analog signals, such as audio or temperature readings.

Option Analysis:

Option A: D/A converter is incorrect because it converts digital signals to analog signals, not the other way around.
Option B: A/D converter is correct because it converts analog signals to digital signals.
Option C: Voice recognition is incorrect because it is a technology that interprets spoken words, not a circuit for signal conversion.
Option D: Adapter is incorrect because it is a device that changes one type of electrical connection to another, not a signal converter.

Mnemonic: A/D: Analog to Digital, like "A to D" for "Analog to Digital."

280. Artificial Intelligence is associated with which generation?

Correct Answer: Correct answer is: (C) Fifth Generation.

Exam Relevance: CSIR NET, GATE, GRE, TOEFL

Difficulty: Moderate

Concept notes: Artificial Intelligence is associated with the Fifth Generation of computers.

Common Mistakes: Students may confuse the generations of computers with the development stages of AI, leading to incorrect answers.

Explanations: The Fifth Generation of computers, which began in the 1980s, is characterized by the use of artificial intelligence and parallel processing. This generation aimed to develop computers that could understand natural language, reason, and learn. Therefore, the correct association is with the Fifth Generation.

Option Analysis:

Option A: The First Generation of computers used vacuum tubes and did not incorporate AI technology.
Option B: The Second Generation of computers used transistors and focused on improving speed and reliability, not AI.
Option C: The Fifth Generation of computers is associated with the development of AI and parallel processing.
Option D: The Sixth Generation of computers is not a widely recognized term and does not specifically refer to AI.

Mnemonic: AI = Fifth Gen

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3 thoughts on “Information and Communication Technology MCQ - Set 28”

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 28”

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