Why This Cheat Sheet Matters for CLF-C02
This cheat sheet covers the most important Amazon EC2 concepts tested on the CLF-C02 (AWS Cloud Practitioner) certification exam. It contains 3 sections with 14 key points that you should memorize before exam day. Know EC2 as scalable virtual servers in AWS, including common instance use cases, basic pricing options, security groups, AMIs, and Auto Scaling. Use this as a quick-reference guide during your final review sessions.
3Sections
14Key Points
What EC2 Is
- EC2 provides resizable virtual servers called instances.
- Instances launch from Amazon Machine Images (AMIs).
- Security groups act as stateful virtual firewalls for instances.
- Elastic IP addresses provide static public IPv4 addresses.
- Auto Scaling helps match capacity to demand.
Pricing Options
- On-Demand: pay for compute with no long-term commitment.
- Reserved Instances: discount for a commitment to a specific instance configuration.
- Savings Plans: flexible commitment to a consistent amount of compute usage.
- Spot Instances: spare EC2 capacity at steep discounts, but can be interrupted.
- Dedicated Hosts: physical servers dedicated to one customer, often for licensing needs.
Exam Cues
- Unpredictable short-term workload: On-Demand.
- Steady predictable workload: Reserved Instances or Savings Plans.
- Fault-tolerant batch workload: Spot Instances.
- Bring-your-own server-bound software license: Dedicated Hosts.
Practice EC2 Questions
Put your knowledge to the test with practice questions.