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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Security Foundations and Governance | 14% | - Establish security frameworks and compliance
|
| Topic 2: Incident Response | 14% | - Develop incident response plans and procedures
|
| Topic 3: Detection | 16% | - Design and implement threat detection mechanisms
|
| Topic 4: Identity and Access Management | 20% | - Secure authentication and authorization
|
| Topic 5: Infrastructure Security | 18% | - Secure compute and storage resources
|
| Topic 6: Data Protection | 18% | - Secure data access and sharing
|
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NEW QUESTION # 36
A company has an AWS Lambda function that requires access to an Amazon S3 bucket. The company's security policy requires that connections to Amazon S3 are over a private network and are secure.
The company has configured a gateway VPC endpoint in the VPC to allow access to Amazon S3.
The company has configured the Lambda function to run inside the VPC. Additionally, the company has configured the Lambda function to use a private subnet that has a route to the internet through a NAT gateway. Other resources in the VPC use this private subnet to access the internet successfully. When the Lambda function runs, it uses the NAT gateway instead of the gateway VPC endpoint to access Amazon S3.
What can a security engineer do to ensure that the Lambda function uses the gateway VPC endpoint for Amazon S3?
Answer: A
Explanation:
An S3 gateway endpoint works through route tables. When the gateway endpoint is associated with a subnet route table, AWS automatically adds a route for the S3 prefix list that targets the gateway endpoint. Traffic from resources in that subnet to S3 then uses the private endpoint route instead of the default route through the NAT gateway. Removing the NAT route would disrupt other internet-bound workloads in the subnet and is unnecessary. Gateway endpoint policies control authorization, not route selection. Lambda security group rules do not force S3 traffic to use the gateway endpoint. The missing configuration is associating the S3 gateway endpoint with the route table used by the Lambda function's subnet.
NEW QUESTION # 37
A company has an encrypted Amazon Aurora DB cluster in the us-east-1 Region that uses an AWS KMS customer managed key. The company must copy a DB snapshot to the us-west-1 Region but cannot access the encryption key across Regions. What should the company do to properly encrypt the snapshot in us-west-1?
Answer: C
Explanation:
AWS KMS keys are strictly regional resources. According to AWS Certified Security - Specialty documentation, a KMS key created in one Region cannot be used to encrypt or decrypt data in another Region. This includes encrypted RDS and Aurora snapshots.
When copying an encrypted snapshot to a different Region, the destination Region must have its own KMS key. AWS automatically re-encrypts the snapshot using the specified KMS key in the destination Region during the copy operation.
Options C and D are invalid because IAM policies cannot extend a KMS key's scope across Regions. Option A is incorrect because Secrets Manager does not store or manage KMS keys themselves.
AWS best practices require creating a new customer managed key in the target Region and using it during the snapshot copy process.
NEW QUESTION # 38
A company's security engineer receives an abuse notification from AWS. The notification indicates that someone is hosting malware from the company's AWS account. After investigation, the security engineer finds a new Amazon S3 bucket that an IAM user created without authorization. Which combination of steps should the security engineer take to MINIMIZE the consequences of this compromise? (Select THREE.)
Answer: B,C,E
Explanation:
AWS incident response best practices emphasize rapid containment, credential revocation, and threat detection to minimize the blast radius of a compromise. According to the AWS Certified Security - Specialty Official Study Guide, when unauthorized resources such as an Amazon S3 bucket hosting malware are discovered, immediate action must be taken to stop further misuse of the account and to prevent recurrence.
Rotating or deleting all AWS access keys (Option D) is a critical containment step. If an IAM user has been compromised, any long-term credentials associated with that user must be revoked immediately to prevent continued unauthorized access. AWS guidance explicitly lists access key rotation or deletion as a first-response action for suspected credential compromise.
Deleting unrecognized or unauthorized resources (Option F) directly removes the malicious infrastructure that is being abused. In this case, deleting the unauthorized S3 bucket immediately stops malware distribution and reduces reputational and compliance impact.
Turning on Amazon GuardDuty (Option B) enables continuous threat detection by analyzing CloudTrail events, VPC Flow Logs, and DNS logs. GuardDuty can identify additional malicious activity, compromised credentials, or persistence mechanisms that the attacker may have established. AWS documentation recommends enabling GuardDuty during or immediately after an incident to detect ongoing or future threats.
NEW QUESTION # 39
A security engineer needs to prepare a company's Amazon EC2 instances for quarantine during a security incident. The AWS Systems Manager Agent (SSM Agent) has been deployed to all EC2 instances. The security engineer has developed a script to install and update forensics tools on the EC2 instances.
Which solution will quarantine EC2 instances during a security incident?
Answer: D
Explanation:
AWS Systems Manager Run Command enables security engineers toremotely and securely execute scripts on EC2 instanceswithout requiring SSH or inbound network access. According to AWS Certified Security - Specialty incident response guidance, Run Command is a foundational tool forinstance quarantine and forensic preparation.
By configuring IAM permissions that allow the SSM Agent to execute a predefined Run Command document, the security engineer can rapidly deploy forensic tools, disable services, or modify system configurations across affected EC2 instances during an incident. This approach aligns with AWS best practices forcontainment and evidence preservation, while maintaining auditability through Systems Manager logs.
Option A only provides visibility, not quarantine capability. Option B restricts access but does not allow forensic tooling. Option C enables access to the script but does not execute it.
AWS documentation emphasizes thatSystems Manager Run Command is the recommended mechanism for incident response automation and quarantine actionson EC2 instances.
* AWS Certified Security - Specialty Official Study Guide
* AWS Systems Manager Run Command Documentation
* AWS Incident Response Best Practices
NEW QUESTION # 40
A security engineer needs to configure DDoS protection for a Network Load Balancer (NLB) with an Elastic IP address. The security engineer wants to set up an AWS WAF web ACL with a rate- based rule statement to protect the NLB.
The security engineer needs to determine a rate limit that will not block legitimate traffic. The security engineer has configured the rule statement to aggregate based on the source IP address.
How should the security engineer configure the rule to protect the NLB?
Answer: A
Explanation:
AWS WAF rate-based rules are designed to help protect applications and resources from traffic floods and application-layer DDoS attacks by tracking the number of requests from individual source IP addresses over a rolling time window. According to the AWS Certified Security - Specialty Official Study Guide and AWS WAF documentation, rate-based rules can be configured with different actions, including Count, Block, and Allow.
When a security engineer is determining an appropriate rate limit that will not block legitimate traffic, AWS best practices recommend initially configuring the rate-based rule with the Count action. The Count action allows AWS WAF to monitor and log requests that exceed the specified rate threshold without actively blocking them. This provides visibility into traffic patterns and enables the security engineer to analyze how the rule would behave in production.
By using the Count action, the security engineer can safely evaluate whether legitimate users would be affected by the chosen rate limit. Once the engineer is confident that the threshold accurately distinguishes between normal traffic and malicious behavior, the action can later be changed to Block.
NEW QUESTION # 41
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