Basi Architecture Flashcards
Recovery point objectives
How much a business can tolerate to data lose expressed in time. The maximum time between a failure and last successful backup
Recovery time objects
The maximum time a system can be down. How long a solution takes to recover.
Meaning high availability
Hardware, software and configuration allowing a system to recover quickly in the event of failure.
Explain fault tolerance
System designed to operate through a failure no user impact. More expensive and harder to achieve.
High availability zone in AWS
HA when a system’s environment is designed with resilience in mind, meaning its goal is to have minimal service interruptions in an event of a failure. For example, by placing EC2 instances in multiple availability zones, an application can be protected from a failure at a single location.
What are the pillars of well-architected framework?
Reliability
Security
Performance Efficiency
Operational excellence