Now that you completed this chapter, you
should have a firm understanding of the following:
- A WAN is used to interconnect LANs that are separated by a large
geographic distance.
- A WAN provides a data path between routers and the LANs that
each router supports.
- Many types of WAN services are available to the WAN subscriber,
which must know how to interface to the WAN provider's service.
- WAN devices include WAN switches, modems, and ISDN TAs.
- A WAN mainly operates at the OSI physical and data link layers.
- WAN encapsulation formats include PPP and HDLC encapsulation.
- WAN link options include dedicated lines such as point-to-point
links, packet-switched connections such as Frame Relay, and
circuit-switched connections such as DDR and ISDN.
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Threaded
Case
Study |
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Washington
Project School District Project Task: WANs
In
this chapter, you have learned about the WAN
technologies that enable you to interconnect all
the individual Washington School District sites
into the WAN topology.
You
need to complete the following tasks:
- Select
WAN services for the district WAN-to-site, WAN
core-to-WAN core, and WAN-to-Internet
connections.
- Determine
the costs and the range of WAN services.
- Begin
Documenting the WAN design.
- Apply
the CCNA Certification Exam Learning
Objectives to your specific design. This will
require a paragraph on how the learning
objectives relate to your design. Learning
objectives can be grouped together for the
purpose of explanation. In this way, you will
be studying for their CCNA Certification Exam
as you work through the case study.
CCNA
Certification Exam Learning Objectives
(*** are explicit CCNA Exam objectives; unmarked
are knowledge assumed by the exam):
WANs
- Differentiate
between the following WAN services: Frame
Relay, ISDN/LAPD, HDLC, and PPP.***
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