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A company's engineering team is developing a new application that creates IAM Key Management Service (IAM KMS) CMK grants for users immediately after a grant IS created users must be able to use the CMK tu encrypt a 512-byte payload. During load testing, a bug appears |intermittently where AccessDeniedExceptions are occasionally triggered when a user rst attempts to encrypt using the CMK Which solution should the c0mpany's security specialist recommend'?
A company Is planning to use Amazon Elastic File System (Amazon EFS) with its on-premises servers. The company has an existing IAM Direct Connect connection established between its on-premises data center and an IAM Region Security policy states that the company's on-premises firewall should only have specific IP addresses added to the allow list and not a CIDR range. The company also wants to restrict access so that only certain data center-based servers have access to Amazon EFS How should a security engineer implement this solution''
A company is implementing new compliance requirements to meet customer needs. According to the new requirements the company must not use any Amazon RDS DB instances or DB clusters that lack encryption of the underlying storage. The company needs a solution that will generate an email alert when an unencrypted DB instance or DB cluster is created. The solution also must terminate the unencrypted DB instance or DB cluster. Which solution will meet these requirements in the MOST operationally efficient manner?
A developer has created an AWS Lambda function in a company's development account. The Lambda function requires the use of an AWS Key Management Service (AWS KMS) customer managed key that exists in a security account that the company's security team controls. The developer obtains the ARN of the KMS key from a previous Lambda function in the development account. The previous Lambda function had been working properly with the KMS key. When the developer uses the ARN and tests the new Lambda function an error message states that access is denied to the KMS key in the security account. The developer tests the previous Lambda function that uses the same KMS key and discovers that the previous Lambda function still can encrypt data as expected. A security engineer must resolve the problem so that the new Lambda function in the development account can use the KMS key from the security account. Which combination of steps should the security engineer take to meet these requirements? (Select TWO.)
A company has two AWS accounts: Account A and Account B. Account A has an IAM role that IAM users in Account B assume when they need to upload sensitive documents to Amazon S3 buckets in Account A. A new requirement mandates that users can assume the role only if they are authenticated with multi-factor authentication (MFA). A security engineer must recommend a solution that meets this requirement with minimum risk and effort. Which solution should the security engineer recommend?
An international company has established a new business entity in South Kore a. The company also has established a new AWS account to contain the workload for the South Korean region. The company has set up the workload in the new account in the ap-northeast-2 Region. The workload consists of three Auto Scaling groups of Amazon EC2 instances. All workloads that operate in this Region must keep system logs and application logs for 7 years. A security engineer must implement a solution to ensure that no logging data is lost for each instance during scaling activities. The solution also must keep the logs for only the required period of 7 years. Which combination of steps should the security engineer take to meet these requirements? (Choose three.)
A company is operating a website using Amazon CloudFornt. CloudFront servers some content from Amazon S3 and other from web servers running EC2 instances behind an Application. Load Balancer (ALB). Amazon DynamoDB is used as the data store. The company already uses IAM Certificate Manager (ACM) to store a public TLS certificate that can optionally secure connections between the website users and CloudFront. The company has a new requirement to enforce end-to-end encryption in transit. Which combination of steps should the company take to meet this requirement? (Select THREE.)
A security engineer must use AWS Key Management Service (AWS KMS) to design a key management solution for a set of Amazon Elastic Block Store (Amazon EBS) volumes that contain sensitive data. The solution needs to ensure that the key material automatically expires in 90 days. Which solution meets these criteria?
A Development team has built an experimental environment to test a simple stale web application It has built an isolated VPC with a private and a public subnet. The public subnet holds only an Application Load Balancer a NAT gateway, and an internet gateway. The private subnet holds ail of the Amazon EC2 instances There are 3 different types of servers Each server type has its own Security Group that limits access lo only required connectivity. The Security Groups nave both inbound and outbound rules applied Each subnet has both inbound and outbound network ACls applied to limit access to only required connectivity Which of the following should the team check if a server cannot establish an outbound connection to the internet? (Select THREE.)
A company is deploying an Amazon EC2-based application. The application will include a custom health-checking component that produces health status data in JSON format. A Security Engineer must implement a secure solution to monitor application availability in near-real time by analyzing the hearth status data. Which approach should the Security Engineer use?

Question 309 - SCS-C02 discussion

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A company has hundreds of AWS accounts in an organization in AWS Organizations. The company operates out of a single AWS Region. The company has a dedicated security tooling AWS account in the organization. The security tooling account is configured as the organization's delegated administrator for Amazon GuardDuty and AWS Security Hub. The company has configured the environment to automatically enable GuardDuty and Security Hub for existing AWS accounts and new AWS accounts.

The company is performing control tests on specific GuardDuty findings to make sure that the company's security team can detect and respond to security events. The security team launched an Amazon EC2 instance and attempted to run DNS requests against a test domain, example.com, to generate a DNS finding. However, the GuardDuty finding was never created in the Security Hub delegated administrator account.

Why was the finding was not created in the Security Hub delegated administrator account?

A.
VPC flow logs were not turned on for the VPC where the EC2 instance was launched.
Answers
A.
VPC flow logs were not turned on for the VPC where the EC2 instance was launched.
B.
The VPC where the EC2 instance was launched had the DHCP option configured for a custom OpenDNS resolver.
Answers
B.
The VPC where the EC2 instance was launched had the DHCP option configured for a custom OpenDNS resolver.
C.
The GuardDuty integration with Security Hub was never activated in the AWS account where the finding was generated.
Answers
C.
The GuardDuty integration with Security Hub was never activated in the AWS account where the finding was generated.
D.
Cross-Region aggregation in Security Hub was not configured.
Answers
D.
Cross-Region aggregation in Security Hub was not configured.
Suggested answer: C

Explanation:

The correct answer is C. The GuardDuty integration with Security Hub was never activated in the AWS account where the finding was generated.

The reason is that Security Hub does not automatically receive findings from GuardDuty unless the integration is activated in each AWS account. According to the AWS documentation1, ''The Amazon GuardDuty integration with Security Hub enables you to send findings from GuardDuty to Security Hub. Security Hub can then include those findings in its analysis of your security posture.'' However, this integration is not enabled by default and requires manual activation in each AWS account. The documentation1 also states that ''You must activate the integration in each AWS account that you want to send findings from GuardDuty to Security Hub.''

Therefore, even though the company has configured the security tooling account as the delegated administrator for GuardDuty and Security Hub, and has enabled these services for existing and new AWS accounts, it still needs to activate the GuardDuty integration with Security Hub in each account. Otherwise, the findings from GuardDuty will not be sent to Security Hub and will not be visible in the delegated administrator account.

The other options are incorrect because:

A) VPC flow logs are not required for GuardDuty to generate DNS findings. GuardDuty uses VPC flow logs as one of the data sources for network connection findings, but not for DNS findings. According to the AWS documentation2, ''GuardDuty uses VPC Flow Logs as a data source for network connection findings.''

B) The VPC DHCP option configured for a custom OpenDNS resolver does not affect GuardDuty's ability to generate DNS findings. GuardDuty uses DNS logs as one of the data sources for DNS findings, regardless of the DNS resolver used by the VPC. According to the AWS documentation2, ''GuardDuty uses DNS logs as a data source for DNS activity findings.''

D) Cross-Region aggregation in Security Hub is not relevant for this scenario, since the company operates out of a single AWS Region. Cross-Region aggregation in Security Hub allows you to aggregate security findings from multiple Regions into a single Region, where you can view and manage them. However, this feature is not needed if the company only uses one Region. According to the AWS documentation3, ''Cross-Region aggregation enables you to aggregate security findings from multiple Regions into a single Region.''

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asked 16/09/2024
wietse Bonnes
37 questions
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