Foundations

Question 1

advantages of cloud computing

Answer 1

• go global in minutes
• stop spending & maintaining data centers
• lower prices the bigger you get (economies of scale)
• increased speed and agility/faster time to market
• stop guessing about capacity
• trade capital expenses for variable expenses

Question 2

benefits of cloud computing

Answer 2

• high availability
• elasticity
• agility
• durability

Question 3

availability

Answer 3

• always up and running

- avoiding loss of service by managing failures

Question 4

elasticity

Answer 4

• capacity can grow and shrink on demand

- provision only what you need

Question 5

agility

Answer 5

• faster speed to market

Question 6

durability

Answer 6

• guarantees that your data will always be there when you need it

Question 7

IaaS

Answer 7

Infrastructure as a Service
- fundamental building blocks that can be rented
Ex: web hosting, AWS

Question 8

SaaS

Answer 8

Software as a Service
- a complete application offered to users on demand
Ex: email provider

Question 9

PaaS

Answer 9

Platform as a Service
- develop software using web-based tools and not worrying about underlying infrastructure
Ex: storefront website

Question 10

3 cloud computing models

Answer 10

• IaaS
• PaaS
• SaaS

Question 11

Private Cloud

Answer 11

• “on prem”
• doesn’t offer advantages of cloud computing
• increased level of security

Question 12

Public Cloud

Answer 12

• traditional AWS deployment model

Question 13

Hybrid Cloud

Answer 13

• data lives on-prem
• software application that reads data is in the public cloud
• supported by Direct Connect

Question 14

region

Answer 14

fully isolated geographic location groupings that cannot impact each other
- resource and service-specific

Question 15

availability zone

Answer 15

one or more physically separated data centers, each with:

- redundant power, networking, and connectivity, different power grids

Question 16

how are AZs connected within a single region?

Answer 16

via low-latency links

Question 17

what do multi-AZ deployments provide?

Answer 17

high-availability

Question 18

edge locations

Answer 18

mini data centers used to cache content

Question 19

what do edge locations do?

Answer 19

reduce latency

Question 20

latency

Answer 20

the time that passes between a user request and the resulting response

• low = fast loading
• high = slow loading

Question 21

CLI

Answer 21

Command-Line Interface

Question 22

AWS Marketplace

Answer 22

The AWS Marketplace enables qualified partners to market and sell their software to AWS Customers. AWS Marketplace is an online software store that helps customers find, buy, and immediately start using the software and services that run on AWS.

Question 23

AWS Partner Network (APN)

Answer 23

A global community of approved partners that offer software solutions and consulting services for AWS.