Wide Area Networks

Question 1

Dedicated Leased Line

Answer 1

Logical connection that connects two sites through a service provider’s facility or a telephone company’s central office

Question 2

Circuit-switched Connection

Answer 2

Connection is brought up only when needed, similar to making a phone call

Question 3

Packet-switched Connection

Answer 3

Works like an always-on dedicated lease line; virtual

Question 4

SLA

Answer 4

an agreement used to guarantee a certain level of quality or speed you would require for your business’ case use

Question 5

What does the G mean in 5G?

Answer 5

Generation

Question 6

1G Specifications?

Answer 6

30 KHz
2 Kbps

Question 7

2G Specifications?

Answer 7

1800 MHz
14.4-64 Kbps

Question 8

3G Specifications?

Answer 8

1.6-2 Ghz
144 Kbps to 2 Mbps

Question 9

HSPA+?

Answer 9

up to 50 mbps

Question 10

4G Specifications?

Answer 10

2-8GHZ
100 Mbps to 1 Gbps

Question 11

5G Specifications

Answer 11

3 frequencies; low (600-850MHz; 30-250 Mbps), mid and high; 30-250 Mbps, 100-900, extremely high speed in Gbps

Question 12

GSM

Answer 12

Global System for Mobile Communications - a cell tech that takes the voice during a call and then converts it to digital data

Question 13

CDMA

Answer 13

Code Division Multiple Access - a cell tech that uses code division to split up the channel

Question 14

Microwave

Answer 14

Uses a beam of radio waves int he microwave frequency range to transmit information between two fixed locations

Question 15

Satellite

Answer 15

A method of using communication satellites located in space to connect a user to the internet

Question 16

High-Frequency Radio

Answer 16

Implementation varies from country to country based on frequencies

Question 17

Dedicated Lease Line

Answer 17

P2P connection between two sites; T1-T3 is an example

Question 18

CSU/DSU

Answer 18

Terminates the digital signals at the customer’s location

Question 19

T1 Speed

Answer 19

1.544 Mbps

Question 20

T3 Speed?

Answer 20

44.736 Mbps

Question 21

E1 Speed?

Answer 21

2.0 Mbps

Question 22

Point to Point Protocol

Answer 22

Commonly used Layer 2 protocol on dedicated leased lines to transmit multiple Layer 3 protocols (IP, IPX)

Question 23

Password Authentication Protocol

Answer 23

one way authentication between client and server; sent in the clear

Question 24

Challenge-Handshake Authentication Protocol (CHAP)

Answer 24

Performs one-way authentication using a three-way authentication; hashed

Question 25

ADSL speed?

Answer 25

8 down 1.544 up

Question 26

SDSL speed?

Answer 26

1.168 down and up

Question 27

VDSL speed?

Answer 27

52 down 12 up

Question 28

Cable Modems

Answer 28

uses a cable tv network that is made up of a hybrid fiber-coax distribution network

Question 29

What do HFC and DOCSIS have to do with?

Answer 29

Cable Modems

Question 30

POTS

Answer 30

runs on pstn; this is analog voice service; dial up

Question 31

Synchronous Optical Network (SONET)

Answer 31

really fast fiber optic connection

Question 32

MPLS

Answer 32

Allows traffic to be dynamically routed based on load conditions and path availability

Question 33

SD-WAN

Answer 33

software based wan architecture

Question 34

Multipoint Generic Routing Encapsulation (mGRE)

Answer 34

creates tunnels from one node to many nodes