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Computer Networks Quiz 52 (10 MCQs)

This set of multiple-choice questions evaluates understanding of data transfer rates, network capacity, and bandwidth measurement. It covers network devices, host definitions, server roles, and network fundamentals, including communication protocols and inter-device communication. The questions also explore network types, resource sharing, and data transmission rules.

Quiz Instructions

Select an option to see the correct answer instantly.

1. A combination of hardware and software that allows communication and electronic transfer of information between computers is a .....

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

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Easy

Concept notes: A network is a combination of hardware and software that allows communication and electronic transfer of information between computers.

Common Mistakes: A common misunderstanding is that a peripheral device, such as a printer or monitor, can perform the same function as a network. However, peripherals are individual devices that connect to a single computer, not a system that connects multiple computers.

Explanations: A network is defined as a system that connects multiple computers and devices, enabling them to communicate and share resources. This definition aligns with the description provided in the question, which mentions the combination of hardware and software for communication and data transfer between computers.

Option Analysis:

Option A: Correct. A network is the correct term for a system that allows communication and electronic transfer of information between computers.
Option B: Incorrect. A peripheral is a device that connects to a single computer, such as a printer or monitor, and does not facilitate communication between multiple computers.
Option C: Incorrect. The correct answer is provided by option A.
Option D: Incorrect. The correct answer is not all of the above, as only option A is correct.

2. The server on the internet is also known as:

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

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Easy

Concept notes: In computer networks, a server on the internet is often referred to as a host. A host is any device connected to a network and capable of sending, receiving, or forwarding information over a communication channel.

Common Mistakes: A common misunderstanding is that a server is only a specialized device, but in network terminology, a server is a type of host that provides services to other hosts on the network.

Explanations: A server on the internet is a host because it is a device connected to the network that provides services to other devices. The term "host" encompasses any device that can communicate over a network, including servers, clients, and other networked devices.

Option Analysis:

Option A: A repeater is a device that regenerates and retransmits signals, but it is not a server or a host in the context of providing services.
Option B: A host is a device connected to a network, which includes servers on the internet.
Option C: A gateway is a device that connects two different networks, but it is not specifically a server or a host in the context of providing services.
Option D: An AND gate is a digital logic gate and not related to network terminology.

3. WAN stands for:

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

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Very Easy

Concept notes: WAN stands for Wide Area Network, which is a telecommunications network that extends over a large geographical distance.

Common Mistakes: A common mistake is confusing WAN with LAN (Local Area Network) or MAN (Metropolitan Area Network).

Explanations: WAN is an acronym for Wide Area Network, which is a network that covers a broad area, such as a city, country, or even globally. It connects various smaller networks, such as LANs and MANs, to form a larger network.

Option Analysis:

Option A: Wide Array Net is not a standard term in computer networking.
Option B: Wide Area Network is the correct term for WAN.
Option C: Wap Area Network is not a standard term in computer networking.
Option D: None of the above is incorrect since Wide Area Network is the correct term.

Mnemonic: WAN: Wide Area Network

4. Sending a message, whether by face-to-face communication or over a network, is governed by rules called .....

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

Exam Relevance: CCNA, CISSP, CompTIA Network+

Difficulty: Easy

Concept notes: Protocols are a set of rules that govern how data is transmitted and received over a network.

Common Mistakes: A common misunderstanding is that regulations or guidelines might be the correct answer, but these terms are more general and do not specifically refer to the rules governing data transmission.

Explanations: In computer networks, protocols define the rules and standards for communication between devices. These rules ensure that data is transmitted and received correctly, regardless of the type of device or network. Protocols are essential for ensuring that messages are sent and received in a consistent and reliable manner.

Option Analysis:

Option A: Protocols are the correct answer as they define the rules for communication in computer networks.
Option B: Regulations are broader rules set by governing bodies and do not specifically refer to network communication rules.
Option C: Guidelines are general recommendations and do not have the specific structure and enforcement of protocols.
Option D: This option is incorrect as protocols are the correct term for the rules governing network communication.

5. The word bandwidth is also used to mean .....?

Correct Answer: Correct answer is: (B) Amount of data transferred.

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Easy

Concept notes: In the context of computer networks, bandwidth refers to the maximum rate of data transfer across a given path. It is often measured in bits per second (bps) or multiples thereof, such as kilobits per second (kbps), megabits per second (Mbps), or gigabits per second (Gbps).

Common Mistakes: A common misunderstanding is that bandwidth refers to the physical width of a data cable. However, bandwidth is a measure of data transfer rate, not a physical dimension.

Explanations: Bandwidth in computer networks is defined as the amount of data that can be transferred over a network in a given period of time. This is a critical concept in network performance and capacity planning. The term "bandwidth" is often used interchangeably with data transfer rate, which is the correct interpretation in this context.

Option Analysis:

Option A: This is incorrect because bandwidth does not refer to the physical width of a data cable.
Option B: This is correct because bandwidth refers to the amount of data that can be transferred over a network in a given period of time.
Option C: This is incorrect because the number of computers on a network is not related to the definition of bandwidth.
Option D: This is incorrect because the correct answer is provided in option B.

6. I am the fastest type of transmission media used in a wired network-what am I?

Correct Answer: Correct answer is: (D) Fibre optic cable.

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

Difficulty: Easy

Concept notes: Fibre optic cables are the fastest type of transmission media used in wired networks due to their ability to transmit data using light, which allows for higher bandwidth and faster data transfer rates compared to other types of cables.

Common Mistakes: A common misunderstanding is that twisted pair or Cat/ethernet cables are the fastest, but they are slower due to their use of electrical signals rather than light.

Explanations: Fibre optic cables transmit data using light, which travels at a very high speed. This makes them the fastest transmission media for wired networks. Other types of cables, such as twisted pair and Cat/ethernet cables, use electrical signals, which are slower and have lower bandwidth capabilities.

Option Analysis:

Option A: Twisted pair cables use electrical signals and are slower than fibre optic cables.
Option B: Cat or ethernet cables are also based on electrical signals and are not as fast as fibre optic cables.
Option C: Twin and earth cable is not a standard term in networking and does not refer to a high-speed transmission medium.
Option D: Fibre optic cable uses light for data transmission, making it the fastest type of transmission media.

7. Function as a server or as a client at the same time.

Correct Answer: Correct answer is: (B) Peer-to-peer networks.

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

Difficulty: Moderate

Concept notes: Peer-to-peer networks allow devices to function both as servers and clients simultaneously, sharing resources and data directly with each other without the need for a central server.

Common Mistakes: A common misunderstanding is that client/server networks also allow devices to function as both servers and clients simultaneously. However, in client/server networks, there is a clear distinction between the server, which provides services, and the clients, which request services.

Explanations: Peer-to-peer networks enable devices to act as both servers and clients at the same time. This means that any device in the network can share resources and data directly with other devices, without the need for a central server. This characteristic distinguishes peer-to-peer networks from client/server networks, where devices are strictly categorized as either servers or clients.

Option Analysis:

Option A: Client/server networks have a central server that provides services to clients, and clients cannot function as servers.
Option B: Peer-to-peer networks allow devices to function as both servers and clients simultaneously, sharing resources directly.
Option C: Ring networks are a type of network topology where devices are connected in a circular configuration, but they do not inherently support dual functionality as servers and clients.
Option D: Bus networks are a type of network topology where devices are connected to a single communication line, but they do not inherently support dual functionality as servers and clients.

Mnemonic: P2P: Peer-to-Peer, Power to Participate

8. To indicate that there is a network?

Correct Answer: Correct answer is: (C) There must not only be interconnection between 2 or more devices but also ensure that they understand each other.

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Moderate

Concept notes: In computer networks, interconnection alone is not sufficient to establish a functional network. Devices must also be able to communicate effectively, which requires a common language or protocol.

Common Mistakes: A common misunderstanding is that simply connecting devices is enough to form a network, without considering the need for communication protocols.

Explanations: A network is defined not just by the physical interconnection of devices, but also by their ability to communicate and exchange data. This requires a shared understanding of protocols and standards, ensuring that devices can interpret and respond to each other's messages correctly.

Option Analysis:

Option A: Incorrect. Two devices being connected does not guarantee a functional network without a common communication protocol.
Option B: Incorrect. While more than two devices can be interconnected, this alone does not ensure a functional network without communication protocols.
Option C: Correct. Interconnection and mutual understanding through protocols are both necessary for a functional network.
Option D: Incorrect. Networks are complex and require specific protocols for effective communication, not a universal format.

9. What unit do we measure bandwidth with?

Correct Answer: Correct answer is: (A) Bits of data per second.

Exam Relevance: CCNA, CompTIA Network+, CISSP

Difficulty: Easy

Concept notes: Bandwidth in computer networks is typically measured in bits per second (bps). This unit quantifies the amount of data that can be transmitted over a network in a given time.

Common Mistakes: A common misunderstanding is that bandwidth is measured in milliseconds, which is a unit of time, not data transmission rate.

Explanations: Bandwidth is defined as the maximum rate of data transfer across a given path. It is measured in bits per second (bps) because it indicates the amount of data that can be transmitted in one second. This unit is standard in computer networks to quantify the capacity of a network link.

Option Analysis:

Option A: Correct. Bits of data per second is the standard unit for measuring bandwidth in computer networks.
Option B: Incorrect. Milliseconds are a unit of time, not a unit for measuring data transfer rate.
Option C: Incorrect. While bits of data per millisecond could be a valid unit, it is not the standard unit used in computer networks. The standard unit is bits per second.
Option D: Incorrect. Bits of data alone do not provide a rate of transfer, which is essential for measuring bandwidth.

10. The rules that govern the transmission of messages, whether through face-to-face communication or networked systems, are known as .....

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

Exam Relevance: CCNA, CISSP, CompTIA Network+

Difficulty: Moderate

Concept notes: Protocols are the rules and standards that govern the transmission of data over a network. They define how data is formatted, addressed, transmitted, and received.

Common Mistakes: A common misunderstanding is confusing protocols with standards. While standards are broader guidelines, protocols are specific rules that must be followed for communication to occur.

Explanations: In computer networks, protocols are essential for ensuring that data is transmitted correctly and efficiently. They define the format and rules for communication between different devices and systems. Regulations and guidelines are broader and more general, while standards are agreed-upon specifications, but they do not specifically govern the transmission process like protocols do.

Option Analysis:

Option A: Regulations are broader rules set by authorities and do not specifically govern data transmission protocols.
Option B: Guidelines are general recommendations and do not enforce specific rules for data transmission.
Option C: Protocols are the specific rules that govern the transmission of data over a network.
Option D: Standards are agreed-upon specifications but do not specifically govern the transmission process like protocols do.

Frequently Asked Questions

What is a Wide Area Network (WAN)?

A Wide Area Network (WAN) is a telecommunications network that extends over a large geographical area, connecting multiple local area networks (LANs) and devices.

How is network bandwidth measured?

Network bandwidth is typically measured in bits per second (bps), indicating the maximum data transfer rate that a network can handle.

What is the difference between client/server and peer-to-peer networks?

In a client/server network, devices (clients) request services from a central server, while in a peer-to-peer network, all devices share resources and responsibilities equally.

What are network protocols?

Network protocols are a set of rules and standards that govern how data is transmitted and received over a network, ensuring effective communication between devices.

What is the role of a network host?

A network host is a device connected to a network that can send, receive, or forward information over the network, such as a computer or server.

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