AWS Certified Security - Specialty

AWS Certified Security - Specialty practice questions, page 7 of 21, with answer review and explanations.

Question 31

During a recent security audit, it was discovered that multiple teams in a large organization have placed restricted data in multiple Amazon S3 buckets, and the data may have been exposed. The auditor has requested that the organization identify all possible objects that contain personally identifiable information (PII) and then determine whether this information has been accessed. What solution will allow the Security team to complete this request?

  1. Using Amazon Athena, query the impacted S3 buckets by using the PII query identifier function. Then, create a new Amazon CloudWatch metric for Amazon S3 object access to alert when the objects are accessed.
  2. Enable Amazon Macie on the S3 buckets that were impacted, then perform data classification. For identified objects that contain PII, use the research function for auditing AWS CloudTrail logs and S3 bucket logs for GET operations.
  3. Enable Amazon GuardDuty and enable the PII rule set on the S3 buckets that were impacted, then perform data classification. Using the PII findings report from GuardDuty, query the S3 bucket logs by using Athena for GET operations.
  4. Enable Amazon Inspector on the S3 buckets that were impacted, then perform data classification. For identified objects that contain PII, query the S3 bucket logs by using Athena for GET operations.

Question 32

During a recent internal investigation, it was discovered that all API logging was disabled in a production account, and the root user had created new API keys that appear to have been used several times. What could have been done to detect and automatically remediate the incident?

  1. Using Amazon Inspector, review all of the API calls and configure the inspector agent to leverage SNS topics to notify security of the change to AWS CloudTrail, and revoke the new API keys for the root user.
  2. Using AWS Config, create a config rule that detects when AWS CloudTrail is disabled, as well as any calls to the root user create-api-key. Then use a Lambda function to re-enable CloudTrail logs and deactivate the root API keys.
  3. Using Amazon CloudWatch, create a CloudWatch event that detects AWS CloudTrail deactivation and a separate Amazon Trusted Advisor check to automatically detect the creation of root API keys. Then use a Lambda function to enable AWS CloudTrail and deactivate the root API keys.
  4. Using Amazon CloudTrail, create a new CloudTrail event that detects the deactivation of CloudTrail logs, and a separate CloudTrail event that detects the creation of root API keys. Then use a Lambda function to enable CloudTrail and deactivate the root API keys.

Question 33

An application has a requirement to be resilient across not only Availability Zones within the application's primary region but also be available within another region altogether. Which of the following supports this requirement for AWS resources that are encrypted by AWS KMS?

  1. Copy the application's AWS KMS CMK from the source region to the target region so that it can be used to decrypt the resource after it is copied to the target region.
  2. Configure AWS KMS to automatically synchronize the CMK between regions so that it can be used to decrypt the resource in the target region.
  3. Use AWS services that replicate data across regions, and re-wrap the data encryption key created in the source region by using the CMK in the target region so that the target region's CMK can decrypt the database encryption key.
  4. Configure the target region's AWS service to communicate with the source region's AWS KMS so that it can decrypt the resource in the target region.

Question 34

An organization policy states that all encryption keys must be automatically rotated every 12 months. Which AWS Key Management Service (KMS) key type should be used to meet this requirement?

  1. AWS managed Customer Master Key (CMK)
  2. Customer managed CMK with AWS generated key material
  3. Customer managed CMK with imported key material
  4. AWS managed data key

Question 35

A Security Engineer received an AWS Abuse Notice listing EC2 instance IDs that are reportedly abusing other hosts. Which action should the Engineer take based on this situation? (Choose three.)

  1. Use AWS Artifact to capture an exact image of the state of each instance.
  2. Create EBS Snapshots of each of the volumes attached to the compromised instances.
  3. Capture a memory dump.
  4. Log in to each instance with administrative credentials to restart the instance.
  5. Revoke all network ingress and egress except for to/from a forensics workstation.
  6. Run Auto Recovery for Amazon EC2.