Quiz Amazon - Professional SAA-C03 Valid Braindumps Questions

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Amazon AWS Certified Solutions Architect - Associate Sample Questions (Q749-Q754):

NEW QUESTION # 749
A company wants to migrate its on-premises Microsoft SQL Server Enterprise edition database to AWS. The company's online application uses the database to process transactions. The data analysis team uses the same production database to run reports for analytical processing. The company wants to reduce operational overhead by moving to managed services wherever possible.
Which solution will meet these requirements with the LEAST operational overhead?

A. Migrate to Amazon DynamoDB. Use DynamoDB on-demand replicas for reporting purposes.
B. Migrate to Amazon Aurora MySQL. Use Aurora read replicas for reporting purposes.
C. Migrate to Microsoft SQL Server on Amazon EC2. Use Always On read replicas for reporting purposes.
D. Migrate to Amazon RDS for Microsoft SQL Server. Use read replicas for reporting purposes.

Answer: D

Explanation:
Amazon RDS for Microsoft SQL Server is a fully managed service that offers SQL Server 2014, 2016, 2017, and 2019 editions while offloading database administration tasks such as backups, patching, and scaling. Amazon RDS supports read replicas, which are read-only copies of the primary database that can be used for reporting purposes without affecting the performance of the online application. This solution will meet the requirements with the least operational overhead, as it does not require any code changes or manual intervention.
Reference:
1 provides an overview of Amazon RDS for Microsoft SQL Server and its benefits.
2 explains how to create and use read replicas with Amazon RDS.

NEW QUESTION # 750
A leading e-commerce company is in need of a storage solution that can be simultaneously accessed by 1000 Linux servers in multiple availability zones. The servers are hosted in EC2 instances that use a hierarchical directory structure via the NFSv4 protocol. The service should be able to handle the rapidly changing data at scale while still maintaining high performance. It should also be highly durable and highly available whenever the servers will pull data from it, with little need for management.
As the Solutions Architect, which of the following services is the most cost-effective choice that you should use to meet the above requirement?

A. Storage Gateway
B. EBS
C. EFS
D. S3

Answer: C

Explanation:
Amazon Web Services (AWS) offers cloud storage services to support a wide range of storage workloads such as EFS, S3 and EBS. You have to understand when you should use Amazon EFS, Amazon S3 and Amazon Elastic Block Store (EBS) based on the specific workloads. In this scenario, the keywords are rapidly changing data and 1000 Linux servers.
Amazon EFS is a file storage service for use with Amazon EC2. Amazon EFS provides a file system interface, file system access semantics (such as strong consistency and file locking), and concurrently- accessible storage for up to thousands of Amazon EC2 instances. EFS provides the same level of high availability and high scalability like S3 however, this service is more suitable for scenarios where it is required to have a POSIX-compatible file system or if you are storing rapidly changing data.

Data that must be updated very frequently might be better served by storage solutions that take into account read and write latencies, such as Amazon EBS volumes, Amazon RDS, Amazon DynamoDB, Amazon EFS, or relational databases running on Amazon EC2.
Amazon EBS is a block-level storage service for use with Amazon EC2. Amazon EBS can deliver performance for workloads that require the lowest-latency access to data from a single EC2 instance.
Amazon S3 is an object storage service. Amazon S3 makes data available through an Internet API that can be accessed anywhere.
In this scenario, EFS is the best answer. As stated above, Amazon EFS provides a file system interface, file system access semantics (such as strong consistency and file locking), and concurrently-accessible storage for up to thousands of Amazon EC2 instances. EFS provides the performance, durability, high availability, and storage capacity needed by the 1000 Linux servers in the scenario.
S3 is incorrect because although this provides the same level of high availability and high scalability like EFS, this service is not suitable for storing data which are rapidly changing, just as mentioned in the above explanation. It is still more effective to use EFS as it offers strong consistency and file locking which the S3 service lacks.
EBS is incorrect because an EBS Volume cannot be shared by multiple instances.
Storage Gateway is incorrect because this is primarily used to extend the storage of your on-premises data center to your AWS Cloud.
References:
https://docs.aws.amazon.com/efs/latest/ug/how-it-works.html
https://aws.amazon.com/efs/features/
https://d1.awsstatic.com/whitepapers/AWS%20Storage%20Services%20Whitepaper-v9.pdf#page=9 Check out this Amazon EFS Cheat Sheet:
https://tutorialsdojo.com/amazon-efs/

NEW QUESTION # 751
A company is building an ecommerce web application on AWS. The application sends information about new orders to an Amazon API Gateway REST API to process. The company wants to ensure that orders are processed in the order that they are received.
Which solution will meet these requirements?

A. Use an API Gateway authorizer to block any requests while the application processes an order.
B. Use an API Gateway integration to publish a message to an Amazon Simple Notification Service (Amazon SNS) topic when the application receives an order. Subscribe an AWS Lambda function to the topic to perform processing.
C. Use an API Gateway integration to send a message to an Amazon Simple Queue Service (Amazon SQS) FIFO queue when the application receives an order. Configure the SQS FIFO queue to invoke an AWS Lambda function for processing.
D. Use an API Gateway integration to send a message to an Amazon Simple Queue Service (Amazon SQS) standard queue when the application receives an order. Configure the SQS standard queue to invoke an AWS Lambda function for processing.

Answer: B

NEW QUESTION # 752
[Design Secure Architectures]
A company operates a two-tier application for image processing. The application uses two Availability Zones, each with one public subnet and one private subnet. An Application Load Balancer (ALB) for the web tier uses the public subnets. Amazon EC2 instances for the application tier use the private subnets.
Users report that the application is running more slowly than expected. A security audit of the web server log files shows that the application is receiving millions of illegitimate requests from a small number of IP addresses. A solutions architect needs to resolve the immediate performance problem while the company investigates a more permanent solution.
What should the solutions architect recommend to meet this requirement?

A. Modify the inbound security group for the web tier. Add a deny rule for the IP addresses that are consuming resources.
B. Modify the inbound security group for the application tier. Add a deny rule for the IP addresses that are consuming resources.
C. Modify the network ACL for the web tier subnets. Add an inbound deny rule for the IP addresses that are consuming resources
D. Modify the network ACL for the application tier subnets. Add an inbound deny rule for the IP addresses that are consuming resources

Answer: C

Explanation:
Deny the request from the first entry at the public subnet, dont allow it to cross and get to the private subnet.
In this scenario, the security audit reveals that the application is receiving millions of illegitimate requests from a small number of IP addresses. To address this issue, it is recommended to modify the network ACL (Access Control List) for the web tier subnets. By adding an inbound deny rule specifically targeting the IP addresses that are consuming resources, the network ACL can block the illegitimate traffic at the subnet level before it reaches the web servers. This will help alleviate the excessive load on the web tier and improve the application's performance.

NEW QUESTION # 753
A company's HTTP application is behind a Network Load Balancer (NLB). The NLB's target group is configured to use an Amazon EC2 Auto Scaling group with multiple EC2 instances that run the web service.
The company notices that the NLB is not detecting HTTP errors for the application. These errors require a manual restart of the EC2 instances that run the web service. The company needs to improve the application's availability without writing custom scripts or code.
What should a solutions architect do to meet these requirements?

A. Add a cron job to the EC2 instances to check the local application's logs once each minute. If HTTP errors are detected, the application will restart.
B. Replace the NLB with an Application Load Balancer. Enable HTTP health checks by supplying the URL of the company's application. Configure an Auto Scaling action to replace unhealthy instances.
C. Enable HTTP health checks on the NLB. supplying the URL of the company's application.
D. Create an Amazon Cloud Watch alarm that monitors the UnhealthyHostCount metric for the NLB.
Configure an Auto Scaling action to replace unhealthy instances when the alarm is in the ALARM state.

Answer: B

NEW QUESTION # 754
......

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QUIZ AMAZON - PROFESSIONAL SAA-C03 VALID BRAINDUMPS QUESTIONS

Quiz Amazon - Professional SAA-C03 Valid Braindumps Questions