A Company Maintains a Searchable Repository of Items on Its

question 353

Multiple Choice

A company maintains a searchable repository of items on its website. The data is stored in an Amazon RDS for MySQL database table that contains over 10 million rows. The database has 2 TB of General Purpose SSD (gp2) storage. There are millions of updates against this data every day through the company's website. The company has noticed some operations are taking 10 seconds or longer and has determined that the database storage performance is the bottleneck. Which solution addresses the performance issue?

• A) Change the storage type to Provisioned IOPS SSD (io1).
• B) Change the instance to a memory-optimized instance class.
• C) Change the instance to a burstable performance DB instance class.
• D) Enable Multi-AZ RDS read replicas with MySQL native asynchronous replication.

---

Definitions:

Cross-Cultural Fairness

The principle that assessment tools and processes should be equally valid and fair across different cultural groups, minimizing bias.

Concurrent Validity

The extent to which test scores correlate with scores on an established test of the same skill or knowledge area, taken at the same time.

Discriminant Validity

A measure of the degree to which a test or tool is capable of distinguishing between different constructs or phenomena.

Construct Validity

The extent to which a test accurately measures the theoretical, non-observable construct or trait it is intended to assess.