AWS EC2 Purchasing Options and Instance Types

These flashcards cover key concepts related to AWS EC2, including purchasing options, instance types, and features.

Which EC2 Purchasing Option can provide the biggest discount but is not suitable for critical jobs or databases?

Spot Instances.

What should you use to control traffic in and out of EC2 instances?

Network Access Control List (NACL) and Security Groups.

How long can you reserve an EC2 Reserved Instance?

1 or 3 years.

What EC2 instance type should you choose for a High-Performance Computing application?

Compute Optimized.

Which EC2 Purchasing Option should you use for an application you plan to run continuously for 1 year?

Reserved Instances.

What is the best way to install software and update OS packages upon EC2 instance launch?

Use a bash script in EC2 User Data.

Which EC2 Instance Type should you choose for a critical application that uses an in-memory database?

Memory Optimized.

Which EC2 Instance Type should you choose for handling a high-frequency OLTP database?

Storage Optimized.

Can Security Groups be attached to more than one EC2 instance?

False.

Which EC2 Purchasing Option is suitable for applications with strict compliance requirements?

Dedicated Hosts.

Which EC2 Purchasing Option allows you to get visibility into physical cores and underlying network socket visibility?

Dedicated Hosts.

What is Spot Fleet?

A set of Spot Instances and optionally On-Demand Instances.