Network Architecture Concepts and Traffic Types

The video tutorial explains the three-tiered network architecture, commonly used in enterprise networks. It describes the core, distribution, and access layers, using a city layout as an analogy. The tutorial also covers network diagrams, redundancy, and introduces the collapsed core architecture for smaller organizations. Finally, it discusses traffic flow within data centers, differentiating between east-west and north-south traffic.

What is the primary function of the core layer in a three-tiered network architecture?

• To serve as the central point for resources

• To provide redundancy and connectivity

• To connect users directly to the network

• To manage external network traffic

In the analogy comparing network architecture to a city layout, what does the distribution layer represent?

• Downtown area

• Local roads

• Residential areas

• Highways

What is a key feature of the distribution layer in a three-tiered network architecture?

• It is located on the same floor as the users

• It houses all critical resources

• It provides redundancy and connectivity between core and access layers

• It connects directly to the internet

What is the main advantage of having multiple links between network layers?

• Increased network speed

• Reduced network costs

• Simplified network design

• Enhanced redundancy and reliability

What is a significant drawback of the collapsed core architecture?

• Complex troubleshooting

• Higher implementation costs

• Increased number of devices

• Lack of redundancy

How does the collapsed core architecture differ from the three-tiered architecture?

• It adds an extra layer for redundancy

• It merges the core and distribution layers

• It eliminates the distribution layer

• It combines the core and access layers

What characterizes east-west traffic in a data center?

• Traffic leaving to external networks

• Traffic within the same data center

• Traffic entering from the internet

• Traffic between different data centers

Why might north-south traffic have a different security posture than east-west traffic?

• It is limited to internal devices

• It is faster and more reliable

• It involves external sources

• It is always encrypted

What is a potential benefit of east-west traffic within a data center?

• Reduced security risks

• Improved external connectivity

• Simplified network design

• Faster response times

What type of traffic is described as moving between a data center and the internet?

• East-west traffic

• North-south traffic

• Local traffic

• Internal traffic