Chapter 2 Cabling and Topology Flashcards
What is a Bus Topology
All of the host are connected by a single trunk cable , all host share the same bandwidth
Describe a ring topology
Allow host are connected in a ring like network topology where if one connection brakes the entire network fails
Describe the star topology
Multiple hosts are connected to a centralized box where frames are distributed by the central box, if one connection fails the other hosts are still able to receive frames
Describe the Mesh topology
Every hosts is connected to every other host, creates fault tolerance - if one connection fails you can still connect via the other cables, not good for wired scenarios but good for wireless ones
What does the Radial Grade (RG) determine for coaxial cables
Determines what type of coaxial cable it is, the thickness of the cable and conductors
What is the standard RG rating for coaxial cables today
RG 6
What is the resistance value for RG 6 in ohms
75 ohms
Describe the F - type coaxial cable
A twist or screw in on with a center pin
What is a BNC connector
Slotted twist on connector
What is a Twinaxial/twinax cable
A cable that has two inner conductors
Advantages of Coaxial Cable
- Highly resistant to electromagnetic interference
- Highly resistant to physical damage
Disadvantages of coaxial cables
inflexible
expensive
Why are network cables twisted around each other
To reduce EMI and crosstalk
What is the maximum distance of UTP cables
100 meters (325 feet)
What are the two standards that UTP cables come in
568A and 568 B
Describe Shielded Twisted Pair (STP)
Has a grounded outter copper shield around the bundle for added protection
What is the distance and Max Bandwidth of Cat 5 cabling
100 meters , 100 mbps - 1 Gbps
What is the distance and Max Bandwidth of Cat 5e
100 meters and 1 gbps (better EMI protection)
What is the distance and Max Bandwidth of Cat 6 cabling
55 meters and 10 gbps (only up to 55 meters with 10GBASE-T network)
What is the distance and Max Bandwidth of CAT 6a
100 meters and 10 Gbps (better EMI and crosstalk protection)
What is the distance and Max Bandwidth of CAT 7
100 meters and 10+ Gbps
What is the distance and Max Bandwidth of CAT 8
100 meters and 25 gbps (40gbps at 30 meters, 40gbase-t network)
What are the two types of fiber optic cabling
Multimode and single-mode
Describe multi-mode fiber optic cabling
Propagates lights, always has two cables, carries LED signals
Describe single-mode fiber optic cables
carries laser signals, goes long distances, two plugins
What color is multimode fiber optic cabling
orange
What colors is single mode fiber optic cabling
yellow
What is a st connector
Looks like a BNC connector, round connector
What is a SC connector
Square and punch them in and pull them out
What is a FC connector
Screws in kind of cable
What is a LC connector
Two square connector
What is a MT-RJ connector
connector that two connectors inside but looks like one
Describe a PC (Physical contact fiber optic cable end
A square shaped end of cable
Describe a UPC (Ultra Physical contact)
Rounded shaped fiber optic cable makes better light
Describe a APC (Angled Physical Contact)
Seven degree cut of fiber optic cabling
What is plenum rated cabling
cabling designed to be run through the plenum of a building, has the highest fire rating of any type of clading and has the highest fire resistant
What is riser-rated cabling
Not as resistant as plenum rated, used to stop fire from continuing through floors
What is pvc or non-plenum rated cabling
No fire protection at all
