EC2

Question 1

5 EC2 instance types

Answer 1

• General purpose
• Compute optimised
• Memory optimised
• Accelerated computing
• Storage optimised

Question 2

Explain the instance naming convention, eg: m5.2xlarge

Answer 2

m: instance class
5: generation
2xlarge: size

Question 3

What are security groups

Answer 3

Security groups control how traffic is allowed into or out of our EC2 instances (like a firewall). They contain only allow rules.

Question 4

6 classic network ports

Answer 4

• 22 = SSH (Secure SHell)
• 21 = FTP (File Transfer Protocol)
• 22 = SFTP (Secure File Transfer Protocol)
• 80 = HTTP
  443 = HTTPS
  3389 = RDP (Remote Desktop Protocol)

Question 5

7 EC2 Purchasing Options

Answer 5

1, On-demand
2, Reserved (1 & 3 years)
3, Savings Plans (1 & 3 years)
4, Spot Instances
5, Dedicated Hosts
6, Dedicated Instances
7, Capacity Reservations