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To prepare for the DVA-C02 Exam, candidates must have a solid understanding of programming concepts, such as object-oriented programming, data structures, and algorithms. They should also be familiar with AWS services, architectures, and deployment models. Candidates can prepare for the exam by attending AWS training courses, reading AWS documentation, and practicing with AWS services and tools.
Amazon DVA-C02 (AWS Certified Developer - Associate) Certification Exam is a professional certification program offered by Amazon Web Services (AWS) that is specifically designed for developers who want to demonstrate their expertise in designing, deploying, and maintaining applications on AWS. AWS Certified Developer - Associate certification is ideal for developers who have some experience working with AWS and want to validate their skills to potential employers or clients.
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NEW QUESTION # 99
A developer needs to fix an AWS CodeDeploy deployment that failed. During the failed deployment, the developer received the following error message:
"The overall deployment failed because too many individual instances failed deployment, too few healthy instances are available for deployment, or some instances in your deployment group are experiencing problems. (Error code: HEALTH-CONSTRAINTS)" What are the possible causes of the failed deployment? (Choose two.)
Answer: A,D
Explanation:
If the CodeDeploy agent is not running on the instances, it cannot carry out the deployment process, leading to failure and health constraints errors.
Instances need to pass health checks during deployment. If they are not set up properly for health checks, CodeDeploy will report failures and might result in a HEALTH-CONSTRAINTS error.
NEW QUESTION # 100
A financial company must store original customer records for 10 years for legal reasons. A complete record contains personally identifiable information (PII). According to local regulations, PII is available to only certain people in the company and must not be shared with third parties. The company needs to make the records available to third-party organizations for statistical analysis without sharing the PII.
A developer wants to store the original immutable record in Amazon S3. Depending on who accesses the S3 document, the document should be returned as is or with all the PII removed. The developer has written an AWS Lambda function to remove the PII from the document. The function is named removePii.
What should the developer do so that the company can meet the PII requirements while maintaining only one copy of the document?
Answer: A
Explanation:
Explanation
S3 Object Lambda allows you to add your own code to process data retrieved from S3 before returning it to an application. You can use an AWS Lambda function to modify the data, such as removing PII, redacting confidential information, or resizing images. You can create an S3 Object Lambda access point and associate it with your Lambda function. Then, you can use the access point to request objects from S3 and get the modified data back. This way, you can maintain only one copy of the original document in S3 and apply different transformations depending on who accesses it. Reference: Using AWS Lambda with Amazon S3
NEW QUESTION # 101
A software company is launching a multimedia application. The application will allow guest users to access sample content before the users decide if they want to create an account to gain full access. The company wants to implement an authentication process that can identify users who have already created an account. The company also needs to keep track of the number of guest users who eventually create an account.
Which combination of steps will meet these requirements? {Select TWO.)
Answer: B,E
NEW QUESTION # 102
A company is creating an application that processes csv files from Amazon S3 A developer has created an S3 bucket The developer has also created an AWS Lambda function to process the csv files from the S3 bucket Which combination of steps will invoke the Lambda function when a csv file is uploaded to Amazon S3?
(Select TWO.)
Answer: C,E
Explanation:
* Amazon EventBridge: A service that reacts to events from various AWS sources, including S3. Rules define which events trigger actions (like invoking Lambda functions).
* S3 Object Created Events: EventBridge can detect these, providing seamless integration for automated CSV processing.
* S3 Lifecycle Rules: Allow for actions based on object age or prefixes. These can directly trigger Lambda functions for file processing.
NEW QUESTION # 103
A developer has an application that pushes files from an on-premises local server to an Amazon S3 bucket.
The application uses an AWS access key and a secret key that are stored on the server for authentication. The application calls AWS STS to assume a role with access to perform the S3 PUT operation to upload the file.
The developer is migrating the server to an Amazon EC2 instance. The EC2 instance is configured with an IAM instance profile in the same AWS account that owns the S3 bucket.
What is the MOST secure solution for the developer to use to migrate the automation code?
Answer: A
Explanation:
The most secure approach on Amazon EC2 is to avoid long-term static credentials entirely and rely on IAM roles for Amazon EC2 (instance profiles). When an EC2 instance is associated with an instance profile, AWS automatically provides temporary security credentials to the instance through the instance metadata service (IMDS). The AWS SDK and CLI can retrieve and rotate these credentials automatically, eliminating the need to store an access key and secret key on disk. This reduces the risk of credential leakage and removes the operational burden of key rotation.
In this scenario, the EC2 instance is already configured with an IAM instance profile in the same account as the S3 bucket. Because the bucket is in the same account and the instance profile can be granted the required permissions, there is no security benefit to keeping a separate stored access key/secret key or performing an additional STS AssumeRole hop. The simplest and most secure design is to attach an IAM policy to the instance profile role that allows the required s3:PutObject (and any related actions such as s3:PutObjectAcl if needed) on the specific bucket/prefix. The application code can then call S3 directly using the AWS SDK, which will automatically use the instance profile credentials.
Option A continues to use long-lived static credentials stored on the server, which is less secure than instance profiles. Option D is the same problem with different keys: still long-lived credentials that must be protected and rotated. Option B removes stored keys but keeps an AssumeRole call; although AssumeRole uses temporary credentials, it adds complexity and is unnecessary here because the instance already has an IAM role and the S3 bucket is in the same account.
Therefore, the most secure solution is C: remove static keys and the AssumeRole code and use the instance profile role with least-privilege S3 permissions.
NEW QUESTION # 104
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