DataComm Ch14 Quiz

This uses a 53 byte cell size to send data.
X.25
Frame relay
ATM
MPLS
This technology uses PPPoE to authenticate.
Dial-up
ISDN
Cable
DSL
This type of DSL has faster download as compared to upload speeds.
SDSL
ADSL
VDSL
This device is used to combine multiple signals into one.
Modem
Router
Multiplexer
CSU/DSU
This protocol is used to transfer signals over the backbone of the Internet over fiber.
T1
E1
OC
SONET
DSL consists of all the following advantages over dial-up except for ___________ .
Speed
Throughput
End-user security
Which protocol allows for greater throughput by assigning each signal a separate wavelength?
DWDM
OC-3
T1
ATM
Which device allows for a digital signal to be sent across spans which are outside the physical limits of the wire?
Amplifier
Repeater
Multiplexer
Exchanger
 
This device is used to change a digital signal to an analog signal and vice versa.
Repeater
Switch
Modem
Router
You need to provide at least 50 Mbps to your office. What is the minimum one-line solution you could use?
T1
T3
OC1
OC3
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