NETWORK FUNDAMENTALS

Question 1

What is a data center?

Answer 1

It’s any facility that businesses and other organizations use to organize , process , store and disseminate large amounts of data

Question 2

What are the data center topology?

Answer 2

1 Three tiered hierarchy
2 Collapsed Core
3 Spine and Leaf
4 Traffic flows

Question 3

What are the components of the three-tiered layers?

Answer 3

1 Core
2 Distribution-aggregation layer
3 Access / Edge layer

Question 4

What is a collapsed core topology?

Answer 4

It is a network architecture where the core and the distribution layers are being merged into a single layer

Question 5

Define the spine and leaf architecture

Answer 5

It is an alternative type of network architecture that focuses on the communication within the data center itself

1 The spine connects switches in a full mesh topology
2 The leaf consists of all the access switches

Question 6

Define traffic flow

Answer 6

There 2 main types of traffic flow
1 North -South
2 East-West

Question 7

Define North-South traffic in a data center

Answer 7

It refers to the traffic that enters or leave the data center from a system residing outside the data center

Northbound traffic is the traffic exiting the data center
Southbound traffic refers to the traffic entering the data center

Question 8

Define East-West Traffic

Answer 8

It refers to data flow within the data center