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2. Explain and/or identify the advantages and disadvantages of WAN
connection types
LL advantages over FR
- Dedicated bandwidth
- Higher control
FR advantages over LL
- Lower cost
- Better for multiple branches
ISDN advantages over Asynchronous
- Higher speed
- Faster call setup
- Cheaper than leased lines
- Ability to run voice and data simultaneously
Asynchronous advantages over ISDN
- Lower cost
- Widely available
Asynchronous is useful for
- Backup connection
- Small remote site
- Short-term on-demand access
PSN is useful for
- Long connect times
- Large geographic distances
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Exam 2
SwitchingE04
SwitchingE06
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Legacy Topics
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4. List the driving factors and enabling technologies that characterize
access servers
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Driving factors
- Availability to access the network whenever needed.
- Flexibility to access the network through different devices and carriers.
- Mobility to access the network resources from any location.
Enabling technologies
- Faster modems facilitated with modem protocols that supports error correction and compression.
- Network protocols like SLIP, PPP, and ARAP allows for ease of connection and authentication for RAS services
- Security Facilities makes the access to campus or network
resources secured.
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Exam
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6. List and describe the access services provided by Cisco access
servers
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Access services provided by Cisco access servers
- Asynchronous routing services
- IP used on the Internet and in Microsoft NT and Unix networking environments.
- IPX used in Novell networking environments.
- Protocol translator
- Terminal server
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Exam
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