Amazon Web Services Related Exams
SCS-C02 Exam
Key domains include:
Incident Response
Logging and Monitoring
Infrastructure Security
Identity and Access Management
Data Protection
Secure Design and Implementation
The SCS-C02 certification is all about protecting AWS environments—think encryption, access control, threat detection, and compliance. On the other hand, the ANS-C01 certification dives deep into network architecture—including hybrid setups, routing protocols, and secure connectivity.
A company's security engineer is designing an isolation procedure for Amazon EC2 instances as part of an incident response plan. The security engineer needs to isolate a target instance to block any traffic to and from the target instance, except for traffic from the company's forensics team. Each of the company's EC2 instances has its own dedicated security group. The EC2 instances are deployed in subnets of a VPC. A subnet can contain multiple instances.
The security engineer is testing the procedure for EC2 isolation and opens an SSH session to the target instance. The procedure starts to simulate access to the target instance by an attacker. The security engineer removes the existing security group rules and adds security group rules to give the forensics team access to the target instance on port 22.
After these changes, the security engineer notices that the SSH connection is still active and usable. When the security engineer runs a ping command to the public IP address of the target instance, the ping command is blocked.
What should the security engineer do to isolate the target instance?
While securing the connection between a company's VPC and its on-premises data center, a Security Engineer sent a ping command from an on-premises host
(IP address 203.0.113.12) to an Amazon EC2 instance (IP address 172.31.16.139). The ping command did not return a response. The flow log in the VPC showed the following:
2 123456789010 eni-1235b8ca 203.0.113.12 172.31.16.139 0 0 1 4 336 1432917027 1432917142 ACCEPT OK
2 123456789010 eni-1235b8ca 172.31.16.139 203.0.113.12 0 0 1 4 336 1432917094 1432917142 REJECT OK
What action should be performed to allow the ping to work?
A company must create annual snapshots of Amazon Elastic Block Store (Amazon EBS) volumes. The company must retain the snapshots for 10 years. The company will use AWS Key Management Service (AWS KMS) to encrypt the EBS volumes and snapshots.
The encryption keys must be rotated automatically every year. Snapshots that were created in previous years must be readable after rotation of the encryption keys.
Which type of KMS keys should the company use for encryption to meet these requirements?