Technology Flashcards
1
Q
What is EC2?
A
service that allows you to rent and manage virtual servers in the cloud
not considered serverless
2
Q
How can you access EC2?
A
- AWS management console
- SSH
- EC2 instance Connect (EIC)
- AWS Systems manager via the web browser or shell
3
Q
Name the 5 different pricing models for EC2
A
Dedicated Hosts Reserved Instances On-Demand Plan - savings Spot
4
Q
On-demand pricing for EC2
A
- fixed price
- pay for what you use
- for unpredictable workloads that won’t run longer than a year
5
Q
Spot pricing for EC2
A
- Only if capacity is available
- workloads can be interrupted
- 90% off on-demand prices
- cheapest option
6
Q
Reserved Instance pricing for EC2
A
- reservation of instance type in a certain region for 1 or 3 years
- pay upfront to get discount 75% off on-demand
- for applications that require capacity reservation
- sign a contract
7
Q
Dedicated Hosts for EC2 pricing
A
- pay for physical server
- only for you
- bring your own server bound licenses like Microsoft or Oracle
- 70% off on-demand
- host is the physical server, instance runs on host
8
Q
Savings Plan for EC2
A
- commit to compute usage for 1 or 3 years
- lower bill across multiple compute services
- want flexibility
- no capacity or reservation
9
Q
What is Elastic Load Balancing
A
auto distributes your incoming application traffic across multiple EC2 instances
- think of it like a greeter directing a person to the next line.
- there are different types of load balances: classic, application, network, gateway