Amazon AWS Certified Security-Specialty Exam (page: 11)
Amazon AWS Certified Security - Specialty (SCS-C01)
Updated on: 24-Mar-2026

A Security Engineer is troubleshooting a connectivity issue between a web server that is writing log files to the logging server in another VPC. The Engineer has confirmed that a peering relationship exists between the two VPCs. VPC flow logs show that requests sent from the web server are accepted by the togging server but the web server never receives a reply

Which of the following actions could fix this issue1?

  1. Add an inbound rule to the security group associated with the logging server that allows requests from the web server
  2. Add an outbound rule to the security group associated with the web server that allows requests to the logging server.
  3. Add a route to the route table associated with the subnet that hosts the logging server that targets the peering connection
  4. Add a route to the route table associated with the subnet that hosts the web server that targets the peering connection

Answer(s): C



A company has the software development teams that are creating applications that store sensitive data in Amazon S3 Each team's data must always be separate. The company's security team must design a data encryption strategy for both teams that provides the ability to audit key usage. The solution must also minimize operational overhead. What should the security team recommend?

  1. Tell the application teams to use two different S3 buckets with separate IAM Key Management Service (IAM KMS) IAM managed CMKs Limit the key process to allow encryption and decryption of the CMKs to their respective teams only. Force the teams to use encryption context to encrypt and decrypt
  2. Tell the application teams to use two different S3 buckets with a single IAM Key Management Service (IAM KMS) IAM managed CMK Limit the key policy to allow encryption and decryption of the CMK only. Do not allow the teams to use encryption context to encrypt and decrypt
  3. Tell the application teams to use two different S3 buckets with separate IAM Key Management Service (IAM KMS) customer managed CMKs Limit the key policies to allow encryption and decryption of the CMKs to their respective teams only Force the teams to use encryption context to encrypt and decrypt
  4. Tell the application teams to use two different S3 buckets with a single IAM Key Management Service (IAM KMS) customer managed CMK Limit the key policy to allow encryption and decryption of the CMK only Do not allow the teams to use encryption context to encrypt and decrypt

Answer(s): A



A company hosts a web-based application that captures and stores sensitive data in an Amazon DynamoDB table. A security audit reveals that the application does not provide end-to-end data protection or the ability to detect unauthorized data changes The software engineering team needs to make changes that will address the audit findings.

Which set of steps should the software engineering team take?

  1. Use an IAM Key Management Service (IAM KMS) CMK. Encrypt the data at rest.
  2. Use IAM Certificate Manager (ACM) Private Certificate Authority Encrypt the data in transit.
  3. Use a DynamoDB encryption client. Use client-side encryption and sign the table items
  4. Use the IAM Encryption SDK. Use client-side encryption and sign the table items.

Answer(s): A



A Security Engineer launches two Amazon EC2 instances in the same Amazon VPC but in separate Availability Zones. Each instance has a public IP address and is able to connect to external hosts on the internet. The two instances are able to communicate with each other by using their private IP addresses, but they are not able to communicate with each other when using their public IP addresses.

Which action should the Security Engineer take to allow communication over the public IP addresses?

  1. Associate the instances to the same security groups.
  2. Add 0.0.0.0/0 to the egress rules of the instance security groups.
  3. Add the instance IDs to the ingress rules of the instance security groups.
  4. Add the public IP addresses to the ingress rules of the instance security groups.

Answer(s): D


Reference:

https://docs.IAM.amazon.com/IAMEC2/latest/UserGuide/security-group-rules- reference.html#sg-rules-other-instances



An company is using IAM Secrets Manager to store secrets that are encrypted using a CMK and are stored in the security account 111122223333. One of the company's production accounts. 444455556666, must to retrieve the secret values from the security account 111122223333. A security engineer needs to apply a policy to the secret in the security account based on least privilege access so the production account can retrieve the secret value only.

Which policy should the security engineer apply?






  1. Option A
  2. Option B
  3. Option C
  4. Option D

Answer(s): A



A company's Developers plan to migrate their on-premises applications to Amazon EC2 instances running Amazon Linux AMIs. The applications are accessed by a group of partner companies The Security Engineer needs to implement the following host-based security measures for these instances:

· Block traffic from documented known bad IP addresses

· Detect known software vulnerabilities and CIS Benchmarks compliance.

Which solution addresses these requirements?

  1. Launch the EC2 instances with an IAM role attached. Include a user data script that uses the IAM CLI to retrieve the list of bad IP addresses from IAM Secrets Manager and uploads it as a threat list in Amazon GuardDuty Use Amazon Inspector to scan the instances for known software vulnerabilities and CIS Benchmarks compliance
  2. Launch the EC2 instances with an IAM role attached Include a user data script that uses the IAM CLl to create NACLs blocking ingress traffic from the known bad IP addresses in the EC2 instance's subnets Use IAM Systems Manager to scan the instances for known software vulnerabilities, and IAM Trusted Advisor to check instances for CIS Benchmarks compliance
  3. Launch the EC2 instances with an IAM role attached Include a user data script that uses the IAM CLl to create and attach security groups that only allow an allow listed source IP address range inbound. Use Amazon Inspector to scan the instances for known software vulnerabilities, and IAM Trusted Advisor to check instances for CIS Benchmarks compliance
  4. Launch the EC2 instances with an IAM role attached Include a user data script that creates a cron job to periodically retrieve the list of bad IP addresses from Amazon S3, and configures iptabies on the instances blocking the list of bad IP addresses Use Amazon inspector to scan the instances for known software vulnerabilities and CIS Benchmarks compliance.

Answer(s): D



An application running on Amazon EC2 instances generates log files in a folder on a Linux file system. The instances block access to the console and file transfer utilities, such as Secure Copy Protocol (SCP) and Secure File Transfer Protocol (SFTP). The Application Support team wants to automatically monitor the application log files so the team can set up notifications in the future.

A Security Engineer must design a solution that meets the following requirements:

· Make the log files available through an IAM managed service.

· Allow for automatic monitoring of the logs.

· Provide an Interlace for analyzing logs.

· Minimize effort.

Which approach meets these requirements^

  1. Modify the application to use the IAM SDK. Write the application logs lo an Amazon S3 bucket
  2. install the unified Amazon CloudWatch agent on the instances Configure the agent to collect the application log dies on the EC2 tile system and send them to Amazon CloudWatch Logs
  3. Install IAM Systems Manager Agent on the instances Configure an automation document to copy the application log files to IAM DeepLens
  4. Install Amazon Kinesis Agent on the instances Stream the application log files to Amazon Kinesis Data Firehose and sot the destination to Amazon Elasticsearch Service

Answer(s): D



A company's security information events management (SIEM) tool receives new IAM CloudTrail logs from an Amazon S3 bucket that is configured to send all object created event notification to an Amazon SNS topic An Amazon SQS queue is subscribed to this SNS topic. The company's SEM tool then ports this SQS queue for new messages using an IAM role and fetches new log events from the S3 bucket based on the SQS messages.

After a recent security review that resulted m restricted permissions, the SEM tool has stopped receiving new CloudTral logs

Which of the following are possible causes of this issue? (Select THREE)

  1. The SOS queue does not allow the SQS SendMessage action from the SNS topic
  2. The SNS topic does not allow the SNS Publish action from Amazon S3
  3. The SNS topic is not delivering raw messages to the SQS queue
  4. The S3 bucket policy does not allow CloudTrail to perform the PutObject action
  5. The IAM role used by the 5EM tool does not have permission to subscribe to the SNS topic
  6. The IAM role used by the SEM tool does not allow the SQS DeleteMessage action.

Answer(s): A,D,F



Viewing Page 11 of 68



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