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Are devices in a single collision domain in the same broadcast domain?
Wiki User
∙ 14y ago
Wiki User
∙ 14y ago
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How many collision and broadcast domain are there if a router is directly connected to hub?
A hub contains a single collision domain and a single broadcast domain, regardless of the number of ports on the hub.
Briefly describe about broadcast and collision domain.?
A collision domain consists of all the clients that could possibly cause a collision amongst themselves by sending a packet at the same time. Devices such as hubs create a single collision domain which means that everyone connected to the hub has the capability of causing a collision (which is a problem).A broadcast domain consists of all the clients that can receive the same broadcast packet. Unlike a collision domain this is not a problem. Think of it as those systems that are capable of receiving the broadcast message.
How many collision domain in a hub?
Hubs are not collision domains but a networking device. Hubs have single collision domain that makes them very undesirable for modern networks.
What is a single collison domain?
A collision domain is an area on the network where two devices may attempt to transmit at the same time. A hub has 1 collision domain overall. A switch has 1 collision domain per interface. The fewer devices in 1 collision domain, the better. ----
Is a VLAN essentially a collision domain?
No- A VLAN is a single broadcast domain. If the VLAN uses a hub, which essentially connects all devices on a single wire, the the VlAN would be a collision domain. However hubs are rarely seen these days. A network switch keeps every device separated on individual collision domains so every device is kept from colliding with any other device.
When segmenting a LAN what device cannot be used to reduce the collision domain?
Hubs do not reduce collision domains. All devices connected to the hub are in a single collision domain, where as on a switch, each port is its own collision domain.
Is the characteristics of hub is multiple collision domain?
A hub has a single collision domain, which is why it can cause problems when network traffic is high.
What does implementing a lan switch reduce?
Lan switches eliminate collision domain. A single collision domain in a network would mean half duplex as it can only send or receive at one time. each port of a switch is considered a collision domain in itself. so more the number of collision domain , better for the network.
What are the key points of collision domain?
All computers on a single shared access media
What is meant by single broadcast domain and single collision domain?
A collision domain is a section of a network where data packets can collide with one another when being sent on a shared medium or through repeaters, in particular, when using early versions of Ethernet. A network collision occurs when more than one device attempts to send a packet on a network segment at the same time. Collisions are resolved using carrier sense multiple access with collision detection in which the competing packets are discarded and re-sent one at a time. This becomes a source of inefficiency in the network.[1]Only one device in the collision domain may transmit at any one time, and the other devices in the domain listen to the network in order to avoid data collisions. Because only one device may be transmitting at any one time, total network bandwidth is shared among all devices. Collisions also decrease network efficiency on a collision domain; if two devices transmit simultaneously, a collision occurs, and both devices must retransmit at a later time.Collision domains are found in a hub environment where each host segment connects to a hub that represents only one collision domain and only one broadcast domain. Collision domains are also found in wireless networks such as Wi-Fi.Modern wired networks use a network switch to eliminate collisions. By connecting each device directly to a port on the switch, either each port on a switch becomes its own collision domain (in the case of half duplex links) or the possibility of collisions is eliminated entirely in the case of full duplex links.A broadcast domain is basically a VLAN. The broadcast domain defines how far a Layer-2 broadcast will propagate on the network, which is to say the broadcast will hit every device on the VLAN, or every device on the "subnet". Routers block broadcasts by design. If you need to leave your broadcast domain (get off your local subnet) then you jump up to layer 3 and go through a router to talk to machines on some other broadcast domain. The layer 2 broadcast will typically traverse all hubs, bridges and switches in a single VLAN. If you question was in the context of using a "single broadcast domain" just be careful not to do that for a relatively large network with several hundred or thousands of nodes, or the network performance and/or the end-station performance will suffer because of all the broadcast traffic.
Some more difference between single collision domain and broadcast domain?
A collision domain is a logical network segment where data packets can "collide" with one another for being sent on a shared medium, in particular in the Ethernet networking protocol. This is an Ethernet term used to describe a network scenario wherein one particular device sends a packet on a network segment, forcing every other device on that same segment to pay attention to it. A broadcast domain is a logical network segment in which any computer or other device connected to the network can directly transmit to any other on the domain without having to go through a routing device, provided that they share the same subnet address and are in the same VLAN, default or installed. More specifically, a broadcast domain is the area of the computer network composed of all the computers and networking devices that can be reached by sending a frame to the data link layer broadcast address. A very basic network that uses hubs rather than switches or routers is like a post office clerk checking the mail. One clerk looks at each letter to confirm that the mail is not for themselves.
Why are switches more important than hubs as they both transmit data through ports?
Switch work's full-duplex mode, but HUB work's on Half-duplex mode. each port of switch is a different collision-domain, but HUB is single collision-domain.
