Correct Answer: C

An application programming interface (API) is a set of rules or protocols that defines how different systems or applications can communicate or interact with each other. An API version is a specific iteration or release of an API that may have different features or functionalities than previous or subsequent versions. API version incompatibility is the most likely cause of the script failure when switching hosting companies and using the same script that was previously used to deploy VMs in the new cloud, as it can result in errors or failures when trying to execute commands or functions that are not supported or recognized by the new cloud provider's API version. The issue can be resolved by updating or modifying the script to match the new cloud provider's API version. References: CompTIA Cloud+ Certification Exam Objectives, page 13, section 2.5

Correct Answer: C

Identity federation is a type of authentication mechanism that allows users to access multiple systems or applications across different domains or organizations with a single login credential. Identity federation can help integrate the cloud resources of Company A and Company B after Company A has acquired Company B, as it can enable seamless and secure access to both companies' cloud resources using the same IAM solution. Identity federation can also improve user convenience, productivity, and security, as it can simplify the login process, reduce login errors, and enhance password management. References: CompTIA Cloud+ Certification Exam Objectives, page 14, section 2.7

Reference: https://medium.com/@dinika.15/identity-federation-a-brief-introduction-f2f823f8795a

Correct Answer: E

The best technology to provide speed acceleration and a secure connection for a public-facing API that is hosted on a cloud provider is SSL (Secure Sockets Layer). SSL is a protocol that encrypts and authenticates the data between a client

and a server over an HTTP connection. It also compresses the data to reduce its size and improve its transmission speed. SSL can enhance the security and performance of an API by preventing unauthorized access, tampering, or

interception of the data. Reference:

[CompTIA Cloud+ Certification Exam Objectives], Domain 2.0 Security, Objective 2.2 Given a scenario, implement appropriate network security controls for a cloud environment.

Correct Answer: C

Correct Answer: D