Horizontal Scaling

• What is it?
• Why use it?
• Challenges
• Example

Vertical Scaling

• What is it?
• Why use it?
• Challenges
• Example

Database Sharding

• What is it?
• Why use it?
• Challenges
• Example

CQRS (Command Query Responsibility Segregation)

• What is it?
• Why use it?
• Challenges
• Example