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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Design Secure Architectures | 30% | - Secure workloads and applications
|
| Topic 2: Design High-Performing Architectures | 24% | - Compute and storage optimization
|
| Topic 3: Design Cost-Optimized Architectures | 20% | - Cost management tools
|
| Topic 4: Design Resilient Architectures | 26% | - Fault tolerance and recovery
|
Mit einem Amazon SAA-C03 Zertifikat kann der Berufstätige in der IT-Branche bessere berufliche Aufstiegschancen haben. Das Amazon SAA-C03 Zertifikat ebnet den Berufstätigen in der IT-Branche den Weg zur erfolgreichen Karriere!
636. Frage
A company uses Amazon EC2 instances and Amazon Elastic Block Store (Amazon EBS) to run its self-managed database The company has 350 TB of data spread across all EBS volumes. The company takes daily EBS snapshots and keeps the snapshots for 1 month. The dally change rate is 5% of the EBS volumes.
Because of new regulations, the company needs to keep the monthly snapshots for 7 years. The company needs to change its backup strategy to comply with the new regulations and to ensure that data is available with minimal administrative effort.
Which solution will meet these requirements MOST cost-effectively?
Antwort: D
Begründung:
* Understanding the Requirement: The company needs to keep daily EBS snapshots for 1 month and retain monthly snapshots for 7 years due to new regulations.
* Analysis of Options:
* S3 Glacier Deep Archive: Moving snapshots to S3 Glacier Deep Archive involves additional complexity and might not be the most straightforward approach for EBS snapshots.
* EBS Snapshots Archive: This is a cost-effective solution designed specifically for long-term storage of EBS snapshots.
* Standard Tier for 7 Years: Keeping snapshots in the standard tier for 7 years is more expensive and does not optimize costs.
* EBS Direct APIs to S3: This involves additional operational overhead and is not the most cost-effective approach compared to using EBS Snapshots Archive.
* Best Solution:
* EBS Snapshots Archive: Adding a policy to move monthly snapshots to the EBS Snapshots Archive for long-term retention is the most cost-effective and administratively simple solution.
References:
* Amazon EBS Snapshots
* Amazon EBS Snapshots Archive
637. Frage
A genomics research company is designing a scalable architecture for a loosely coupled workload. Tasks in the workload are independent and can be processed in parallel. The architecture needs to minimize management overhead and provide automatic scaling based on demand.
Options:
Antwort: C
Begründung:
relationship between the IAM role and the OIDC provider allows the Kubernetes service account to assume the IAM role Explanation:
Comprehensive and Detailed
For workloads where tasks are independent and can be processed in parallel, and where minimizing management overhead is a priority, a serverless architecture using AWS Lambda is ideal.
AWS Lambda allows you to run code without provisioning or managing servers. It automatically scales your application by running code in response to each trigger.
Parallel Processing: Lambda functions can process multiple tasks concurrently, making it suitable for parallel workloads.
Automatic Scaling: Lambda automatically scales by running code in response to each event, scaling precisely with the size of the workload.
Minimal Management Overhead: With Lambda, there's no need to manage the underlying infrastructure, reducing operational complexity.Wikipedia Reference:
AWS Lambda - Run Code Without Thinking About Servers
Best Practices for Designing and Architecting with AWS Lambda
638. Frage
A company needs to save the results from a medical trial to an Amazon S3 repository. The repository must allow a few scientists to add new files and must restrict all other users to read-only access. No users can have the ability to modify or delete any files in the repository. The company must keep every file in the repository for a minimum of 1 year after its creation date.
Which solution will meet these requirements?
Antwort: C
639. Frage
[Design Secure Architectures]
To meet security requirements, a company needs to encrypt all of its application data in transit while communicating with an Amazon RDS MySQL DB instance. A recent security audit revealed that encryption at rest is enabled using AWS Key Management Service (AWS KMS), but data in transit is not enabled.
What should a solutions architect do to satisfy the security requirements?
Antwort: A
Begründung:
To satisfy the security requirements, the solutions architect should download AWS-provided root certificates and provide the certificates in all connections to the RDS instance. This will enable SSL/TLS encryption for data in transit between the application and the RDS instance. SSL/TLS encryption provides a layer of security by encrypting data that moves between the client and the server. Amazon RDS creates an SSL certificate and installs the certificate on the DB instance when the instance is provisioned.The application can use the AWS-provided root certificates to verify the identity of the DB instance and establish a secure connection1.
The other options are not correct because they do not enable encryption for data in transit or are not relevant for the use case. Enabling IAM database authentication on the database is not correct because this option only provides a method of authentication, not encryption.IAM database authentication allows users to use AWS Identity and Access Management (IAM) users and roles to access a database, instead of using a database username and password2. Providing self-signed certificates is not correct because this option is not secure or reliable. Self-signed certificates are certificates that are signed by the same entity that issued them, instead of by a trusted certificate authority (CA).Self-signed certificates can be easily forged or compromised, and are not recognized by most browsers and applications3. Taking a snapshot of the RDS instance and restoring it to a new instance with encryption enabled is not correct because this option onlyenables encryption at rest, not encryption in transit.Encryption at rest protects data that is stored on disk, but does not protect data that is moving between the client and the server4.
Reference:
Using SSL/TLS to encrypt a connection to a DB instance - Amazon Relational Database Service IAM database authentication for MySQL and PostgreSQL - Amazon Relational Database Service What are self-signed certificates?
Encrypting Amazon RDS resources - Amazon Relational Database Service
640. Frage
A law firm needs to share information with the public The information includes hundreds of files that must be publicly readable Modifications or deletions of the files by anyone before a designated future date are prohibited.
Which solution will meet these requirements in the MOST secure way?
Antwort: B
Begründung:
Amazon S3 is a service that provides object storage in the cloud. It can be used to store and serve static web content, such as HTML, CSS, JavaScript, images, and videos1. By creating a new Amazon S3 bucket and configuring it for static website hosting, the solution can share information with the public.
Amazon S3 Versioning is a feature that keeps multiple versions of an object in the same bucket. It helps protect objects from accidental deletion or overwriting by preserving, retrieving, and restoring every version of every object stored in an S3 bucket2. By enabling S3 Versioning on the new bucket, the solution can prevent modifications or deletions of the files by anyone.
Amazon S3 Object Lock is a feature that allows users to store objects using a write-once-read-many (WORM) model. It can help prevent objects from being deleted or overwritten for a fixed amount of time or indefinitely. It requires S3 Versioning to be enabled on the bucket3. By using S3 Object Lock with a retention period in accordance with the designated date, the solution can prohibit modifications or deletions of the files by anyone before that date.
Amazon S3 bucket policies are JSON documents that define access permissions for a bucket and its objects. They can be used to grant or deny access to specific users or groups based on conditions such as IP address, time of day, or source bucket. By setting an S3 bucket policy to allow read-only access to the objects, the solution can ensure that the files are publicly readable.
1. Upload all files to an Amazon S3 bucket that is configured for static website hosting. Grant read-only 1AM permissions to any AWS principals that access the S3 bucket until the designated date. This solution will not meet the requirement of prohibiting modifications or deletions of the files by anyone before a designated future date, as IAM permissions only apply to AWS principals, not to public users. It also does not use any feature to prevent accidental or intentional deletion or overwriting of the files.
2. Create a new Amazon S3 bucket with S3 Versioning enabled Configure an event trigger to run an AWS Lambda function in case of object modification or deletion. Configure the Lambda func-tion to replace the objects with the original versions from a private S3 bucket. This solution will not meet the requirement of prohibiting modifications or deletions of the files by anyone before a designated future date, as it only reacts to object modification or deletion events after they occur. It also involves creating and managing an additional resource (Lambda function) and a private S3 bucket.
3. Upload all files to an Amazon S3 bucket that is configured for static website hosting. Select the folder that contains the files. Use S3 Object Lock with a retention period in accordance with the designated date. Grant read-only 1AM permissions to any AWS principals that access the S3 bucket. This solution will not meet the requirement of prohibiting modifications or deletions of the files by anyone before a designated future date, as it does not enable S3 Versioning on the bucket, which is required for using S3 Object Lock. It also does not allow read-only access to public users.
Reference URL: https://docs.aws.amazon.com/AmazonS3/latest/userguide/WebsiteHosting.html
641. Frage
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Wir suchen die Methode des Erfolgs, aber nicht die Ausrede des Misserfolgs. Um zu garantieren, dass die Prüfungsunterlagen der Amazon SAA-C03 für Sie am verlässlichsten ist, haben die IT-Profis von ZertSoft seit Jahren die Prüfungsaufgaben der Amazon SAA-C03 sorgfältig analysiert und die ausführliche Erklärungen geordnet. Die Zertifizierung der Amazon SAA-C03 ist der überzeugende Beweis für Ihre IT-Fähigkeit und wird in Ihrem Berufsleben eine große Rolle spielen.
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