Topology

Star topology.

One of the most popular topologies for Ethernet LANs is the star and extended star topology. It is easy to setup, it's relatively cheap, and it creates more redundancy than the Bus Topology. The Star Topology works by connecting each node to a central device. This central connection allows us to have a fully functioning network even when other devices fail. The only real threat to this topology is that if the central device goes down, so does the entire network. The Extended Star Topology is a bit more advanced. Instead of connecting all devices to a central unit, we have sub-central devices added to the mix. This allows more functionality for organization and subnetting- yet also creates more points of failure. In many cases it is impractical to use a Star Topology since networks can span an entire building. In this case, the Extended Star Topology is all but necessary to prevent degraded signals. Whereas the Star Topology is better suited for small networks, the Extended Star Topology is generally better for the larger ones.

siddhi sawant

hi

i am not sure but its ring topoloy

A Local Area Network (LAN) may use many different types of topologies (how the network is physically wired). If one uses a ring topology, then a special type of managed hub is usually used which implements packet switching in a round, ring structure, in which each station is visited by the packet in linear sequence.

Ring topologies also involve the use of a 'token', which describes whether a station on the ring may use the network or not.

Ring topology can be considered as a LAN and it is rarely used nowadays.

there are a few different topologies when you are talking about WAN's but remember WAN's topologies are different than LAN's because of the area they cover. But there are bus wan, ring wan, star wan, full mesh wan, partial mesh wan, and tiered wan.

as far as a drawback to bus topology is that each site in the wan bus topolgy depends on every other site in the network to transmit and receive its traffic.

yes

All common topologies allow for computers to be arranged in a physical line.

The three most common are ring, star, and bus.

Here is a simple picture of the networks.

Rj-45 is the most common type of cabling. RJ-45 refers to the terminator (connector) on the end of the cable, and the jack it plugs into--more specifically RJ-45M and RJ-45F, respectively. The associated cabling will be CAT(category)-5 or CAT-5e(enhanced), which are in the class of Unshielded Twisted Pair. A star network is typified by the hub or switch, with a cable running from it to every device on the network. Other cabling might be used, but CAT-5 is far and away most common.

A switch topology is an organizational representation of the channels and relays in a switch module. The topology establishes the default states for all relays in a module and defines the channel names. Some switches can use multiple topologies or variations of each topology type. Some terminal blocks or accessories may force the switch to use a given topology or set of topologies. GHOUL

ESS

A star-wired bus is a hybrid topology (more than 1 type of topology). There is no particular access method that requires or relies on that type of hybrid.

topologi star merupakan salah satu topologi dalam sistem internet atau jaringan sehingga antara komputer server dan komputer klien saling berhubungan. dimana topoligi star banyak digunakan dalam jaringan LAN maupun WAN. selain mudah dalam instalasinya, topologi star tidak memerlukan banyak komponen pendukung serta hemat dalam segi biaya.

by using tokens

When a frame is corrupted on a bus topology, it never reaches its destination. The bus topology has a method called ACK. ACK for acknowledgment sent on the back of each request. So if the destined computer gets the packet it sends back an acknowledgment signal. Therefore it the first computer sent a corrupted frame if the time-out occurs meaning it did not receive an ACK back then the ARQ(automatic repeat request) is called and the original re-sends its message until it receives its ACK.

45 cables because if the formula will apply no. of cables={n(n-1)/2)} (n stands for number of devices) {10(10-1)/2} {10(9)/2} 90/2=45

SONET use RING physical topology and TOKEN logical topology. As simple as that. Logical topology deals with the data transmission. Physical topology deals with how the network is connected physically , BUS, RING, STAR and the like.

No, within a bus topology, the client PC's are indepentent of each other. So if PC 1 fails, PC 2 will still be connected to the server. But, PC 2 won't be able to get data/information from PC 1.

A bus topology uses cable to go from one device to another, in a daisy chain. There are no other devices required, such as hubs, switches, repeaters, etc.

star and mesh

Among all the Network Topologies we can derive that the Tree Topology is a combination of the bus and the Star Topology. The tree like structure allows you to have many servers on the network and you can branch out the network in many ways. This is particularly helpful for colleges, universities and schools so that each of the branches can identify the relevant systems in their own network and yet connect to the big network in some way

terminator humko malum nahi..

to provide good load balancing and good scalability.

Mainframe computers first used star topology

RAHASIA a.k.a SECRET!