Which of the following topologies is physically a star but logically a bus?
Table of Contents
- 1 Which of the following topologies is physically a star but logically a bus?
- 2 How can a network with a physical star topology operate logically as a bus network?
- 3 Is Ethernet a star or bus?
- 4 What network topology is a switch?
- 5 Has a physical star topology but a logical ring topology?
- 6 Why star topology is more reliable than bus topology?
- 7 Why is the Ethernet a bus topology?
- 8 What is physical star logical bus?
- 9 What is star topology and is it scalable?
- 10 How is logical bus topology implemented?
- 11 What is the central hub in star topology?
Which of the following topologies is physically a star but logically a bus?
For example, the original twisted pair Ethernet using repeater hubs was a logical bus topology carried on a physical star topology. Token Ring is a logical ring topology, but is wired as a physical star from the media access unit.
How can a network with a physical star topology operate logically as a bus network?
Even if the physical connections between clients and the central hub follow that of the physical star topology, running a bus protocol on the hub allows it to distribute packets to all of the connected clients so as to act like a bus network.
What is the main difference between the bus and star network topologies?
The crucial difference between bus and star topology is that bus topology uses a single cable through which various peripheral devices are connected. As against a star, topology makes use of a central hub or switch that broadcasts information to all the devices in the network.
Is Ethernet a star or bus?
The two possible topologies for Ethernet are bus and star. The bus is the simplest (and the traditional) topology. Standard Ethernet (10BASE5) and Thin Ethernet (10BASE2), both based on coax cable systems, use the bus.
What network topology is a switch?
star topology
A network with a switch at the core and multiple devices connected in a star topology is called a Local Area Network, or LAN; the LAN may itself be connected to another network.
What is physical network topology?
Physical topology refers to the interconnected structure of a local area network (LAN). The method employed to connect the physical devices on the network with the cables, and the type of cabling used, all constitute the physical topology.
Has a physical star topology but a logical ring topology?
FDDI uses both a logical and physical ring, but Token Ring is a logical ring topology that runs on a physical star, for example. Stars feature better fault tolerance: any single local cable cut or NIC failure affects one node only.
Why star topology is more reliable than bus topology?
Star topology is used to ease the probabilities of network failure by connecting all of the systems to a central node. In contrast to the bus topology, the star topology allows each machine on the network to have a point to point connection to the central hub and there is no single point of failure.
What is network topology explain star and bus topology with the help of suitable diagrams?
Summary
| Topology | What it is |
|---|---|
| P2P | The network consists of a direct link between two computers |
| Bus | Uses a single cable which connects all the included nodes |
| Ring | Every device has exactly two neighboring devices for communication purpose |
| Star | All the computers connect with the help of a hub. |
Why is the Ethernet a bus topology?
The Ethernet operates on a logical bus topology. All the components on the network share the same medium and are detected based on the MAC address. Due to the shared component, the multiple components transfer at the time of data collisions.
What is physical star logical bus?
The term logical topology refers to how the network behaves. So, people might describe a network using a hub as a physical star, but a logical bus. The logical topology for the switch network is a star because, unlike a hub, a switch does not repeat the signal out every port, but just to the appropriate device.
Why switch is used in star topology?
In a star topology, each network node is connected to a central device called a hub or a switch. Star topologies are also commonly used with LANs. As a result, when a switch receives a packet intended for a particular computer, it sends the packet only to the port that the recipient is connected to.
What is star topology and is it scalable?
A star topology is scalable. As the network grows or changes, computers are simply added or removed from the central connection point, which is usually a hub or a switch. Because there is so much cabling used to connect individual computers to a central point, this may increase the cost of expanding and maintaining the network.
How is logical bus topology implemented?
In this implementation, logical bus topology is implemented as a physical bus or star topology. When it is implemented as a physical star topology, a Hub is used in the center of the topology. Regardless, whether you use a physical star or bus topology, data transmitted from a node is received by all other nodes.
What is physical topology in networking?
Physical Topology: A physical topology describes the way in which the computers or nodes are connected with each other in a computer network. It is the arrangement of various elements (link, nodes, etc.), including the device location and code installation of a computer network.
What is the central hub in star topology?
In star topology, the central site plays an important role; if it fails, all the connections will go down. Performance of the central hub dictates the performance of the connection. For a star topology, it may happen that two nodes might be closed to each other; however, they will have to communicate via central node. View chapter Purchase book