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Exam SCS-C02 questions and answers
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Amazon SCS-C02 Exam Syllabus Topics:
Topic
Details
Topic 1
- Infrastructure Security: Aspiring AWS Security specialists are trained to implement and troubleshoot security controls for edge services, networks, and compute workloads under this topic. Emphasis is placed on ensuring resilience and mitigating risks across AWS infrastructure. This section aligns closely with the exam's focus on safeguarding critical AWS services and environments.
Topic 2
- Threat Detection and Incident Response: In this topic, AWS Security specialists gain expertise in crafting incident response plans and detecting security threats and anomalies using AWS services. It delves into effective strategies for responding to compromised resources and workloads, ensuring readiness to manage security incidents. Mastering these concepts is critical for handling scenarios assessed in the SCS-C02 Exam.
Topic 3
- Identity and Access Management: The topic equips AWS Security specialists with skills to design, implement, and troubleshoot authentication and authorization mechanisms for AWS resources. By emphasizing secure identity management practices, this area addresses foundational competencies required for effective access control, a vital aspect of the certification exam.
Topic 4
- Data Protection: AWS Security specialists learn to ensure data confidentiality and integrity for data in transit and at rest. Topics include lifecycle management of data at rest, credential protection, and cryptographic key management. These capabilities are central to managing sensitive data securely, reflecting the exam's focus on advanced data protection strategies.
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Amazon AWS Certified Security - Specialty Sample Questions (Q328-Q333):
NEW QUESTION # 328
A company is running an Amazon RDS for MySQL DB instance in a VPC. The VPC must not send or receive network traffic through the internet.
A security engineer wants to use AWS Secrets Manager to rotate the DB instance credentials automatically.
Because of a security policy, the security engineer cannot use the standard AWS Lambda function that Secrets Manager provides to rotate the credentials.
The security engineer deploys a custom Lambda function in the VPC. The custom Lambda function will be responsible for rotating the secret in Secrets Manager. The security engineer edits the DB instance's security group to allow connections from this function. When the function is invoked, the function cannot communicate with Secrets Manager to rotate the secret properly.
What should the security engineer do so that the function can rotate the secret?
- A. Configure a Secrets Manager interface VPC endpoint. Include the Lambda function's private subnet during the configuration process.
- B. Add an egress-only internet gateway to the VPC. Allow only the Lambda function's subnet to route traffic through the egress-only internet gateway.
- C. Add a NAT gateway to the VPC. Configure only the Lambda function's subnet with a default route through the NAT gateway.
- D. Configure a VPC peering connection to the default VPC for Secrets Manager. Configure the Lambda function's subnet to use the peering connection for routes.
Answer: A
Explanation:
Explanation
You can establish a private connection between your VPC and Secrets Manager by creating an interface VPC endpoint. Interface endpoints are powered by AWS PrivateLink, a technology that enables you to privately access Secrets Manager APIs without an internet gateway, NAT device, VPN connection, or AWS Direct Connect connection. Reference:
https://docs.aws.amazon.com/secretsmanager/latest/userguide/vpc-endpoint-overview.html The correct answer is D. Configure a Secrets Manager interface VPC endpoint. Include the Lambda function's private subnet during the configuration process.
A Secrets Manager interface VPC endpoint is a private connection between the VPC and Secrets Manager that does not require an internet gateway, NAT device, VPN connection, or AWS Direct Connect connection1. By configuring a Secrets Manager interface VPC endpoint, the security engineer can enable the custom Lambda function to communicate with Secrets Manager without sending or receiving network traffic through the internet. The security engineer must include the Lambda function's private subnet during the configuration process to allow the function to use the endpoint2.
The other options are incorrect for the following reasons:
A: An egress-only internet gateway is a VPC component that allows outbound communication over IPv6 from instances in the VPC to the internet, and prevents the internet from initiating an IPv6 connection with the instances3. However, this option does not meet the requirement that the VPC must not send or receive network traffic through the internet. Moreover, an egress-only internet gateway is for use with IPv6 traffic only, and Secrets Manager does not support IPv6 addresses2.
B: A NAT gateway is a VPC component that enables instances in a private subnet to connect to the internet or other AWS services, but prevents the internet from initiating connections with those instances4. However, this option does not meet the requirement that the VPC must not send or receive network traffic through the internet. Additionally, a NAT gateway requires an elastic IP address, which is a public IPv4 address4.
C: A VPC peering connection is a networking connection between two VPCs that enables you to route traffic between them using private IPv4 addresses or IPv6 addresses5. However, this option does not work because Secrets Manager does not have a default VPC that can be peered with. Furthermore, a VPC peering connection does not provide a private connection to Secrets Manager APIs without an internet gateway or other devices2.
NEW QUESTION # 329
A company is using AWS Organizations to implement a multi-account strategy. The company does not have on-premises infrastructure. All workloads run on AWS. The company currently has eight member accounts.
The company anticipates that it will have no more than 20 AWS accounts total at any time.
The company issues a new security policy that contains the following requirements:
* No AWS account should use a VPC within the AWS account for workloads.
* The company should use a centrally managed VPC that all AWS accounts can access to launch workloads in subnets.
* No AWS account should be able to modify another AWS account's application resources within the centrally managed VPC.
* The centrally managed VPC should reside in an existing AWS account that is named Account-A within an organization.
The company uses an AWS CloudFormation template to create a VPC that contains multiple subnets in Account-A. This template exports the subnet IDs through the CloudFormation Outputs section.
Which solution will complete the security setup to meet these requirements?
- A. Use a CloudFormation template in the member accounts to launch workloads. Configure the template to use the Fn::lmportValue function to obtain the subnet ID values.
- B. Use a transit gateway in the VPC within Account-A. Configure the member accounts to use the transit gateway to access the subnets in Account-A to launch workloads.
- C. Use AWS Resource Access Manager (AWS RAM) to share Account-A's VPC subnets with the remaining member accounts. Configure the member accounts to use the shared subnets to launch workloads.
- D. Create a peering connection between Account-A and the remaining member accounts. Configure the member accounts to use the subnets in Account-A through the VPC peering connection to launch workloads.
Answer: C
Explanation:
Explanation
The correct answer is C. Use AWS Resource Access Manager (AWS RAM) to share Account-A's VPC subnets with the remaining member accounts. Configure the member accounts to use the shared subnets to launch workloads.
This answer is correct because AWS RAM is a service that helps you securely share your AWS resources across AWS accounts, within your organization or organizational units (OUs), and with IAM roles and users for supported resource types1. One of the supported resource types is VPC subnets2, which means you can share the subnets in Account-A's VPC with the other member accounts using AWS RAM. This way, you can meet the requirements of using a centrally managed VPC, avoiding duplicate VPCs in each account, and launching workloads in shared subnets. You can also control the access to the shared subnets by using IAM policies and resource-based policies3, which can prevent one account from modifying another account's resources.
The other options are incorrect because:
A: Using a CloudFormation template in the member accounts to launch workloads and using the Fn::ImportValue function to obtain the subnet ID values is not a solution, because Fn::ImportValue can only import values that have been exported by another stack within the same region4. This means that you cannot use Fn::ImportValue to reference the subnet IDs that are exported by Account-A's CloudFormation template, unless all the member accounts are in the same region as Account-A. This option also does not avoid creating duplicate VPCs in each account, which is one of the requirements.
B: Using a transit gateway in the VPC within Account-A and configuring the member accounts to use the transit gateway to access the subnets in Account-A to launch workloads is not a solution, because a transit gateway does not allow you to launch workloads in another account's subnets. A transit gateway is a network transit hub that enables you to route traffic between your VPCs and on-premises networks5, but it does not enable you to share subnets across accounts.
D: Creating a peering connection between Account-A and the remaining member accounts and configuring the member accounts to use the subnets in Account-A through the VPC peering connection to launch workloads is not a solution, because a VPC peering connection does not allow you to launch workloads in another account's subnets. A VPC peering connection is a networking connection between two VPCs that enables you to route traffic between them privately6, but it does not enable you to share subnets across accounts.
References:
1: What is AWS Resource Access Manager? 2: Shareable AWS resources 3: Managing permissions for shared resources 4: Fn::ImportValue 5: What is a transit gateway? 6: What is VPC peering?
NEW QUESTION # 330
A company has a large fleet of Linux Amazon EC2 instances and Windows EC2 instances that run in private subnets. The company wants all remote administration to be performed as securely as possible in the AWS Cloud.
Which solution will meet these requirements?
- A. Generate new SSH-RSA private keys for existing instances. Implement AWS Systems Manager Session Manager.
- B. Do not use SSH-RSA private keys during the launch of new instances. Configure EC2 Instance Connect.
- C. Generate new SSH-RSA private keys for existing instances. Configure EC2 Instance Connect.
- D. Do not use SSH-RSA private keys during the launch of new instances. Implement AWS Systems Manager Session Manager.
Answer: D
Explanation:
AWS Systems Manager Session Manager is a fully managed service that allows you to securely and remotely administer your EC2 instances without the need to open inbound ports, maintain bastion hosts, or manage SSH keys. Session Manager provides an interactive browser-based shell or CLI access to your instances, as well as port forwarding and auditing capabilities. Session Manager works with both Linux and Windows instances, and supports hybrid environments and edge devices.
EC2 Instance Connect is a feature that allows you to use SSH to connect to your Linux instances using short- lived keys that are generated on demand and delivered securely through the AWS metadata service. EC2 Instance Connect does not require any additional software installation or configuration on the instance, but it does require you to use SSH-RSA keys during the launch of new instances.
The correct answer is to use Session Manager, as it provides more security and flexibility than EC2 Instance Connect, and does not require SSH-RSA keys or inbound ports. Session Manager also works with Windows instances, while EC2 Instance Connect does not.
Verified References:
* https://docs.aws.amazon.com/systems-manager/latest/userguide/session-manager.html
* https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/Connect-using-EC2-Instance-Connect.html
* https://repost.aws/questions/QUnV4R9EoeSdW0GT3cKBUR7w/what-is-the-difference-between-ec-2- instance-connect-and-session-manager-ssh-connections
NEW QUESTION # 331
A company is implementing a new application in a new AWS account. A VPC and subnets have been created for the application. The application has been peered to an existing VPC in another account in the same AWS Region for database access Amazon EC2 instances will regularly be created and terminated in the application VPC, but only some of them will need access to the databases in the peered VPC over TCP port 1521. A security engineer must ensure that only the EC2 instances that need access to the databases can access them through the network.
How can the security engineer implement this solution?
- A. Create a new security group in the application VPC with an inbound rule that allows the IP address range of the database VPC over TCP port 1521. Add a new network ACL rule on the database subnets. Configure the rule to allow all traffic from the IP address range of the application VPC. Attach the new security group to the application instances that need database access.
- B. Create a new security group in the database VPC and create an inbound rule that allows all traffic from the IP address range of the application VPC. Add a new network ACL rule on the database subnets. Configure the rule to TCP port 1521 from the IP address range of the application VPC.
Attach the new security group to the database instances that the application instances need to access.
- C. Create a new security group in the application VPC with an inbound rule that allows the IP address range of the database VPC over TCP port 1521. Create a new security group in the database VPC with an inbound rule that allows the IP address range of the application VPC over port 1521. Attach the new security group to the database instances and the application instances that need database access.
- D. Create a new security group in the application VPC with no inbound rules. Create a new security group in the database VPC with an inbound rule that allows TCP port 1521 from the new application security group in the application VPAttach the application security group to the application instances that need database access and attach the database security group to the database instances.
Answer: D
Explanation:
The VPCs are peered, so you can reference security groups in other VPCs:
https://docs.aws.amazon.com/vpc/latest/peering/vpc-peering-security-groups.html
NEW QUESTION # 332
A company is testing incident response procedures for destination containment. The company needs to contain a critical Amazon EC2 instance as quickly as possible while keeping the EC2 instance running. The EC2 instance is the only resource in a public subnet and has active connections to other resources.
Which solution will contain the EC2 instance IMMEDIATELY?
- A. Create a new security group that has no inbound rules or outbound rules Attach the new security group to the EC2 instance.
- B. Create a new VPC for isolation Stop the EC2 instance Create a new AMI from the EC2 instance Use the new AMI to launch a new EC2 instance in the new VPC.
- C. Create a new network ACL that has a single Deny rule for inbound traffic and outbound traffic Associate the new network ACL with the subnet that contains the EC2 instance.
- D. Configure the existing security group for the EC2 instance Remove all existing inbound rules and outbound rules from the security group.
Answer: A
NEW QUESTION # 333
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