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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Threat Detection and Incident Response | 14% | - Incident response procedures
|
| Topic 2: Infrastructure Security | 20% | - Network security
|
| Topic 3: Logging and Monitoring | 18% | - Monitoring and alerting
|
| Topic 4: Identity and Access Management | 16% | - Federation and access control
|
| Topic 5: Data Protection | 18% | - Encryption and key management
|
| Topic 6: Management, Governance and Compliance | 14% | - Governance frameworks
|
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NEW QUESTION # 265
A security team manages a company's AWS Key Management Service (AWS KMS) customer managed keys.
Only members of the security team can administer the KMS keys. The company's application team has a software process that needs temporary access to the keys occasionally. The security team needs to provide the application team's software process with access to the keys.
Which solution will meet these requirements with the LEAST operational overhead?
Answer: A
Explanation:
AWS KMS key grants are specifically designed to provide temporary, granular permissions to use customer managed keys without modifying key policies. According to the AWS Certified Security - Specialty Study Guide, grants are the preferred mechanism for delegating key usage permissions to AWS principals for short- term or programmatic access scenarios. Grants allow permissions such as Encrypt, Decrypt, or GenerateDataKey and can be created and revoked dynamically.
Using a key grant avoids the operational risk and overhead of editing key policies, which are long-term control mechanisms and should remain stable. AWS documentation emphasizes that frequent key policy changes increase the risk of misconfiguration and accidental privilege escalation. Grants can be revoked immediately when access is no longer required, ensuring strong adherence to the principle of least privilege.
Options A and D violate AWS security best practices because AWS KMS does not allow direct export of key material unless the key was explicitly created as an importable key, and exporting key material increases exposure risk. Option B requires manual policy changes and rollback, which introduces operational overhead and audit complexity.
AWS recommends key grants as the most efficient and secure way to provide temporary access to KMS keys for applications.
Referenced AWS Specialty Documents:
AWS Certified Security - Specialty Official Study Guide
AWS KMS Key Policies and Grants Documentation
AWS KMS Best Practices
NEW QUESTION # 266
A company needs to build a code-signing solution using an AWS KMS asymmetric key and must store immutable evidence of key creation and usage for compliance and audit purposes.
Which solution meets these requirements?
Answer: B
Explanation:
AWS CloudTrail provides authoritative records of KMS key creation, origin, and usage. Enabling log file validation ensures tamper detection. S3 Object Lock in compliance mode enforces immutability, which is a core audit requirement cited in AWS Certified Security - Specialty materials.
CloudWatch and DynamoDB do not provide immutable storage guarantees suitable for compliance evidence.
Referenced AWS Specialty Documents:
AWS Certified Security - Specialty Official Study Guide
AWS CloudTrail Log File Validation
Amazon S3 Object Lock
NEW QUESTION # 267
A company operates a web application that runs on Amazon EC2 instances. The application listens on port 80 and port 443. The company uses an Application Load Balancer (ALB) with AWS WAF to terminate SSL and to forward traffic to the application instances only on port 80.
The ALB is in public subnets that are associated with a network ACL named NACL1. The application instances are in dedicated private subnets that are associated with a network ACL named NACL2. An Amazon RDS for PostgreSQL DB instance that uses port 5432 is in a dedicated private subnet that is associated with a network ACL named NACL3. All the network ACLs currently allow all inbound and outbound traffic.
Which set of network ACL changes will increase the security of the application while ensuring functionality?
Answer: C
Explanation:
Comprehensive and Detailed 100to 150 words of Explanation From AWS Certified Security - Specialty topics:
Network ACLs are stateless subnet-level controls, so both request traffic and return traffic must be explicitly allowed. The PostgreSQL database subnet should allow inbound TCP 5432 only from the application subnet CIDR blocks, not from the internet or unrelated subnets. Because return traffic from the database uses ephemeral destination ports on the client side, the outbound rule from the database subnet must allow TCP
1024-65536 back to the application instance subnets. Option A is invalid because network ACL rules use CIDR blocks, not other NACL names as sources or destinations. Options C and D modify only the application subnet NACL and fail to correctly restrict and allow database subnet return traffic.
NEW QUESTION # 268
A company needs to implement DNS Security Extensions (DNSSEC) for a specific subdomain. The subdomain is already registered with Amazon Route 53. A security engineer has enabled DNSSEC signing and has created a key-signing key (KSK). When the security engineer tries to test the configuration, the security engineer receives an error for a broken trust chain.
What should the security engineer do to resolve this error?
Answer: D
Explanation:
Comprehensive and Detailed 100to 150 words of Explanation From AWS Certified Security - Specialty topics:
DNSSEC validation depends on a chain of trust from the parent zone to the signed child zone. After enabling DNSSEC signing and creating a KSK for the subdomain, the parent zone must contain a Delegation Signer (DS) record that points to the child zone's DNSSEC key material. Without the DS record in the parent, validating resolvers cannot establish the trust chain, so the configuration appears broken. The DS record does not belong in the subdomain zone itself for this trust-linking purpose. Replacing the KSK with a ZSK is conceptually wrong because the KSK is the key associated with the DS record chain. Reactivating the KSK does not fix a missing parent-zone delegation signer record.
NEW QUESTION # 269
A company is developing an application that runs across a combination of Amazon EC2 On- Demand Instances and Spot Instances. A security engineer needs to provide a logging solution that makes logs for all instances available from a single location. The solution must allow only a specific set of users to analyze the logs for events patterns. The users must be able to use SQL queries on the logs to perform root cause analysis.
Which solution will meet these requirements?
Answer: B
Explanation:
Option A satisfies all requirements with the most direct, purpose-built AWS logging workflow. By using the CloudWatch Agent (or fluent-bit / unified logging configuration) on each EC2 instance-- regardless of whether it is On-Demand or Spot--the application logs can be centralized into asingle Amazon CloudWatch Logs log group. Centralization ensures the logs remain available even as Spot Instances are interrupted and replaced. Access control is handled withIAM policies(and optionally resource policies/KMS encryption) so that only a specific set of users can read/query the log group.
For analysis,CloudWatch Logs Insightsprovides an interactive query language that is SQL-like and commonly treated as "SQL queries" for troubleshooting. It enables fast filtering, aggregation, and pattern detection across large log volumes without building a separate data lake pipeline.
This supports event-pattern analysis and root cause investigation directly from the centralized log group.
NEW QUESTION # 270
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