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A Cloud Guru: AWS Solution Architecture Professional Exam (Data Storage…
A Cloud Guru:
AWS Solution Architecture Professional Exam
Security (20%)
High Availability & Business Continuity (15%)
Data Storage (15%)
Data Persistance
Persistent Data Store
Data is durable and sticks around after reboots, restarts, or power cycles
Transient Data Store
Data is just temporarily stored and passed along to another process or persistent store
Ephemeral Data Store
Data is lost when stopped
Data Measures
Input/Output Operations per Second (IOPS)
Measure of how fast we can read and write
Throughput
Measure of how much data can be moved at a time
Consistency Models
ACID
Atomic
Transactions are "all or nothing".
Consistent
Transactions must be valid
Isolated
Transactions can't mess with one another
Durable
Completed transaction must stick around
BASE
Basic Availability
Values availability even if stale
Soft-state
might not be instantly consistent at some point
Eventual Consistency
Will achieve consistency at some point
Scalability & Elasticity (15%)
Deployment Management (10%)
Network Design (10%)
Cloud Migration & Hybrid Architecture (10%)
Costing (5%)