1. What is Network?
Answer: A set of devices (nodes) connected by communication links called a Network. OR
A network consists of two or more computers linked to share resources (such as printers and CDs), exchange files, or allow electronic communications. The computers on a network may be connected through cables, telephone lines, radio waves, satellites, or infrared light beams.
1.1. What is Node?
Answer: Node: Computer, printer, or any device capable of sending or receiving data that call node.
2. The direction of Data Flow
2.1. What is a data flow diagram?
=> The data flow chart in this diagram demonstrates a general design of the database server and its users. Clinical users can use the database client graphical user interface to import data easily.
A data flow diagram (or DPD for short) shows how processes flow through a system. It also gives you information about the inputs and outputs (where things come from, which route they go through, and where they end up) and the process itself. This includes data stores and the various subprocesses the data moves through.
Unlike a flowchart, there are no decision points. And unlike a network diagram, there are no loops. You might also notice the similarities between a data flow diagram and UML activity or use case diagrams. DFDs chart the progress of information through a system, while an activity diagram visualizes the entire system’s behavior, not just the data. Use case diagrams specifically focus on how user behavior affects the processes in a system, which typically involves data and manual activity.
3. Network Connection Types
There are different types of communications connection in existence between two endpoints., Home networks and the Internet is some of the most commonly used examples. Many types of devices are and several different methods are used to connect to these types of network architectures.
There are different advantages and disadvantages to this type of network architecture. Connecting computers to these types of networks requires some networking framework to create the connections. The two different computer network connection types are getting discussed on this page are Point-to-Point Connection and multipoint connection. The main difference between them we can get discussed with the help of the below definition.
There are 2 types of network connection they are:
i) Point-To-Point
ii) Point-To-Multipoint
3.1. Point-To-Point Connection
Point-to-point connections are typically used to connect two systems together over a wide area network (WAN). You can use a point-to-point connection to get data from your local system to a remote system or to get data from a local network to a remote network.
A point-to-point Connection is a private data connection securely connecting two or more locations for private data services. A point-to-point connection is a closed network data transport service that does not traverse the public Internet and is inherently secure with no data encryption needed. Point to Point connections is available in a range of bandwidth speeds including point-to-point T1, point-to-point Ethernet, or point-to-point DS3. A point-to-point connection provides unparalleled quality of service (QoS) as it is not a shared service (a private line) and follows the same direct network path every time. Point to Point links is used by businesses to provide reliable, secure point-to-point network data service for applications including credit card processing, file sharing, data backup, point-to-point VOIP, and video conferencing. A point-to-point network can also be configured to carry voice, video, Internet, and data services together over the same point-to-point connection. Point to Point circuits are also known as Point-to-Point Link, Private Line, Leased Line, or Data Line.
3.2. Point-To-Multipoint Connection
The point-to-multipoint topology consists of a central base station that supports several subscriber stations. These offer network access from a single location to multiple locations, permitting them to use the same network resources between them.
Point-to-multipoint (PMP) communication refers to communication that is accomplished through a distinct and specific form of one-to-many connections, offering several paths from one single location to various locations. Point-to-multipoint is generally abbreviated as PTMP, P2MP, or PMP. PMP communication is commonly used in telecommunications.
PMP is usually used for establishing private enterprise connectivity to offices in remote locations, long-range wireless backhaul solutions for various sites, and last-mile broadband access. As such, it is widely used in IP telephony and wireless Internet by means of gigahertz radio frequencies. These PMP networks are employed in distribution amenities, huge corporate campuses, school districts, public safety applications, etc.
Techopedia explains Point-to-Multipoint Communication (PMP)
The point-to-multipoint topology consists of a central base station that supports several subscriber stations. These offer network access from a single location to multiple locations, permitting them to use the same network resources between them. The bridge located at the central location is known as the base station bridge or root bridge. All data that passes between the wireless bridge clients should initially go via the root bridge.
A point-to-multipoint network can be easily deployed when compared to the deployment of a point-to-point network because the equipment has to be deployed only at the new subscriber's site. The only condition is that all the remote sites must come within the visibility and range of the base station. Hills, trees, and other kinds of obstructions make point-to-multipoint nods unsuitable for office and residential coverage.
PMP systems are categorized into single systems and bi-directional systems. A point-to-multipoint network is suitable for either customers or backhaul operations that are in need of a high-speed, reliable connection but are worried about paying for unused dedicated capacity. The drawback of point-to-multipoint node topology is its inability to interconnect with other nodes because of the directional antenna.
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