Exam 8: AWS Certified Security - Specialty (SCS-C01)

A global company must mitigate and respond to DDoS attacks at Layers 3, 4 and 7. All of the company's AWS applications are serverless with static content hosted on Amazon S3 using Amazon CloudFront and Amazon Route 53. Which solution will meet these requirements?

A Security Engineer is trying to determine whether the encryption keys used in an AWS service are in compliance with certain regulatory standards. Which of the following actions should the Engineer perform to get further guidance?

A company has a forensic logging use case whereby several hundred applications running on Docker on EC2 need to send logs to a central location. The Security Engineer must create a logging solution that is able to perform real-time analytics on the log files, grants the ability to replay events, and persists data. Which AWS Services, together, can satisfy this use case? (Choose two.)

A Security Engineer who was reviewing AWS Key Management Service (AWS KMS) key policies found this statement in each key policy in the company AWS account. What does the statement allow?

A Security Engineer is asked to update an AWS CloudTrail log file prefix for an existing trail. When attempting to save the change in the CloudTrail console, the Security Engineer receives the following error message: "There is a problem with the bucket policy." What will enable the Security Engineer to save the change?

A company is storing data in Amazon S3 Glacier. The security engineer implemented a new vault lock policy for 10TB of data and called initiate-vault-lock operation 12 hours ago. The audit team identified a typo in the policy that is allowing unintended access to the vault. What is the MOST cost-effective way to correct this?

A large government organization is moving to the cloud and has specific encryption requirements. The first workload to move requires that a customer's data be immediately destroyed when the customer makes that request. Management has asked the security team to provide a solution that will securely store the data, allow only authorized applications to perform encryption and decryption, and allow for immediate destruction of the data. Which solution will meet these requirements?

An organization wants to deploy a three-tier web application whereby the application servers run on Amazon EC2 instances. These EC2 instances need access to credentials that they will use to authenticate their SQL connections to an Amazon RDS DB instance. Also, AWS Lambda functions must issue queries to the RDS database by using the same database credentials. The credentials must be stored so that the EC2 instances and the Lambda functions can access them. No other access is allowed. The access logs must record when the credentials were accessed and by whom. What should the Security Engineer do to meet these requirements?

A security engineer noticed an anomaly within a company EC2 instance as shown in the image. The engineer must now investigate what is causing the anomaly. What are the MOST effective steps to take to ensure that the instance is not further manipulated, while allowing the engineer to understand what happened?

The Development team receives an error message each time the team members attempt to encrypt or decrypt a Secure String parameter from the SSM Parameter Store by using an AWS KMS customer managed key (CMK). Which CMK-related issues could be responsible? (Choose two.)

A company has developed a new Amazon RDS database application. The company must secure the RDS database credentials for encryption in transit and encryption at rest. The company also must rotate the credentials automatically on a regular basis. Which solution meets these requirements?

While analyzing a company's security solution, a Security Engineer wants to secure the AWS account root user. What should the Security Engineer do to provide the highest level of security for the account?

The Security Engineer is given the following requirements for an application that is running on Amazon EC2 and managed by using AWS CloudFormation templates with EC2 Auto Scaling groups: -Have the EC2 instances bootstrapped to connect to a backend database. -Ensure that the database credentials are handled securely. -Ensure that retrievals of database credentials are logged. Which of the following is the MOST efficient way to meet these requirements?

A Security Engineer is setting up an AWS CloudTrail trail for all regions in an AWS account. For added security, the logs are stored using server-side encryption with AWS KMS-managed keys (SSE-KMS) and have log integrity validation enabled. While testing the solution, the Security Engineer discovers that the digest files are readable, but the log files are not. What is the MOST likely cause?

A Security Engineer must design a system that can detect whether a file on an Amazon EC2 host has been modified. The system must then alert the Security Engineer of the modification. What is the MOST efficient way to meet these requirements?

An organization has a multi-petabyte workload that it is moving to Amazon S3, but the CISO is concerned about cryptographic wear-out and the blast radius if a key is compromised. How can the CISO be assured that AWS KMS and Amazon S3 are addressing the concerns? (Choose two.)

A company is developing a highly resilient application to be hosted on multiple Amazon EC2 instances. The application will store highly sensitive user data in Amazon RDS tables. The application must: Include migration to a different AWS Region in the application disaster recovery plan. Provide a full audit trail of encryption key administration events. Allow only company administrators to administer keys. Protect data at rest using application layer encryption. A Security Engineer is evaluating options for encryption key management. Why should the Security Engineer choose AWS CloudHSM over AWS KMS for encryption key management in this situation?

A company is hosting a web application on Amazon EC2 instances behind an Application Load Balancer (ALB). The application has become the target of a DoS attack. Application logging shows that requests are coming from small number of client IP addresses, but the addresses change regularly. The company needs to block the malicious traffic with a solution that requires the least amount of ongoing effort. Which solution meets these requirements?

Two Amazon EC2 instances in different subnets should be able to connect to each other but cannot. It has been confirmed that other hosts in the same subnets are able to communicate successfully, and that security groups have valid ALLOW rules in place to permit this traffic. Which of the following troubleshooting steps should be performed?

An application has been built with Amazon EC2 instances that retrieve messages from Amazon SQS. Recently, IAM changes were made and the instances can no longer retrieve messages. What actions should be taken to troubleshoot the issue while maintaining least privilege. (Select two.)