4-2: Connecting to the WAN Flashcards
Which wireless technology provides Internet access through cellular networks?
LTE
Which two technologies use the PSTN network to provide an Internet connection?
- ISDN
- dialup
Which geographic scope requirement would be considered a distributed WAN scope?
many-to-many
Which connectivity type uses traditional phone network?
DSL
What is the name for devices and inside wiring that are located on the enterprise edge and connect to a carrier link?
CPE
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?
Ethernet WAN
Which WAN connectivity method would be used in a remote location where there are no service provider networks?
VSAT
What is the name for devices that provide an interface for customers to connect to within the WAN cloud?
DCE
Which connectivity type uses traditional video network?
Cable
Which WAN technology establishes a dedicated constant point-to-point connection between two sites?
Leased lines
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?
VPN
Which WAN technology is cell-based and well suited to carry voice and video traffic?
ATM
What is the recommended technology to use over a public WAN infrastructure when a branch office is connected to the corporate site?
VPN
What is the name for a physical connection from the customer to the service provider POP?
Local Loop
What is the name for customer devices that pass the data from a customer network for transmission over the WAN?
DTE
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?
A broadband service, such as DSL, through their local service provider
What are two advantages of packet switching over circuit switching?
The communication costs are lower & Multiple pairs of nodes can communicate over the same network channel.
Which connectivity type is slow access (upload speed is about one-tenth download speed)?
Satellite Internet
What is a requirement of a connectionless packet-switched network?
Full addressing information must be carried in each data packet.
Which network scenario will require the use of a WAN?
Employees need to connect to the corporate email server through a VPN while traveling.
Which two devices are needed when a digital leased line is used to provide a connection between the customer and the service provider?
DSU & CSU
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?
DWDM
What are two common high-bandwidth fiber-optic media standards?
SDH & SONET
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?
WiMAX
Which connectivity type set up by a city to provide free Internet access?
Municipal Wi-Fi
