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Free AWS Certified Security - Specialty Exam Braindumps (page: 19)

Page 19 of 63
PDF with 249 Questions

A company's on-premises networks are connected to VPCs using an IAM Direct Connect gateway. The company's on-premises application needs to stream data using an existing Amazon Kinesis Data Firehose delivery stream. The company's security policy requires that data be encrypted in transit using a private network.

How should the company meet these requirements?

  1. Create a VPC endpoint tor Kinesis Data Firehose. Configure the application to connect to the VPC endpoint.
  2. Configure an IAM policy to restrict access to Kinesis Data Firehose using a source IP condition.
    Configure the application to connect to the existing Firehose delivery stream.
  3. Create a new TLS certificate in IAM Certificate Manager (ACM). Create a public-facing Network Load Balancer (NLB) and select the newly created TLS certificate. Configure the NLB to forward all traffic to Kinesis Data Firehose. Configure the application to connect to the NLB.
  4. Peer the on-premises network with the Kinesis Data Firehose VPC using Direct Connect. Configure the application to connect to the existing Firehose delivery stream.

Answer(s): A

Explanation:

To stream data using an existing Amazon Kinesis Data Firehose delivery stream and encrypt it in transit using a private network, the company should do the following:

Create a VPC endpoint for Kinesis Data Firehose. This allows the company to use a private connection between their VPC and Kinesis Data Firehose without requiring an internet gateway or NAT device.

Configure the application to connect to the VPC endpoint. This allows the application to stream data using Kinesis Data Firehose over AWS PrivateLink, which encrypts all traffic with TLS.



A company has implemented IAM WAF and Amazon CloudFront for an application. The application runs on Amazon EC2 instances that are part of an Auto Scaling group. The Auto Scaling group is behind an Application Load Balancer (ALB).

The IAM WAF web ACL uses an IAM Managed Rules rule group and is associated with the CloudFront distribution. CloudFront receives the request from IAM WAF and then uses the ALB as the distribution's origin.

During a security review, a security engineer discovers that the infrastructure is susceptible to a large, layer 7 DDoS attack.

How can the security engineer improve the security at the edge of the solution to defend against this type of attack?

  1. Configure the CloudFront distribution to use the Lambda@Edge feature. Create an IAM Lambda function that imposes a rate limit on CloudFront viewer requests. Block the request if the rate limit is exceeded.
  2. Configure the IAM WAF web ACL so that the web ACL has more capacity units to process all IAM WAF rules faster.
  3. Configure IAM WAF with a rate-based rule that imposes a rate limit that automatically blocks requests when the rate limit is exceeded.
  4. Configure the CloudFront distribution to use IAM WAF as its origin instead of the ALB.

Answer(s): C

Explanation:

To improve the security at the edge of the solution to defend against a large, layer 7 DDoS attack, the security engineer should do the following:

Configure AWS WAF with a rate-based rule that imposes a rate limit that automatically blocks requests when the rate limit is exceeded. This allows the security engineer to use a rule that tracks the number of requests from a single IP address and blocks subsequent requests if they exceed a specified threshold within a specified time period.



A security engineer needs to create an Amazon S3 bucket policy to grant least privilege read access to IAM user accounts that are named User=1, User2. and User3. These IAM user accounts are members of the AuthorizedPeople IAM group. The security engineer drafts the following S3 bucket policy:



When the security engineer tries to add the policy to the S3 bucket, the following error message appears: "Missing required field Principal." The security engineer is adding a Principal element to the policy. The addition must provide read access to only User1. User2, and User3.
Which solution meets these requirements?









Answer(s): A



A company is building an application on IAM that will store sensitive Information. The company has a support team with access to the IT infrastructure, including databases. The company's security engineer must introduce measures to protect the sensitive data against any data breach while minimizing management overhead. The credentials must be regularly rotated.

What should the security engineer recommend?

  1. Enable Amazon RDS encryption to encrypt the database and snapshots. Enable Amazon Elastic Block Store (Amazon EBS) encryption on Amazon EC2 instances. Include the database credential in the EC2 user data field. Use an IAM Lambda function to rotate database credentials. Set up TLS for the connection to the database.
  2. Install a database on an Amazon EC2 Instance. Enable third-party disk encryption to encrypt the Amazon Elastic Block Store (Amazon EBS) volume. Store the database credentials in IAM CloudHSM with automatic rotation. Set up TLS for the connection to the database.
  3. Enable Amazon RDS encryption to encrypt the database and snapshots. Enable Amazon Elastic Block Store (Amazon EBS) encryption on Amazon EC2 instances. Store the database credentials in IAM Secrets Manager with automatic rotation. Set up TLS for the connection to the RDS hosted database.
  4. Set up an IAM CloudHSM cluster with IAM Key Management Service (IAM KMS) to store KMS keys.
    Set up Amazon RDS encryption using IAM KMS to encrypt the database. Store database credentials in the IAM Systems Manager Parameter Store with automatic rotation. Set up TLS for the connection to the RDS hosted database.

Answer(s): C

Explanation:

To protect the sensitive data against any data breach and minimize management overhead, the security engineer should recommend the following solution:

Enable Amazon RDS encryption to encrypt the database and snapshots. This allows the security engineer to use AWS Key Management Service (AWS KMS) to encrypt data at rest for the database and any backups or replicas.

Enable Amazon Elastic Block Store (Amazon EBS) encryption on Amazon EC2 instances. This allows the security engineer to use AWS KMS to encrypt data at rest for the EC2 instances and any snapshots or volumes.

Store the database credentials in AWS Secrets Manager with automatic rotation. This allows the security engineer to encrypt and manage secrets centrally, and to configure automatic rotation schedules for them.

Set up TLS for the connection to the RDS hosted database. This allows the security engineer to encrypt data in transit between the EC2 instances and the database.



Page 19 of 63



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P commented on September 16, 2023
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