Networking Chapter 11

10 September 2022
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20 test answers

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question
What protocol is commonly used to aggregate / bond T-1 / T-3 lines?
answer
MLPPP
question
Which version of DOCSIS provides 38 Mbps per channel and requires a minimum of 4 channels to be used?
answer
​DOCSIS 3
question
​What is the frequency range of the C-band that is used by satellites?
answer
​3.4 - 6.7 GHz
question
What is the maximum amount of throughput provided by an OC-12?
answer
​622.08 Mbps
question
In metro settings, end-to-end, carrier-grade Ethernet networks can be established via what protocol?
answer
Carrier Ethernet Transport
question
When using frame relay, what is the name of the identifier that routers use to determine which circuit to send frames to?
answer
data link connection identifier
question
What is the maximum throughput of a DS3 connection?​
answer
44.736
question
The best 802.11n signal can travel approximately how far?
answer
1/4 mile
question
What xDSL standard is the most popular?​
answer
ADSL
question
What OC level is primarily used as a regional ISP backbone, and occasionally by very large hospitals, universities, or other major enterprises?​
answer
OC-48
question
The DTE or endpoint device for a leased line is known as which device below?
answer
​CSU/DSU
question
How many channels exist in a T1 connection?​
answer
24
question
What Layer 3 technology is employed by distance-vector routing protocols in which a router knows which of its interfaces a routing update and will not retransmit, or advertise, that same update on the same interface?
answer
split horizon
question
When copper cabling is used to carry T-1 traffic, what kind of connector is used?
answer
RJ-48
question
Which option below is an advantage of leasing a frame relay circuit over leasing a dedicated circuit?
answer
You pay only for the bandwidth you've used.
question
What is the size of an ATM packet?​
answer
53 bytes
question
In a PON system, an OLT contains a splitter that splits each port into how many logical channels?​
answer
32
question
What xDSL version provides a maximum throughput of 24 Mbps downstream and 3.3 Mbps upstream?
answer
ADSL2+M
question
In an ISDN connection, what is the size throughput did a single B channel provide?​
answer
​64 Kbps
question
In what type of topology is each site connected to two other sites, ​providing redundancy?
answer
ring topology