EC2 Fundamentals

Question 1

Define EC

Answer 1

Elastic Compute Cloud

Question 2

What is EC2 used for?

Answer 2

To create infrastructure as a service

Question 3

List EC2 Capabilities (x4)

Answer 3

• Renting Virtual Machines (EC2)
• Storing data on virtual drives (EBS)
• Distribute loads across machines (ELB)
• Scaling the service using an auto-scaling group (ASG)

Question 4

List EC2 sizing and configuration options (x7)

Answer 4

• Operating System
• Computer Power and Cores (CPU)
• The amount of RAM
• Storage Space
• Network Card
• Firewall Rules
• Bootstrap Script

Question 5

Define EC2 User Data

Answer 5

Code that only runs once at the first start of an instance and runs with the root user rights

Question 6

List common uses of User Data (x3)

Answer 6

• Installing updates
• Installing Software
• Downloading common files from the internet

Question 7

Define EC2 Instance Types Naming Convention

Answer 7

instance type, generation, dot followed by size within the instance type

Question 8

List EC2 Instance Types (x4)

Answer 8

• General Purpose
• Compute Optimised
• Memory Optimised
• Storage Optimised

Question 9

When is it good to use a General Purpose Instance Type?

Answer 9

Good for diverse workloads e.g. web servers, code repositories

Question 10

When is it good to use a Compute Optimised Instance Type?

Answer 10

Great for compute-intensive tasks that require high-performance.

Question 11

When is it good to use a Memory Optimised Instance Type?

Answer 11

Fast performance for workloads that process large data sets in memory.

Question 12

When is it good to use a Storage Optimised Instance Type?

Answer 12

Great for storage-intensive tasks that require high, sequential read and write access to large data sets on local storage.

Question 13

List use cases for a Compute Optimised Instance Type (x6)

Answer 13

• Batch processing workloads
• Media transcoding
• High performance web servers
• High performance computing (HPC)
• Scientific modelling and machine learning
• Dedicated gaming servers

Question 14

List use cases for a Memory Optimised Instance Type (x4)

Answer 14

• High performance, relational / non-relational databases
• Distributed web scale cache stores
• In-memory database optimised for BI
• Applications performing real-time processing for big unstructured data

Question 15

True or False? You should used IAM Credentials with an EC2 Instance

Answer 15

False