Pass the Amazon Web Services AWS Certified Specialty SCS-C02 Questions and answers with CertsForce

For a company using AWS Organizations that requires centralized management and automatic activation of Amazon GuardDuty across all current and future AWS accounts, setting up a delegated administrator account for GuardDuty is the optimal solution. By enabling GuardDuty in a new account and designating it as the delegated administrator, the company can centrally manage GuardDuty findings and automatically enroll new AWS accounts into GuardDuty as they are created within the organization. This approach ensures consistent threat detection and continuous monitoring across all accounts, aligning with best security practices.

Amazon Kinesis and Amazon Elasticsearch are both suitable for forensic-logging solutions. Amazon Kinesis can collect, process, and analyze streaming data in real time3. Amazon Elasticsearch can store, search, and analyze log data using the popular open-source tool Elasticsearch. The other options are not designed for forensic-logging purposes. Amazon Athena is a query service that can analyze data in S3, Amazon SQS is a message queue service that can decouple and scale microservices, and AmazonEMR is a big data platform that can run Apache Spark and Hadoop clusters.

To resolve CloudTrail's failure to deliver events to S3, verifying the S3 bucket policy for CloudTrail's write permissions (A) and ensuring the existence of the specified S3 bucket (D) are critical initial steps. These actions ensure that CloudTrail has the necessary permissions and a valid destination for log file delivery, addressing common configuration issues that can interrupt event logging.

Comprehensive and Detailed Explanation From Exact Extract:

Amazon Inspector is an automated vulnerability management service that continuously scans Amazon EC2 instances for software vulnerabilities and unintended network exposure. It uses a combination of the EC2 instance’s metadata and installed packages to detect CVEs (Common Vulnerabilities and Exposures).

AWS Systems Manager Patch Manager automates the process of patching managed instances with both security-related and other types of updates. Together, these services provide detection and remediation capabilities, fulfilling both the detection and mitigation requirements.

This approach is directly aligned with AWS Security Specialty best practices for Infrastructure Security.

Comprehensive and Detailed Explanation From Exact Extract:

AWS Backup supports cross-Region backup copy to another backup vault in a different AWS Region. This is the simplest and most operationally efficient method to meet the requirement of geographic redundancy (i.e., data centers several hundred miles apart).

No custom scripting, Lambda, or EventBridge scheduling is required, minimizing operational overhead and aligning with Data Protection and Disaster Recovery best practices.

AWS Cost Anomaly Detection:

AWS Cost Anomaly Detection monitors cost and usage trends in near real-time to detect unexpected spikes or patterns.

It can send alerts as soon as anomalies are detected, offering the earliest possible detection of cost increases.

Steps to Implement:

Create an anomaly detection monitor for the affected services or linked accounts.

Define a threshold for expected cost variations.

Set up an Amazon SNS topic to receive anomaly alerts.

Advantages:

Real-Time Monitoring: Provides near-instantaneous detection of cost anomalies.

Customizable Thresholds: Tailors detection sensitivity to the company’s needs.

Other Options:

Option A (EventBridge and Lambda) is complex and has delays in processing.

Option C (Cost Explorer) is manual and retrospective.

Option D (Flow Logs) detects network activity, but it cannot directly link to cost increases.

AWS Cost Anomaly Detection Documentation

Creating SNS Alerts for Cost Anomalies

Establishing a VPC peering connection between the VPCs in Account A and Account B and updating route tables, network ACLs, and security groups to permit the necessary traffic ensures private connectivity for the application to write to the S3 bucket without traversing the public internet. This solution is efficient and maintains network security and integrity.

Create an AWS WAF Web ACL:

Use AWS WAF to create a web ACL for the CloudFront distribution.

Add Managed Rules for Bot Protection:

Include theAWSManagedRulesACFPRuleSetto protect against automated bots and account fraud.

Add a Rate-Based Rule:

Implement a rate limit rule to restrict the number of requests to/store/registrationduring promotions.

Example rule: Deny requests exceeding 100 per minute.

Associate the Web ACL with CloudFront:

Attach the web ACL to the CloudFront distribution to enforce the rules globally at edge locations.

Advantages:

Prevents Fraudulent Activity: Detects and mitigates bot activity.

Scalable: Operates at the CloudFront level, ensuring global protection.

AWS WAF Managed Rules

Rate-Based Rules in WAF

The possible reason that the IAM user cannot access the objects in the S3 bucket is D. The KMS key policy has been edited to remove the ability for the AWS account to have full access to the key.

This answer is correct because the KMS key policy is the primary way to control access to the KMS key, and it must explicitly allow the AWS account to have full access to the key.If theKMS key policy has been edited to remove this permission, then the IAM policy that grants kms:Decrypt permission to the IAM user has no effect, and the IAM user cannot decrypt the objects in the S3 bucket12.

The other options are incorrect because:

A. The IAM policy does not need to allow the kms:DescribeKey permission, because this permission is not required for decrypting objects in S3 using SSE-KMS.The kms:DescribeKey permission allows getting information about a KMSkey, such as its creation date, description, and key state3.

B. The S3 bucket has not been changed to use the AWS managed key to encrypt objects at rest, because this would not cause an Access Denied message for the IAM user. The AWS managed key is a default KMS key that is created and managed by AWS for each AWS account and Region.The IAM user does not need any permissions on this key to use it for SSE-KMS4.

C. An S3 bucket policy does not need to be added to allow the IAM user to access the objects, because the IAM user already has s3:List* and s3:Get* permissions for the S3 bucket and its objects through an IAM policy.An S3 bucket policy is an optional way to grant cross-account access or public access to an S3 bucket5.

Answer: C