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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Data Protection | 22% | - AWS Key Management Service (KMS) and customer managed keys - AWS CloudTrail and encryption key audit - Database encryption and access control - Amazon S3 security best practices - Design and implement encryption solutions for data at rest and in transit |
| Topic 2: Identity and Access Management | 20% | - Design and implement identity and access management architecture - Implement temporary credentials and federation - Troubleshoot IAM-based authentication and authorization issues - Design and implement cross-account access management |
| Topic 3: Incident Response | 12% | - Determine root cause and recurrence prevention - Identify, collect, and preserve forensic evidence - Given an AWS security incident, outline the investigation and mitigation steps |
| Topic 4: Logging and Monitoring | 20% | - Design and implement monitoring and alerting solutions - Design and implement log analysis and management - Troubleshoot security monitoring and alerting |
| Topic 5: Infrastructure Security | 26% | - AWS Secret Manager and AWS Systems Manager Parameter Store - Architect network security segmentation (VPC architecture) - Design and implement edge security on AWS - Design and implement host-based security |
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NEW QUESTION # 16
A company needs to develop a code-signing application that will use a certificate authority (CA) to sign a code-signing certificate. The solution must use an AWS Key Management Service (AWS KMS) asymmetric key. The solution needs to collect and store immutable evidence about the creation, origin, and use of the KMS key for compliance purposes. This information must be made available to internal auditors.
Which solution meets these requirements?
Answer: B
Explanation:
AWS CloudTrail records AWS KMS key management and usage events, including key creation and API calls that reference the KMS key. Storing the validated CloudTrail logs in an S3 bucket with Object Lock provides immutable evidence for compliance, and auditors can be granted read access to review the key's creation, origin-related events, and subsequent use.
NEW QUESTION # 17
A company runs a global ecommerce website using Amazon CloudFront. The company must block traffic from specific countries to comply with data regulations.
Which solution will meet these requirements MOST cost-effectively?
Answer: D
Explanation:
Amazon CloudFront includes a built-in geo restriction feature that allows content to be allowed or denied based on the viewer's country. According to AWS Certified Security - Specialty documentation, CloudFront geo restriction is the most cost-effective method for country-based blocking because it does not require AWS WAF or additional rule processing.
AWS WAF geo match rules incur additional cost and are more appropriate when advanced inspection or layered security controls are required. IP-based blocking is impractical due to frequent IP changes.
Geolocation headers do not enforce access control.
CloudFront geo restriction is evaluated at the edge and efficiently blocks disallowed countries with minimal latency and cost.
Referenced AWS Specialty Documents:
AWS Certified Security - Specialty Official Study Guide
Amazon CloudFront Geo Restriction
AWS Edge Security Best Practices
NEW QUESTION # 18
A company ' s public website consists of an Application Load Balancer (ALB), a set of Amazon EC2 instances that run a stateless application behind the ALB, and an Amazon DynamoDB table from which the application reads data. The company is concerned about malicious scanning and DDoS attacks. The company wants to impose a restriction in which each client IP address can read the data only3 times in any 5-minute period.
Which solution will meet this requirement with the LEAST effort?
Answer: D
Explanation:
This is a classic Layer 7 rate-limiting requirement tied toclient IPand atime window, and AWS WAF provides this natively withrate-based rules. Placing AWS WAF in front of the ALB allows the company to count requests per source IP over a rolling window and take action (block, CAPTCHA/challenge, or count depending on configuration) once the threshold is exceeded. This approach mitigates scanning and application-layer request floods early, before requests consume EC2 or DynamoDB capacity, and it requires minimal custom code or operational work.
Options B and C require building and maintaining custom counting logic (either in Lambda or in the application), which increases complexity and risk of errors, and it also introduces operational overhead for scaling state tracking across many IPs. Option D is not appropriate: altering DynamoDB capacity does not enforce "per-IP reads," and storing per-request metadata in the same table is an anti-pattern that increases write load and complexity.
Therefore, using AWS WAF rate-based protection at the ALB is the least-effort, most effective solution.
NEW QUESTION # 19
A security engineer received an Amazon GuardDuty alert indicating a finding involving the Amazon EC2 instance that hosts the company ' s primary website. The GuardDuty finding received read:
UnauthorizedAccess:IAMUser/InstanceCredentialExfiltration. The security engineer confirmed that a malicious actor used API access keys intended for the EC2 instance from a country where the company does not operate. The security engineer needs to deny access to the malicious actor.
What is the first step the security engineer should take?
Answer: D
Explanation:
The findingInstanceCredentialExfiltrationindicates that credentials available to the EC2 instance (from the instance profile / IMDS) were likely stolen and then used from an unusual location. The fastest way todeny the malicious actor immediatelyis to invalidate the stolen, currently usable credentials. Because these aretemporary credentialsissued to the instance profile role, the correct first containment action is torevoke active sessionsfor that role so the stolen session credentials stop working. This directly blocks continued API use while you continue investigation and remediation.
Changing security groups (Option A) affects inbound network access to the website but does not stop an attacker from using stolen API credentials against AWS APIs. Installing agents and running assessments (Options B and C) are investigative steps that take time and do not immediately cut off the attacker's current access. After revoking sessions, best practice incident response typically continues with additional containment and eradication steps such as rotating credentials, reviewing CloudTrail for actions taken, checking for persistence (new IAM users/keys, modified policies), patching the instance, and restricting IMDS (for example, enforcing IMDSv2) to reduce risk of further credential theft.
NEW QUESTION # 20
A company is running its application on AWS. The company has a multi-environment setup, and each environment is isolated in a separate AWS account. The company has an organization in AWS Organizations to manage the accounts. There is a single dedicated security account for the organization. The company must create an inventory of all sensitive data that is stored in Amazon S3 buckets across the organization's accounts. The findings must be visible from a single location.
Which solution will meet these requirements?
Answer: D
Explanation:
Amazon Macie is the AWS service designed specifically to discover, classify, and inventory sensitive data stored in Amazon S3. According to the AWS Certified Security - Specialty Study Guide, Macie can be enabled organization-wide using AWS Organizations, with a delegated administrator account that centrally manages findings across all member accounts.
By designating the security account as the delegated administrator for both Amazon Macie and AWS Security Hub, the company can centralize sensitive data findings in a single location. Macie automatically scans S3 buckets for sensitive data such as personally identifiable information (PII) and publishes findings to Security Hub for centralized visibility and reporting.
Option B and C are incorrect because Amazon Inspector does not scan S3 objects for sensitive data. Option D is invalid because AWS Trusted Advisor does not ingest Macie sensitive data findings.
AWS best practices recommend Amazon Macie with delegated administration and Security Hub integration for centralized sensitive data inventory across multi-account environments.
Referenced AWS Specialty Documents:
AWS Certified Security - Specialty Official Study Guide
Amazon Macie Sensitive Data Discovery
AWS Organizations Delegated Administrator Model
AWS Security Hub Integration Overview
NEW QUESTION # 21
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