Architecture Questions

Question 1

Explanation

For campus designs requiring simplified configuration, common end-to-end troubleshooting tools, and the fastest convergence, a design using Layer 3 switches in the access layer (routed access) in combination with Layer 3 switching at the distribution layer and core layers provides the most rapid convergence of data and control plane traffic flows.

Reference: https://www.cisco.com/c/en/us/td/docs/solutions/CVD/Campus/cisco-sda-design-guide.html#Layer_3_Routed_Access_Introduction

Campus fabric runs over arbitrary topologies:
+ Traditional 3-tier hierarchical network
+ Collapsed core/aggregation designs
+ Routed access
+ U-topology

Ideal design is routed access –allows fabric to extend to very edge of campus network

Reference: https://www.ciscolive.com/c/dam/r/ciscolive/us/docs/2017/pdf/BRKCRS-2812.pdf

From above references, we see that campus infrastructure does not include two-tier topology.

Question 2

Question 3

Explanation

The difference between on-premise and cloud is essentially where this hardware and software resides. On-premise means that a company keeps all of this IT environment onsite either managed by themselves or a third-party. Cloud means that it is housed offsite with someone else responsible for monitoring and maintaining it.

Question 4

Question 5

Explanation

Stateful Switchover (SSO) provides protection for network edge devices with dual Route Processors (RPs) that represent a single point of failure in the network design, and where an outage might result in loss of service for customers.

Reference: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst6500/ios/12-2SY/configuration/guide/sy_swcg/stateful_switchover.html