Network Topology
Made By-Gaurav YadavClass - X - D
Network Topology Physical topology refers to the
placement of the network's various components, including device location and cable installation, while logical topology shows how data flows within a network, regardless of its physical design
Types Of Physical Topology
Bus Topology Star Topology Ring Topology Tree Topology Mesh Topology
Bus Topology A linear bus topology consists of a
main run of cable with a terminator at each end. All servers workstations and peripherals are connected to the linear cable
Advantages –
Easy to install and use. Cables are less used then star or ring
topology.
Disadvantages-
Disorder in any node may lead to failure of entire data transmission.
It is difficult to add a new node to the structure.
Bus Topology
Star Topology A star network is designed with
each node (file server, workstation, peripheral) connected directly to a central network hub or server.
Advantages – An advantage of the star topology is
the simplicity of adding additional nodes.
Good option for modern networks Low startup costs Easy to manage
Disadvantages- Hub is a single point of failure Requires more cable than the bus
Star Topology
Ring Topology A ring network is one where all
workstations and other devices are connected in a continuous loop. There is no central server. A network topology that is set up in a circular fashion in which data travels around the ring in one direction and each device on the ring acts as a repeater to keep the signal strong as it travels
Advantages-
Easier to manage; easier to locate a defective node or cable problem
Handles high-volume network traffic Enables reliable communication
Disadvantage-
Expensive Requires more cable and network
equipment at the start
Ring Topology
Tree Topology This particular type of network
topology is based on a hierarchy of nodes. The highest level of any tree network consists of a single, 'root' node, this node connected either a single (or, more commonly, multiple) node(s) in the level below by (a) point-to-point link(s)
Advantages – It is scalable. Secondary nodes allow more
devices to be connected to a central node. Point to point connection of devices. Having different levels of the network makes
it more manageable hence easier fault identification and isolation.
Disadvantages- Maintenance of the network may be an issue
when the network spans a great area. Since it is a variation of bus topology, if the
backbone fails, the entire network is crippled.
Tree Topology
Mesh Topology It is also known as graph topology. In this topology each
node is connected in another node “Directly". So there is a mesh in the network as there are so many wires that are connected to each and every node.
Fully Connected- A fully connected network is a communication network in which each of the nodes is connected to each other. A fully connected network doesn't need to use switching nor broadcasting.
Partially Connected- The type of network topology in which some of the nodes of the network are connected to more than one other node in the network with a point-to-point link.
Mesh Topology Fully Partially
M.C.Q Physical topology have _____ no. of
topologies? (a)Five (b)Two Ans. (a)Five
In case of failure of one node in ring topology the whole system crashes
(a)True (b)False Ans. (b)False
If hub fails then whole network fails. a)True (b)False Ans. (a)True
Mesh topology is of _______ types. (a)three (b)two Ans. (b)two
Bus topology is _____________ (a)Expensive
(b)cheap Ans. (b)Cheap
_______ topology require more cable than Bus topology
(a)Star (b)Ring Ans. (a)Star
In ______topology each node is connected to a single cable?
(a)Bus (b)Ring Ans.(a)Bus
Token passing is used in ________ topology? (a)Star (b)Ring Ans.(b)Ring
Topology is divide in _____ types in accordance with the transmission method
(a)three (b)two Ans. (b)two
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