312-50V13 Question #462: Real Exam Question with Answer & Explanation

Question

Alex, a cloud security engineer working in Eyecloud Inc. is tasked with isolating applications from the underlying infrastructure and stimulating communication via well-defined channels. For this purpose, he used an open-source technology that helped him in developing, packaging, and running applications; further, the technology provides PaaS through OS-level visualization, delivers containerized software packages, and promotes fast software delivery. What is the cloud technology employed by Alex in the above scenario?

Options

• AVirtual machine
• BServerless computing
• CDocker
• DZero trust network

Explanation

Alex is using Docker, an open-source containerization technology that packages applications into isolated units for efficient development and deployment using OS-level virtualization.

Common mistakes.

• A. A virtual machine provides hardware-level virtualization with a full guest OS, which differs from Docker's OS-level virtualization and lightweight container approach.
• B. Serverless computing is an execution model where the cloud provider manages server infrastructure, rather than a technology for packaging and isolating applications directly.
• D. A Zero Trust Network is a security model focusing on strict authentication and authorization, not a technology for application packaging, isolation, or delivery.

Concept tested. Containerization (Docker)

Reference. https://learn.microsoft.com/en-us/dotnet/architecture/containerized-lifecycle/what-is-docker

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