Computer networking MCQ – Change your future

571. Which one is the purpose of a network?

Correct Answer: Correct answer is: (C) To easily share documents.

Exam Relevance: AP Computer Science Principles, SAT Subject Test in Computer Science

Difficulty: Easy

Concept notes: Networks are designed to facilitate communication and resource sharing among multiple devices.

Common Mistakes: Students may confuse the purpose of a network with its potential risks, such as the spread of viruses.

Explanations: A network allows multiple devices to connect and share resources, including documents, files, and printers. This makes it easier for users to collaborate and access shared information.

Option Analysis:

Option A: Sharing viruses is a potential risk, not a purpose of a network.
Option B: Losing data is not a purpose of a network; it is a potential risk.
Option C: Sharing documents is a primary purpose of a network, enabling collaboration and resource sharing.
Option D: Installing cables is a part of network setup, not the purpose of a network.

572. Which one of these best describes a mesh topology?

Correct Answer: Correct answer is: (B) All devices are connect toeach other.

Exam Relevance: CCNA, Network+ Certification, High School Computer Science Exams

Difficulty: Easy

Concept notes: In a mesh topology, each device is directly connected to every other device in the network.

Common Mistakes: Students may confuse mesh topology with star topology, where all devices connect to a central switch.

Explanations: A mesh topology ensures that each device is directly connected to every other device, providing multiple paths for data transmission. This redundancy enhances reliability and fault tolerance.

Option Analysis:

Option A: This describes a star topology, not a mesh topology.
Option B: This correctly describes a mesh topology where each device is connected to every other device.
Option C: This describes a scenario where devices are connected to a central printer, which is not a network topology.

Mnemonic: Mesh = Many connections, each to each.

573. What is TCP used for?

Correct Answer: Correct answer is: (A) To send information across the internet in packets.

Exam Relevance: CCNA, CISSP, CompTIA Network+

Difficulty: Moderate

Concept notes: TCP (Transmission Control Protocol) is a fundamental protocol used in the internet for reliable data transmission.

Common Mistakes: Students often confuse TCP with other protocols like IP (Internet Protocol) or UDP (User Datagram Protocol), which have different functions.

Explanations: TCP is responsible for breaking down data into packets, ensuring reliable transmission, and reassembling the packets at the destination. It ensures that data is sent in a reliable and ordered manner, making it suitable for applications that require error-free data transmission.

Option Analysis:

Option A: Correct. TCP is used to send information across the internet in packets, ensuring reliability and order.
Option B: Incorrect. Ensuring information is sent to the correct computer is the responsibility of IP, not TCP.
Option C: Incorrect. Sending mail across the internet is typically handled by protocols like SMTP, not TCP.
Option D: Incorrect. Transmitting webpages across the internet is facilitated by HTTP or HTTPS, which run over TCP, but TCP itself is not specifically for webpages.

Mnemonic: TCP: Transmit, Check, Packets

574. A router also connects to the Internet outside the home using most likely a

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

Exam Relevance: CCNA, CompTIA Network+, CIW Network Specialist

Difficulty: Easy

Concept notes: A modem is a device that connects a local network to the Internet by converting digital signals to analog signals and vice versa.

Common Mistakes: Students may confuse a modem with a router, as both are used for network connectivity. However, a modem specifically connects to the Internet service provider, while a router connects devices within a local network.

Explanations: A router connects to the Internet outside the home using a modem. The modem is responsible for converting the digital signals from the router into analog signals that can be transmitted over the Internet service provider's network. This conversion is necessary because the Internet service provider's network typically uses analog signals, while the router uses digital signals.

Option Analysis:

Option A: A cable is a physical medium for transmitting data, not a device for connecting to the Internet.
Option B: A switch is used to connect devices within a local network, not to connect to the Internet.
Option C: A router connects devices within a local network and routes traffic to the Internet, but it does not directly connect to the Internet service provider.
Option D: A modem is the correct device for connecting to the Internet service provider, as it converts digital signals to analog signals for transmission over the Internet.

Mnemonic: Modem: Modulate-Demodulate

575. Computer network that connects computers within a limited area such as a home, school, computer laboratory, or office building, using network media

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

Exam Relevance: IT Essentials, CompTIA A+, Network+ Certification

Difficulty: Easy

Concept notes: LAN stands for Local Area Network, which connects computers within a limited area such as a home, school, computer laboratory, or office building.

Common Mistakes: Students may confuse LAN with WAN (Wide Area Network) or MAN (Metropolitan Area Network), which cover larger geographical areas.

Explanations: LAN is the correct answer because it specifically refers to a network that connects computers within a limited area, such as a home, school, computer laboratory, or office building. This network uses network media to facilitate communication and resource sharing among devices within the same location.

Option Analysis:

Option A: MAN (Metropolitan Area Network) covers a larger geographical area, typically a city or town, and is not limited to a single building or small area.
Option B: WAN (Wide Area Network) covers a very large geographical area, such as multiple cities or countries, and is not limited to a single building or small area.
Option C: LAN (Local Area Network) is the correct answer as it connects computers within a limited area, such as a home, school, computer laboratory, or office building.

Mnemonic: LAN: Local Area Network

576. A benefit of a network if that you are able to conduct online training and collaborate with your peers online at any given time.

Correct Answer: Correct answer is: A) True.

Exam Relevance: AP Computer Science Principles, SAT Subject Test in Computer Science

Difficulty: Easy

Concept notes: Networks enable online collaboration and training, allowing users to interact and learn remotely.

Common Mistakes: Students might think that online training and collaboration are only possible with specific software, not understanding the broader capabilities of networked systems.

Explanations: Networks provide the infrastructure for online training and collaboration, enabling users to connect, share resources, and communicate in real-time. This capability allows for remote learning and teamwork, which can occur at any time, making the statement true.

Option Analysis:

Option A: Correct, as networks support online training and collaboration.
Option B: Incorrect, as the statement accurately describes a benefit of networks.

577. Give an example of a multimedia application

Correct Answer: Correct answer is: (B) Music Player.

Exam Relevance: AP Computer Science Principles, IB Computer Science, SAT Subject Test in Computer Science

Difficulty: Easy

Concept notes: A multimedia application is a software program that can handle multiple forms of media, such as audio, video, images, and text. A music player is an example of a multimedia application as it can play audio files and often includes features like visual album art and lyrics.

Common Mistakes: Students might confuse multimedia applications with network topologies, such as a bus network, which is unrelated to multimedia functionality.

Explanations: A music player is a multimedia application because it processes and plays audio files, which is a form of media. It often includes additional features like displaying album art and lyrics, further demonstrating its multimedia capabilities.

Option Analysis:

Option A: A bus network is a type of network topology and not a multimedia application. It is used to connect devices in a network and does not process or play media files.
Option B: A music player is a multimedia application as it can play audio files and often includes features like visual album art and lyrics, making it a valid example of multimedia functionality.

578. A collection of hyperlinked documents on the internet forms?

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

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Easy

Concept notes: The World Wide Web (WWW) is a collection of hyperlinked documents accessible via the internet.

Common Mistakes: Students may confuse the World Wide Web with email or HTML, which are related but distinct concepts.

Explanations: The World Wide Web (WWW) is a system of interlinked hypertext documents accessed via the internet. It allows users to navigate from one document to another through hyperlinks. This makes the WWW the correct answer as it directly describes a collection of hyperlinked documents on the internet.

Option Analysis:

Option A: Correct. The World Wide Web (WWW) is a collection of hyperlinked documents on the internet.
Option B: Incorrect. E-mail is a method of sending messages over the internet, not a collection of hyperlinked documents.
Option C: Incorrect. A mailing list is a distribution list for sending emails to multiple recipients, not a collection of hyperlinked documents.
Option D: Incorrect. HTML is a markup language used to create web pages, not a collection of hyperlinked documents.

579. Put true or false,The Computer icon is used to access the shared folders in Windows Operating System

Correct Answer: Correct answer is: B) False.

Exam Relevance: Microsoft Certification Exams, IT Essentials, CompTIA A+

Difficulty: Easy

Concept notes: The Computer icon in Windows is used to access and manage local and networked drives, but not specifically for accessing shared folders.

Common Mistakes: Students may confuse the Computer icon with the Network icon or the Shared Folders section within the Computer icon, which can lead to incorrect assumptions.

Explanations: The Computer icon in Windows provides access to local drives and networked drives. Shared folders are typically accessed through the Network icon or by navigating to the specific drive or folder that contains the shared resources. Therefore, the Computer icon itself is not specifically used to access shared folders.

Option Analysis:

Option A: Incorrect because the Computer icon is not specifically used to access shared folders.
Option B: Correct because the Computer icon is not specifically used to access shared folders.

580. What is a communication media?

Correct Answer: Correct answer is: (C) Physical connection between devices.

Exam Relevance: CCNA, CompTIA Network+, CIW Network Specialist

Difficulty: Easy

Concept notes: Communication media refers to the physical means by which data is transmitted between devices in a network.

Common Mistakes: Students may confuse communication media with other network components such as servers or client devices.

Explanations: Communication media are the physical pathways that enable data transmission between devices. This includes cables, fiber optics, and wireless signals. The other options describe different components of a network, not the physical connections.

Option Analysis:

Option A: This describes a server, not communication media.
Option B: This describes a client device, not communication media.
Option C: This correctly identifies communication media as the physical connections between devices.
Option D: This describes a circuit board, not communication media.

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Computer networking MCQ - Set 58

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