CAS-005 Exam Results

The most effective solution is Terraform (C), an Infrastructure as Code (IaC) tool that allows organizations to define and provision infrastructure resources across multiple cloud providers using a consistent configuration language. For a multicloud strategy, Terraform provides cloud-agnostic templates, ensuring that server creation, networking, and storage provisioning are automated and standardized across AWS, Azure, GCP, or other providers. This aligns with CAS-005 best practices for cloud automation and consistency.

PowerShell (A) and Bash (B) are scripting tools that can automate tasks but are typically tied to specific operating systems and lack multicloud orchestration capabilities. Ansible (D) is a strong automation tool for configuration management and application deployment, but Terraform is specifically designed to provision and manage infrastructure at scale across multicloud environments.

By using Terraform, the company can enforce consistent images, reduce human error, ensure compliance through reusable templates, and improve operational efficiency while maintaining flexibility across multiple providers.

To support email authenticity and enable analysis by a third-party platform, the protocols must verify the sender’s identity and provide metadata for inspection. According to the CompTIA SecurityX CAS-005 study guide (Domain 3: Cybersecurity Technology, 3.2):

DMARC (Domain-based Message Authentication, Reporting, and Conformance):DMARC builds on SPF and DKIM to enforce policies for email authenticity and provides reporting mechanisms to share authentication results with third parties for analysis.

DKIM (DomainKeys Identified Mail):DKIM adds a cryptographic signature to emails, allowing recipients to verify the sender’s domain and ensure the email’s integrity.

These two protocols are essential for authenticity and reporting.

Option C (TLS):TLS ensures encryption during transmission but does not address authenticity or reporting.

Option D (SPF):SPF verifies sender IP addresses but lacks reporting capabilities without DMARC.

Option E (DNSSEC):DNSSEC secures DNS queries but is not specific to email authenticity.

Option F (MX):MX records define mail servers, not authenticity or reporting.

Authenticated scans allow the scanner to verify installed patches and configurations, reducing false positives.

Other options:

A (CMDB updates) improve asset tracking but do not validate patch installations.

C (Advanced fingerprinting) improves accuracy but does not replace authentication.

D (Coordination with teams) is good practice but does not prevent false positives.