network devices Flashcards
VoIP
voice over internet protocol
access control devices
card reader
cctv
closed circuit television
scada
supervisory control and data acquisition system
multi port repeater
traffic going in one port to every other port
osi layer 1
Hub
switch with 2 - 4 ports
decisions in software
osi layer 2
bridge
makings decisions on mac address
does do in hardware
layer 2 device sometimes layer 3
can have 100s of ports
switch
layer 3 device
routes traffic between ip subnets
connects different network types
router
not a router a single device
extends wired network into wireless
layer 2 device
access point
broadband
different traffic types
data on cable
cable modem
digital subscriber line
telephone lines
download speeds faster then upload
dsl modem
receives signal
regenerates
resends
doesn’t make discissions
boosts
repeater
osi layer 1
extends copper over long distance
copper to fiber
fiber to copper
always powered
converting media
a switch and router
layer 3 switch
layer 2 router
1 device
layer 3 capable switch
centralized management of access points
used to deploy new points
monitor and secure
wireless lan controller
