A company has a mutt-tier application deployed on several Amazon EC2 instances m an Auto Scaling group. An Amazon RDS for Oracle instance is the application's data layer that uses Oracle-specific
PL/'SQL functions. Traffic to the application has been steadily Increasing. This is causing the EC2 instances to become overloaded and the RDS instance to run out of storage. The Auto Scaling group does not have any scaling metrics and defines the minimum healthy instance count only. The company predicts that traffic will continue to increase at a steady but unpredictable rate before levelling off.
What should a solutions architect do to ensure the system can automatically scale for the increased traffic? (Select TWO.)

• A.Configure an alarm on the RDS for Oracle Instance for low free storage space
• B.Configure storage Auto Scaling on the RDS for Oracle Instance.
• C.Migrate the database to Amazon Aurora to use Auto Scaling storage.
• D.Configure the Auto Scaling group to use the average CPU as the scaling metric
• E.Configure the Auto Scaling group to use the average free memory as the seeing metric

Comment: *

Name: *

Email: *

Verification: *

A company has an application workflow that uses an AWS Lambda function to download and decrypt files from Amazon S3. These files are encrypted using AWS Key Management Service Customer Master Keys (AWS KMS CMKs).
A solutions architect needs to design a solution that will ensure the required permissions are set correctly.
Which combination of actions accomplish this? (Select TWO.)

• A.Grant the decrypt permission for the Lambda resource policy in the KMS key's policy.
• B.Grant the decrypt permission for the Lambda IAM role in the KMS key's policy.
• C.Create a new IAM role with the kms decrypt permission and attach the execution role to the Lambda function.
• D.Create a new IAM policy with the kms:decrypt permission and attach the policy to the Lambda function.
• E.Attach the kms.decrypt permission to the Lambda function's resource policy.

Comment: *

Name: *

Email: *

Verification: *

A company wants to run an in-memory database for a latency-sensitive application that runs on Amazon EC2 instances. The application processes more than 100,000 transactions each minute and requires high network throughput. A solutions architect needs to provide a cost-effective network design that minimizes data transfer charges.
Which solution meets these requirements?

• A.Launch all EC2 instances in different Availability Zones within the same AWS Region. Specify a placement group with partition strategy when launching EC2 instances.
• B.Deploy an Auto Scaling group with a step scaling policy to launch EC2 instances in different Availability Zones.
• C.Deploy an Auto Scaling group to launch EC2 instances in different Availability Zones based on a network utilization target.
• D.Launch all EC2 instances in the same Availability Zone within the same AWS Region. Specify a placement group with cluster strategy when launching EC2 instances.

Comment: *

Name: *

Email: *

Verification: *

A solutions architect must analyze and update a company's existing IAM policies prior to deploying a new workload. The solutions architect created the following policy:

What is the net effect of this policy?

• A.Users will be denied all actions except s3;PutObject if multi-factor authentication (MFA) is enabled.
• B.Users win be denied all actions except s3:PutObject if multi-factor authentication (MFA) is not enabled.
• C.Users will be allowed all actions except s3 PutObject if multi-factor authentication (MFA) is enabled
• D.Users win be allowed all actions except s3 PutObject if multi-factor authentication (MFA) is not enabled

Comment: *

Name: *

Email: *

Verification: *

A company is hosting a web application on AWS using a single Amazon EC2 instance that stores user-uploaded documents in an Amazon EBS volume For better scalability and availability the company duplicated the architecture and created a second EC2 instance and EBS volume in another Availability Zone:
placing both behind an Application Load Balancer After completing this change users reported that each time they refreshed the website they could see one subset of their documents or the other but never all of the documents at the same time What should a solutions architect propose to ensure users see all of their documents at once?

• A.Copy the data so both EBS volumes contain all the documents
• B.Configure the Application Load Balancer to direct a user to the server with the documents
• C.Copy the data from both EBS volumes to Amazon EFS Modify the application to save new documents to Amazon EFS
• D.Configure the Application Load Balancer to send the request to both servers Return each document from the correct server

Correct Answer: C

Explanation
https://docs.aws.amazon.com/efs/latest/ug/how-it-works.html#how-it-works-ec2 Amazon EFS provides file storage in the AWS Cloud. With Amazon EFS, you can create a file system, mount the file system on an Amazon EC2 instance, and then read and write data to and from your file system. You can mount an Amazon EFS file system in your VPC, through the Network File System versions 4.0 and 4.1 (NFSv4) protocol. We recommend using a current generation Linux NFSv4.1 client, such as those found in the latest Amazon Linux, Redhat, and Ubuntu AMIs, in conjunction with the Amazon EFS Mount Helper. For instructions, see Using the amazon-efs-utils Tools.
For a list of Amazon EC2 Linux Amazon Machine Images (AMIs) that support this protocol, see NFS Support. For some AMIs, you'll need to install an NFS client to mount your file system on your Amazon EC2 instance. For instructions, see Installing the NFS Client.
You can access your Amazon EFS file system concurrently from multiple NFS clients, so applications that scale beyond a single connection can access a file system. Amazon EC2 instances running in multiple Availability Zones within the same AWS Region can access the file system, so that many users can access and share a common data source.
How Amazon EFS Works with Amazon EC2

https://docs.aws.amazon.com/efs/latest/ug/how-it-works.html#how-it-works-ec2

Comment: *

Name: *

Email: *

Verification: *