FIRST-GRADE SAA-C03 VALID EXAM REVIEW - PASS SAA-C03 EXAM

First-grade SAA-C03 Valid Exam Review - Pass SAA-C03 Exam

First-grade SAA-C03 Valid Exam Review - Pass SAA-C03 Exam

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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.

Amazon AWS Certified Solutions Architect - Associate (SAA-C03) Exam Sample Questions (Q176-Q181):

NEW QUESTION # 176
A company maintains a searchable repository of items on its website. The data is stored in an Amazon RDS for MySQL database table that contains more than 10 million rows The database has 2 TB of General Purpose SSD storage There are millions of updates against this data every day through the company's website The company has noticed that some insert operations are taking 10 seconds or longer The company has determined that the database storage performance is the problem Which solution addresses this performance issue?

  • A. Change the DB instance to a memory optimized instance class
  • B. Enable Multi-AZ RDS read replicas with MySQL native asynchronous replication.
  • C. Change the DB instance to a burstable performance instance class
  • D. Change the storage type to Provisioned IOPS SSD

Answer: D

Explanation:
Explanation
https://aws.amazon.com/ebs/features/
"Provisioned IOPS volumes are backed by solid-state drives (SSDs) and are the highest performance EBS volumes designed for your critical, I/O intensive database applications. These volumes are ideal for both IOPS-intensive and throughput-intensive workloads that require extremely low latency."


NEW QUESTION # 177
A manufacturing company has machine sensors that upload .csv files to an Amazon S3 bucket. These .csv files must be converted into images and must be made available as soon as possible for the automatic generation of graphical reports.
The images become irrelevant after 1 month, but the .csv files must be kept to train machine learning (ML) models twice a year. The ML trainings and audits are planned weeks in advance.
Which combination of steps will meet these requirements MOST cost-effectively? (Select TWO.)

  • A. Create S3 Lifecycle rules for .csv files and image files in the S3 bucket. Transition the .csv files from S3 Standard to S3 Standard-Infrequent Access (S3 Standard-IA) 1 day after they are uploaded. Keep the image files in Reduced Redundancy Storage (RRS).
  • B. Launch an Amazon EC2 Spot Instance that downloads the .csv files every hour, generates the image files, and uploads the images to the S3 bucket.
  • C. Design an AWS Lambda function that converts the .csv files into images and stores the images in the S3 bucket. Invoke the Lambda function when a .csv file is uploaded.
  • D. Create S3 Lifecycle rules for .csv files and image files in the S3 bucket. Transition the .csv files from S3 Standard to S3 Glacier 1 day after they are uploaded. Expire the image files after 30 days.
  • E. Create S3 Lifecycle rules for .csv files and image files in the S3 bucket. Transition the .csv files from S3 Standard to S3 One Zone-Infrequent Access (S3 One Zone-IA) 1 day after they are uploaded. Expire the image files after 30 days.

Answer: C,D

Explanation:
These answers are correct because they meet the requirements of converting the .csv files into images, making them available as soon as possible, and minimizing the storage costs. AWS Lambda is a service that lets you run code without provisioning or managing servers. You can use AWS Lambda to design a function that converts the .csv files into images and stores the images in the S3 bucket. You can invoke the Lambda function when a .csv file is uploaded to the S3 bucket by using an S3 event notification. This way, you can ensure that the images are generated and made available as soon as possible for the graphical reports. S3 Lifecycle is a feature that enables you to manage your objects so that they are stored cost effectively throughout their lifecycle. You can create S3 Lifecycle rules for .csv files and image files in the S3 bucket to transition them to different storage classes or expire them based on your business needs. You can transition the .csv files from S3 Standard to S3 Glacier 1 day after they are uploaded, since they are only needed twice a year for ML trainings and audits that are planned weeks in advance. S3 Glacier is a storage class for data archiving that offers secure, durable, and extremely low-cost storage with retrieval times ranging from minutes to hours. You can expire the image files after 30 days, since they become irrelevant after 1 month.
References:
* https://docs.aws.amazon.com/lambda/latest/dg/welcome.html
* https://docs.aws.amazon.com/AmazonS3/latest/userguide/NotificationHowTo.html
* https://docs.aws.amazon.com/AmazonS3/latest/userguide/object-lifecycle-mgmt.html
* https://docs.aws.amazon.com/AmazonS3/latest/userguide/storage-class-intro.html#sc-glacier


NEW QUESTION # 178
A company has 10 TB of infrequently accessed financial data files that would need to be stored in AWS. These data would be accessed infrequently during specific weeks when they are retrieved for auditing purposes. The retrieval time is not strict as long as it does not exceed 24 hours.
Which of the following would be a secure, durable, and cost-effective solution for this scenario?

  • A. Upload the data to S3 and set a lifecycle policy to transition data to Glacier after 0 days.
  • B. Upload the data to S3 then use a lifecycle policy to transfer data to S3-IA.
  • C. Upload the data to S3 then use a lifecycle policy to transfer data to S3 One Zone-IA.
  • D. Upload the data to Amazon FSx for Windows File Server using the Server Message Block (SMB) protocol.

Answer: A

Explanation:
Glacier is a cost-effective archival solution for large amounts of data. Bulk retrievals are S3 Glacier's lowest-cost retrieval option, enabling you to retrieve large amounts, even petabytes, of data inexpensively in a day. Bulk retrievals typically complete within 5 - 12 hours. You can specify an absolute or relative time period (including 0 days) after which the specified Amazon S3 objects should be transitioned to Amazon Glacier.
Hence, the correct answer is the option that says: Upload the data to S3 and set a lifecycle policy to transition data to Glacier after 0 days.
Glacier has a management console that you can use to create and delete vaults. However, you cannot directly upload archives to Glacier by using the management console. To upload data such as photos, videos, and other documents, you must either use the AWS CLI or write code to make requests by using either the REST API directly or by using the AWS SDKs.
Take note that uploading data to the S3 Console and setting its storage class of "Glacier" is a different story as the proper way to upload data to Glacier is still via its API or CLI. In this way, you can set up your vaults and configure your retrieval options. If you uploaded your data using the S3 console then it will be managed via S3 even though it is internally using a Glacier storage class.
Uploading the data to S3 then using a lifecycle policy to transfer data to S3-IA is incorrect because using Glacier would be a more cost-effective solution than using S3-IA. Since the required retrieval period should not exceed more than a day, Glacier would be the best choice.
Uploading the data to Amazon FSx for Windows File Server using the Server Message Block (SMB) protocol is incorrect because this option costs more than Amazon Glacier, which is more suitable for storing infrequently accessed data. Amazon FSx for Windows File Server provides fully managed, highly reliable, and scalable file storage that is accessible over the industry-standard Server Message Block (SMB) protocol.
Uploading the data to S3 then using a lifecycle policy to transfer data to S3 One Zone-IA is incorrect because with S3 One Zone-IA, the data will only be stored in a single availability zone and thus, this storage solution is not durable. It also costs more compared to Glacier. References:
https://aws.amazon.com/glacier/faqs/
https://docs.aws.amazon.com/AmazonS3/latest/dev/object-lifecycle-mgmt.html
https://docs.aws.amazon.com/amazonglacier/latest/dev/uploading-an-archive.html Amazon S3 and S3 Glacier Overview:
https://www.youtube.com/watch?v=1ymyeN2tki4
Check out this Amazon S3 Glacier Cheat Sheet:
https://tutorialsdojo.com/amazon-glacier/


NEW QUESTION # 179
A solutions architect is designing a VPC with public and private subnets. The VPC and subnets use IPv4 CIDR blocks. There is one public subnet and one private subnet in each of three Availability Zones (AZs) for high availability. An internet gateway is used to provide internet access for the public subnets. The private subnets require access to the internet to allow Amazon EC2 instances to download software updates.
What should the solutions architect do to enable Internet access for the private subnets?

  • A. Create an egress-only internet gateway on one of the public subnets. Update the route table for the private subnets that forward non-VPC traffic to the egress- only internet gateway.
  • B. Create three NAT gateways, one for each public subnet in each AZ. Create a private route table for each AZ that forwards non-VPC traffic to the NAT gateway in its AZ.
  • C. Create a second internet gateway on one of the private subnets. Update the route table for the private subnets that forward non-VPC traffic to the private internet gateway.
  • D. Create three NAT instances, one for each private subnet in each AZ. Create a private route table for each AZ that forwards non-VPC traffic to the NAT instance in its AZ.

Answer: B

Explanation:
https://aws.amazon.com/about-aws/whats-new/2018/03/introducing-amazon-vpc-nat-gateway-in-the-aws-govclo
https://docs.aws.amazon.com/vpc/latest/userguide/vpc-nat-comparison.html


NEW QUESTION # 180
A media company hosts its website on AWS. The website application's architecture includes a fleet of Amazon EC2 instances behind an Application Load Balancer (ALB) and a database that is hosted on Amazon Aurora The company's cyber security teem reports that the application is vulnerable to SOL injection.
How should the company resolve this issue?

  • A. Use AWS WAF in front of the ALB Associate the appropriate web ACLs with AWS WAF.
  • B. Subscribe to AWS Shield Advanced to block all SQL injection attempts automatically.
  • C. Set up Amazon Inspector to block all SOL injection attempts automatically
  • D. Create an ALB listener rule to reply to SQL injection with a fixed response

Answer: A


NEW QUESTION # 181
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