Information Technology Reference
In-Depth Information
Define Key Terms
Define the following key terms from this chapter, and check your answers in the glossary:
circuit switched, leased lines, packet and cell switched, hub-and-spoke (or star) topology,
partial-mesh topology, full-mesh topology, access VPN, intranet (site-to-site) VPN,
extranet VPN, IPsec, MPLS, Virtual Private LAN Services (VPLS), dial backup,
secondary WAN link, shadow PVC, small branch design, medium branch design,
large branch design
Q&A
The answers to these questions appear in Appendix A. For more practice with exam for-
mat questions, use the exam engine on the CD-ROM.
1. What type of WAN technology provides a dedicated connection from the service
provider?
a.
Circuit-switched data connection
b.
Leased lines
c.
Packet switched
d.
Cell switched
2. What type of topology suffers from a single point of failure?
a.
Hub-and-spoke topology
b.
Full-mesh topology
c.
Partial-mesh topology
d.
None of the above
3. What kind of topology requires that each site be connected to every other site in
the cloud?
a.
Hub-and-spoke topology
b.
Full-mesh topology
c.
Partial-mesh topology
d.
All of the above
4. Which two of the follow ing best describe WA N backup over the Internet deployments?
a.
Private WAN
b.
Redundancy for primary WAN connection
c.
VPLS
d.
Best-effort performance
 
 
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