Chapter 3 87-90 Flashcards
What is a point to point transmission?
when there is only one sender and one receiver
what is point to multipoint transmission?
one transmitter and multiple receivers
What is broadcast transmission?
A type of point to multipoint transmission: one transmitter, but undefined receivers
what is a non-broadcast point to multipoint transmission?
a single node issues transmissions to defined recipients
what is throughput?
throughput is a measure of how much data is transmitted during a period of time
What is capacity or bandwidth?
quantity of bits that can be transmitted per second
bps
bits per second
Kbps
kilobits per second 1000 bits
Mbps
1 000 000 mega bits per second
giga Gbps
1000 million bits per second
tera Tbps
1 million million bits per second
What is residential broadband bandwidth?
1.544 Mbps
What is a fast LAN
10 Gbps
what is the technical definition of bandwidth?
the difference between highest and lowest frequencies that a medium can transmit
What is baseband?
transmission of digital signals through DC direct current, electric / digital pulses
What is a limit of baseband?
baseband can only send one channel
What is ethernet?
an example of baseband found on many LANs. Only one device can transmit, but it happens so quickly you don’t notice
What is broadband?
signals are modulated as radio frequency RF analog waves that use different frequency ranges. Broadband does not encode information as digital pulses
What is broad band used for at home?
your cable transmission
How much more signal can broad band carry than baseband?
25 times more
what is a drawback of broadband?
it is more expensive b/c their has to be a channel for users transmission back.
What is a benefit of broadband?
it can span longer distances than baseband
