Cloud Concepts Flashcards
Availability
what percentage of time does a system respond properly to requests,
expressed as a percentage over time
High Availability
a system specifically designed to be resilient when some component of
the system fails
Scalability
the ability of a system to grow it’s capacity “easily” when a system reaches its
maximum capacity
Elasticity
the ability of a system to automatically grow when maximum capacity is
reached, and automatically shrink to minimize w
Agility
the ability to respond to change “rapidly” based on changes to market or
environment
Fault Tolerance
the ability to tolerate hardware failures in your system, required to
achieve high availability
Disaster Recovery
the ability to recover from a big failure within an acceptable period of
time, with an acceptable amount of data lost
Economies of Scale
the more you buy something, the cheaper it is per unit to buy; and
the cheaper it is to maintain