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Download Amazon AWS Certified Solutions Architect - Associate (SAA-C03) Exam Exam Dumps
NEW QUESTION 30
A Solutions Architect is implementing a new High-Performance Computing (HPC) system in AWS that involves orchestrating several Amazon Elastic Container Service (Amazon ECS) tasks with an EC2 launch type that is part of an Amazon ECS cluster. The system will be frequently accessed by users around the globe and it is expected that there would be hundreds of ECS tasks running most of the time.
The Architect must ensure that its storage system is optimized for high-frequency read and write operations. The output data of each ECS task is around 10 MB but the obsolete data will eventually be archived and deleted so the total storage size won't exceed 10 TB.
Which of the following is the MOST suitable solution that the Architect should recommend?
- A. Set up an SMB file share by creating an Amazon FSx File Gateway in Storage Gateway. Set the file share as the container mount point in the ECS task definition of the Amazon ECS cluster.
- B. Launch an Amazon Elastic File System (Amazon EFS) with Provisioned Throughput mode and set the performance mode to Max I/O. Configure the EFS file system as the container mount point in the ECS task definition of the Amazon ECS cluster.
- C. Launch an Amazon Elastic File System (Amazon EFS) file system with Bursting Throughput mode and set the performance mode to General Purpose. Configure the EFS file system as the container mount point in the ECS task definition of the Amazon ECS cluster.
- D. Launch an Amazon DynamoDB table with Amazon DynamoDB Accelerator (DAX) and DynamoDB Streams enabled. Configure the table to be accessible by all Amazon ECS cluster instances. Set the DynamoDB table as the container mount point in the ECS task definition of the Amazon ECS cluster.
Answer: B
Explanation:
Amazon Elastic File System (Amazon EFS) provides simple, scalable file storage for use with your Amazon ECS tasks. With Amazon EFS, storage capacity is elastic, growing and shrinking automatically as you add and remove files. Your applications can have the storage they need when they need it.
You can use Amazon EFS file systems with Amazon ECS to access file system data across your fleet of Amazon ECS tasks. That way, your tasks have access to the same persistent storage, no matter the infrastructure or container instance on which they land. When you reference your Amazon EFS file system and container mount point in your Amazon ECS task definition, Amazon ECS takes care of mounting the file system in your container.
To support a wide variety of cloud storage workloads, Amazon EFS offers two performance modes:
- General Purpose mode
- Max I/O mode.
You choose a file system's performance mode when you create it, and it cannot be changed. The two performance modes have no additional costs, so your Amazon EFS file system is billed and metered the same, regardless of your performance mode.
There are two throughput modes to choose from for your file system:
- Bursting Throughput
- Provisioned Throughput
With Bursting Throughput mode, a file system's throughput scales as the amount of data stored in the EFS Standard or One Zone storage class grows. File-based workloads are typically spiky, driving high levels of throughput for short periods of time, and low levels of throughput the rest of the time. To accommodate this, Amazon EFS is designed to burst to high throughput levels for periods of time.
Provisioned Throughput mode is available for applications with high throughput to storage (MiB/s per TiB) ratios, or with requirements greater than those allowed by the Bursting Throughput mode. For example, say you're using Amazon EFS for development tools, web serving, or content management applications where the amount of data in your file system is low relative to throughput demands. Your file system can now get the high levels of throughput your applications require without having to pad your file system.
In the scenario, the file system will be frequently accessed by users around the globe so it is expected that there would be hundreds of ECS tasks running most of the time. The Architect must ensure that its storage system is optimized for high-frequency read and write operations.
Hence, the correct answer is: Launch an Amazon Elastic File System (Amazon EFS) with Provisioned Throughput mode and set the performance mode to Max I/O. Configure the EFS file system as the container mount point in the ECS task definition of the Amazon ECS cluster.
The option that says: Set up an SMB file share by creating an Amazon FSx File Gateway in Storage Gateway. Set the file share as the container mount point in the ECS task definition of the Amazon ECS cluster is incorrect. Although you can use an Amazon FSx for Windows File Server in this situation, it is not appropriate to use this since the application is not connected to an on-premises data center. Take note that the AWS Storage Gateway service is primarily used to integrate your existing on-premises storage to AWS.
The option that says: Launch an Amazon Elastic File System (Amazon EFS) file system with Bursting Throughput mode and set the performance mode to General Purpose. Configure the EFS file system as the container mount point in the ECS task definition of the Amazon ECS cluster is incorrect because using Bursting Throughput mode won't be able to sustain the constant demand of the global application.
Remember that the application will be frequently accessed by users around the world and there are hundreds of ECS tasks running most of the time.
The option that says: Launch an Amazon DynamoDB table with Amazon DynamoDB Accelerator (DAX) and DynamoDB Streams enabled. Configure the table to be accessible by all Amazon ECS cluster instances. Set the DynamoDB table as the container mount point in the ECS task definition of the Amazon ECS cluster is incorrect because you cannot directly set a DynamoDB table as a container mount point. In the first place, DynamoDB is a database and not a file system which means that it can't be "mounted" to a server.
References:
https://docs.aws.amazon.com/AmazonECS/latest/developerguide/tutorial-efs-volumes.html
https://docs.aws.amazon.com/efs/latest/ug/performance.html
https://docs.aws.amazon.com/AmazonECS/latest/developerguide/tutorial-wfsx-volumes.html Check out this Amazon EFS Cheat Sheet:
https://tutorialsdojo.com/amazon-efs/
NEW QUESTION 31
A company runs its Infrastructure on AWS and has a registered base of 700.000 users for res document management application The company intends to create a product that converts large pdf files to jpg Imago files. The .pdf files average 5 MB in size. The company needs to store the original files and the converted files.
A solutions architect must design a scalable solution to accommodate demand that will grow rapidly over lime.
Which solution meets these requirements MOST cost-effectively?
- A. Upload the .pdf files to an AWS Elastic Beanstalk application that includes Amazon EC2 instances, Amazon Elastic File System (Amazon EPS) storage, and an Auto Scaling group. Use a program in the EC2 instances to convert the file to jpg format Save the pdf files and the jpg files in the EBS store.
- B. Upload the pdf files to an AWS Elastic Beanstalk application that includes Amazon EC2 instances.
Amazon Elastic Block Store (Amazon EBS) storage and an Auto Scaling group. Use a program In the EC2 instances to convert the files to jpg format Save the .pdf files and the .jpg files In the EBS store. - C. Save the pdf files to Amazon DynamoDB. Use the DynamoDB Streams feature to invoke an AWS Lambda function to convert the files to jpg format and store them hack in DynamoDB
- D. Save the pdf files to Amazon S3 Configure an S3 PUT event to invoke an AWS Lambda function to convert the files to jpg format and store them back in Amazon S3
Answer: A
NEW QUESTION 32
A tech company is currently using Auto Scaling for their web application. A new AMI now needs to be used for launching a fleet of EC2 instances.
Which of the following changes needs to be done?
- A. Create a new target group.
- B. Create a new target group and launch configuration.
- C. Do nothing. You can start directly launching EC2 instances in the Auto Scaling group with the same launch configuration.
- D. Create a new launch configuration.
Answer: D
Explanation:
A launch configuration is a template that an Auto Scaling group uses to launch EC2 instances. When you create a launch configuration, you specify information for the instances such as the ID of the Amazon Machine Image (AMI), the instance type, a key pair, one or more security groups, and a block device mapping. If you've launched an EC2 instance before, you specified the same information in order to launch the instance.
You can specify your launch configuration with multiple Auto Scaling groups. However, you can only specify one launch configuration for an Auto Scaling group at a time, and you can't modify a launch configuration after you've created it. Therefore, if you want to change the launch configuration for an Auto Scaling group, you must create a launch configuration and then update your Auto Scaling group with the new launch configuration.
For this scenario, you have to create a new launch configuration. Remember that you can't modify a launch configuration after you've created it.
Hence, the correct answer is: Create a new launch configuration.
The option that says: Do nothing. You can start directly launching EC2 instances in the Auto Scaling group with the same launch configuration is incorrect because what you are trying to achieve is change the AMI being used by your fleet of EC2 instances. Therefore, you need to change the launch configuration to update what your instances are using.
The option that says: create a new target group and create a new target group and launch configuration are both incorrect because you only want to change the AMI being used by your instances, and not the instances themselves. Target groups are primarily used in ELBs and not in Auto Scaling. The scenario didn't mention that the architecture has a load balancer. Therefore, you should be updating your launch configuration, not the target group.
References:
http://docs.aws.amazon.com/autoscaling/latest/userguide/LaunchConfiguration.html
https://docs.aws.amazon.com/autoscaling/ec2/userguide/AutoScalingGroup.html Check out this AWS Auto Scaling Cheat Sheet: https://tutorialsdojo.com/aws-auto-scaling/
NEW QUESTION 33
A company is generating confidential data that is saved on their on-premises data center. As a backup solution, the company wants to upload their data to an Amazon S3 bucket. In compliance with its internal security mandate, the encryption of the data must be done before sending it to Amazon S3. The company must spend time managing and rotating the encryption keys as well as controlling who can access those keys.
Which of the following methods can achieve this requirement? (Select TWO.)
- A. Set up Server-Side Encryption with keys stored in a separate S3 bucket.
- B. Set up Server-Side Encryption (SSE) with EC2 key pair.
- C. Set up Client-Side Encryption using a client-side master key.
- D. Set up Client-Side Encryption with Amazon S3 managed encryption keys.
- E. Set up Client-Side Encryption with a customer master key stored in AWS Key Management Service (AWS KMS).
Answer: C,E
Explanation:
Data protection refers to protecting data while in-transit (as it travels to and from Amazon S3) and at rest (while it is stored on disks in Amazon S3 data centers). You can protect data in transit by using SSL or by using client-side encryption. You have the following options for protecting data at rest in Amazon S3: Use Server-Side Encryption - You request Amazon S3 to encrypt your object before saving it on disks in its data centers and decrypt it when you download the objects.
Use Server-Side Encryption with Amazon S3-Managed Keys (SSE-S3)
Use Server-Side Encryption with AWS KMS-Managed Keys (SSE-KMS)
Use Server-Side Encryption with Customer-Provided Keys (SSE-C)
Use Client-Side Encryption - You can encrypt data client-side and upload the encrypted data to Amazon S3. In this case, you manage the encryption process, the encryption keys, and related tools. Use Client- Side Encryption with AWS KMS-Managed Customer Master Key (CMK) Use Client-Side Encryption Using a Client-Side Master Key
Hence, the correct answers are:
- Set up Client-Side Encryption with a customer master key stored in AWS Key Management Service (AWS KMS).
- Set up Client-Side Encryption using a client-side master key.
The option that says: Set up Server-Side Encryption with keys stored in a separate S3 bucket is incorrect because you have to use AWS KMS to store your encryption keys or alternatively, choose an AWS- managed CMK instead to properly implement Server-Side Encryption in Amazon S3. In addition, storing any type of encryption key in Amazon S3 is actually a security risk and is not recommended.
The option that says: Set up Client-Side encryption with Amazon S3 managed encryption keys is incorrect because you can't have an Amazon S3 managed encryption key for client-side encryption. As its name implies, an Amazon S3 managed key is fully managed by AWS and also rotates the key automatically without any manual intervention. For this scenario, you have to set up a customer master key (CMK) in AWS KMS that you can manage, rotate, and audit or alternatively, use a client-side master key that you manually maintain.
The option that says: Set up Server-Side encryption (SSE) with EC2 key pair is incorrect because you can't use a key pair of your Amazon EC2 instance for encrypting your S3 bucket. You have to use a client-side master key or a customer master key stored in AWS KMS. References:
http://docs.aws.amazon.com/AmazonS3/latest/dev/UsingEncryption.html
https://docs.aws.amazon.com/AmazonS3/latest/dev/UsingClientSideEncryption.html Check out this Amazon S3 Cheat Sheet:
https://tutorialsdojo.com/amazon-s3/
NEW QUESTION 34
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