AWS Quest 1 Level 1 Flashcards
What does AWS stand for?
Amazon Web Services
What is AWS?
a comprehensive Cloud Platform delivering on demand, online technology services
What is a datacenter?
a building or space dedicated to housing many computers
What are the benefits of a Cloud?
- reduced responsibility
- decentralized
- increased speed and agility
- we no longer have to guess capacity
- cost benefit
What is IaaS?
Infrastructure as a Service
What is PaaS?
Platform as a Service
What is SaaS?
Software as a Service
How does IaaS work?
AWS manages the physical hardware, you control everything else
All you get is the space and an Operating System
How does PaaS work?
Standard software is provided and configured as needed
You don’t have access to the infrastructure
How does SaaS work?
Pre-packaged software is provided as-is by vendors.
You get a completed software product, run and managed by the service provider.
What are the three types of Cloud Computing Deployment Models?
- On-Premises (Private Cloud)
- Cloud (Public Cloud)
- Hybrid (deployment between the Cloud and existing on-premises infrastructure
What is Cache?
It is a method of reducing load times.
Since a webpage has alot of information, some of it is stored locally on the hard drive. This allows the webpage to load faster on the next time it is used.
What does CDN stand for?
Content Delivery Network
What does a CDN do?
it caches content (such as images, videos, or webpages) in proxy servers that are located closer to end users than origin servers
What is a cache hit?
it is when a client device makes a request to the cache for content, and the cache has that content saved
what is a cache miss?
it is when the cache does not have the requested content
What does AWS offer for IaaS?
hardware and limited systems
What does AWS offer to PaaS?
hardware and additional services
What does AWS offer for SaaS
complete website care
What is “on-premises” cloud?
your home unit.
you own the hardware, software, you do the updates, you maintain security
What is “hybrid” cloud?
you rent space on a cloud.
you maintain all of your “on-premises” stuff, but now you have a little part of AWS to help you out
What is “cloud”?
the host handles most of your needs.
but you still own and run the web application
What is a “region”?
a separate geographical area
what is an Availability Zone?
AZs are multiple isolated locations within each region
what do Local Zones provide you?
LZs provide you the ability to place resources, such as compute and storage, in multiple locations closer to your end users
what are Edge Locations (or Points of Presence)?
these are locations between regions that provide as a Content Delivery Network (CDN), or caches, so that content is closer to users in areas that are far from regions
what are two advantages of placing your instances in multiple availability zones?
- your instance continues to be available in case of a failure in the primary Availability Zone
- you can use elastic IP addresses to make instances appear to come from the primary Availability Zone
where should you place your instances (two answers)?
- in Availability Zones that are closer to your customers or
- in zones that ensure that you are in compliance with the law
what is a Local Zone?
an extension of an AWS Region
LZs are placed in densely populated areas and are only available if you opt-in for them
what do Wavelength Zones enable?
enables developers to build applications that deliver ultra-low latencies to mobile devices and end users.
what is an AWS Outpost?
it is a fully managed service that extends AWS infrastructure, services, APIs, and tools to customer premises
it is a pool of AWS compute and storage capacity deployed at a customer site. AWS operates, monitors, and manages this capacity as part of an AWS region
what is a Network Line?
a telecommunications cable owned by a company
