You have a number of large PDF files stored in an RDS instance used by a company’s internal staff, of which 80% are on-site. These PDFs are accessed infrequently, but when they are accessed, they need to respond quickly to requests. As the company’s support staff has increased, the load is beginning to overwhelm the database. What suggestions would you make to improve performance? (Choose two.)
A. Set up a CloudFront distribution.
B. Upgrade the instance running the RDS database.
C. Consider installing a storage gateway with stored volumes at the customer’s
on-premises site.
D. Install ElastiCache in front of the database.
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