Information and Communication Technology MCQ

261. A generic name for Intel processors released after the original 8086 processor is.....?

Correct Answer: Correct answer is: (B) X86.

Exam Relevance: AP Computer Science

Difficulty: Easy

Concept notes: The term "X86" is a generic name for a family of instruction set architectures used in Intel processors and their compatible competitors. It includes processors released after the original 8086.

Common Mistakes: Students may confuse "X86" with specific processor models like "Pentium," which is a brand name for a series of processors within the X86 architecture.

Explanations: The term "X86" refers to the instruction set architecture used in Intel processors and their compatible counterparts. This architecture includes processors released after the original 8086, such as the 80286, 80386, 80486, and subsequent models. The term "Pentium" is a brand name for a specific series of processors within the X86 architecture, but it does not encompass all processors released after the 8086.

Option Analysis:

Option A: Pentium is a brand name for a series of processors within the X86 architecture, but it does not represent all processors released after the 8086.
Option B: X86 is the correct generic name for the family of instruction set architectures used in Intel processors and their compatible competitors, including those released after the 8086.
Option C: Pentium 286 is not a valid processor name; the 286 refers to the 80286 processor, which is part of the X86 architecture but not a brand name like Pentium.
Option D: None of these is incorrect because X86 is a valid and widely used term for the family of processors.

Mnemonic: X86: eXtended 86, for processors after 8086.

262. In Excel which do you press to enter the current date in a cell?

Correct Answer: Correct answer is: (B) Ctrl + ;

Exam Relevance: Microsoft Office Specialist, Excel certification exams

Difficulty: Easy

Concept notes: In Excel, the keyboard shortcut Ctrl + ; is used to insert the current date into a cell.

Common Mistakes: Students may confuse the shortcut for inserting the current date with the shortcut for inserting the current time, which is Ctrl + Shift + :.

Explanations: The correct answer is Ctrl + ; because this keyboard shortcut is specifically designed to insert the current date into a cell in Excel. When this combination is pressed, Excel automatically enters the current date in the format set by the system's regional settings.

Option Analysis:

Option A: Ctrl + Shift +: is used to insert the current time, not the date.
Option B: Ctrl + ; is the correct shortcut for inserting the current date.
Option C: Ctrl + F10 is not related to inserting the current date or time in Excel.
Option D: Since only one option is correct, "All of above" is incorrect.

Mnemonic: Date: D for Date, D for ; (semicolon)

263. What function do you use to find the lowest number?

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

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Very Easy

Concept notes: The MIN function is used to find the lowest number in a set of values.

Common Mistakes: Students may confuse the MIN function with the MAX function, which finds the highest number.

Explanations: The MIN function is specifically designed to identify the smallest value in a given set of numbers. It is a fundamental function in spreadsheet software like Microsoft Excel and Google Sheets, used for data analysis and sorting.

Option Analysis:

Option A: SUM is used to add up all the numbers in a set, not to find the lowest number.
Option B: MAX is used to find the highest number in a set, not the lowest.
Option C: MIN is used to find the lowest number in a set, which is the correct function for this question.
Option D: AVERAGE is used to calculate the mean of a set of numbers, not to find the lowest number.

Mnemonic: MINimum = Lowest

264. Advantage of 3NF?

Correct Answer: Correct answer is: (A) It eliminates redundant data which in turn saves space and reduces manipulation anomalies.

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

Difficulty: Moderate

Concept notes: The Third Normal Form (3NF) is a level of database normalization that ensures that all non-key attributes are dependent only on the primary key and not on any other non-key attributes.

Common Mistakes: Students often confuse 3NF with other normalization forms, such as 2NF or BCNF, which have different criteria for eliminating data redundancy and anomalies.

Explanations: The Third Normal Form (3NF) eliminates redundant data by ensuring that all non-key attributes are dependent only on the primary key. This reduces data redundancy, saves storage space, and minimizes the risk of data anomalies such as update, insertion, and deletion anomalies. By adhering to 3NF, a database ensures that each piece of data is stored in one place, which simplifies data management and maintenance.

Option Analysis:

Option A: Correct. 3NF eliminates redundant data, saving space and reducing anomalies.
Option B: Incorrect. "Data status" is not a term used in normalization.
Option C: Incorrect. SQL querying is not a direct advantage of 3NF.
Option D: Incorrect. 3NF does not prevent updates; it manages them more effectively.

265. Which of the following architecture is/are not suitable for realizing SIMD

Correct Answer: Correct answer is: (C) Von Neumann.

Exam Relevance: Computer Architecture, Computer Organization, Parallel Computing

Difficulty: Moderate

Concept notes: The Von Neumann architecture is not suitable for realizing SIMD (Single Instruction Multiple Data) because it is designed for sequential processing, not parallel processing.

Common Mistakes: Students may mistakenly believe that the Von Neumann architecture can support SIMD because it is a well-known and widely used architecture.

Explanations: The Von Neumann architecture is characterized by a single memory space shared by both data and instructions, and a single processing unit that executes instructions sequentially. This architecture is not designed to handle multiple data streams simultaneously, which is a key requirement for SIMD. In contrast, Vector and Array processors are specifically designed to handle SIMD operations efficiently by processing multiple data elements in parallel with a single instruction.

Option Analysis:

Option A: Vector Processor is suitable for SIMD as it can process multiple data elements in parallel with a single instruction.
Option B: Array Processor is also suitable for SIMD as it can handle multiple data streams simultaneously.
Option C: Von Neumann architecture is not suitable for SIMD because it is designed for sequential processing, not parallel processing.
Option D: Since Von Neumann is not suitable for SIMD, this option is incorrect.

266. Allows payments without the need to key in a PIN. The cards have a small chip that emits radio waves and only works within a few meters of the terminal. The transaction is much faster than other methods and also uses 128-bit encryption which makes it safe - a unique number is generated for each transaction.

Correct Answer: Correct answer is: (A) Contactless card readers.

Exam Relevance: GMAT, GRE, Banking Exams

Difficulty: Moderate

Concept notes: Contactless card readers enable quick and secure transactions without the need for a PIN.

Common Mistakes: Students may confuse contactless card readers with chip and PIN readers, which require a PIN for transactions.

Explanations: Contactless card readers use a small chip that emits radio waves, allowing transactions to occur within a few meters of the terminal. This method is faster than other payment methods and uses 128-bit encryption, generating a unique number for each transaction, ensuring security.

Option Analysis:

Option A: Correct. Contactless card readers use radio waves and do not require a PIN, making transactions quick and secure.
Option B: Incorrect. Magnetic stripe readers and chip and PIN readers require a PIN for transactions, which is not the case for contactless cards.
Option C: Incorrect. Speakers are unrelated to card transactions and do not facilitate payments.
Option D: Incorrect. 3D printers are used for creating physical objects and are not related to card transactions.

267. The first calculator that can perform all four arithmetic operations(Addition, Subtraction, Multiplication, Division) was known as.....

Correct Answer: Correct answer is: (B) Step Reckoner.

Exam Relevance: SAT, ACT, AP World History, AP Computer Science Principles

Difficulty: Easy

Concept notes: The Step Reckoner, invented by Gottfried Wilhelm Leibniz in the 17th century, was the first calculator capable of performing all four basic arithmetic operations.

Common Mistakes: Students may confuse the Step Reckoner with the Slide Rule, which is a different device used for multiplication, division, and other calculations but not all four basic operations.

Explanations: The Step Reckoner was a significant invention because it could perform addition, subtraction, multiplication, and division, making it the first device to handle all four arithmetic operations. This capability was a major advancement in the history of computing technology.

Option Analysis:

Option A: The Slide Rule is a mechanical analog computer used for multiplication, division, and other calculations but not all four basic operations.
Option B: The Step Reckoner, invented by Leibniz, was the first calculator to perform all four arithmetic operations.
Option C: This option is incorrect as the Step Reckoner is the correct answer.
Option D: This option is incorrect as the Step Reckoner is the correct answer.

268. Persons at a downtown cafe realized that they were able to access the internet on their laptop computers. The cafe could be considered as a?

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

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Easy

Concept notes: A hotspot is a location where people can access the internet, typically using Wi-Fi, often in public places like cafes.

Common Mistakes: Students may confuse a hotspot with a local area network (LAN), which is a network that connects computers within a limited area such as a residence, school, or office building.

Explanations: A hotspot is a specific type of wireless access point that allows users to connect to the internet using their devices. In the context of a cafe, the ability to access the internet on laptop computers indicates the presence of a wireless hotspot. This is different from a local area network (LAN), which is typically a private network within a building, or a metropolitan area network (MAN), which covers a larger geographical area. A satellite is not a network type but a device used for communication over long distances.

Option Analysis:

Option A: A Metropolitan Area Network (MAN) covers a larger geographical area than a cafe, typically connecting multiple LANs within a city or region.
Option B: A hotspot is a wireless access point that allows users to connect to the internet, fitting the scenario of a cafe where people can use their laptops to access the internet.
Option C: A Local Area Network (LAN) is a private network within a limited area, such as a building, and does not typically provide public internet access.
Option D: A satellite is a device used for communication over long distances and is not a type of network.

Mnemonic: Hotspot: Hot Spot, Hot Coffee, Hot Wi-Fi

269. First generation computers used

Correct Answer: Correct answer is: (C) Vacuum tube processors.

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

Difficulty: Easy

Concept notes: First generation computers used vacuum tubes as their primary electronic components.

Common Mistakes: Students may confuse vacuum tubes with transistors, which were used in second generation computers.

Explanations: First generation computers, developed in the 1940s and 1950s, utilized vacuum tubes for their electronic operations. These vacuum tubes were large, consumed a lot of power, and generated significant heat. They were the primary components used for processing and memory functions in these early computers.

Option Analysis:

Option A: Transistors were used in second generation computers, not first generation.
Option B: Microprocessors were used in fourth generation computers, not first generation.
Option C: Vacuum tube processors were the primary components in first generation computers.
Option D: Integrated circuits were used in third generation computers, not first generation.

Mnemonic: Vacuum tubes = First gen, think "vacuum" for "vacuuming up" the first generation.

270. Which does not typically require cooling technology?

Correct Answer: Correct answer is: (D) Hard Disk.

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

Difficulty: Easy

Concept notes: Hard disks do not typically require cooling technology because they generate less heat compared to other components like processors, power supplies, and cases.

Common Mistakes: Students may mistakenly think that all computer components require cooling technology, overlooking the fact that some components generate less heat and do not need additional cooling.

Explanations: Hard disks generate relatively low heat during operation and do not require additional cooling technology. In contrast, processors, power supplies, and cases often require cooling solutions to manage the heat generated by these components.

Option Analysis:

Option A: Processors generate significant heat and typically require cooling technology such as fans or liquid cooling systems.
Option B: Cases often include cooling solutions like fans to manage the heat generated by internal components.
Option C: Power supplies generate heat and usually require cooling fans to maintain optimal operating temperatures.
Option D: Hard disks generate minimal heat and do not typically require additional cooling technology.

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3 thoughts on “Information and Communication Technology MCQ - Set 27”

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 27”

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