642 Appendix A: Answers to Review Questions
Protocol support.
Manageability.
6
Name two methods of redundancy that are available to the CCDP.
Backup hardware.
Fault-tolerant media.
7
Where should redundancy be prioritized?
The primary focus of redundancy should be on the WAN link. Configure the WAN as a
top priority for maximum availability.
8
Name a Cisco router that can be employed at each layer of the hierarchical model.
Core--Cisco 7000 and 12000 series routers.
Distribution--Cisco 4000 series routers.
Access--Cisco 1000 and 2500 series routers.
9
Explain the processes involved in gathering information.
Data gathering involves defining the problem. The CCDP should learn about the corporate
structure and the decision-making process. Gathering data includes discovering what
applications are being used and what plans exist in the future for change.
10
What layer acts as the intermediate layer in the hierarchical model?
The distribution layer is the intermediate layer between the core layer and the access layer.
The distribution layer is the recommended place for access lists and security functions.
11
What tools can be used to estimate network performance?
Network simulation and modeling tools are available to estimate network performance.
12
What are two methods of reducing bandwidth on a remote access link?
Snapshot routing and static routing.
13
True or false: After implementing the network, the CCDP should consider the task
complete.
False. After the implementation phase, the network must be monitored. During the
monitoring phase, the customer should concur that the network is functioning according
to design specifications.
14
Why is a partial mesh more cost-effective than a full-mesh design?
The partial mesh design allows for fewer dedicated links, thus reducing the recurring
circuit costs. The full-mesh design requires all-to-all connectivity. As the number of links
increases, a full-mesh design can become cost-prohibitive.
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