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Topology

While geometry is primarily concerned with the mathematical properties of spatial objects, topology is concerned with the mathematical properties of those objects under continuous deformations. Please post all questions about topological subjects like homeomorphisms, manifolds, convergence, and connectedness, as well as their broad applications in computing, physics, and graph theory, into this category.

1,087 Questions

What happens to frame when corrupted on bus topology?

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.

SONET uses which topology?

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.

Assume ten devices arranged in a mesh topology How many cables are needed How many ports are?

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

If a computer fails in a bus topology it doesn't affect data transfer on the rest of the network?

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.

Which type of physical topology uses a single length of cable end to end?

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.

What is tree topology?

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

What is wireless topology?

It's a network architecture which employs wireless devices. Compared to "classical" network topology, where the cable is network medium, in wireless networks is the air a network medium. It means, that all data travels through the air.

Wireless topology can be of 2 basic categories:

Ad-hoc = no central device, just a bunch of computers connected together through their wireless network adapters.

Infrastructure = there is a central device called "access point" to which all client computers connect. This access point provides interconnectivity between clients and also sometimes between the wireless and wired network.

What are the good performance of star topology?

because star topology make another computer will continue their working even another computer have a problem or each of the computer cable have the problem..

What is physical layout in the network topology?

netwok topology is firstly the process of configuring computer system and peripherals in other for it to have a maintained and stabled communication link in a network environment. so there must be a layout of configuration and networking environment....

What is topology and which of the most commonly used topology these days and why?

Ethernet is easily the most common topology having replaced token ring in the 90's. Simply because of it's ease of use with CAT5 cabling, cheap networking hardware and not needing any termination.

What is the conclusion of network topology?

The conclusion of network topology is to ensure that the system is working as required. Topology refers to the physical wiring process in a network.

Topology represents a collision-free environment?

This is false, topology does not have any representation in the environment. Topology is a study of mathematical shapes and spaces. It focuses on their constant deformations.

What type of network topology for a small company of 20 employees a bus network or ring network or star network?

Star is more appropriate, it's little bit expensive than for instance ring but it's easier to maintain and the bandwidth is higher (depending on UTP you are going to use).

Does Ethernet use ring topology?

No, today virtually all networks use some variation of a star topology. It's far less subject to failure.

If you were a printer how many points would make an inch?

This could vary from how much you set it up. A printer could go from 50dpi-800dpi. (dpi is dots per inch.) For type setters, 72 points equals one inch.

How many views are possible for an orthographic drawing?

Six views are possible for an orthographic drawing, though three views are usually enough.