CLF-C02日语 Practice Exam — CLF-C02: Cloud Practitioner

Based on the information provided about Amazon Snowball Edge, the activity related to a Snowball Edge device that is available to the company at no cost is: 1

C. The transfer of data from the Snowball Edge appliance into Amazon S3 2

This is because:

1. AWS does not charge for data transfer from Snowball Edge devices into Amazon S3. This is part of the design of the Snowball service to make data migration to AWS more cost-effective.

2. The other options involve costs:

- Option A: Use of the Snowball Edge appliance typically incurs a per-day fee, even for the first 10 days.

- Option B: Transferring data out of Amazon S3 to a Snowball Edge device would incur data transfer out fees.

- Option D: Extended use of the Snowball Edge appliance beyond 10 days would incur additional daily fees.

3. It's important to note that while the data transfer into S3 is free, there are other associated costs with using Snowball Edge, such as the per-day device fee and any applicable S3 storage costs.

4. For the most up-to-date and detailed pricing information, it's always best to consult the official AWS Snowball pricing page or contact AWS directly.

Remember to carefully plan your data transfer to minimize costs and ensure efficient use of the Snowball Edge device within your migration strategy. 3

Sources

[1] [[1] Use AMS SSP to provision AWS Snowball Edge in your AMS account - AMS Advanced User Guide] (https://docs.aws.amazon.com/managedservices/latest/userguide/snowball.html)

[3] [[2] Bulk data Migration query from Onprem DC to Cloud | AWS re:Post] (https://repost.aws/questions/QU3RQAV8aNTX6rZ-ElzDitaQ/bulk-data-migration-query-from-onprem-dc-to-cloud)

[6] [[3] Trellix accelerates on-premises research data migration with AWS Snow Family | AWS Storage Blog] (https://aws.amazon.com/blogs/storage/trellix-accelerates-on-premises-research-data-migration-with-aws-snow-family/)

Based on the requirements described in the question, the most suitable AWS service for assessing application vulnerabilities and identifying infrastructure deployments that do not meet best practices is:

B. Amazon Inspector

Amazon Inspector is the ideal choice for this scenario because:

1. It is specifically designed to assess vulnerabilities in applications deployed on Amazon EC2 instances.

2. It can identify security issues and deviations from best practices in infrastructure deployments.

3. Amazon Inspector performs automated security assessments, which helps in continuously monitoring and improving the security posture of applications and infrastructure. 2

4. It provides detailed findings prioritized by severity level, making it easier for the company to address the most critical vulnerabilities first.

5. The service can scan for software vulnerabilities and unintended network exposure, covering both application and infrastructure-level security concerns.

6. Amazon Inspector integrates well with other AWS services, enhancing overall security monitoring and management capabilities.

To get started with Amazon Inspector, the company should:

- Enable the service in their AWS account

- Configure assessment targets (EC2 instances to be evaluated)

- Set up assessment templates (rules packages to be used)

- Run assessments regularly or on a schedule

- Review findings and take necessary actions to remediate identified vulnerabilities

For the most up-to-date information on Amazon Inspector's features, pricing, and best practices for implementation, I recommend consulting the official AWS documentation.

Sources

[1] [[1] Community | Boost Threat Detection with Amazon GuardDuty & Inspector] (https://community.aws/content/2eyYncik7ua8jFOXbyY9FwTqDMb/boost-threat-detection-with-amazon-guardduty-inspector)

[3] [[2] Security control recommendations for protecting infrastructure - AWS Prescriptive Guidance] (https://docs.aws.amazon.com/prescriptive-guidance/latest/security-controls-by-caf-capability/infrastructure-controls.html)

Based on the company's requirements for extending file storage capabilities while retaining local performance benefits, the most operationally efficient AWS solution for this scenario is:

B. Configure and deploy an AWS Storage Gateway file gateway. Connect each user's workstation to the file gateway. 1

Here's why this is the most suitable solution:

1. Hybrid Storage: AWS Storage Gateway's file gateway mode provides a seamless way to extend on-premises storage to the cloud, addressing the company's need to expand beyond their current local capacity.

2. Local Performance: The file gateway caches frequently accessed data locally, ensuring that users maintain the performance benefits of sharing content locally.

3. Scalability: File gateway allows for virtually unlimited storage in Amazon S3, solving the issue of exceeded on-premises storage space.

4. Operational Efficiency: Once set up, the file gateway is easy to manage and requires minimal ongoing maintenance, making it operationally efficient.

5. Familiar Interface: Users can continue to access files through standard file protocols (NFS/SMB), requiring no change in their workflow or applications.

6. Data Protection: File gateway automatically backs up data to Amazon S3, providing durability and disaster recovery capabilities.

To implement this solution:

1. Deploy an AWS Storage Gateway file gateway appliance on-premises or as an EC2 instance.

2. Configure the file gateway to store data in an S3 bucket.

3. Mount the file share on users' workstations using standard file protocols.

4. Migrate existing data to the new file share.

This approach allows the company to seamlessly extend their storage to the cloud while maintaining local performance and familiar access methods for their users. 2

For the most up-to-date information on AWS Storage Gateway features, pricing, and best practices for implementation, I recommend consulting the official AWS documentation.

Sources

[1] [[1] AWS Data Transfer using Storage Gateway | AWS re:Post] (https://repost.aws/questions/QUBo-g9WUzRQSKkhV3rOWtJw/aws-data-transfer-using-storage-gateway)

[3] [[2] Building a Cloud Native File System with Cloud Native Qumulo and Amazon S3 | AWS Partner Network (APN) Blog] (https://aws.amazon.com/blogs/apn/building-a-cloud-native-file-system-with-cloud-native-qumulo-and-amazon-s3/)

The correct answer is C. Have the EC2 instance assume a role to obtain the privileges to upload the file.

Explanation:

- Option A and B are insecure because hardcoding or storing IAM user credentials (access keys/secret keys) directly on an EC2 instance or in application code poses a significant risk. If compromised, these credentials could grant unauthorized access to other AWS resources.

- Option D is overly permissive. Allowing "any service" to upload to an S3 bucket at all times violates the principle of least privilege and increases exposure to security threats.

- Option C aligns with best practices. Using an IAM role for the EC2 instance allows it to securely assume temporary credentials (via AWS Security Token Service, STS) to access the S3 bucket. IAM roles eliminate the need to store long-term credentials on the instance, reducing the risk of credential compromise.

Key Security Principle:

Always use IAM roles for EC2 instances (and other AWS services) to grant temporary, least-privilege access to resources, rather than static IAM user credentials. This follows the principle of least privilege and enhances security.

Based on the AWS Shared Responsibility Model, the customer responsibility when using Amazon DynamoDB is: 1

C. Access to DynamoDB tables

This is correct because:

1. Under the shared responsibility model, AWS is responsible for the security "of" the cloud, which includes the underlying infrastructure, while customers are responsible for security "in" the cloud, including access management. 2

2. Customers are responsible for managing access to their DynamoDB tables through proper configuration of AWS Identity and Access Management (IAM) policies, roles, and permissions. 3

3. It's the customer's responsibility to implement appropriate access control policies, ensuring that only authorized users and applications can access their DynamoDB tables.

4. Customers need to follow the principle of least privilege when granting access to DynamoDB resources, providing only the necessary permissions required for specific tasks.

The other options are not customer responsibilities:

A. Physical security of DynamoDB is managed by AWS as part of their responsibility for the underlying infrastructure.

B. Patching of DynamoDB is handled by AWS as part of their managed service offerings.

D. While customers can choose to enable encryption at rest for their DynamoDB tables, AWS provides this feature and manages the underlying encryption process.

To properly manage access to DynamoDB tables, customers should:

1. Use IAM policies to control access at a granular level.

2. Implement strong authentication mechanisms.

3. Regularly review and audit access permissions.

4. Use VPC endpoints for DynamoDB to keep traffic within the AWS network when possible.

5. Enable CloudTrail logging to monitor API calls related to DynamoDB access.

For the most up-to-date information on securing DynamoDB and best practices for access management, please refer to the official AWS DynamoDB documentation.

Sources

[1] [[1] Shared responsibility model - Active Directory Domain Services on AWS] (https://docs.aws.amazon.com/whitepapers/latest/active-directory-domain-services/shared-responsibility-model.html)

[3] [[2] Shared responsibility - Security Pillar] (https://docs.aws.amazon.com/wellarchitected/latest/security-pillar/shared-responsibility.html)

[6] [[3] Security and compliance in Amazon DynamoDB - Amazon DynamoDB] (https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/security.html)