A Company Has a Heterogeneous Six-Node Production Amazon Aurora DB

question 6

Multiple Choice

A company has a heterogeneous six-node production Amazon Aurora DB cluster that handles online transaction processing (OLTP) for the core business and OLAP reports for the human resources department. To match compute resources to the use case, the company has decided to have the reporting workload for the human resources department be directed to two small nodes in the Aurora DB cluster, while every other workload goes to four large nodes in the same DB cluster. Which option would ensure that the correct nodes are always available for the appropriate workload while meeting these requirements?

• A) Use the writer endpoint for OLTP and the reader endpoint for the OLAP reporting workload.
• B) Use automatic scaling for the Aurora Replica to have the appropriate number of replicas for the desired workload.
• C) Create additional readers to cater to the different scenarios.
• D) Use custom endpoints to satisfy the different workloads.

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Definitions:

Identical Goods

Products that are exactly the same in every aspect, leading consumers to have no preference for one product over another based on characteristics, brand, or quality.

Perfect Competition

A market structure characterized by a large number of small firms, identical products, and free entry and exit, leading to price taking behavior.

Ease of Entry

Ease of entry refers to the lack of barriers for new firms to enter and compete in an industry or market, impacting competition and market dynamics.

Marginal Revenue

The supplementary income derived from the sale of one extra product or service unit.