What is a data communication system?
Data communications refers to the transmission of this digital data between two or more computers and a computer network or data network is a telecommunications network that allows computers to exchange data. The best-known computer network is the Internet.
What are the three categories of data communication?
Communication networks have three different types or channels known as simplex, half-duplex, and full-duplex. Simplex allows data to flow in one direction, similar to driving on a one-way street.
What is the data communication system within a building called?
* LAN is a data communication system within a building, plant or campus or between nearly building. * A WAN is a data Communication system spanning states, countries or whole world. * An internet is a network of networks. * The International standards organization (ISO) creates a model called the open system.
Can full form network?
CAN: A Controller Area Network (CAN bus) is a vehicle bus standard designed to allow microcontrollers and devices to communicate with each other in applications without a host computer.
Which one is not type of topology?
Discussion Forum
| Que. | Which of the following is not type of the network topology? |
|---|---|
| b. | Bus |
| c. | Ring |
| d. | stub |
| Answer:stub |
Which topology is best?
star topology
What is topology and types?
Geometric representation of how the computers are connected to each other is known as topology. There are five types of topology – Mesh, Star, Bus, Ring and Hybrid.
What is a topology diagram?
A network topology diagram helps visualize the communicating devices, which are modeled as nodes, and the connections between the devices, which are modeled as links between the nodes.
What is tree topology with diagram?
A tree topology is a special type of structure where many connected elements are arranged like the branches of a tree. For example, tree topologies are frequently used to organize the computers in a corporate network, or the information in a database.
Which topologies are used in LAN?
The major topologies of LAN are:
- Bus Topology.
- Ring Topology.
- Star Topology.
- Mesh Topology.
- Cellular Topology.
- Hybrid Topology.
What is ring topology with diagram?
A ring network is a network topology in which each node connects to exactly two other nodes, forming a single continuous pathway for signals through each node – a ring. Data travels from node to node, with each node along the way handling every packet.
What is advantage and disadvantage of ring topology?
Due to the Uni-directional Ring, a data packet (token) must have to pass through all the nodes. If one workstation shuts down, it affects whole network or if a node goes down entire network goes down. It is slower in performance as compared to the bus topology. It is Expensive.
Where is ring topology commonly used?
school campuses
Which device is used in ring topology?
Ring topologies may be used in either LANs (local area networks) or WANs (wide area networks). Depending on the network card used in each computer of the ring topology, a coaxial cable or an RJ-45 network cable is used to connect computers together.
What are the two type of ring topology?
There are two types of the Ring Topology based on the data flow: Unidirectional and, Bidirectional.
What is the use of tree topology?
Tree topology is used to identify the system on the network, to share information across network and allows users to have many servers on the network. Tree topology is the best topology because the signals that are transmitted by the root nodes are received by all the computers at the same time.
What means topology?
In mathematics, topology (from the Greek words τόπος, ‘place, location’, and λόγος, ‘study’) is concerned with the properties of a geometric object that are preserved under continuous deformations, such as stretching, twisting, crumpling and bending.
What is basic topology?
In mathematics, a base or basis for the topology τ of a topological space (X, τ) is a family B of open subsets of X such that every open set is equal to a union of some sub-family of B (this sub-family is allowed to be infinite, finite, or even empty).
What is topology simple words?
Topology is an area of Mathematics, which studies how spaces are organized and how they are structured in terms of position. It also studies how spaces are connected. It is divided into algebraic topology, differential topology and geometric topology.
What is physical topology?
The physical topology is the way you physically lay out the network, like a map, and the logical topology is the way the information flows on the network. Usually, the physical and logical topology is the same, but sometimes they can differ, such as in a physical star/logical ring topology.
What are the types of physical topology?
In a computer network, there are mainly six types of physical topology, they are:
- Bus Topology.
- Ring Topology.
- Star Topology.
- Mesh Topology.
- Tree Topology.
- Hybrid Topology.
How many types of physical topologies are there?
Local Area Networks There are three basic physical topologies: bus, ring, and star. That is, the cables in a network approximate the shape of a bus, ring, or star. In a bus physical topology, all devices are connected in a line along a single channel. Signals propagate along the entire length of the bus.
What is physical and logical topology?
A logical topology is how devices appear connected to the user. A physical topology is how they are actually interconnected with wires and cables. However, its physical topology is a star, in which every node on the network connects to a central hub. See Ethernet and logical vs. physical.
What is logical topology diagram?
A logical network diagram describes the way information flows through a network. Therefore, logical network diagrams typically show subnets (including VLAN IDs, masks, and addresses), network devices like routers and firewalls, and routing protocols.
What is the difference between a physical and logical network diagram?
Logical network diagrams focus in on how traffic flows across the network, IP addresses, admin domains, how domains are routed, control points, and so on. A physical network diagram will, ideally, show the network topology exactly as it is: with all of the devices and the connections between them.
What are the types of logical topology?
Logical Topologies. The two logical topologies are broadcast (also known as bus) and sequential (also known as ring). In a broadcast topology, all devices on the network receive every message transmitted. Each device is responsible for recognizing messages meant for it.
What is a logical connection?
A A logical connection consists of a pair of physical connections that are configured in a warm-standby environment. The source of the replication data is the active database while the target of replication is the standby database.
What is logical configuration?
The configuration of the network that contains the resources you want to simulate and the real system you are testing is called the logical configuration. For each logical configuration, you must use a specific physical configuration, which is the configuration of the system you use to run WSim.
How do you explain a network diagram?
A network diagram is a graphical representation of the project and is composed of a series of connected arrows and boxes to describe the inter-relationship between the activities involved in the project. Boxes or nodes represent the description of activities and arrows show the relationship among the activities.