Question 1

A company operates an ecommerce website on Amazon EC2 instances behind an Application Load Balancer (ALB) in an Auto Scaling group. The site is experiencing performance issues related to a high request rate from illegitimate external systems with changing IP addresses. The security team is worried about potential DDoS attacks against the website. The company must block the illegitimate incoming requests in a way that has a minimal impact on legitimate users. What should a solutions architect recommend?

Options :

A : Deploy Amazon Inspector and associate it with the ALB.

B : Deploy AWS WAF, associate it with the ALB, and configure a rate-limiting rule.

C :

Deploy rules to the network ACLs associated with the ALB to block the incoming traffic.

D : Deploy Amazon GuardDuty and enable rate-limiting protection when configuring GuardDuty.

Answer: B

Question 2

A company installed sensors to track the number of people who visit the park. The data is sent every day to an Amazon Kinesis stream with default settings for processing, in which a consumer is configured to process the data every other day. You noticed that the S3 bucket is not receiving all of the data that is being sent to the Kinesis stream. You checked the sensors if they are properly sending the data to Amazon Kinesis and verified that the data is indeed sent every day.

What could be the reason for this?

Options :

A : Your AWS account was hacked and someone has deleted some data in your Kinesis stream.

B :

By default, Amazon S3 stores the data for 1 day and moves it to Amazon Glacier.

C : By default, the data records are only accessible for 24 hours from the time they are added to a Kinesis stream.

D :

There is a problem in the sensors. They probably had some intermittent connection hence, the data is not sent to the stream.

Answer: C

Question 3

Both historical records and frequently accessed data are stored on an on-premises storage system. The amount of current data is growing at an exponential rate. As the storage’s capacity is nearing its limit, the company’s Solutions Architect has decided to move the historical records to AWS to free up space for the active data.

Which of the following architectures deliver the best solution in terms of cost and operational management?

Options :

A : Use AWS Storage Gateway to move the historical records from on-premises to AWS. Choose Amazon S3 Glacier to be the destination for the data. Modify the S3 lifecycle configuration to move the data from the Standard tier to Amazon S3 Glacier Deep Archive after 30 days.

B : Use AWS DataSync to move the historical records from on-premises to AWS. Choose Amazon S3 Standard to be the destination for the data. Modify the S3 lifecycle configuration to move the data from the Standard tier to Amazon S3 Glacier Deep Archive after 30 days.

C : Use AWS DataSync to move the historical records from on-premises to AWS. Choose Amazon S3 Glacier Deep Archive to be the destination for the data.

D : Use AWS Storage Gateway to move the historical records from on-premises to AWS. Choose Amazon S3 Glacier Deep Archive to be the destination for the data.

Answer: C

Question 4

A company recently deployed a new auditing system to centralize information about operating system versions patching and installed software for Amazon EC2 instances. A solutions architect must ensure all instances provisioned through EC2 Auto Scaling groups successfully send reports to the auditing system as soon as they are launched and terminated

Which solution achieves these goals MOST efficiently?

Options :

A : Use a scheduled AWS Lambda function and run a script remotely on all EC2 instances to send data to the audit system.

B : Use EC2 Auto Scaling lifecycle hooks to run a custom script to send data to the audit system when instances are launched and terminated

C : Use an EC2 Auto Scaling launch configuration to run a custom script through user data to send data to the audit system when instances are launched and terminated

D : Run a custom script on the instance operating system to send data to the audit system Configure the script to be invoked by the EC2 Auto Scaling group when the instance starts and is terminated

Answer: B

Question 5

A company is moving its data management application to AWS. The company wants to transition to an event-driven architecture. The architecture needs to the more distributed and to use serverless concepts whit performing the different aspects of the workflow. The company also wants to minimize operational overhead.

Which solution will meet these requirements?

Options :

A : Build out the workflow in AWS Glue Use AWS Glue to invoke AWS Lambda functions to process the workflow slaps

B : Build out the workflow in AWS Step Functions Deploy the application on Amazon EC2 Instances Use Step Functions to invoke the workflow steps on the EC2 instances

C : Build out the workflow in Amazon EventBridge. Use EventBridge to invoke AWS Lambda functions on a schedule to process the workflow steps.

D : Build out the workflow m AWS Step Functions Use Step Functions to create a stale machine Use the stale machine to invoke AWS Lambda functions to process the workflow steps

Answer: D

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