Foundations

Question 1

Benefits of cloud computing

Answer 1

high availability
elasticity
agility
durability

Question 2

Define CapEx and OpEX

Answer 2

CapEx: capital expenditures: equipment, property, computers, software
OpEx: operating expenditures: employee salaries, rent, marketing – the day to day expenses

Question 3

3 different service models

Answer 3

IaaS: building blocks to rent
SaaS: complete product application
PaaS: tools that are typically used by developers to build applications

Infrastructure, Software, Platform

Question 4

3 cloud deployment models

Answer 4

Private or on-premises: no advantages of cloud computing; good level of security and infrastructure isn’t shared

Public: you aren’t responsible for the physical hardware, benefit from cloud

Hybrid: combo; companies have their own data center, but the data is read using AWS like DIRECT CONNECT

Question 5

Are resources tied by a…

1. AZ
2. Region
3. Edge Location
4. Data Center

Answer 5

Most resources are tired to a specific REGION***

Question 6

Define Region, AZ, and Edge Location

Answer 6

Region:

• resource and service specific
• spread out, independent, and isolated from other regions for higher availability

AZ:

• has multiple data centers
• associated with a single region; doesn’t span
• high availability
• used to launch applications

Edge Locations

• mini data center
• reduce latency by placing content closer to users
• speeds up delivery
• not used to launch resources
• Cache content through CLOUDFRONT

Question 7

What is the root user?

Answer 7

the owner of the account created when you initially sign up for the account

• need for deleting account
• should always have MFA
• access can never be restricted

Question 8

How can you access the AWS management console?

Answer 8

CLI - programmatic access

Software Development Kit (SDK) - application code to access AWS services from popular languages

Question 9

Which resource types are delivered on-demand via cloud computing with pay-as-you-go pricing?

Answer 9

• storage
• compute
• database

Question 10

Which of the 6 advantages of cloud computing can often allow you to achieve a lower cost than you would get if you built your own infrastructure?

Answer 10

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 11

Which of the following are benefits provided by cloud computing?

Answer 11

It offers easy access to servers, storage, and other services over the internet.

It allows on-demand spinning up of needed resources (such as virtual machines).