The flashcards below were created by user
andresg770
on FreezingBlue Flashcards.
What do they call a hub?
Multi-port repeater
Why do they call a hub a multi port repeater?
Because traffic going into one port is repeated to every other port
Is a hub full or half duplex?
Half
How much can a hub communicate? Range
10 Mb/100 Mb
ASIC
Application Specific Integrated Circuit
What are switches and what do they do?
Switches are bridging done in a hardware called ASIC. Switches forward information and data directly to a data link address
Difference between a hub and a switch?
Hubs send information to everyone connected to it. Switches send information to a specific data link address
What device communicates from one IP subnet to another?
A router
What do routers base where they move their traffic?
It is based on the network address
What do they call routers that are inside switches?
Layer 3 switches
WAP
Wireless Access Point
What is a WAP?
It is a bridge from wired networks to a wireless network
How does a WAP make its forwarding decisions ?
It is based on the mac address
What is modem short for?
Modulator/ Demodulator
What does a modem do?
Converts analog sounds to digital signals
What do firewalls do and do modems have them?
They filter traffic by IP, Port number, or application.
Yes
VPN
Virtual Private Network
Can firewalls be routers?
Yes
What are punch panels?
They are a combination of punch down blocks and RJ45 connectors
Why are runs from desks in patch panels made once?
Because the wires will rarely move once they are in place
What are copper line drivers and extenders used for?
To extend the range of copper wire beyond normal ranges
What are copper line drivers and extenders used WITH?
Serial Links and copper ethernet
PLC
Power Line Communication
What is PLC marketed as?
EOP
EOP
Ethernet Over Power
What is the speed for PLC?
500 Mb / s
What is POE?
It is putting power over an ethernet connection
What is PLC
Putting a network connection over a power cable
What is built in power called for POE?
Endspan
What is in line power injector called for POE?
Midspan
Difference between a hub, router, and switch?
Hub sends data to everyone connected to it, A switch sends data locally in the network, and a router can send data from anywhere specifically to a network address