A human resources software-as-a-service (SaaS) provider experiences extreme compute demands only during the final three days of each month when processing payroll for all of its clients. The rest of the month, the system requires minimal resources. The company wants to optimize its architecture on AWS to avoid paying for idle infrastructure and to eliminate the need to predict peak workloads.
Which of the following AWS Cloud benefits most directly align with these goals? (Select TWO.)
- Stop guessing capacityAnswer
- Trade fixed expense for variable expenseAnswer
- CShift variable operating expenses into fixed capital expenses
- DImplement permanent over-provisioning to achieve dynamic elasticity
- EBuild monolithic applications to achieve highly predictable scaling patterns
Answer
The benefits of 'Stop guessing capacity' and 'Trade fixed expense for variable expense' are correct.
The correct options are 'Stop guessing capacity' and 'Trade fixed expense for variable expense'. The SaaS provider has a periodic, variable workload that runs for only three days a month. By choosing 'Stop guessing capacity', they can leverage auto-scaling to dynamically handle the payroll workload without having to predict peak capacity beforehand. By choosing 'Trade fixed expense for variable expense', they pay only for the compute capacity they consume during those three days, avoiding the fixed cost of owning and running idle servers during the rest of the month.
Step-by-Step Solution
Key Concept
AWS Cloud Benefits (Stop guessing capacity and Trade fixed expense for variable expense)