Señor

1. Which statement is true about the differences between a WAN and a LAN?
WANs generally support higher bandwidth than LANs support.
A WAN link typically traverses shorter geographic distances than aLAN link traverses.
A WAN often relies on the services of carriers, such as telephone or cable companies, but a LAN does not.
All WAN implementations generally use the same Layer 2 protocol but thereare many accepted LAN Layer 2 protocols in use.
2. A U.S. company requires a WAN connection used only to transfer sales data from individual stores to the home office. All transfers will occur afterbusiness hours. The required bandwidth for this connection is estimated to be less than 38 kbps. Which type of connection requires the least investment for this company?
ATM
ISDN
analog dialup
T1Leased Line

3. What are two advantages of an analog PSTN WAN connection? (Choose two.)
low cost
availability
traffic encryption
available bandwidth
support for voice and video
4. Which WAN technologyuses a fixed payload of 48 bytes and is transported across both switched and permanent virtual circuits?
ATM
ISDN
Frame Relay
metro Ethernet
5. Which three WAN devices can be found in the cloud?(Choose three.)
ATM switches
core routers
CSU/DSU
Ethernet switches
Frame Relay switches
repeaters
6. Which term describes a device that will put data on the local loop?
DLCI
DTE
DCE
BRI
PRI
7. What isan advantage of packet-switched technology over circuit-switched technology?
Packet-switched networks are less susceptible to jitter than circuit-switched networks are.
Packet-switched networks canefficiently use multiple routes inside a service provider network.
Packet-switched networks do not require an expensive permanent connection to each endpoint.
Packet-switched networks usually experiencelower latency than circuit-switched networks experience.
8. Which statement is true about data connectivity between a customer and a service provider?
Normally the CSU/DSU is the designated...