Information and Communication Technology MCQ

481. Which of the following is used to center a paragraph?

Correct Answer: Correct answer is: (A) Ctrl + E.

Exam Relevance: Microsoft Office Certification, Google Workspace Certification

Difficulty: Very Easy

Concept notes: The correct answer is Ctrl + E, which is the keyboard shortcut used to center align a paragraph in most word processing software.

Common Mistakes: Students may confuse Ctrl + E with other keyboard shortcuts like Ctrl + C (copy) or Ctrl + F (find).

Explanations: Ctrl + E is the standard keyboard shortcut for centering a paragraph in word processing applications. This shortcut is widely used and recognized across various software platforms, including Microsoft Word and Google Docs. The other options, Ctrl + C and Ctrl + F, are used for copying and finding text, respectively, and do not center a paragraph.

Option Analysis:

Option A: Correct. Ctrl + E is the keyboard shortcut for centering a paragraph.
Option B: Incorrect. Ctrl + C is the keyboard shortcut for copying text.
Option C: Incorrect. Ctrl + F is the keyboard shortcut for finding text.
Option D: Incorrect. Not all the above options are correct for centering a paragraph.

Mnemonic: E for "Evenly" - think of centering as making text evenly aligned.

482. A computer-controlled device for training exercises that duplicates the work environment is a:

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

Exam Relevance: GRE, GMAT, PMP, ITIL

Difficulty: Easy

Concept notes: A simulator is a device that replicates the work environment to train individuals in a controlled setting.

Common Mistakes: Students may confuse a simulator with a duplicator, which simply copies data or information rather than creating a training environment.

Explanations: A simulator is designed to mimic the work environment, allowing users to practice and learn in a realistic but controlled setting. This makes it the most appropriate choice for training exercises that require a duplication of the work environment.

Option Analysis:

Option A: Correct. A simulator is a device that duplicates the work environment for training purposes.
Option B: Incorrect. A duplicator is a device that copies data or information, not a training environment.
Option C: Incorrect. A trainer is a person or a program that provides instruction, but not necessarily a device that duplicates the work environment.
Option D: Incorrect. COM device refers to a communication device, not a training device that duplicates the work environment.

Mnemonic: Simulate, Simulate, Same Environment

483. The chunks of a memory are known as

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

Exam Relevance: Operating Systems, Computer Architecture, Data Structures

Difficulty: Moderate

Concept notes: In computer memory management, a frame is a fixed-size block of memory used in paging systems. It is the smallest unit of memory that can be allocated or deallocated.

Common Mistakes: Students often confuse frames with other memory management terms like sectors, offsets, and pages. It is important to understand that a frame is specifically the unit of memory in paging systems.

Explanations: In memory management, particularly in paging systems, memory is divided into fixed-size blocks called frames. These frames are the smallest units of memory that can be allocated or deallocated. The term "frame" is used to describe these chunks of memory, making it the correct answer.

Option Analysis:

Option A: Sector is a term more commonly used in disk storage, not memory management.
Option B: Offset refers to the displacement within a segment or page, not the chunk of memory itself.
Option C: Page is a larger unit of memory that is divided into frames, but the question specifically asks for the chunks of memory.
Option D: Frame is the correct term for the fixed-size blocks of memory used in paging systems.

Mnemonic: F-R-A-M-E: Fixed, Reliable, Allocated, Memory, Entity

484. Which of the following terms is related to the features of cascading deletion?

Correct Answer: Correct answer is: (C) Referential integrity.

Exam Relevance: Database Management Systems, SQL Exams, Database Design Exams

Difficulty: Moderate

Concept notes: Referential integrity ensures that relationships between tables are maintained, preventing orphaned records.

Common Mistakes: Students may confuse referential integrity with data integrity, which is a broader concept.

Explanations: Cascading deletion is a feature that automatically deletes related records in child tables when a record in the parent table is deleted. This feature is directly related to referential integrity, which ensures that relationships between tables are maintained. By automatically deleting related records, cascading deletion helps maintain referential integrity by preventing orphaned records in the child tables.

Option Analysis:

Option A: Data integrity is a broader concept that includes referential integrity but is not specifically related to cascading deletion.
Option B: Data redundancy is not directly related to cascading deletion or referential integrity.
Option C: Referential integrity is directly related to cascading deletion as it ensures that relationships between tables are maintained.
Option D: Indexing is a database feature that improves query performance and is not directly related to cascading deletion.

Mnemonic: RI for Cascading Deletion

485. Compact audio and video file format. The small size of the files makes them easy to download and e-mail. Format used in portable playback devices.

Correct Answer: Correct answer is: (A) MP3.

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Easy

Concept notes: MP3 is a file format for audio that compresses audio files to make them smaller and easier to store and transfer.

Common Mistakes: Students may confuse MP3 with other file formats like MP4, which is used for both audio and video.

Explanations: MP3 is a widely used audio file format that compresses audio files to reduce their size, making them easy to download and share. This format is commonly used in portable audio devices and is the correct answer as it fits the description provided.

Option Analysis:

Option A: Correct. MP3 is a compact audio file format that is easy to download and e-mail, and is used in portable playback devices.
Option B: Incorrect. MS-DOS is an operating system, not a file format.
Option C: Incorrect. Hypermedia is a term for multimedia information linked together, not a file format.
Option D: Incorrect. The correct answer is provided in the options.

486. The part of a hard disk that is dedicated to a particular operating system or application and accessed as a single unit is called.....

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

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Easy

Concept notes: A partition is a section of a hard disk that is treated as a separate unit and can be formatted with a file system to store data.

Common Mistakes: Students may confuse the term "partition" with "separation," which is not a technical term used in computer storage.

Explanations: A partition is a dedicated section of a hard disk that is formatted and used as a separate unit. This allows multiple operating systems or applications to be installed on the same physical hard drive, each with its own dedicated space. The term "partition" is the correct technical term used in computer storage.

Option Analysis:

Option A: Separation is not a technical term used in computer storage.
Option B: Partition is the correct term for a dedicated section of a hard disk.
Option C: None of the above is incorrect as "partition" is a valid term.
Option D: All the above is incorrect as only "partition" is the correct term.

487. What type of commerce is enabled by technology.....

Correct Answer: Correct answer is: (A) E-commerce.

Exam Relevance: CAT, GMAT, GRE, CFA

Difficulty: Very Easy

Concept notes: E-commerce refers to the buying and selling of goods and services over the internet.

Common Mistakes: Students may confuse e-commerce with specific platforms like eBay or Amazon, which are examples of e-commerce rather than the concept itself.

Explanations: E-commerce is the type of commerce enabled by technology, specifically the internet, for conducting business transactions. It encompasses a wide range of activities including online shopping, digital payments, and supply chain management.

Option Analysis:

Option A: E-commerce is the correct term for commerce enabled by technology.
Option B: EBuy is not a recognized term for the broader concept of commerce enabled by technology.
Option C: Internet is the technology that enables e-commerce but is not a type of commerce itself.
Option D: None of these is incorrect as e-commerce is a valid and recognized term.

Mnemonic: E-commerce: Electronic Commerce

488. An electronic bill board that has a short text or graphical advertising message is referred to as

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

Exam Relevance: CAT, GRE, GMAT, Marketing Exams

Difficulty: Easy

Concept notes: A banner is a form of digital advertising that appears on websites or electronic billboards, often containing a short text or graphical message.

Common Mistakes: Students may confuse a banner with other advertising terms like bulletin or strap, which are not typically used in the context of electronic billboards.

Explanations: A banner is the correct term for a short text or graphical advertising message displayed on an electronic billboard. Banners are commonly used in digital advertising to attract attention and convey a message succinctly.

Option Analysis:

Option A: A bulletin typically refers to a notice board or a regular publication, not an electronic display.
Option B: A strap is a term used in advertising for a short slogan or tagline, but it does not specifically refer to electronic displays.
Option C: A bridge line is a term used in advertising to connect the headline and the body copy, not related to electronic displays.
Option D: A banner is the correct term for a short text or graphical advertising message displayed on an electronic billboard.

Mnemonic: Banner = Big Advertising Notice, Electronic, Recognizable

489. Which of the following medical activity was made possible by computers?

Correct Answer: Correct answer is: (C) Brain scan.

Exam Relevance: GRE, MCAT, USMLE

Difficulty: Moderate

Concept notes: Computers have significantly advanced medical imaging technologies, particularly in the field of brain scans. Modern brain scans, such as MRI and CT scans, rely on complex algorithms and computer processing to generate detailed images of the brain.

Common Mistakes: Students may mistakenly believe that all medical procedures have been equally advanced by computers, overlooking the specific advancements in imaging technologies.

Explanations: Computers have revolutionized brain scans by enabling the processing of large amounts of data and the creation of detailed, high-resolution images. This technology allows for precise diagnosis and monitoring of brain conditions, which would be impossible without the computational power provided by computers.

Option Analysis:

Option A: Open Heart Surgery is a surgical procedure that has been improved by technology, but it is not primarily dependent on computers for its execution.
Option B: Vaccination is a medical procedure that has been developed through biological research and does not rely on computers for its core function.
Option C: Brain scan is a medical imaging technique that heavily relies on computer technology to process and interpret the data collected from the brain.
Option D: X Ray is an imaging technique that has been enhanced by computers, but it is not as advanced or dependent on computer technology as brain scans.

Mnemonic: MRI, CT, Scan, Brain, Compute

490. System used for cheque clearing which is able to read data printed onto cheques in magnetic ink.

Correct Answer: Correct answer is: (A) MICR (magnetic ink character recognition).

Exam Relevance: CFA, CPA, Banking Exams

Difficulty: Easy

Concept notes: Magnetic Ink Character Recognition (MICR) is a technology used in the banking industry for the processing of cheques. It reads characters printed in magnetic ink, which allows for quick and accurate processing of financial documents.

Common Mistakes: Students may confuse MICR with other magnetic technologies like magnetic stripe readers, which are used for credit cards and other identification cards.

Explanations: MICR is specifically designed to read data printed onto cheques in magnetic ink. This technology is used in cheque clearing systems to ensure the accurate and efficient processing of cheques. The magnetic ink used in MICR is sensitive to magnetic fields, allowing the system to read the characters printed on the cheque.

Option Analysis:

Option A: Correct. MICR is the system used for reading data printed onto cheques in magnetic ink.
Option B: Incorrect. Magnetic stripe readers are used for reading magnetic stripes on credit cards and other identification cards, not for reading cheques.
Option C: Incorrect. Magnetic stripe refers to the strip on credit cards and other identification cards, not the system used for reading cheques.
Option D: Incorrect. LCD (liquid crystal display) is a technology used for displaying information on screens, not for reading cheques.

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3 thoughts on “Information and Communication Technology MCQ - Set 49”

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 49”

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