What is the DCN in network technologies? 

The DCN is a digital communication network system that included the system and model for providing the communication system between two or more users through the computer system and the input and output hardware resources to provide the input data and the output data to the computer system on the application software used in the communication system to provide to communication feature such as:- to sharing the video file, audio clip, text data message, text documents and the image files with graphics animation files to provide the information to the user who is connected to the application software in the network model for the user to use these types of service to share the information to the users based on the one to one, many to one, one to many and many to many users can share the files to each other.

The TCP/IP model or OSI model is mostly used in the Communication and network for providing the connection using the different types of communication layers such as:- application layer supports application software user interface to each other, transport layer, network layer etc.

The other communications system model is used for providing one to many based networks such as:- UDP model which stands for User Datagram Protocol for providing the information in the form of live telecast in the digital communication network on the internet.

A Digital Communication Network (DCN) is a type of network used to transfer data or information in digital form (as opposed to analog signals) across various devices and locations. DCNs are foundational in modern communications, enabling systems to transmit data accurately, securely, and quickly through various digital protocols and technologies.

There are some points on the characteristics of Digital Communication Networks

Data Transmission

Information is encoded in binary form (0s and 1s), which allows data to be compressed, encrypted, and transmitted efficiently.

The data transmission is based on the data cable capacity to transfer the data to each other connected into the network model and communication system model.

Error Detection and Correction

Digital networks often include error-checking protocols to ensure data integrity, which is harder to achieve with analog signals.

High Reliability and Accuracy

Digital signals can be regenerated without degradation, leading to more reliable communication over long distances.

Security

Digital encryption methods can be applied to data, allowing for secure communication channels and protection of sensitive information.

Components and Examples of DCNs

Local Area Networks (LANs), Wide Area Networks (WANs), and Metropolitan Area Networks (MANs) are examples of DCNs.

Internet Protocol (IP) networks, which serve as the foundation of the internet, are a type of DCN.

Mobile Networks (e.g., 4G, 5G), which rely on digital communication to transmit voice, video, and data services.

Optical Fiber Networks, which use light pulses to carry digital data over large distances at high speeds.

Importance of Digital Communication Networks

DCNs are essential in almost every sector today, including telecommunications, business, finance, education, healthcare, and entertainment. They allow for fast, accurate, and global communication, supporting applications such as video conferencing, online banking, data storage, and cloud computing. Additionally, they serve as the backbone for emerging technologies, like the Internet of Things (IoT), artificial intelligence, and smart cities.

Introduction to the computer related topic of computer application and system technology topic is following below here:

What is the DCN in network technologies? 

Let’s discuss this topic following above the related topic of computer application and system technology and explanation following below here:

What is the DCN in network technologies?

There are some points on the computer system and the network technologies related to the topic of “What is the DCN in network technologies?” following below here:

• Communication network provides the service of connecting users through communication system included hardware and software

• Communication network grows the online business because the communication network allows to share the data with four types of data such as:- text data, image data, audio data and video data

• The video data is most useful for online business to sell with video advertisement to show how the product used in the user requirements

• Security system is needed to apply on the digital communication network or (DCN) to the database from the unknown attackers

Let's discuss the points above about the computer system and the digital communication network related to the topic of “What is the DCN in network technologies?” explanation following below here:

Here is the points related to the DCN digital communication network following below here:

Communication network provides the service of connecting users through communication system included hardware and software

Communication system the included the Hardware resources that provide the system of connecting many computers that makes a communication system between many computers that are connected in the network model to provide the communication system between users.

The Hardware resources such as:- network device (hub, server, switch etc), data cable, computer system, input devices (keyboard,mouse, webcam, microphone, scanner etc) and output devices (speaker, monitor, printer etc) and the storage devices (HDD, SSD, tape library, disk arrays etc).

These are the different types of resources that provide the network model for the user to connect and install the application software for communication systems to make a communication between two or more users.

Communication network grows the online business because the communication network allows to share the data with four types of data such as:- text data, image data, audio data and video data

The text data is used to read and type the data through the input resource keyboard to provide the text data to the user in the messages and file documents etc. To share between the users and the users can communicate through the text data.

The image data and the video data is based on the object database model to share in the form of the files to the user through an application software which supports the object based files to share the file to the users who are connected to the application software which is used for communication systems in the network model.

The audio data is used to provide the sound data to hear with the video database combination to make complete information through the video for growing business in the network model or the communication systems on the internet.

The video data is most useful for online business to sell with video advertisement to show how the product used in the user requirements

The video database uses the resources such as:- the webcam is used to take input data, microphone input device is used to take audio input data to the video for making combination file matches the correct frequency of the video database file and the audio database file to develop a complete information based on the video database file which is used to share or direct connection in the form of video call or the video chatting or sharing the video file to the user through the application software that supports the video database file.

The video database uses in the online business generally for educational purposes and meeting for the company to getting the solution with the discussion on the particular project through the online video calling or video chatting or video conferencing system for the users who are connected but living at long distance area those employees who has not possible for daily up down for office.

Security system is needed to apply on the digital communication network or (DCN) to the database from the unknown attackers

Security system included the user authentication system in the layer on the application software or the network operating system to provide the security layer for the user to access their account on the network model for the communication system.

The authentication system of security model included generally based on the relational database model security system such as:- a username and the password for verification which behind the SQL program working for process of verification using the data control language for the security model based on the relational database model because the relational database model supports and process the text data only which is used to provide the text based process backend processing system on the application software or the network operating system to work for security system to passes if the username and password are correct then the user will allowed to access their account which has been created before the accessing of the network model or the communication system through the application software user interface.