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Amazon SAA-C03 (Amazon AWS Certified Solutions Architect - Associate (SAA-C03)) Exam is a certification exam designed for professionals who want to validate their expertise in designing and deploying scalable, highly available, and fault-tolerant systems on the Amazon Web Services (AWS) platform. SAA-C03 Exam Tests the candidate's knowledge and skills in various AWS services, including compute, storage, networking, security, database, and application services. The SAA-C03 exam is an updated version of the previous SAA-C02 exam, which includes the latest AWS services and best practices.
NEW QUESTION # 766
[Design High-Performing Architectures]
A company has implemented a self-managed DNS service on AWS. The solution consists of the following:
* Amazon EC2 instances in different AWS Regions
* Endpomts of a standard accelerator m AWS Global Accelerator
The company wants to protect the solution against DDoS attacks What should a solutions architect do to meet this requirement?
Answer: D
Explanation:
AWS Shield is a managed service that provides protection against Distributed Denial of Service (DDoS) attacks for applications running on AWS. AWS Shield Standard is automatically enabled to all AWS customers at no additional cost. AWS Shield Advanced is an optional paid service. AWS Shield Advanced provides additional protections against more sophisticated and larger attacks for your applications running on Amazon Elastic Compute Cloud (EC2), Elastic Load Balancing (ELB), Amazon CloudFront, AWS Global Accelerator, and Route 53.
https://docs.aws.amazon.com/waf/latest/developerguide/ddos-event-mitigation-logic-gax.html
NEW QUESTION # 767
A company is planning to use an Amazon DynamoDB table for data storage. The company is concerned about cost optimization. The table will not be used on most mornings. In the evenings, the read and write traffic will often be unpredictable. When traffic spikes occur, they will happen very quickly. What should a solutions architect recommend?
Answer: C
Explanation:
On-demand mode is a good option if any of the following are true:
- You create new tables with unknown workloads.
- You have unpredictable application traffic.
- You prefer the ease of paying for only what you use.
NEW QUESTION # 768
A company recently migrated its application to AWS. The application runs on Amazon EC2 Linux instances in an Auto Scaling group across multiple Availability Zones. The application stores data in an Amazon Elastic File System (Amazon EFS) file system that uses EFS Standard-Infrequent Access storage. The application indexes the company ' s files, and the index is stored in an Amazon RDS database.
The company needs to optimize storage costs with some application and services changes.
Which solution will meet these requirements MOST cost-effectively?
Answer: A
Explanation:
To optimize storage costs, migrating data from Amazon EFS to Amazon S3 with the Intelligent-Tiering storage class is a cost-effective solution.
Amazon S3 Intelligent-Tiering: This storage class automatically moves data between frequent, infrequent, and archive access tiers based on access patterns, reducing storage costs without impacting performance.
Cost Savings: By leveraging Intelligent-Tiering, the company can achieve significant cost savings, especially for data with unpredictable access patterns.
Application Update: The application must be updated to interact with Amazon S3 APIs for storing and retrieving files, ensuring seamless integration with the new storage solution.
This approach provides a scalable, durable, and cost-effective storage solution, aligning with the company ' s optimization goals.
References:
Amazon S3 Intelligent-Tiering Storage Class
Managing storage costs with Amazon S3 Intelligent-Tiering
NEW QUESTION # 769
A company needs to migrate a MySQL database from its on-premises data center to AWS within 2 weeks. The database is 20 TB in size. The company wants to complete the migration with minimal downtime.
Which solution will migrate the database MOST cost-effectively?
Answer: A
Explanation:
This answer is correct because it meets the requirements of migrating a 20 TB MySQL database within 2 weeks with minimal downtime and cost-effectively. The AWS Snowball Edge Storage Optimized device has up to 80 TB of usable storage space, which is enough to fit the database. The AWS Database Migration Service (AWS DMS) can migrate data from MySQL to Amazon Aurora, Amazon RDS for MySQL, or MySQL on Amazon EC2 with minimal downtime by continuously replicating changes from the source to the target. The AWS Schema Conversion Tool (AWS SCT) can convert the source schema and code to a format compatible with the target database. By using these services together, the company can migrate the database to AWS with minimal downtime and cost. The Snowball Edge device can be shipped back to AWS to finish the migration and continue the ongoing replication until the database is fully migrated.
References:
https://docs.aws.amazon.com/snowball/latest/developer-guide/device-differences.html
https://docs.aws.amazon.com/dms/latest/userguide/CHAP_Source.MySQL.html
https://docs.aws.amazon.com/SchemaConversionTool/latest/userguide/CHAP_Source.MySQL.htm
NEW QUESTION # 770
A company has a web application hosted in AWS cloud where the application logs are sent to Amazon CloudWatch. Lately, the web application has recently been encountering some errors which can be resolved simply by restarting the instance.
What will you do to automatically restart the EC2 instances whenever the same application error occurs?
Answer: A
Explanation:
In this scenario, you can look at the existing CloudWatch logs for keywords related to the application error to create a custom metric. Then, create a CloudWatch alarm for that custom metric which invokes an action to restart the EC2 instance.
You can create alarms that automatically stop, terminate, reboot, or recover your EC2 instances using Amazon CloudWatch alarm actions. You can use the stop or terminate actions to help you save money when you no longer need an instance to be running. You can use the reboot and recover actions to automatically reboot those instances or recover them onto new hardware if a system impairment occurs.
Hence, the correct answer is: First, look at the existing CloudWatch logs for keywords related to the application error to create a custom metric. Then, create a CloudWatch alarm for that custom metric which invokes an action to restart the EC2 instance.
The option that says: First, look at the existing CloudWatch logs for keywords related to the application error to create a custom metric. Then, create an alarm in Amazon SNS for that custom metric which invokes an action to restart the EC2 instance is incorrect because you can't create an alarm in Amazon SNS.
The following options are incorrect because Flow Logs are used in VPC and not on specific EC2 instance:
- First, look at the existing Flow logs for keywords related to the application error to create a custom metric. Then, create a CloudWatch alarm for that custom metric which invokes an action to restart the EC2 instance.
First, look at the existing Flow logs for keywords related to the application error to create a custom metric. Then, create a CloudWatch alarm for that custom metric which calls a Lambda function that invokes an action to restart the EC2 instance.
Explanation:
Reference:
https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/UsingAlarmActions.html Check out this Amazon CloudWatch Cheat Sheet: https://tutorialsdojo.com/amazon-cloudwatch/
NEW QUESTION # 771
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