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Amazon AWS Certified Developer Associate Exam Sample Questions (Q301-Q306):
NEW QUESTION # 301
In DynamoDB, what type of HTTP response codes indicate that a problem was found with the client request sent to the service?
- A. 306 HTTP response code
- B. 200 HTTP response code
- C. 4xx HTTP response code
- D. 5xx HTTP response code
Answer: C
NEW QUESTION # 302
Where should an Elastic Beanstalk configuration file named healthcheckur1.config be placed in the application source bundle?
- A. In healthcheckur1.config.ebextension under root
- B. In the .ebextensions folder
- C. In the bin folder
- D. In the root of the application
Answer: B
NEW QUESTION # 303
A Developer is working on an application that tracks hundreds of millions of product reviews in an Amazon DynamoDB table. The records include the data elements shown in the table:
Which field, when used as the partition key, would result in the MOST consistent performance using DynamoDB?
- A. comment
- B. reviewID
- C. productID
- D. starRating
Answer: C
Explanation:
Explanation
Refer AWS documentation - DynamoDB Design partition key
The partition key portion of a table s primary key determines the logical partitions in which a table's data is stored. This in turn affects the underlying physical partitions. Provisioned I/O capacity for the table is divided evenly among these physical partitions. Therefore a partition key design that doesn't distribute I/O requests evenly can create "hot" partitions that result in throttling and use your provisioned I/O capacity inefficiently.
The optimal usage of a table's provisioned throughput depends not only on the workload patterns of individual items, but also on the partition-key design. This doesn t mean that you must access all partition key values to achieve an efficient throughput level, or even that the percentage of accessed partition key values must be high. It does mean that the more distinct partition key values that your workload accesses, the more those requests will be spread across the partitioned space. In general, you will use your provisioned throughput more efficiently as the ratio of partition key values accessed to the total number of partition key values increases.
NEW QUESTION # 304
A developer is working on a serverless application lhat needs lo process any changes to an Amazon DynamoDB table with an AWS Lambda function How should the developer configure the Lambda function to detect changes to the DynamoDB tabled
- A. Create an Amazon Kinesis data stream, and attach it to the DynamoDB table Create a trigger to connect the data stream to the Lambda function
- B. Enable DynamoDB Streams on the table Create a trigger to connect the DynamoDB stream to the Lambda function
- C. Create an Amazon Kinesis Data Firehose delivery stream, and attach it to the DynamoDB table Configure the delivery stream destination as the Lambda function
- D. Create an Amazon EventBridge (Amazon CloudWatch Events) rule to invoke the Lambda function on a regular schedule Connect to the DynamoDB table from the Lambda function to detect changes
Answer: B
NEW QUESTION # 305
Which features can be used to restrict access to data in S3? Choose 2 answers
- A. Set an S3 Bucket policy.
- B. Set an S3 ACL on the bucket or the object.
- C. Use S3 Virtual Hosting
- D. Enable IAM Identity Federation.
- E. Create a CloudFront distribution for the bucket
Answer: A,B
NEW QUESTION # 306
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