Full Duplex Mode Example: Half Duplex vs Full Duplex Ethernet Quiz

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Questions and Answers

In which type of communication can data flow in both directions, but not simultaneously?

Half-duplex communication

What type of communication allows data to flow in only one direction at a time?

Simplex communication

What mode of communication enables data to flow in both directions simultaneously?

Full-duplex communication

What type of network is designed to cover a large geographical area like a city or town?

MAN (Metropolitan Area Network) Signup and view all the answers

Which model defines how applications interact over a network?

OSI Model Signup and view all the answers

What type of network is limited to a small area, like a single building or a campus?

LAN (Local Area Network) Signup and view all the answers

What are the disadvantages of a scalable network?

Decreased speed of connection, increased chances of error occurring Signup and view all the answers

How can the problem of decreased speed and transmission errors in a scalable network be overcome?

By using routing or switching devices Signup and view all the answers

What is the main feature of a Peer-To-Peer network?

Equal privilege and responsibilities for all computers Signup and view all the answers

Why is Peer-To-Peer network useful for small environments?

Because it is cost-effective and suits environments with up to 10 computers Signup and view all the answers

What is the main disadvantage of a Peer-To-Peer network?

No dedicated server Signup and view all the answers

What potential issue can arise in a Peer-To-Peer network if a computer with shared resource is down?

Resource unavailability due to the specific computer being offline Signup and view all the answers

What is the primary difference between half-duplex and full-duplex communication modes?

In half-duplex mode, data can be sent and received, but not simultaneously, whereas in full-duplex mode, data can be sent and received simultaneously. Signup and view all the answers

What is an example of a simplex mode of communication?

Radio Signup and view all the answers

What is the benefit of full-duplex mode in terms of channel utilization?

It doubles the utilization of the capacity of the communication channel Signup and view all the answers

How many layers does the OSI model consist of, and what do they perform?

7 layers, each performing a particular network function. Signup and view all the answers

What is the primary function of the OSI model?

To describe how information from a software application in one computer moves through a physical medium to the software application in another computer. Signup and view all the answers

What is an example of a full-duplex mode of communication in real life?

A telephone network, where two people can talk and listen at the same time. Signup and view all the answers

Study Notes

Network Characteristics

A network must be scalable to allow for the addition of new devices, but this can decrease connection speed and increase the likelihood of errors.
Routing or switching devices can be used to overcome these issues.
A reliable network uses alternative sources for data communication in case of hardware failure.

Network Architecture

Network architecture refers to the physical and logical design of software, hardware, protocols, and media for data transmission.
It defines how computers are organized and tasks are allocated.
There are two types of network architectures: Peer-To-Peer and Client/Server.

Peer-To-Peer Network

A Peer-To-Peer network is a network where all computers are linked together with equal privileges and responsibilities.
It is suitable for small environments (up to 10 computers).
There is no dedicated server in a Peer-To-Peer network.
Special permissions are assigned to each computer for resource sharing, which can lead to problems if the computer with the resource is down.
Advantages of Peer-To-Peer networks include lower costs since no dedicated server is required.
Routers can split a single network into two smaller networks, reducing traffic load.

Modem

A modem is a hardware device that connects a computer to the internet over a telephone line.
It is not integrated with the motherboard and is installed on a PCI slot.
Modems convert digital data into analog signals for transmission over telephone lines.
Types of modems include Standard PC modem (Dial-up modem), Cellular Modem, and Cable modem.

Cables and Connectors

Cables are transmission media used for signal transmission.
There are three types of cables used in transmission: Twisted pair cable, Coaxial cable, and Fibre-optic cable.

Computer Network Types

A computer network is a group of computers linked together to enable communication and resource sharing.
Computer networks can be categorized by size into four types: LAN (Local Area Network), PAN (Personal Area Network), MAN (Metropolitan Area Network), and WAN (not mentioned in the text).

Network Communication Modes

Simplex mode: A device can only send or receive data, but not both simultaneously.
Half-duplex mode: A device can send and receive data, but not simultaneously.
Full-duplex mode: A device can send and receive data simultaneously, which has better performance and doubles the utilization of the communication channel.
Examples of Simplex mode include radio, keyboard, and monitor.
Examples of half-duplex mode include Walkie-Talkies.
Examples of full-duplex mode include a telephone network.

OSI Model

OSI stands for Open System Interconnection.
It is a reference model that describes how information from a software application in one computer moves through a physical medium to the software application in another computer.
OSI consists of seven layers, each performing a particular network function.

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Description

Test your knowledge on full-duplex and half-duplex communication modes. Learn about the differences between the two in terms of sending and receiving data simultaneously. See which mode offers better performance.