Complete 200-901 Cisco Materials

Cisco SD-WAN (Software-Defined Wide Area Network) is a solution designed to optimize and secure connectivity across various networks. It provides several advantages including cost reduction from MPLS (Multiprotocol Label Switching), improved application performance by leveraging multiple types of connections (broadband, LTE, etc.), and simplified operations through centralized management.

Cost Reduction from MPLS: Cisco SD-WAN allows enterprises to utilize less expensive broadband internet connections alongside MPLS. This hybrid approach reduces dependency on costly MPLS circuits, significantly lowering WAN costs.

Improved Application Performance: By using application-aware routing, SD-WAN directs traffic across the best available path, ensuring better performance for critical applications.

Simplified Operations: Cisco SD-WAN centralizes network management and policy implementation, simplifying network operations and reducing the complexity associated with traditional WANs.

References:

Cisco SD-WAN Documentation: Cisco SD-WAN

Latency refers to the delay between a client request and a server response. A large distance between a client device and a host server increases the latency due to the time it takes for data to travel over the network.

Latency: The time delay experienced in a system, particularly in networking, where it refers to the time taken for data to travel from the source to the destination.

Impact: High latency can result in slow response times, negatively impacting the performance of applications, especially those requiring real-time interactions.

References:

Network Latency Overview: Network Latency

Continuous Integration (CI) is a DevOps practice where developers frequently merge their code changes into a central repository. This practice aims to detect integration bugs as quickly as possible and improve the quality of the software. CI involves running automated tests and builds, ensuring that new code changes do not break the existing functionality. In the given scenario, the group of developers wants to deliver release-ready code and run automated tests frequently, which aligns with the principles of Continuous Integration.

References:

Atlassian - What is Continuous Integration?

Cisco DevNet Associate Certification Guide