Information and Communication Technology MCQ

41. Emily has just sent a file to another computer on her home network. She then discovers that every computer on her home network received the file. Which network device is Emily using to connect her home computers?

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

Exam Relevance: AP Computer Science Principles, CompTIA Network+, CCNA

Difficulty: Easy

Concept notes: A hub is a network device that connects multiple devices on a network and forwards data to all connected devices.

Common Mistakes: Students may confuse a hub with a switch, which only forwards data to the intended recipient, not all devices.

Explanations: A hub broadcasts data to all connected devices, which explains why every computer on Emily's home network received the file. This behavior is characteristic of a hub, not a modem, router, or switch.

Option Analysis:

Option A: A modem is used to connect to the internet, not to distribute files within a local network.
Option B: A hub broadcasts data to all connected devices, which matches the scenario described.
Option C: A router directs data to specific devices based on IP addresses, not to all devices.
Option D: A switch forwards data only to the intended recipient, not to all devices.

Mnemonic: Hub = Hail to all, Broadcast to all

42. A billionth of a second is defined as a:

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

Exam Relevance: SAT, ACT, AP Physics

Difficulty: Easy

Concept notes: A nanosecond is a unit of time equal to one billionth of a second.

Common Mistakes: Students may confuse the prefixes milli-, micro-, and nano-, leading to incorrect selection of options.

Explanations: A nanosecond is defined as one billionth of a second. This is the correct unit of time for the given definition.

Option Analysis:

Option A: A millisecond is one thousandth of a second, which is much larger than a billionth of a second.
Option B: A microsecond is one millionth of a second, which is still larger than a billionth of a second.
Option C: A nanosecond is one billionth of a second, which matches the given definition.
Option D: A picosecond is one trillionth of a second, which is smaller than a billionth of a second.

Mnemonic: Nano = Nano-second, Nano-second = Billionth

43. When all the numbers between 0 and 100 in a range should be displayed in Red Color, apply

Correct Answer: Correct answer is: (B) Apply Conditional Formatting command on Format menu.

Exam Relevance: Microsoft Excel Certification, Data Analyst Exams, Spreadsheet Competency Tests

Difficulty: Easy

Concept notes: Conditional formatting allows users to apply formatting to cells based on specific criteria.

Common Mistakes: Students may mistakenly think that manually selecting and coloring cells or using the IF function is the most efficient method.

Explanations: Conditional formatting is the most efficient method to apply formatting to a range of cells based on a condition. In this case, the condition is that the numbers should be between 0 and 100. By using the Conditional Formatting command, the formatting will automatically apply to all cells that meet the criteria, without the need for manual selection or the use of functions like IF.

Option Analysis:

Option A: The IF function is used for logical tests and returns values based on the test result, not for formatting cells.
Option B: Conditional formatting is the correct method to apply formatting based on a condition to a range of cells.
Option C: Manually selecting and coloring cells is time-consuming and does not automatically apply to all cells that meet the criteria.
Option D: Not all options are correct; only conditional formatting is the appropriate method.

44. Personal computers can be connected together to form a

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

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Easy

Concept notes: Personal computers can be connected together to form a network, which allows them to share resources and communicate with each other.

Common Mistakes: Students might confuse a network with a server, which is a computer system that provides services to other computers on the network.

Explanations: Personal computers can be connected together to form a network. A network allows multiple computers to share resources, such as printers, files, and internet access, and to communicate with each other. This is the correct answer because it directly addresses the capability of connecting multiple personal computers to create a shared system.

Option Analysis:

Option A: A server is a computer system that provides services to other computers on a network, not a network itself.
Option B: A supercomputer is a highly powerful computer used for complex calculations, not a network of personal computers.
Option C: A network is a system of interconnected computers that can share resources and communicate with each other.
Option D: An enterprise refers to a large business organization, not a network of personal computers.

45. Modern Computer are very reliable but they are not.....?

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

Exam Relevance: SAT, ACT, AP Computer Science

Difficulty: Easy

Concept notes: Modern computers are highly reliable but they are not infallible, meaning they can still make errors or fail under certain conditions.

Common Mistakes: Students might mistakenly believe that modern computers are perfect and never make errors.

Explanations: Modern computers are designed to be highly reliable, but they are not infallible. This means that while they perform tasks with a high degree of accuracy, they can still encounter errors or fail under certain conditions. These failures can be due to hardware malfunctions, software bugs, or other unforeseen circumstances. Therefore, the correct answer is that modern computers are not infallible.

Option Analysis:

Option A: Modern computers are generally fast, so this is not the correct answer.
Option B: Modern computers are powerful, so this is not the correct answer.
Option C: Modern computers are not infallible, making this the correct answer.
Option D: Modern computers can be expensive, so this is not the correct answer.

46. What type of access control model is based on an individual's roles and responsibilities within the organization?

Correct Answer: Correct answer is: (B) Non-discretionary access control.

Exam Relevance: CISSP, CompTIA Security+, CISA

Difficulty: Moderate

Concept notes: Non-discretionary access control (NDAC) is a type of access control model where access rights are determined by the system administrator and are based on the roles and responsibilities of users within the organization.

Common Mistakes: Students may confuse non-discretionary access control with mandatory access control, which is based on security labels and classifications rather than roles.

Explanations: Non-discretionary access control (NDAC) is the correct answer because it is based on the roles and responsibilities of users within the organization. In NDAC, the system administrator defines access rights based on the user's role, ensuring that access is granted according to the user's position and duties within the organization.

Option Analysis:

Option A: Access control list (ACL) is a list of permissions attached to an object, which specifies who or what is allowed to access the object and what operations are allowed. It does not specifically focus on roles and responsibilities.
Option B: Non-discretionary access control (NDAC) is based on roles and responsibilities, making it the correct answer.
Option C: Mandatory access control (MAC) is based on security labels and classifications, not roles and responsibilities.
Option D: Discretionary access control (DAC) allows the owner of resources to grant or revoke access to those resources, which is not based on roles and responsibilities.

47. Which term refers to application software that is stored on servers and runs on an Internet Browser?

Correct Answer: Correct answer is: (B) Cloud computing.

Exam Relevance: CISSP, CompTIA Cloud+, AWS Certified Solutions Architect

Difficulty: Moderate

Concept notes: Cloud computing refers to the delivery of computing services over the Internet, including software applications that can be accessed through web browsers.

Common Mistakes: Students may confuse cloud computing with other web-based technologies, such as crowdsourcing, which involves gathering information or input from a large group of people.

Explanations: Cloud computing involves storing and accessing data and programs over the Internet instead of on local hard drives or servers. This allows users to access application software through web browsers, making it the correct term for the described scenario.

Option Analysis:

Option A: Crowdsourcing is the practice of obtaining information or input from a large group of people, often via the Internet, and is not related to application software delivery.
Option B: Cloud computing is the correct term for application software that is stored on servers and accessed via an Internet browser.
Option C: An e-mail client is a software application used to send and receive e-mail, and does not describe the broader concept of cloud-based applications.
Option D: File management refers to the organization and handling of files on a computer system, and does not pertain to cloud-based applications.

Mnemonic: Clouds float, so software floats in the cloud.

48. What do we call a CPU that is designed specifically to handle the communications processing task with main purpose is to off-load communications processing task from the host computer so that the host computer can be dedicated for applications and data processing jobs?

Correct Answer: Correct answer is: (B) Front-end processor.

Exam Relevance: CompTIA Network+, CISSP, CCNA

Difficulty: Easy

Concept notes: A front-end processor is a specialized CPU designed to handle communication tasks, thereby offloading these tasks from the main host computer.

Common Mistakes: Students may confuse a front-end processor with a backend processor, which typically handles tasks related to data storage and retrieval rather than communication.

Explanations: A front-end processor is specifically designed to manage communication tasks, such as handling data transmission and network protocols. By offloading these tasks from the host computer, the host can focus on application and data processing, improving overall system efficiency.

Option Analysis:

Option A: A backend processor typically handles tasks related to data storage and retrieval, not communication processing.
Option B: A front-end processor is designed to handle communication processing tasks, offloading these tasks from the host computer.
Option C: A node processor is a general term for a processor in a network, not specifically for communication processing.
Option D: A file server is a computer that provides a location for shared disk storage, not a specialized processor for communication tasks.

Mnemonic: FEP for Front-End Processor

49. What keyword identifies a group of statements and data that work together as a unit?

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

Exam Relevance: Java, C++, Python, Object-Oriented Programming Exams

Difficulty: Easy

Concept notes: In object-oriented programming, a class is a blueprint for creating objects. It encapsulates data and methods that work together as a unit.

Common Mistakes: Students may confuse the term "class" with "package," which is a namespace for organizing classes and interfaces.

Explanations: A class in object-oriented programming is a template that defines the properties and behaviors of objects. It groups related data (attributes) and methods (functions) into a single unit, making it the correct answer. Other options like "Main," "Static," and "Package" do not encapsulate a group of statements and data in the same way a class does.

Option Analysis:

Option A: Correct. A class is a blueprint that defines a group of related data and methods.
Option B: Incorrect. "Main" is a method name typically used as the entry point of a program, not a grouping mechanism.
Option C: Incorrect. "Static" is a keyword that can be applied to methods or variables, but it does not define a group of statements and data.
Option D: Incorrect. "Package" is a namespace for organizing classes and interfaces, but it does not encapsulate a group of statements and data in the same way a class does.

50. The main circuit board that holds and connects main parts of the computer

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

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

Difficulty: Easy

Concept notes: The motherboard is the main circuit board in a computer that connects and holds the main components.

Common Mistakes: Students may confuse the motherboard with the CPU, which is a component on the motherboard rather than the board itself.

Explanations: The motherboard is the central printed circuit board in a computer that connects and holds the main components such as the CPU, RAM, and other peripherals. It provides the necessary pathways for data and power to flow between these components. Therefore, it is the correct answer as it is the main circuit board that holds and connects the main parts of the computer.

Option Analysis:

Option A: The CPU (Central Processing Unit) is a component on the motherboard, not the main circuit board itself.
Option B: RAM (Random Access Memory) is another component that is connected to the motherboard, but it is not the main circuit board.
Option C: Ethernet is a networking technology and not a component of the motherboard.
Option D: The motherboard is the correct answer as it is the main circuit board that holds and connects the main parts of the computer.

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3 thoughts on “Information and Communication Technology MCQ - Set 5”

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 5”

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