Multiplexing Flashcards
(T/F) to carry multiple signals, the medium is logically separated into smaller channels called subchannels
true
a form of transmission that allows multiple signals to travel simultaneously over on medium
multiplexing
What separates the combined signals and regenerates them in original form?
Demultiplexer
What divides a channel into multiple intervals of time for time slots
TDM (Time Division Multiplexing)
If a node has nothing to send, is there something sent in time slot?
No, nothing is sent in time slot
______ is a type of multiplexing which assigns a frequency band to each subchannel
FDM (Frequency Division Multiplexing)
How does the statistical multiplexing assign slots to nodes?
Statistical multiplexing assigns slots to nodes according to priority or need
Where does the node go if it doesn’t use its spot?
It gets reassigned to a node who needs it
What frequency band do voice communication use for a total bandwidth of 3100 Hz?
300-3400 Hz
What enables one fiber optic connection to carry multiple light signals simultaneously?
wavelength division multiplexing (WDM)
(T/F) using wavelength division multiplexing, a single fiber can transmit 20 million phone convos at once
True
what can you use to boost a signal’s strength between the multiplexer and demultiplexer?
an amplifier
What do fiber optic networks use?
WDM and DWD M (Dense wavelength division multiplexing)
What is DWDM typically used on?
High bandwidth or long distance WAN links, such as the connection between ISP and NSPs
