Amazon Web Services surepassexam free Dbs-c01 Questions Attempt by Seb q243 vce pdf

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Exam Name:	AWS Certified Database - Specialty
Exam Code:	DBS-C01 Dumps
Vendor:	Amazon Web Services	Certification:	AWS Certified Database
Questions:	324 Q&A's	Shared By:	seb

Question 48

Recently, a gaming firm purchased a popular iOS game that is especially popular during the Christmas season. The business has opted to include a leaderboard into the game, which will be powered by Amazon DynamoDB. The application's load is likely to increase significantly throughout the Christmas season.

Which solution satisfies these criteria at the lowest possible cost?

Options:

DynamoDB Streams

DynamoDB with DynamoDB Accelerator

DynamoDB with on-demand capacity mode

DynamoDB with provisioned capacity mode with Auto Scaling

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Question 49

A database specialist manages a critical Amazon RDS for MySQL DB instance for a company. The data stored daily could vary from .01% to 10% of the current database size. The database specialist needs to ensure that the DB instance storage grows as needed.

What is the MOST operationally efficient and cost-effective solution?

Options:

Configure RDS Storage Auto Scaling.

Configure RDS instance Auto Scaling.

Modify the DB instance allocated storage to meet the forecasted requirements.

Monitor the Amazon CloudWatch FreeStorageSpace metric daily and add storage as required.

Discussion

Question 50

A company is building a new web platform where user requests trigger an AWS Lambda function that performs an insert into an Amazon Aurora MySQL DB cluster. Initial tests with less than 10 users on the new platform yielded successful execution and fast response times. However, upon more extensive tests with the actual target of 3,000 concurrent users, Lambda functions are unable to connect to the DB cluster and receive too many connections errors.

Which of the following will resolve this issue?

Options:

Edit the my.cnf file for the DB cluster to increase max_connections

Increase the instance size of the DB cluster

Change the DB cluster to Multi-AZ

Increase the number of Aurora Replicas

Discussion

Question 51

An online retailer uses Amazon DynamoDB for its product catalog and order data. Some popular items have led to frequently accessed keys in the data, and the company is using DynamoDB Accelerator (DAX) as the caching solution to cater to the frequently accessed keys. As the number of popular products is growing, the company realizes that more items need to be cached. The company observes a high cache miss rate and needs a solution to address this issue.

What should a database specialist do to accommodate the changing requirements for DAX?

Options:

Increase the number of nodes in the existing DAX cluster.

Create a new DAX cluster with more nodes. Change the DAX endpoint in the application to point to the new cluster.

Create a new DAX cluster using a larger node type. Change the DAX endpoint in the application to point to the new cluster.

Modify the node type in the existing DAX cluster.