networking mediums Flashcards
the primarily way to carry a broadband Internet signal is to use
coaxial cable
a coaxial cable is composed of the following components
inner conductor (carries signal)
insulator
braided mesh conductor (functions as ground)
PVC sheath
advantages of using coaxial cable include
less susceptible to EMI
hard to damage
large infrastructure
disadvantages of using coaxial cable include
expensive
not flexible
using splitters will degrade signal quality
CCTV uses this grade of coaxial cabling
rg 59 less than 3 meters
Cable TV, satellite TV, and broadband cable Internet
rg 6
Cable TV, satellite TV, and broadband cable Internet uses this type of connecter
f type
CCTV, and legacy 10Base2 ethernet uses this type of connector
BNC
this cable used to support modern network standards is called
twisted pair
twisted pair wiring has the following standards
unshielded twisted pair (UTP)
shielded twisted pair (STP)
STP is composed of the following components
copper wire
plastic insulator
foil shield
PVC Sheath
UTP is composed of the following components
copper wire
plastic insulator
PVC Sheath
why are the wire twisted in a twisted pair
reduces electromagnetic interference and crosstalk.
this UTP connector is used to connect a modem to a phone jack
RJ 11
10 Mbps
this original UTP standard designed for the internet
cat 3
10 Mbps 16 Mhz
this UTP category supports 100 Mbps Ethernet
cat 5
at 100 MHz
this UTP category supports 1000 Mbps Ethernet
cat 5e
at 100 MHz
this UTP category supports 10 Gbps
Cat 6 at 250 MHZ and
Cat 6a at 500 MHz
this UTP category supports 10 Gbps and has the strictest specifications for crosstalk and noise.
cat 7
600 MHz
RJ 11 has ____ connectors and can support ____ pair of wires
4
2
RJ 45 has ____ connectors and can support ____ pair of wires
8
4
the twisted pair configuration that uses the same wire configuration on each connector end is called a
patch cable
Computers can connect directly to one another using this type of wire configuration
a crossover
fiber optic cabling is composed of which components
pvc shealth
protective layer
cladding
central core