W1 Flashcards
7 DevOps stages
Plan, Code, Build, Test, Release, Deploy, Operate, Monitor
3 Characteristics of CC
On-demand self-service,
Broad network access,
Elastic resource pooling,
Rapid elasticity,
Measured service,
Outsourcing of hardware and software, Different models of delivery and computing Highly interactive web applications and services Large on-demand resources and data centres
Benefits of CC
Reduced Investments & cost, increased scalability, increased availability and reliability
Risks of CC
Increased Security & Vulnerabilities, Reduced Governance Control, Limited portability between cloud providers,
Multi-regional compliance and Legal Issues
What is virtualisation
Is the illusion of creating or having two or more entities where the is only one physical entity in the system. In the context of (cloud) computing, virtualisation techniques can be used to make one compute node (i.e., one server) to appear as multiple. Similarly, a computer can run multiple operating systems simultaneously. Other use cases: Virtual Private Networks (VPNs) and Virtual Storage