Foundations of Cloud Computing Flashcards
Six reasons on why to switch to cloud providers.
- Global in minutes: applications are deployed around the world in minutes.
- Stop spending money maintaining data centres.
- Benefit from massive economies of scale.
- Increase speed and agility.
- Stop guessing capacity.
- Trade capital expenses for variable expenses.
What are the three main types of cloud computing models ?
- Software as a service (Saas).
- Infrastructure as a service (Iaas).
- Platform as a service (Paas).
Four benefits of cloud computing ?
- High availability.
- Durability.
- Agility.
- Elasticity.
What are the three common Cloud Deployment Models ?
- Private Cloud
- Public Cloud
- Hybrid Cloud
What are Capital Expenditures (CapEx) ?
Upfront purchases for fixed assets.
What are Operating Expenses (OpEx) ?
Funds used to run day-to-day operations.
What are AWS Regions and their characteristics ?
Regions are physical geographical locations that are fully isolated and independent. Each one is isolated, and resources are not automatically replicated across them.
What are AWS Availability Zones ?
AV’s consist of one or more physical data centres, each with redundant power, networking, security, and connectivity.
What are AWS Edge Locations ?
Edge Locations cache data for fast delivery to users.
What is latency ?
Latency is the time it takes between the users request and the response.
What is Agility ?
When the available services help you innovate faster, giving you speed to market.
What is Elasticity ?
The ability to grow or shrink what you need in terms of capacity based on demand.
What is Durability ?
Long term data protection, meaning data won’t be corrupted.
What is High Availability ?
Available systems designed to operate continuously without failure. This is done by reducing/eliminating loss of service.
What is the Root User and when is it created ?
The Root User is the first account created when you sign up to AWS for the first time. It has all access rights and controls other users.
