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Flashcards in Topology Facts Deck (15)
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1
Q

Physical Topology

A

Describes the way the network is wired

2
Q

Logical Topology

A

Describes the way in which messages are sent

3
Q

Bus

A

Consists of a trunk cable with nodes wither inserted directly into the trunk or tapped into the trunk using offshoot cables called drop cables.

4
Q

Bus Facts

A
  • Signal travel from node to all other nodes
  • A device called a terminator is placed at both ends of the trunk cable
  • Terminators absorb signals and prevent them from reflecting repeatedly back and forth on the cable.
  • It can be difficult to isolate cabling problems
  • A broken cable anywhere on the bus breaks the termination and prevents communications between any devices on the network
5
Q

Ring

A

Connects neighboring nodes until they form a ring. Signals travel in one directions around the ring; each device on the network acts as a repeater to send the signal to the next device

6
Q

Ring Facts

A
  • Installation requires careful planning to create a continuous ring
  • Isolating problems can require going to several physical location along the ring
  • A malfunctioning node or cable break can prevent signals from reaching nodes further nodes further along on the ring.
7
Q

Star

A

Uses a switch a hub or switch to connect all network connection to single physical location. It is the most popular topology for a LAN

8
Q

Star Facts

A
  • All network connections are located in a single place, which makes it easy to troubleshoot and reconfigure
  • Nodes can be added to or removed from the network easily
  • Cabling problems usually affect only one node
9
Q

Mesh

A

Exists when there are multiple paths between any two nodes on a network. Mesh topologies are created using point-to-point connections. Increases the network’s fault tolerance because alternate paths can be used when one path fails
* Impractical for in standard LAN

10
Q

Partial Mesh

A

Some redundant paths exist

11
Q

Full Mesh

A

Every node has a point-to-point connection with every other node

12
Q

Logical Topology: BUS

Physical Topology: BUS/STAR

A

Messages ae sent to all devices connected to the bus

13
Q

Logical Topology: RING

Physical Topology: RING/STAR

A

Messages are sent from device to device in a predetermined order until they reach the destination device

14
Q

Logical Topology: STAR

Physical Topology: STAR

A

Messages are sent directly to (and only to) the destination device

15
Q

Logical Topology: MESH

Physical Topology: MESH

A

Messages are sent from one device to the next around the ring until they reach the destination device.