CCDA – Building a Modular Network

December 13, 2015 at 10:45 pm

Overview:

Enjoy this Nugget from the latest course here at CBT Nuggets! This Nugget attacks the subject of modularity when you are designing a modern network. This Nugget sets up the next CCDA Nugget in the course which is entitled Applying Modularity.

Modular network designs provide great enhancements when it comes to simplicity, ease of troubleshooting, and ease of understanding. This is hugely important, especially since networking today is more complex than ever. So anything we can do to make the network and its functions easier to understand, sounds like a great idea to me!

As you will see in this Nugget, Cisco proposes a nice Enterprise Design idea. It consists of four major areas – the Campus, the edge, the service provider and the remote module. What is really powerful is the fact that you can then divide these major sections into more detailed and modular sub sections. For example, the campus can be broken down into an access layer module, a distribution layer, and a core layer. Many networks today also feature a data center as part of this major network segment.

The CCDA Nugget:

Quick CCDA Nugget Review:

1. What does MTTR mean in computer networking?

a. Mean Time To Repair
b. Main Terminal To Register
c. Median Time To Respond
d. Modular Test To Record
2. What is not a major advantage to making a network modular?
a. Scalability
b. Resiliency
c. Ease of understanding
d. Cost
e. Ease of troubleshooting
3. What is another reference for a convergence domain?
a. Fault domain
b. Summarization boundary
c. Optimization segment
d. Prototype domain
4. What dynamic routing protocol features modularity in its implementation through the use of areas?
a. RIP
b. EIGRP
c. OSPF
d. RIPv2
5. Which is not a major module of the Cisco Enterprise Network model?
a. Campus
b. Edge
c. Remote
d. Service Provider
e. Data Center
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