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9 Cards in this Set

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What does CCNA stand for?

Cisco Certified Network Associate

What are the Network Characteristics?

Topology


Speed


Cost


Security


Availability


Scalability


Reliability

Top Speed Can Set A Speed Record

What does OSI Model stand for?

Open Systems Interconnect Model

What is the OSI Model

It's a general purpose framework that characterizes and standardizes how computers communicate with each other over a network



Its seven-layered approach to data transmission divides the operations into specifically related groups of actions in each layer



A layer serves the layer above it and is served by the layer below it.

What are the 7 layers of OSI reference

7 Application


6 Presentation


5 Session


4 Transport


3 Network


2 Data-Link


1 Physical

Please Don't Throw Sausage Pizza Away

What is the first benefit of the OSI Model

Engineers do not need to design a technology to work end to end from top to bottom of the model. They can focus on their layer of expertise and make sure they comply with the standards for the layer.

What is the second benefit of the OSI Model

Open standards and multi-vendor interoperability

What is the third benefit of the OSI Model

If you're an application developer, you can just focus on the top 3 layers, the lower layers are the domain of network engineers.

What is the fourth benefit of the OSI Model

Troubleshooting is easier because you can analyze a problem in a logical fashion layer by layer.