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AWS-Developer Clear Exam | AWS-Developer Exam Learning

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The AWS Certified Developer - Associate certification is designed for individuals who have experience developing and maintaining applications on the AWS platform. AWS Certified Developer Associate Exam (DVA-C02) certification validates your ability to design, deploy, and maintain AWS applications, and demonstrates your proficiency in using AWS services such as AWS Lambda, Amazon S3, Amazon DynamoDB, and more. AWS Certified Developer Associate Exam (DVA-C02) certification exam is designed to test your knowledge of AWS development best practices, as well as your ability to troubleshoot and optimize AWS applications.

Amazon AWS Certified Developer Associate Exam (DVA-C02) Sample Questions (Q132-Q137):

NEW QUESTION # 132
A company has a production Amazon Aurora Db cluster that serves both online transaction processing (OLTP) transactions and compute-intensive reports. The reports run for 10% of the total cluster uptime while the OLTP transactions run all the time. The company has benchmarked its workload and determined that a six-node Aurora DB cluster is appropriate for the peak workload.
The company is now looking at cutting costs for this DB cluster, but needs to have a sufficient number of nodes in the cluster to support the workload at different times. The workload has not changed since the previous benchmarking exercise.
How can a Database Specialist address these requirements with minimal user involvement?

A. Use the stop cluster functionality to stop all the nodes of the DB cluster during times of minimal workload.
The cluster can be restarted again depending on the workload at the time.
B. Split up the DB cluster into two different clusters: one for OLTP and the other for reporting. Monitor and set up replication between the two clusters to keep data consistent.
C. Set up automatic scaling on the DB cluster. This will allow the number of reader nodes to adjust automatically to the reporting workload, when needed.
D. Review all evaluate the peak combined workload. Ensure that utilization of the DB cluster node is at an acceptable level. Adjust the number of instances, if necessary.

Answer: C

NEW QUESTION # 133
A meteorological system monitors 600 temperature gauges, obtaining temperature samples every minute
and saving each sample to a DynamoDB table. Each sample involves writing 1K of data and the writes
are evenly distributed over time.
How much write throughput is required for the target table?

A. 10 write capacity units
B. 60 write capacity units
C. 1 write capacity unit
D. 600 write capacity units
E. 3600 write capacity units

Answer: A

NEW QUESTION # 134
An online food company provides an Amazon API Gateway HTTP API 1o receive orders for partners. The API is integrated with an AWS Lambda function. The Lambda function stores the orders in an Amazon DynamoDB table.
The company expects to onboard additional partners Some to me panthers require additional Lambda function to receive orders. The company has created an Amazon S3 bucket. The company needs 10 store all orders and updates m the S3 bucket for future analysis How can the developer ensure that an orders and updates are stored to Amazon S3 with the LEAST development effort?

A. Create a new Lambda function and a new API Gateway API endpoint. Configure the new Lambda function to write to the S3 bucket. Modify the original Lambda function to post updates to the new API endpoint.
B. Modify the Lambda function to punish to a new Amazon. Simple Lambda function receives orders.Subscribe a new Lambda function to the topic. Configure the new Lambda function to write to the S3 bucket as updates come through the topic.
C. Use Amazon Kinesis Data Streams to create a new data stream. Modify the Lambda function to publish orders to the oats stream Configure in data stream to write to the S3 bucket.
D. Enable DynamoDB Streams on me DynamoOB table. Create a new lambda function. Associate the stream's Amazon Resource Name (ARN) with the Lambda Function Configure the Lambda function to write to the S3 bucket as records appear in the table's stream.

Answer: D

Explanation:
This solution will ensure that all orders and updates are stored to Amazon S3 with the least development effort because it uses DynamoDB Streams to capture changes in the DynamoDB table and trigger a Lambda function to write those changes to the S3 bucket. This way, the original Lambda function and API Gateway API endpoint do not need to be modified, and no additional services are required. Option A is not optimal because it will require more development effort to create a new Lambda function and a new API Gateway API endpoint, and to modify the original Lambda function to post updates to the new API endpoint. Option B is not optimal because it will introduce additional costs and complexity to use Amazon Kinesis Data Streams to create a new data stream, and to modify the Lambda function to publish orders to the data stream. Option D is not optimal because it will require more development effort to modify the Lambda function to publish to a new Amazon SNS topic, and to create and subscribe a new Lambda function to the topic.
References: Using DynamoDB Streams, Using AWS Lambda with Amazon S3

NEW QUESTION # 135
A developer is using AWS Amplify Hosting to build and deploy an application. The developer is receiving an increased number of bug reports from users. The developer wants to add end-to-end testing to the application to eliminate as many bugs as possible before the bugs reach production.
Which solution should the developer implement to meet these requirements?

A. Add a test phase to the aws-exports.js file for the application.
B. Run the amplify add test command in the Amplify CLI.
C. Add a test phase to the amplify.yml build settings for the application.
D. Create unit tests in the application. Deploy the unit tests by using the amplify push command in the Amplify CLI.

Answer: C

NEW QUESTION # 136
A user has created an EBS volume with 1000 IOPS. What is the average IOPS that the user will get for most of the year as per EC2 SLA if the instance is attached to the EBS optimized instance?

A. 0
B. 1
C. 2
D. 3

Answer: C

Explanation:
As per AWS SLA if the instance is attached to an EBS-Optimized instance, then the Provisioned IOPS volumes are designed to deliver within 10% of the provisioned IOPS performance 99.9% of the time in a given year. Thus, if the user has created a volume of 1000 IOPS, the user will get a minimum 900 IOPS 99.9% time of the year.
http://aws.amazon.com/ec2/faqs/

NEW QUESTION # 137
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