EC2 Fundamentals Flashcards
Create virtual representations of servers, storage, networks, and other physical machines
Virtualization
Provides near-native speed in comparison to full virtualization but requires modifications to the OS
Paravirtualization
the most popular of AWS’ offering Infrastructure as a Service (IaaS)
EC2 = Elastic Compute Cloud
Available Operating System for EC2
Linux, Windows or Mac OS
How much compute power & cores within an EC2 instance
CPU
How much random-access memory within an EC2 Instance
RAM
Network-Attached storage for EC2
Elastic Block Store (EBS) & Elastic File Store (EFS)
launching commands when a machine starts (Bootstrap Script) uses
EC2 User Data
Hardware attached storage
EC2 Instance Store
Who manages the data centers, physical facilities, and the hardware components of EC2?
AWS
If an AZ fails does your EC2 instance fail along with it? (AZ Resilient)
Yes
Provides information on condition of EC2 instance whether it is stopped, terminated or running
State
Do stopped instances still generate storage charges?
Yes
An EC2 instance is configured to launch into a single VPC subnet
True
Contains the OS, settings, and other applications that you will use in your server
Amazon Machine Images (AMI)
Fundamental of network security in AWS which control how traffic is allowed into or out of our EC2 Instances
Security Groups
Can security groups contain Deny rules?
No
Can security groups be attached to multiple instances?
Yes
Is a security locked to a region/VPC combination?
Yes
Can AMI work in a different region that is created in?
No
Can an AMI be copied between regions?
Yes
Scaling where you are adding more servers to the system.
Horizontal Scaling
Scaling that refers to increasing or decreasing the resources of a single server, instead of adding new servers to the system
Vertical Scaling
Connect to your EC2 instance within your browser
EC2 Instance Connect
