What does physical topology of a network refer to?
It refers to the configuration of cables, computers, and other peripherals.
What is Logical Topology?
It's the method used to pass information between workstations.
What are the five main types of Physical Network Topologies?
Star, Ring, Bus, Tree, and Mesh
How is a Star Topology designed?
Star Topology is designed with each node (file server, workstation and peripheral) connected directly to a central network hub.
List three advantages of a star topology.
Easy to install and wire. No disruptions to the network when connecting or removing devices. Easy to detect faults and to remove parts.
List three disadvantages of a star topology.
Requires more cable length than a linear topology. If the hub fails, nodes attached are disabled. More expensive than a linear bus because of the cost of the hub.
How does a ring topology connect devices?
It connects all devices in a circle with each device having exactly two neighbors.
How many neighbors does each device in a ring topology have?
What is the advantage of a ring topology?
It minimizes the number of cables needed.
What is the disadvantage of a ring topology?
Failure of one device can take down the entire network.
What does a linear bus topology use to connect all network devices?
Linear Bus Topology uses a common backbone cable to connect all network devices.
What does the backbone cable function as?
The backbone cable functions as a shared communication link, which carries network data.
What is a "terminator"?
The backbone cables stops at each end of the network with a special device called a "terminator"
List two advantages of a Linear Bus Topology.
Easy to connect a computer or peripheral to linear bus. Requires less cable length than a star topology.
List four disadvantages of a Linear Bus Topology.
Entire network shuts down if there is a break in the main cable. Terminators are required at both end of the backbone cable. Difficult to identify the problem If the entire network shuts down. Not meant to be a stand-alone solution In a large building.
The Tree Topology is a blend of what?
Tree Topology is essentially a blend of star and bus networks.
List two advantages of a Tree Topology.
Tree topologies offer excellent flexibility for expansion for example, a single link to the back bone cable can add an entire group of star-configured devices. Point-to-point writing for individual segments.
List three disadvantages of a Tree Topology.
Overall length of each segment is limited by the type of cabling used. If the backbone line breaks, the entire segment goes down. More difficult to configure and wire than other topologies.
Which topology connects each network device to many other network devices?
A Mesh Topology
List one advantage of a Mesh Topology.
Extremely fault tolerant
List four disadvantages of a Mesh Topology.
Difficult to implement Difficult to administer Difficult to troubleshoot Expensive
List the four things to consider when choosing a topology.
Money Length of Cable Needed Future Growth Cable Type
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Unit 2- Networking and Lab Management--Network Topologies