Principles of cloud computing

Question 1

provide a consistent, isolated execution environment for applications. They’re similar to VMs except they don’t require a guest operating system. Instead, the application and all its dependencies is packaged into a “container” and then a standard runtime environment is used to execute the app. This allows the container to start up in just a few seconds, because there’s no OS to boot and initialize. You only need the app to launch

Answer 1

Containers

Question 2

Lets you run application code without creating, configuring, or maintaining a server. The core idea is that your application is broken into separate functions that run when triggered by some action. This is ideal for automated tasks

Answer 2

Serverless computing

Question 3

also known as “scaling up”, is the process of adding resources to increase the power of an existing server. Some examples of vertical scaling are: adding more CPUs, or adding more memory.

Answer 3

Vertical scaling

Question 4

also known as “scaling out”, is the process of adding more servers that function together as one unit. For example, you have more than one server processing incoming requests.

Answer 4

Horizontal scaling

Question 5

is the ability to do things more efficiently or at a lower-cost per unit when operating at a larger scale. This cost advantage is an important benefit in cloud computing.

Answer 5

Economies of scale