Table of Contents
What is Ethernet topology?
Ethernet is the most widely used network topology. … Ethernet uses CSMA/CD (Carrier Sense Multiple Access with Collision Detection). In this method, multiple workstations access a transmission medium (multiple access) by listening until no signals are detected (carrier sense).
Which topology is used in Ethernet *?
Bus topology Bus topology: Ethernet uses the logical bus topology to transfer data.
What is star in network topology?
A star network is an implementation of a spokehub distribution paradigm in computer networks. In a star network, every host is connected to a central hub. In its simplest form, one central hub acts as a conduit to transmit messages. The star network is one of the most common computer network topologies.
What is the advantage and disadvantage of star topology?
Advantages and disadvantages of a star network it is expensive to install as this type of network uses the most cable (network cable is expensive) extra hardware is required (hubs or switches) which adds to cost. if a hub or switch fails, all the devices connected to it will have no network connection.
What are the 5 types of Ethernet topology?
The different types of ethernet topology are ring, bus, mesh, hybrid and star topology.
Which Ethernet architecture is used in star topology?
Cable type. The most common cable in schools is unshielded twisted pair, which is most often used with star topologies.
Which protocol is used in Ethernet?
Ethernet/IP uses all the transport and control protocols used in traditional Ethernet including the Transport Control Protocol (TCP), the Internet Protocol (IP) and the media access and signaling technologies found in off-the-shelf Ethernet interface cards.
How many bits are there in the Ethernet address?
48 bits In a LAN, each node is assigned a physical address, also known as a MAC/Ethernet address. This address is unique to each of the nodes on the LAN and is 6 bytes (48 bits) long, which is burned on the Ethernet card (also known as the network interface card).
What are the three main network topologies?
There are different ways of setting up a LAN , each with different benefits in terms of network speed and cost. Three of the main topologies include bus, star and ring.
What is star configuration?
In a star configuration all three phase conductors of a three-phase system are electrically connected at one end. The resulting connection, which forms the centre point, is referred to as star point. It is connected to the neutral conductor (N). The free ends are connected to the external conductors (L1, L2, and L3).
Which topology is better star or bus?
Star topology has high implementation cost because of central hub and extra wires required for connection. Bus topology is less expensive than star topology. 6. Data transmission is faster in star topology.
What is star topology class 10?
A star topology is a topology for a Local Area Network (LAN) in which all nodes are individually connected to a central connection point, like a hub or a switch. … The central hub is usually a fast, self contained computer and is responsible for routing all traffic to other nodes.
Why use a router in a star topology?
The star topology rectifies the scalability problems of peer-to-peer networks by using a router to interconnect, or concentrate, all the other networked routers.
What happens if a connection fails in star topology?
If one cable breaks or fails, only the computer that is connected to that cable is unable to use the network. 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.
What happens if a host goes down in star topology?
What happens if a host goes down in a star topology? … The downed host will not have a connection to the central hub, but all other devices can connect. The data will instead work downstream up to the break.
What topology do terminators use?
Terminators are used in bus topology.
How does a star wired bus topology work?
Star Bus is a networking topology in which hubs for workgroups or departmental local area networks (LANs) are connected by using a network bus to form a single network. Star bus topology is a combination of star topology superimposed on a backbone bus topology. … Crossover cables for regular (host) ports on the hub.
What is extended star topology?
A hierarchical or extended star topology is a star network with an additional networking device connected to the main networking device. Typically, a network cable connects to one switch, and then several other switches connect to the first switch.
Where is star topology commonly used?
Star topologies tend to be found in large organisations, such as educational establishments and businesses, where high performance is a must. They are also found in home networks, especially those that are wireless. In this case, a router with a wireless access point (WAP) provides the central connection for all nodes.
Which is best network topology?
A full mesh topology provides a connection from each node to every other node on the network. This provides a fully redundant network and is the most reliable of all networks.
Which LAN topology is a hybrid topology?
Star-Ring and Star-Bus networks are most common examples of hybrid network. These are two examples of hybrid topology: Star-Bus: The star bus topology is combined with the linear bus in large networks. In such cases the linear bus provides a backbone that connects multiple stars.
Is Ethernet capitalized?
Short answer: The word ethernet is capitalized because Ethernet is the currently accepted convention.
Is Ethernet a TCP or UDP?
EtherNet/IP makes use of TCP port number 44818 for explicit messaging and UDP port number 2222 for implicit messaging.
What are the three major network protocols?
There are three main types of network protocols. These include network management protocols, network communication protocols and network security protocols: Communication protocols include basic data communication tools like TCP/IP and HTTP. Security protocols include HTTPS, SFTP, and SSL.
What does FF FF FF FF FF FF mean?
Broadcast is one to all type of communication. … In other words; send once receive all.
How many bits are there in the Ethernet address * 64 bits 48 bits 32 bits 16 bits?
The Ethernet address is 48 bits long and normally displayed as 12 hexadecimal digits.
Which IP packet must contain?
Each IP packet must contain: (i) Only Source address (ii) Only Destination address (iii) Source and Destination address (iv) Source or Destination address. Option (iii) Source and Destination address.
How many network topologies are there?
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.
What are basic network topologies?
The study of network topology recognizes eight basic topologies: point-to-point, bus, star, ring or circular, mesh, tree, hybrid, or daisy chain.