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Home Amazon AWS Certified Security - Specialty

Amazon AWS Certified Security - Specialty Exam Practice Questions (P. 3)

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Question #21
An organization has a system in AWS that allows a large number of remote workers to submit data files. File sizes vary from a few kilobytes to several megabytes.
A recent audit highlighted a concern that data files are not encrypted while in transit over untrusted networks.
Which solution would remediate the audit finding while minimizing the effort required?
  1. A
    Upload an SSL certificate to IAM, and configure Amazon CloudFront with the passphrase for the private key.
  2. B
    Call KMS.Encrypt() in the client, passing in the data file contents, and call KMS.Decrypt() server-side.
  3. C
    Use AWS Certificate Manager to provision a certificate on an Elastic Load Balancing in front of the web service's servers.
  4. D
    Create a new VPC with an Amazon VPC VPN endpoint, and update the web service's DNS record.

Correct Answer:
C
chatbot-img GPT-4o - Answer
Using AWS Certificate Manager to provision an SSL/TLS certificate for an Elastic Load Balancer is an effective way to secure data in transit with minimal effort. This method leverages the automatic deployment and renewal of certificates, ensuring secure, encrypted communication between clients and the web service's servers without the need for extensive manual certificate management. This solution adheres to security best practices for protecting data in transit, mitigating the risk highlighted in the audit.

Question #22
Which option for the use of the AWS Key Management Service (KMS) supports key management best practices that focus on minimizing the potential scope of data exposed by a possible future key compromise?
  1. A
    Use KMS automatic key rotation to replace the master key, and use this new master key for future encryption operations without re-encrypting previously encrypted data.
  2. B
    Generate a new Customer Master Key (CMK), re-encrypt all existing data with the new CMK, and use it for all future encryption operations.
  3. C
    Change the CMK alias every 90 days, and update key-calling applications with the new key alias.
  4. D
    Change the CMK permissions to ensure that individuals who can provision keys are not the same individuals who can use the keys.

Correct Answer:
A

Question #23
A Security Engineer must enforce the use of only Amazon EC2, Amazon S3, Amazon RDS, Amazon DynamoDB, and AWS STS in specific accounts.
What is a scalable and efficient approach to meet this requirement?
  1. A
    Set up an AWS Organizations hierarchy, and replace the FullAWSAccess policy with the following Service Control Policy for the governed organization units:
  2. B
    Create multiple IAM users for the regulated accounts, and attach the following policy statement to restrict services as required:
  3. C
    Set up an Organizations hierarchy, replace the global FullAWSAccess with the following Service Control Policy at the top level:
  4. D
    Set up all users in the Active Directory for federated access to all accounts in the company. Associate Active Directory groups with IAM groups, and attach the following policy statement to restrict services as required:

Correct Answer:
A

Question #24
A company's database developer has just migrated an Amazon RDS database credential to be stored and managed by AWS Secrets Manager. The developer has also enabled rotation of the credential within the Secrets Manager console and set the rotation to change every 30 days.
After a short period of time, a number of existing applications have failed with authentication errors.
What is the MOST likely cause of the authentication errors?
  1. A
    Migrating the credential to RDS requires that all access come through requests to the Secrets Manager.
  2. B
    Enabling rotation in Secrets Manager causes the secret to rotate immediately, and the applications are using the earlier credential.
  3. C
    The Secrets Manager IAM policy does not allow access to the RDS database.
  4. D
    The Secrets Manager IAM policy does not allow access for the applications.

Correct Answer:
A

Question #25
A Security Engineer launches two Amazon EC2 instances in the same Amazon VPC but in separate Availability Zones. Each instance has a public IP address and is able to connect to external hosts on the internet. The two instances are able to communicate with each other by using their private IP addresses, but they are not able to communicate with each other when using their public IP addresses.
Which action should the Security Engineer take to allow communication over the public IP addresses?
  1. A
    Associate the instances to the same security groups.
  2. B
    Add 0.0.0.0/0 to the egress rules of the instance security groups.
  3. C
    Add the instance IDs to the ingress rules of the instance security groups.
  4. D
    Add the public IP addresses to the ingress rules of the instance security groups.

Correct Answer:
D

Question #26
The Security Engineer is managing a web application that processes highly sensitive personal information. The application runs on Amazon EC2. The application has strict compliance requirements, which instruct that all incoming traffic to the application is protected from common web exploits and that all outgoing traffic from the EC2 instances is restricted to specific whitelisted URLs.
Which architecture should the Security Engineer use to meet these requirements?
  1. A
    Use AWS Shield to scan inbound traffic for web exploits. Use VPC Flow Logs and AWS Lambda to restrict egress traffic to specific whitelisted URLs.
  2. B
    Use AWS Shield to scan inbound traffic for web exploits. Use a third-party AWS Marketplace solution to restrict egress traffic to specific whitelisted URLs.
  3. C
    Use AWS WAF to scan inbound traffic for web exploits. Use VPC Flow Logs and AWS Lambda to restrict egress traffic to specific whitelisted URLs.
  4. D
    Use AWS WAF to scan inbound traffic for web exploits. Use a third-party AWS Marketplace solution to restrict egress traffic to specific whitelisted URLs.

Correct Answer:
D

Question #27
A company recently experienced a DDoS attack that prevented its web server from serving content. The website is static and hosts only HTML, CSS, and PDF files that users download.
Based on the architecture shown in the image, what is the BEST way to protect the site against future attacks while minimizing the ongoing operational overhead?

  1. A
    Move all the files to an Amazon S3 bucket. Have the web server serve the files from the S3 bucket.
  2. B
    Launch a second Amazon EC2 instance in a new subnet. Launch an Application Load Balancer in front of both instances.
  3. C
    Launch an Application Load Balancer in front of the EC2 instance. Create an Amazon CloudFront distribution in front of the Application Load Balancer.
  4. D
    Move all the files to an S3 bucket. Create a CloudFront distribution in front of the bucket and terminate the web server.

Correct Answer:
A

Question #28
The Information Technology department has stopped using Classic Load Balancers and switched to Application Load Balancers to save costs. After the switch, some users on older devices are no longer able to connect to the website.
What is causing this situation?
  1. A
    Application Load Balancers do not support older web browsers.
  2. B
    The Perfect Forward Secrecy settings are not configured correctly.
  3. C
    The intermediate certificate is installed within the Application Load Balancer.
  4. D
    The cipher suites on the Application Load Balancers are blocking connections.

Correct Answer:
D

Question #29
A security team is responsible for reviewing AWS API call activity in the cloud environment for security violations. These events must be recorded and retained in a centralized location for both current and future AWS regions.
What is the SIMPLEST way to meet these requirements?
  1. A
    Enable AWS Trusted Advisor security checks in the AWS Console, and report all security incidents for all regions.
  2. B
    Enable AWS CloudTrail by creating individual trails for each region, and specify a single Amazon S3 bucket to receive log files for later analysis.
  3. C
    Enable AWS CloudTrail by creating a new trail and applying the trail to all regions. Specify a single Amazon S3 bucket as the storage location.
  4. D
    Enable Amazon CloudWatch logging for all AWS services across all regions, and aggregate them to a single Amazon S3 bucket for later analysis.

Correct Answer:
B
Reference:
https://docs.aws.amazon.com/awscloudtrail/latest/userguide/cloudtrail-create-a-trail-using-the-console-first-time.html

Question #30
A Security Administrator is performing a log analysis as a result of a suspected AWS account compromise. The Administrator wants to analyze suspicious AWS
CloudTrail log files but is overwhelmed by the volume of audit logs being generated.
What approach enables the Administrator to search through the logs MOST efficiently?
  1. A
    Implement a ג€write-onlyג€ CloudTrail event filter to detect any modifications to the AWS account resources.
  2. B
    Configure Amazon Macie to classify and discover sensitive data in the Amazon S3 bucket that contains the CloudTrail audit logs.
  3. C
    Configure Amazon Athena to read from the CloudTrail S3 bucket and query the logs to examine account activities.
  4. D
    Enable Amazon S3 event notifications to trigger an AWS Lambda function that sends an email alarm when there are new CloudTrail API entries.

Correct Answer:
C
Reference:
https://docs.aws.amazon.com/athena/latest/ug/cloudtrail-logs.html

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