Computer networking MCQ – Change your future

411. A ..... is a connected system of objects or people.

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

Exam Relevance: SAT, ACT, AP Computer Science Principles

Difficulty: Easy

Concept notes: A network is a system where multiple objects or people are connected and interact with each other.

Common Mistakes: Students may confuse a network with a node, which is a single point in a network, not the entire system.

Explanations: A network is defined as a connected system of objects or people. This term is commonly used in various contexts, such as computer networks, social networks, and transportation networks. The term "network" encompasses the idea of interconnectedness and interaction among multiple entities.

Option Analysis:

Option A: A node is a single point in a network, not the entire system.
Option B: Data transmission refers to the process of sending data from one point to another, not a connected system.
Option C: A network is a connected system of objects or people, which fits the definition provided in the question.
Option D: An operating system is a software that manages computer hardware and software resources, not a connected system of objects or people.

412. Which of the following is not an advantage of a LAN?

Correct Answer: Correct answer is: (C) Cheap setup cost.

Exam Relevance: Networking Fundamentals, Computer Science Exams, IT Certification Exams

Difficulty: Moderate

Concept notes: A LAN (Local Area Network) typically offers several advantages, including sharing hardware, data security, and sharing file storage. However, the setup cost for a LAN is not necessarily cheap, as it requires purchasing network equipment and possibly hiring IT professionals for installation and maintenance.

Common Mistakes: Students may mistakenly believe that setting up a LAN is inexpensive because they overlook the initial investment in hardware and professional services.

Explanations: A LAN provides benefits such as shared hardware resources, enhanced data security, and centralized file storage. However, the setup cost for a LAN is not typically considered cheap. The initial investment includes purchasing network equipment like switches, routers, and cables, as well as potential costs for professional installation and ongoing maintenance. Therefore, the advantage of a cheap setup cost does not apply to LANs.

Option Analysis:

Option A: Sharing hardware is a recognized advantage of a LAN, as it allows multiple users to access and use the same resources efficiently.
Option B: Data security is another advantage of a LAN, as it can be configured to protect data from unauthorized access and ensure secure communication within the network.
Option C: Cheap setup cost is not an advantage of a LAN, as the initial investment in hardware and professional services can be significant.
Option D: Sharing file storage is a benefit of a LAN, as it allows users to access and share files from a centralized location, improving collaboration and efficiency.

Mnemonic: LAN: Local Area Network, Not Cheap

413. A single computing device not connected to any other on a network, either wired or wireless.

Correct Answer: Correct answer is: (A) Stand Alone.

Exam Relevance: CompTIA A+, Network+, CCNA

Difficulty: Easy

Concept notes: A stand-alone computing device is one that operates independently without being connected to a network.

Common Mistakes: Students may confuse a stand-alone device with a networked device, such as those in a peer-to-peer or client-server network.

Explanations: A stand-alone device is not connected to any network, either wired or wireless. It operates independently and does not share resources or communicate with other devices. This makes it distinct from networked devices, which are part of a peer-to-peer, LAN, or client-server network.

Option Analysis:

Option A: Correct. A stand-alone device is not connected to any network.
Option B: Incorrect. A peer-to-peer network involves multiple devices connected and sharing resources.
Option C: Incorrect. A LAN (Local Area Network) connects multiple devices within a limited area.
Option D: Incorrect. A client-server network involves devices (clients) connecting to a central server.

414. A device which converts data to network packets is called a...

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

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

Difficulty: Easy

Concept notes: A Network Interface Card (NIC) is a hardware component that enables a device to connect to a network and transmit data in the form of network packets.

Common Mistakes: Students may confuse NIC with other acronyms like BIC, NAC, or MIC, which are not related to network interface functions.

Explanations: A Network Interface Card (NIC) is responsible for converting data into a format suitable for transmission over a network. It handles the conversion of data into network packets, which are then sent over the network. This function is critical for enabling communication between devices on a network.

Option Analysis:

Option A: NIC stands for Network Interface Card, which is the correct term for the device that converts data into network packets.
Option B: BIC is not a standard acronym in networking and does not refer to a device that converts data into network packets.
Option C: NAC is not a standard acronym for a device that converts data into network packets; it typically stands for Network Access Control.
Option D: MIC is not a standard acronym for a device that converts data into network packets; it typically stands for Microphone.

Mnemonic: NIC: Network Interface Card

415. How would a company connect LAN's in different locations

Correct Answer: Correct answer is: (D) Wide Area Network.

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Easy

Concept notes: A Wide Area Network (WAN) is a telecommunications network that extends over a large geographical distance. It is used to connect local area networks (LANs) in different locations.

Common Mistakes: Students may confuse WAN with LAN, thinking that LAN can connect different locations, which is incorrect as LAN is limited to a small geographical area.

Explanations: A Wide Area Network (WAN) is the correct choice because it is specifically designed to connect LANs across different geographical locations. This is in contrast to a Local Area Network (LAN), which is limited to a small area such as a single building or campus. The other options, "Wide Arc Network" and "World Area Network," are not standard networking terms.

Option Analysis:

Option A: Wide Area Connection is not a standard term in networking.
Option B: Wide Arc Network is not a standard term in networking.
Option C: World Area Network is not a standard term in networking.
Option D: Wide Area Network (WAN) is the correct term for connecting LANs in different locations.

Mnemonic: WAN: Wide Area Network

416. Which pair below are most alike

Correct Answer: Correct answer is: (D) Hub & Switch.

Difficulty: Moderate

Concept notes: Hubs and switches are both network devices that connect multiple devices within a local network. They operate at the data link layer (Layer 2) of the OSI model and are used to facilitate communication between devices on the same network.

Common Mistakes: Students may confuse the functions of a hub and a switch, thinking that they are significantly different. However, both devices are used to connect devices on a local network, with the primary difference being that switches are more intelligent and can direct traffic more efficiently.

Explanations: Hubs and switches are most alike because they both operate at the data link layer and are used to connect multiple devices within a local network. While a hub broadcasts data to all connected devices, a switch can direct data to the specific device it is intended for, making it more efficient. However, their fundamental role in connecting devices on a local network remains the same.

Option Analysis:

Option A: A router and a modem are not alike. A router connects multiple networks and operates at the network layer (Layer 3), while a modem connects a local network to the internet and operates at the physical layer (Layer 1).
Option B: A switch and a modem are not alike. A switch operates at the data link layer (Layer 2) and connects devices within a local network, while a modem operates at the physical layer (Layer 1) and connects a local network to the internet.
Option C: A router and a hub are not alike. A router operates at the network layer (Layer 3) and connects multiple networks, while a hub operates at the data link layer (Layer 2) and connects devices within a local network.
Option D: A hub and a switch are alike because they both operate at the data link layer (Layer 2) and are used to connect multiple devices within a local network.

Mnemonic: Hub and Switch, Link Layer Connective

417. Thomas Mills High School has computers being used in a number of school buildings within the site. Which network is being used?

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

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

Difficulty: Easy

Concept notes: A Local Area Network (LAN) is a computer network that connects computers and devices within a limited geographical area, such as a school, office, or home.

Common Mistakes: Students may confuse LAN with WAN, thinking that a network spanning multiple buildings would require a WAN.

Explanations: Thomas Mills High School has computers being used in a number of school buildings within the site. This scenario describes a Local Area Network (LAN) because the network is confined to a single geographical location, which is the school site. A Wide Area Network (WAN) would be used for connecting computers over a larger geographical area, such as different cities or countries.

Option Analysis:

Option A: Correct. LAN is appropriate for connecting computers within a school site.
Option B: Incorrect. WAN is used for connecting computers over a larger geographical area, not within a single site.

Mnemonic: LAN - Local Area Network, think "Local" for "Limited" area.

418. What is a Client server Network?

Correct Answer: Correct answer is: (B) A structure where tasks are partitioned between providers of a resources and service requesters, called clients.

Exam Relevance: CISSP, CompTIA Network+, CCNA

Difficulty: Moderate

Concept notes: A client-server network is a model where tasks and responsibilities are divided between client and server components.

Common Mistakes: Students may confuse the client-server model with peer-to-peer networks, where all computers have equal roles.

Explanations: In a client-server network, the server provides resources and services, while clients request and use these resources. This division of labor allows for efficient resource management and centralized control over network resources.

Option Analysis:

Option A: This option is too vague and does not capture the essence of task partitioning between clients and servers.
Option B: This option correctly describes the client-server model, where tasks are divided between resource providers (servers) and service requesters (clients).
Option C: This option is too narrow and only describes one aspect of client-server networks, without addressing the partitioning of tasks.

419. Wireless distribution method for two or more devices that use high-frequency radio waves and often include an access point to the Internet.

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

Exam Relevance: CCNA, CompTIA Network+, CIW

Difficulty: Easy

Concept notes: WLAN stands for Wireless Local Area Network, which uses high-frequency radio waves to connect devices and often includes an access point to the Internet.

Common Mistakes: Students may confuse WLAN with other network types like LAN (Local Area Network) or WAN (Wide Area Network), which do not necessarily involve wireless technology.

Explanations: WLAN is the correct answer because it specifically refers to a network that uses high-frequency radio waves to connect devices and often includes an access point to the Internet. This matches the description given in the question.

Option Analysis:

Option A: VLAN (Virtual Local Area Network) is a method of creating virtual networks within a physical network, not a wireless distribution method.
Option B: WLAN (Wireless Local Area Network) is the correct answer as it uses high-frequency radio waves and often includes an access point to the Internet.
Option C: WAN (Wide Area Network) is a network that spans a large geographical area, not specifically a wireless distribution method.
Option D: LAN (Local Area Network) is a network that connects devices in a limited area, typically without wireless technology.

Mnemonic: WLAN: Wireless Local Area Network

420. Computer devices attached to a network are called .....

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

Exam Relevance: CCNA, CompTIA Network+, A+ Certification

Difficulty: Easy

Concept notes: In a network, devices that are connected and can communicate with each other are referred to as nodes.

Common Mistakes: Students may confuse nodes with other network components like hubs or servers, which are specific types of nodes but not the general term for all connected devices.

Explanations: Nodes are the fundamental components of a network, representing any device that can send, receive, or forward information. This includes computers, printers, routers, and other devices. The term "nodes" is the most accurate and general term for all such devices in a network.

Option Analysis:

Option A: Correct. Nodes are the correct term for devices connected to a network.
Option B: Incorrect. A hub is a specific type of network device that connects multiple devices together, but it is not the general term for all connected devices.
Option C: Incorrect. A server is a specific type of node that provides services to other nodes, but it is not the general term for all connected devices.
Option D: Incorrect. Data refers to the information transmitted over the network, not the devices themselves.

Mnemonic: N for Nodes, Network's Nucleus.

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Computer networking MCQ - Set 42

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