Chapter 2: Cabling and Topology Flashcards
Topologies
Ways of connecting computers and other devices
Which are the historical topologies?
Bus, star, and ring
Bus topology
Single cable that connected all computers in a line
Ring topology
Connected all computers with a ring of cable
What does a bus network need at the end of the cables to prevent a signal from reflecting ?
Termination
What was the weakness of both bus and ring topologies?
The entire network stopped working if the cable broke at any point
Star topology (hub-and-spoke)
All computers on the network are connected to a central connection box
What was the benefit of the star topology ?
Offered fault taulerance
If a cable broke, all of the other computers could still communicate
Physical topology
How the cables physically look
Logical topology or signaling topology
How the signal travels electronically
Hybrid topology
Any form of networking technology that combines a physical and logical topology
Which reigns supreme? Star-bus or star-ring ?
Star-bus
Mesh topology
Wireless networks where every computer connects to every other computer via two or more routes
Partially meshed topology
At least two redundant connections
Every machine doesn’t connect to every other machine
Fully meshed topology
Every computer connects to every other computer
Network technology
Practical application of a topology and other critical tools that provides a method to get data from one computer to another on a network
What are the two distinct groups of cabling in the networking industry?
Fiber and copper
What are the two primary types of copper cabling ?
Coaxial and twisted pair
Coaxial cable
Central copper conductor wire surrounded by an insulating material which is surrounded by a braided metal shield
What is the outer mesh layer of the coaxial cable for ?
To shield the center wire from EMIs
Where are coaxial cables used ?
Connecting a computer to a cable modem. Also connects to satellite receiver and cable TV
Which connector screws on for a secure connection ?
F-type connector
Which is the primary calbing used today between RG-59 and RG-6?
RG-6 because it is more robust
Impedance
How much a cable resists the flow of electricity
How do you get both television and the internet from cable ?
Coaxial splitters
Twinaxial cable
Contains two central copper conductors. Substitute for fiber in short connections