Cloud Concepts

Question 1

What are the 6 advantages of cloud computing

Answer 1

Go global in minutes

Stop spending money running and maintaining data centers

Benefit from massive economies of scale

Increase speed and agility

Stop guessing capacity

Trade capital expense for variable expense

Question 2

What is high availability?

Answer 2

Highly available systems are designed to operate continuously without failure for a long time.

These systems avoid loss of service by reducing or managing failures.

Question 3

What is elasticity?

Answer 3

With elasticity, you don’t have to plan ahead of time how much capacity you need. You can provision only what you need, and then grow and shrink based on demand.

Question 4

What is agility?

Answer 4

The cloud gives you increased agility. All the services you have access to help you innovate faster, giving you speed to market.

Question 5

What is durability?

Answer 5

Durability is all about long-term data protection. This means our data will remain intact without corruption.

Question 6

What are Capital Expenditures (CapEx)?

Answer 6

Upfront purchases toward fixed assets.

Question 7

What are Operating Expenses (OpEx)?

Answer 7

Funds used to run day-to-day operations.

Question 8

Cloud Computing Models

Infrastructure as a Service (IaaS)

Answer 8

Fundamental building blocks that can be rented.

Question 9

Cloud Computing Models

Software as a Service (SaaS)

Answer 9

Using a complete application, on demand, that someone offers to users.

Question 10

Cloud Computing Models

Platform as a Service (PaaS

Answer 10

Develop software using web-based tools without worrying about the underlying infrastructure.

Question 11

What are the 3 cloud deployment models?

Answer 11

Private Cloud

Public Cloud

Hybrid Cloud

Question 12

What is a Region?

Answer 12

A physical location in the world that contains availability zones

Fully independent and isolated - If one Region is impacted, the others will not be.

Resource and service specific - Regions are isolated, and resources aren’t automatically replicated across them.

Question 13

What is an Availability Zone (AZ)?

Answer 13

A collection of one or more data centers. Consist of one ore more physically separated data centers, each with redundant power, networking, and connectivity, housed in separate facilities.

An AZ is associated with a single Region

Physically separated

Connected through low-latency links

Fault tolerant

Allows for high availability

Question 14

What is an Edge Location?

Answer 14

Used to cache content for speedy delivery - Amazon Cloudfront