Module 1-Lesson 1.2.2

Question 1

Integrated Services Digital Network (ISDN)

Answer 1

Provides means for a fully digital transmission (developed in the 1980’s)

Question 2

Basic Rate ISDN (BRI-ISDN)

Answer 2

Consists of three conductors that can carry only one frequency

Question 2

Two B channels, bearer (BRI-ISDN)

Answer 2

carries data, voice and video. Carries maximum of 64kbps

Question 3

One D channel, delta (BRI-ISDN)

Answer 3

Carries control signals at a maximum bandwidth of of 16kbps

Question 4

Primary Rate ISDN (PRI-ISDN)

Answer 4

consists of 23b channels and 1d channel, and a total data rate of 1.544mbps

Question 5

Broadband rate ISDN (B-ISDN)

Answer 5

designed to carry multiple frequencies and had a total data rate of 1.5mbps

Question 6

Digital Subscriber Line (DSL)

Answer 6

High speed internet access technology (designed to replace ISDN bc it is faster)

Question 7

Satellite

Answer 7

Dish receives dl signal; telephone lines transport uploaded signal

Question 8

Dial-Up Networking

Answer 8

Allows PCs and other network devices to connect to remote networks over standard telephone lines

Question 9

Remote Access Server

Answer 9

Accessed remotely by users not on a LAN

Question 10

Virtual Private Network (VPN)

Answer 10

makes it possible to create a private connection over a public network with no additional cost

Question 11

Channel Service Unit/Data Service Unit (CSU/DSU)

Answer 11

converts LAN signals into signals for the T1 line

Question 12

Edge Router

Answer 12

router at the entrance and exit of a WAN

Question 13

head-end

Answer 13

Local area distribution point

Question 14

International Telecommunication Union (ITU)

Answer 14

responsible for standardizing communication on and international level

Question 15

Layer 2 Forwarding (L2F)

Answer 15

protocol developed by cisco systems that is similar to PPTP

Question 16

local central office

Answer 16

location where a customer’s telephone lines connect to the switchgear

Question 17

local exchange carrier (LEC)

Answer 17

carrier made of one or more local central offices; also known as a competitive local exchange carrier (CLEC)

Question 18

local loop

Answer 18

section of wiring between customer premises and the local central office

Question 19

point of presence (POP)

Answer 19

point where a telephone company line connects to the subscriber line

Question 20

Remote Desktop Protocol (RDP)

Answer 20

Allows Windows computers to communicate directly with window based clients

Question 21

sunspots

Answer 21

energy storm that occurs at the surface from the sun

Question 22

Synchronous Optical Network (SONET)

Answer 22

similar to T carrier but SONET bases its tech on fiber optic cables

Question 23

trunk line

Answer 23

consists of hundreds of pairs of twisted pair cable or fiber optic cable