B3P1 - Access and core networks

Question 1

access network (AN)

Answer 1

connects end-users’ equipment to CN;

Question 2

aggregation

Answer 2

the combining of AN traffic onto CN;

Question 3

asynchronous transfer mode (ATM)

Answer 3

a protocol using virtualPaths and labelSwitching;

Question 4

backhaul

Answer 4

the net between the CN and ANs;

Question 5

broadband remote access server (BRAS)

Answer 5

aggregates dataPackets;

Question 6

circuit switching (commsPromise)

Answer 6

guaranteeing a comm resource;

Question 7

consumer premises equipment (CPE)

Answer 7

subscriber devices for interfacing with AN;

Question 8

content delivery network (CDN)

Answer 8

where servers are based at network edge to deliver multimedia content;

Question 9

control plane (protocol)

Answer 9

signalling protocols;

Question 10

core network (CN)

Answer 10

the high-speed comms trunk network served by ANs;

Question 11

digital subscriber line access multiplexer (DSLAM)

Answer 11

a telephoneExchange device that multiplexes signals from ANs onto the CN;

Question 12

digital subscriber line (DSL)

Answer 12

tech providing broadband over AN;

Question 13

frame

Answer 13

the OSI Layer 2 data unit [PDNTSPA];

Question 14

frequency division multiplexing (FDM)

Answer 14

where carrierWaves of differering frequency rep each signal;

Question 15

host

Answer 15

the source-destination device in a network;

Question 16

in-band signalling

Answer 16

where signal shares channel with userTraffic;

Question 17

label edge router (LER) / MPLS-interface

Answer 17

the interface based at perimeter of a multiprotocol-label-switching network;

Question 18

label switching

Answer 18

where routePaths are numerically labelled;

Question 19

label-switching router (LSR)

Answer 19

a multiprotocol-label-switching-network router;

Question 20

local area network (LAN) switching

Answer 20

the forwardingProtocols for frames [Layer2-OSI];

Question 21

logical path

Answer 21

where all data on path is received in the correctOrder and onTime;

Question 22

multiprotocol label switching (MPLS)

Answer 22

= labelSwitchingRouters + labelEdgeRouters

Question 23

multi-service access node (MSAN)

Answer 23

telephoneExchange-roadSideCabinet interface between AN and CN;

Question 24

open systems interconnection (OSI) model

Answer 24

PDN TSPA;

Question 25

out-of-band signalling

Answer 25

where signal uses separate channel from userTraffic;

Question 26

public switched telecommunications network (PSTN)

Answer 26

a national infrastructure for data-telephony transmission;

Question 27

signalling

Answer 27

dataExchanges for networkManagement;

Question 28

synchronous digital hierarchy (SDH)

Answer 28

multiplexes synchronous dataStreams onto CN;

Question 29

synchronous optical network (SONET)

Answer 29

opticalVersion of synchronous-digital-hierarchy;

Question 30

synchronous transport module

Answer 30

the fundamental frame of synchronous-digital-hierarchy;

Question 31

TCP/IP model (subclass of OSI model)

Answer 31

PDN TSPA:
PD = networkAccess
N = ---
T = transport
SPA = application

Question 32

time division multiplexing (TDM)

Answer 32

where each signal is allocated a timeSlot in a recurringSequence;

Question 33

tunnel

Answer 33

a secure designated path between endPoints;

Question 34

user equipment (UE)

Answer 34

devices interfacing with the mobileAccessNetwork;

Question 35

virtual private network (VPN)

Answer 35

uses secureProtocols over the insecure IPconnection;