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| Section | Weight | Objectives |
|---|---|---|
| Security | 26% | - Data security
|
| Deployment | 24% | - Infrastructure as code
|
| Development with AWS Services | 32% | - AWS core services development
|
| Troubleshooting and Optimization | 18% | - Monitoring and logging
|
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NEW QUESTION # 31
A developer has written the following IAM policy to provide access to an Amazon S3 bucket:
Which access does the policy allow regarding the s3:GetObject and s3:PutObject actions?
Answer: B
Explanation:
The policy allows GetObject and PutObject access to objects in the specified S3 bucket, but the explicit deny applies to objects whose keys start with secrets. In IAM policy evaluation, an explicit deny overrides any allow, so access is permitted only for objects outside that prefix.
NEW QUESTION # 32
A developer has written the following IAM policy to provide access to an Amazon S3 bucket:
Which access does the policy allow regarding the s3:GetObject and s3:PutObject actions?
Answer: B
Explanation:
The IAM policy shown in the image is a resource-based policy that grants or denies access to an S3 bucket based on certain conditions. The first statement allows access to any S3 action on any object in the "DOC- EXAMPLE-BUCKET" bucket when the request is made over HTTPS (the value of aws:SecureTransport is true). The second statement denies access to the s3:GetObject and s3:PutObject actions on any object in the
"DOC-EXAMPLE-BUCKET/secrets" prefix when the request is made over HTTP (the value of aws:
SecureTransport is false). Therefore, the policy allows access on all objects in the "DOC-EXAMPLE- BUCKET" bucket except on objects that start with "secrets". Reference: Using IAM policies for Amazon S3
NEW QUESTION # 33
A developer is creating an application that includes an Amazon API Gateway REST API in the us-east-2 Region. The developer wants to use Amazon CloudFront and a custom domain name for the API. The developer has acquired an SSL/TLS certificate for the domain from a third-party provider.
How should the developer configure the custom domain for the application?
Answer: D
Explanation:
Explanation
Amazon API Gateway is a service that enables developers to create, publish, maintain, monitor, and secure APIs at any scale. Amazon CloudFront is a content delivery network (CDN) service that can improve the performance and security of web applications. The developer can use CloudFront and a custom domain name for the API Gateway REST API. To do so, the developer needs to import the SSL/TLS certificate into AWS Certificate Manager (ACM) in the us-east-1 Region. This is because CloudFront requires certificates from ACM to be in this Region. The developer also needs to create a DNS CNAME record for the custom domain that points to the CloudFront distribution.
References:
[What Is Amazon API Gateway? - Amazon API Gateway]
[What Is Amazon CloudFront? - Amazon CloudFront]
[Custom Domain Names for APIs - Amazon API Gateway]
NEW QUESTION # 34
A developer is building a multi-tenant application that uses an AWS Lambda function and an Amazon S3 bucket. An S3 event notification invokes the Lambda function when a new file is uploaded to the S3 bucket.
The function reads each new file from the S3 bucket, processes the file, and writes data to an Amazon DynamoDB table. Each file in the S3 bucket has a prefix that corresponds with the name of the tenant that owns the file. Items in the DynamoDB table use tenant name as the partition key.
The developer must reduce the risk that file data will leak across tenants during processing.
Which combination of actions will meet this requirement? (Select THREE.)
Answer: C,D,F
Explanation:
The safest way to prevent cross-tenant data leakage during processing is to enforce tenant isolation at the authorization layer, not only in application logic. AWS supports this with ABAC (attribute-based access control) using IAM principal/session tags and policy condition keys. The goal is to ensure that, for each invocation, the function can access only the S3 prefix and DynamoDB items that match the tenant being processed.
First, the Lambda execution role should be permitted to assume a dedicated data access role (B). This creates a clear separation: the execution role has minimal base permissions and can obtain tenant-scoped permissions only by assuming the data role.
Second, the Lambda function should assume that data access role with the tenant name as a session tag and then use the temporary credentials for all S3/DynamoDB calls (F). Session tagging ties the caller's identity attributes (tenant) to the credentials used for data access.
Third, attach policies to the data access role that restrict access using conditions that compare the session tag to the requested resource attributes (C). For S3, policies can restrict access to object ARNs like arn:aws:s3:::
bucket/${aws:PrincipalTag/tenant}/*. For DynamoDB, policies can restrict access by partition key using dynamodb:LeadingKeys so the role can read/write only items whose partition key equals the tenant tag. This ensures that even if the function code has a bug or receives unexpected input, AWS authorization prevents it from reading or writing another tenant's data.
Option A is not required as stated; you typically need permission to pass session tags (and the trust/policy must allow tagging), but the key actions here are: enable assume role (B), enforce tag-based data policies (C), and actually assume the role with tenant tag (F). Option D is not generally the primary control for DynamoDB; the standard enforcement is via IAM identity policies (and dynamodb:LeadingKeys). Option E (RCP) is an AWS Organizations guardrail and is not necessary for this single-application isolation pattern.
NEW QUESTION # 35
An application interacts with Amazon Aurora to store and track customer information. The primary database is set up with multiple read replicas for improving the performance of the read queries.
However, one of the Aurora replicas is receiving most or all of the traffic, while the other Aurora replica remains idle.
How can this issue be resolved?
Answer: D
NEW QUESTION # 36
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