Network Plus Chapter 11 – Flashcards
Unlock all answers in this set
Unlock answersquestion
False
answer
WANs connect nodes, such as workstations, servers, printers, and other devices, in a small geographical area on a single network.
question
True
answer
A bus topology WAN is often the best option for an organization with only a few sites and the capability to use dedicated circuits.
question
True
answer
The carrier's endpoint on a WAN is called the Data Communications Equipment (DCE).
question
False
answer
T-1 cables cannot utilize straight through cables using the same wiring scheme as LAN patch cables.
question
True
answer
In a PON setup, the system is considered passive because no repeaters or other devices intervene between the carrier and the customer.
question
ring topology
answer
In what type of topology is each site connected to two other sites, providing redundancy?
question
44.736
answer
What is the maximum throughput of a DS3 connection?
question
24
answer
How many channels exist in a T1 connection?
question
64 Kbps
answer
In an ISDN connection, what is the size throughput did a single B channel provide?
question
32
answer
In a PON system, an OLT contains a splitter that splits each port into how many logical channels?
question
53 bytes
answer
What is the size of an ATM packet?
question
You pay only for the bandwidth you've used.
answer
Which option below is an advantage of leasing a frame relay circuit over leasing a dedicated circuit?
question
ADSL
answer
What xDSL standard is the most popular?
question
ADSL
answer
What version of xDSL is the most popular?
question
CSU/DSU
answer
The DTE or endpoint device for a leased line is known as which device below?
question
OC-48
answer
What OC level is primarily used as a regional ISP backbone, and occasionally by very large hospitals, universities, or other major enterprises?
question
622.08 Mbps
answer
What is the maximum amount of throughput provided by an OC-12?
question
3.4 - 6.7 GHz
answer
What is the frequency range of the C-band that is used by satellites?
question
split horizon
answer
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?
question
MLPPP
answer
What protocol is commonly used to aggregate / bond T-1 / T-3 lines?
question
RJ-48
answer
When copper cabling is used to carry T-1 traffic, what kind of connector is used?
question
data link connection identifier
answer
When using frame relay, what is the name of the identifier that routers use to determine which circuit to send frames to?
question
DOCSIS 3
answer
Which version of DOCSIS provides 38 Mbps per channel and requires a minimum of 4 channels to be used?
question
1/4 mile
answer
The best 802.11n signal can travel approximately how far?
question
Carrier Ethernet Transport
answer
In metro settings, end-to-end, carrier-grade Ethernet networks can be established via what protocol?
question
Ethernet MAN
Metro Ethernet
answer
A MAN connection is also known as which two terms below?
question
GSM
CDMA
answer
What two competing standards exist for cell phone networks?
question
ATM
frame relay
answer
What two network protocols below rely on virtual circuits?
question
PVC
SVC
answer
Frame relay relies on what two different types of virtual circuits?
question
Layer 2
Layer 1
answer
At what two layers of the OSI model are LAN and WAN protocols likely to differ?
question
Data Terminal Console (DTC)
answer
The customer's endpoint device on the WAN is called the __________________.
question
T-1
answer
Multiplexing enables a single ____________ circuit to carry 24 channels, each capable of 64 Kbps throughput.
question
Optical Networking Unit (ONU)
answer
The ________________ distributes signals to multiple endpoints via fiber-optic cable, in the case of FTTP, or via copper or coax cable.
question
cell
answer
In ATM, a packet is called a _____________ and always consists of 48 bytes of data plus a 5 byte header.