AWS Cloud Practitioner

Agility in the AWS Cloud value proposition

- the ability to add and remove new services quickly and easily

What are the 6 benefits of cloud computing

1. Trade upfront expense for variable expense 2. Stop spending money to run and maintain data centers 3. Stop guessing capacity 4. Benefit from massive economies of scale 5. Increase speed and agility 6. Go global in minutes

give an example of a time you'd use hybrid deployment

1. you have legacy applications that are better maintained on premises, or government regulations require your business to keep certain records on premises. 2. suppose that a company wants to use cloud services that can automate batch data processing and analytics. However, the company has several legacy applications that are more suitable on premises and will not be migrated to the cloud. With a hybrid deployment, the company would be able to keep the legacy applications on premises while benefiting from the data and analytics services that run in the cloud.

wht is the difference between elasticity and agility in the aws cloud value proposition

Agility is the ability to scale quickly. If that scaling is happening automatically, then we are talking about Elasticity. All of those terms directly explain the system's ability to change resources at will. Scalability: The ability to increase or decrease resources for any given workload

Why is economy of scale a value concept of the AWS Cloud value proposition?

Economy of scale is the buying power and ability to offer services at a low cost to the consumer

What are the key concepts of the AWS Cloud Value Proposition?

Elasticity, agility, Economy of scale, & High availability

What is another name for on-premises deployment

Private cloud deployment

What is the client-server model

The relationship between two computers in which the client makes a service request from the server. For example, suppose that a client makes a request for a news article, the score in an online game, or a funny video. The server evaluates the details of this request and fulfills it by returning the information to the client.

what does it mean to trade upfront expense for variable expense

Upfront expense refers to data centers, physical servers, and other resources that you would need to invest in before using them. Variable expense means you only pay for computing resources you consume instead of investing heavily in data centers and servers before you know how you're going to use them. By taking a cloud computing approach that offers the benefit of variable expense, companies can implement innovative solutions while saving on costs.

What is a hybrid deployment

a hybrid deployment connects infrastructure and applications between cloud-based resources and existing resources that are not in the cloud. cloud-based resources are connected to on-premises infrastructure.

Give an example of elasticity in the AWS Cloud value proposition

ability to horizontally scale amazon EC2 instances based on demand

Which 3 cloud deployment models are offered by AWS Cloud

cloud-based, hybrid, and on-premises

High availability in the AWS Cloud value proposition

focuses on the resiliency of your architecture and avoiding single points of failure

What is cloud computing?

one-demand delvery of IT resources and application through the internet with pay-as-you-go pricing

What is elasticity in the aws cloud value proposition

the ability to acquire resources as you need them and release resources when you no longer need them.