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| Certification Vendor: | Amazon Web Services (AWS) |
|---|---|
| Exam Name: | AWS Certified Developer - Associate |
| Exam Number: | DVA-C02 |
| Exam Price: | 150 USD |
| Available Languages: | Japanese, English, Simplified Chinese, Portuguese (Brazil), Spanish (Latin America), Korean |
| Real Exam Qty: | 65 (50 scored, 15 unscored) |
| Related Certifications: | AWS Certified DevOps Engineer - Professional AWS Certified Cloud Practitioner |
| Exam Format: | Multiple choice, Multiple response |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 130 minutes |
| Passing Score: | 720 (scaled score of 100โ1,000) |
| Sample Questions: | Amazon DVA-C02 Sample Questions |
| Exam Way: | Pearson VUE testing center or online proctored exam |
| Pre Condition: | Recommended 1 or more years of hands-on experience in developing and maintaining applications using AWS services. Proficiency in at least one high-level programming language. |
| Official Syllabus URL: | https://aws.amazon.com/certification/certified-developer-associate/ |
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Amazon DVA-C02 Exam is a challenging certification exam that requires extensive knowledge and hands-on experience in developing and maintaining applications on AWS. DVA-C02 exam consists of 65 multiple-choice and multiple-response questions that must be completed within 130 minutes. The passing score for the exam is 720 out of 1000 points. Upon passing the exam, candidates will receive the AWS Certified Developer - Associate certification, which demonstrates their proficiency in developing and maintaining applications on AWS and validates their skills in the rapidly growing field of cloud computing.
NEW QUESTION # 617
A developer is building a three-tier web application that should be able to handle a minimum of 5000 requests per minute. Requirements state that the web tier should be completely stateless while the application maintains session state for the users.
How can session data be externalized, keeping latency at the LOWEST possible value?
Answer: D
Explanation:
Comprehensive Detailed Explanation with all AWS References
* Why Option C is Correct:
* Amazon ElastiCache (Memcached) provides low-latency, in-memory caching suitable for session storage. It ensures stateless web tier operations and supports the high throughput of 5000 requests per minute.
* Why Other Options are Incorrect:
* Option A: RDS has higher latency compared to in-memory caching solutions like ElastiCache.
* Option B: Shared file systems introduce additional complexity and are not ideal for low-latency session data storage.
* Option D: DynamoDB has low latency but is less performant than ElastiCache for in-memory session management.
* AWS Documentation References:
* Amazon ElastiCache for Session State Management
NEW QUESTION # 618
A developer is troubleshooting an application that uses Amazon DynamoDB in the us-west-2 Region. The application is deployed to an Amazon EC2 instance. The application requires read- only permissions to a table that is named Cars. The EC2 instance has an attached IAM role that contains the following IAM policy:
When the application tries to read from the Cars table, an Access Denied error occurs.
How can the developer resolve this error?
Answer: A
Explanation:
https://aws.amazon.com/blogs/security/how-to-use-trust-policies-with-iam-roles/
NEW QUESTION # 619
A company built an online event platform For each event the company organizes quizzes and generates leaderboards that are based on the quiz scores. The company stores the leaderboard data in Amazon DynamoDB and retains the data for 30 days after an event is complete The company then uses a scheduled job to delete the old leaderboard data The DynamoDB table is configured with a fixed write capacity. During the months when many events occur, the DynamoDB write API requests are throttled when the scheduled delete job runs.
A developer must create a long-term solution that deletes the old leaderboard data and optimizes write throughput Which solution meets these requirements?
Answer: A
Explanation:
* DynamoDB TTL (Time-to-Live): A native feature that automatically deletes items after a specified expiration time.
* Efficiency: Eliminates the need for scheduled deletion jobs, optimizing write throughput by avoiding potential throttling conflicts.
* Seamless Integration: TTL works directly within DynamoDB, requiring minimal development overhead.
References:
DynamoDB TTL Documentation: https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/TTL.
html
NEW QUESTION # 620
A developer is migrating some features from a legacy monolithic application to use AWS Lambda functions instead. The application currently stores data in an Amazon Aurora DB cluster that runs in private subnets in a VPC. The AWS account has one VPC deployed. The Lambda functions and the DB cluster are deployed in the same AWS Region in the same AWS account. The developer needs to ensure that the Lambda functions can securely access the DB cluster without crossing the public internet.
Which solution will meet these requirements?
Answer: B
Explanation:
NATGateway is for when we want Lambda to access the public when it is in a private VPC.
https://docs.aws.amazon.com/lambda/latest/dg/foundation-networking.html
NEW QUESTION # 621
A developer maintains an Amazon API Gateway REST API. Customers use the API through a frontend UI and Amazon Cognito authentication.
The developer has a new version of the API that contains new endpoints and backward-incompatible interface changes. The developer needs to provide beta access to other developers on the team without affecting customers.
Which solution will meet these requirements with the LEAST operational overhead?
Answer: B
Explanation:
Explanation
Amazon API Gateway is a service that enables developers to create, publish, maintain, monitor, and secure APIs at any scale. The developer can define a development stage on the API Gateway API and instruct the other developers to point the endpoints to the development stage. This way, the developer can provide beta access to the new version of the API without affecting customers who use the production stage. This solution will meet the requirements with the least operational overhead.
References:
[What Is Amazon API Gateway? - Amazon API Gateway]
[Set up a Stage in API Gateway - Amazon API Gateway]
NEW QUESTION # 622
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