4-2: Connecting to the WAN

Question 1

Which wireless technology provides Internet access through cellular networks?

Answer 1

LTE

Question 2

Which two technologies use the PSTN network to provide an Internet connection?

Answer 2

1. ISDN
2. dialup

Question 2

Which geographic scope requirement would be considered a distributed WAN scope?

Answer 2

many-to-many

Question 3

Which connectivity type uses traditional phone network?

Answer 3

DSL

Question 4

What is the name for devices and inside wiring that are located on the enterprise edge and connect to a carrier link?

Answer 4

CPE

Question 5

A customer needs a WAN virtual connection that provides high-speed, dedicated bandwidth between two sites. Which type of WAN connection would best fulfill this need?

Answer 5

Ethernet WAN

Question 6

Which WAN connectivity method would be used in a remote location where there are no service provider networks?

Answer 6

VSAT

Question 6

What is the name for devices that provide an interface for customers to connect to within the WAN cloud?

Answer 6

DCE

Question 8

Which connectivity type uses traditional video network?

Answer 8

Cable

Question 9

Which WAN technology establishes a dedicated constant point-to-point connection between two sites?

Answer 9

Leased lines

Question 10

Which connectivity method would be best for a corporate employee who works from home two days a week, but needs secure access to internal corporate databases?

Answer 10

VPN

Question 11

Which WAN technology is cell-based and well suited to carry voice and video traffic?

Answer 11

ATM

Question 12

What is the recommended technology to use over a public WAN infrastructure when a branch office is connected to the corporate site?

Answer 12

VPN

Question 13

What is the name for a physical connection from the customer to the service provider POP?

Answer 13

Local Loop

Question 14

What is the name for customer devices that pass the data from a customer network for transmission over the WAN?

Answer 14

DTE

Question 15

A small company with 10 employees uses a single LAN to share information between computers. Which type of connection to the Internet would be appropriate for this company?

Answer 15

A broadband service, such as DSL, through their local service provider

Question 16

What are two advantages of packet switching over circuit switching?

Answer 16

The communication costs are lower & Multiple pairs of nodes can communicate over the same network channel.

Question 16

Which connectivity type is slow access (upload speed is about one-tenth download speed)?

Answer 16

Satellite Internet

Question 17

What is a requirement of a connectionless packet-switched network?

Answer 17

Full addressing information must be carried in each data packet.

Question 18

Which network scenario will require the use of a WAN?

Answer 18

Employees need to connect to the corporate email server through a VPN while traveling.

Question 20

Which two devices are needed when a digital leased line is used to provide a connection between the customer and the service provider?

Answer 20

DSU & CSU

Question 21

What is a long distance fiber-optic media technology that supports both SONET and SDH, and assigns incoming optical signals to specific wavelengths of light?

Answer 21

DWDM

Question 22

What are two common high-bandwidth fiber-optic media standards?

Answer 22

SDH & SONET

Question 24

A home user lives within 10 miles (16 kilometers) of the Internet provider network. Which type of technology provides high-speed broadband service with wireless access for this home user?

Answer 24

WiMAX

Question 25

Which connectivity type set up by a city to provide free Internet access?

Answer 25

Municipal Wi-Fi