ec2 Flashcards
vm in the cloud used for compute capacity
EC2
pay by the hour. or second depending on the instance you run
On-Demand
Reserved Capacity for 1-3 years with up to 72% discount on hourly charge
Reserved
Purchase unused capacity at a discount of up to 90% Prices fluctuate with supply and demand
Spot
Physical EC2 server dedicated to your use
Dedicated
Used for applications with short-term spiky or unpredictable workloads that can’t be interrupted
On-Demand
Used for applications with steady state or predictable usage and applications that require reserved capacity
Reserved Instances
Has the option to change to a different reserved instance type of greater or equal value
Convertible Reserved instances
Launch instances within the time window you define to match your capacity reservation to a predictable recurring schedule
Scheduled RIs
Used when applications have flexible start and end time, or users have an urgent need for large amounts of additional computing capacity
Spot Instances
Used for compliance purposes where regulatory requirements that may not support multi-tenant virtualization
Dedicated Hosts
Used for Licensing that does not support multi-tenancy or cloud deployments
Dedicated Hosts
virtual firewalls for ec2 instances where everything is blocked by default
Security Groups
script that runs when the instance first runs that allows you to automate the installation of applications
Bootstrap Scripts
all inbound traffic is blocked by default, while all outbound traffic is allowed
Security Groups