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The Amazon SAA-C03 exam consists of multiple-choice and multiple-response questions, and the candidate has 130 minutes to complete the test. SAA-C03 exam fee is $150, and the certification is valid for three years. Passing the SAA-C03 exam is a significant achievement and can lead to better career opportunities in the cloud computing industry.
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Amazon SAA-C03 exam consists of multiple-choice questions and is proctored. SAA-C03 exam covers a wide range of topics, including AWS core services, security, networking, and pricing and billing. SAA-C03 Exam is designed to be challenging, and candidates are encouraged to prepare thoroughly before taking the exam.
NEW QUESTION # 197
An ecommerce company runs a multi-tier application on AWS. The frontend and backend tiers both run on Amazon EC2 instances. The database tier runs on an Amazon RDS for MySQL DB instance. The backend tier communicates with the RDS DB instance. The application makes frequent calls to return identical datasets from the database. The frequent calls on the database cause performance slowdowns. A solutions architect must improve the performance of the application backend. Which solution will meet this requirement?
Answer: A
Explanation:
Caching frequently accessed, identical datasets is a well-established way to improve backend application performance by reducing load on the database. Amazon ElastiCache with Redis (open source) offers a fast, in-memory data store to cache query results, reducing latency and database requests.
Option B directly addresses the problem by offloading repeated read requests from the database to the cache.
Option A (SNS) is a messaging service and is unrelated to caching or improving database performance.
Option C (DAX) accelerates DynamoDB but the backend uses RDS MySQL, so DAX is inapplicable.
Option D (Data Firehose) is a data streaming service and does not optimize database read performance.
NEW QUESTION # 198
A company uses Amazon RDS for PostgreSQL databases for its data tier. The company must implement password rotation for the databases.
Which solution meets this requirement with the LEAST operational overhead?
Answer: C
Explanation:
AWS Secrets Manager is the recommended service for managing and automatically rotating database credentials. It integrates natively with Amazon RDS (including PostgreSQL), supports built-in rotation functionality, and requires minimal setup.
Secrets Manager also supports versioning and auditing, which enhances operational excellence and security.
Parameter Store does not natively support credential rotation. AWS KMS manages key encryption-not application secrets-so it is not applicable here.
NEW QUESTION # 199
A digital media company shares static content to its premium users around the world and also to their partners who syndicate their media files. The company is looking for ways to reduce its server costs and securely deliver their data to their customers globally with low latency.
Which combination of services should be used to provide the MOST suitable and cost-effective architecture? (Select TWO.)
Answer: A,D
Explanation:
Amazon CloudFront is a fast content delivery network (CDN) service that securely delivers data, videos, applications, and APIs to customers globally with low latency, high transfer speeds, all within a developer-friendly environment.
CloudFront is integrated with AWS - both physical locations that are directly connected to the AWS global infrastructure, as well as other AWS services. CloudFront works seamlessly with services including AWS Shield for DDoS mitigation, Amazon S3, Elastic Load Balancing or Amazon EC2 as origins for your applications, and Lambda@Edge to run custom code closer to customers' users and to customize the user experience. Lastly, if you use AWS origins such as Amazon S3, Amazon EC2 or Elastic Load Balancing, you don't pay for any data transferred between these services and CloudFront.
Amazon S3 is object storage built to store and retrieve any amount of data from anywhere on the Internet. It's a simple storage service that offers an extremely durable, highly available, and infinitely scalable data storage infrastructure at very low costs.
AWS Global Accelerator and Amazon CloudFront are separate services that use the AWS global network and its edge locations around the world. CloudFront improves performance for both cacheable content (such as images and videos) and dynamic content (such as API acceleration and dynamic site delivery).
Global Accelerator improves performance for a wide range of applications over TCP or UDP by proxying packets at the edge to applications running in one or more AWS Regions. Global Accelerator is a good fit for non-HTTP use cases, such as gaming (UDP), IoT (MQTT), or Voice over IP, as well as for HTTP use cases that specifically require static IP addresses or deterministic, fast regional failover. Both services integrate with AWS Shield for DDoS protection.
Hence, the correct options are Amazon CloudFront and Amazon S3.
AWS Fargate is incorrect because this service is just a serverless compute engine for containers that work with both Amazon Elastic Container Service (ECS) and Amazon Elastic Kubernetes Service (EKS).
Although this service is more cost-effective than its server-based counterpart, Amazon S3 still costs way less than Fargate, especially for storing static content.
AWS Lambda is incorrect because this simply lets you run your code serverless, without provisioning or managing servers. Although this is also a cost-effective service since you have to pay only for the compute time you consume, you can't use this to store static content or as a Content Delivery Network (CDN). A better combination is Amazon CloudFront and Amazon S3.
AWS Global Accelerator is incorrect because this service is more suitable for non-HTTP use cases, such as gaming (UDP), IoT (MQTT), or Voice over IP, as well as for HTTP use cases that specifically require static IP addresses or deterministic, fast regional failover. Moreover, there is no direct way that you can integrate AWS Global Accelerator with Amazon S3. It's more suitable to use Amazon CloudFront instead in this scenario.
References:
https://aws.amazon.com/premiumsupport/knowledge-center/cloudfront-serve-static-website/
https://aws.amazon.com/blogs/networking-and-content-delivery/amazon-s3-amazon-cloudfront-a-match- made-in-the-cloud/
https://aws.amazon.com/global-accelerator/faqs/
NEW QUESTION # 200
[Design Operationally Excellent Architectures]
A company runs a containerized application on a Kubernetes cluster in an on-premises data center. The company is using a MongoDB database for data storage.
The company wants to migrate some of these environments to AWS, but no code changes or deployment method changes are possible at this time. The company needs a solution that minimizes operational overhead.
Which solution meets these requirements?
Answer: C
Explanation:
Amazon DocumentDB (with MongoDB compatibility) is a fast, reliable, and fully managed database service. Amazon DocumentDB makes it easy to set up, operate, and scale MongoDB-compatible databases in the cloud. With Amazon DocumentDB, you can run the same application code and use the same drivers and tools that you use with MongoDB.
https://docs.aws.amazon.com/documentdb/latest/developerguide/what-is.html
NEW QUESTION # 201
A company currently stores 5 TB of data in on-premises block storage systems. The company's current storage solution provides limited space for additional data. The company runs applications on premises that must be able to retrieve frequently accessed data with low latency. The company requires a cloud-based storage solution.
Which solution will meet these requirements with the MOST operational efficiency?
Answer: B
Explanation:
The company needs a cloud-based storage solution for frequently accessed data with low latency, while retaining their current on-premises infrastructure for some data storage. AWS Storage Gateway's Volume Gateway with cached volumes is the most appropriate solution for this scenario.
* AWS Storage Gateway - Volume Gateway (Cached Volumes):
* Volume Gateway with cached volumes allows you to store frequently accessed data in the AWS Cloud while keeping the most recently accessed data cached locally on-premises. This ensures low-latency access to active data while providing scalability for the rest of the data in the cloud.
* The cached volume option stores the primary data in Amazon S3 but caches frequently accessed data locally, ensuring fast access. This configuration is well-suited for applications that require fast access to frequently used data but can tolerate cloud-based storage for the rest.
* Since the company is facing limited on-premises storage, cached volumes provide an ideal solution, as they reduce the need for additional on-premises storage infrastructure.
* Why Not the Other Options?:
* Option A (S3 File Gateway): S3 File Gateway provides a file-based interface (SMB/NFS) for storing data directly in S3. While it is great for file storage, the company's need for block-level storage with iSCSI targets makes Volume Gateway a better fit.
* Option C (Volume Gateway - Stored Volumes): Stored volumes keep all the data on-premises and asynchronously back up to AWS. This would not address the company's storage limitations since they would still need substantial on-premises storage.
* Option D (Tape Gateway): Tape Gateway is designed for archiving and backup, not for frequently accessed low-latency data.
AWS References:
* AWS Storage Gateway - Volume Gateway
NEW QUESTION # 202
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