Certified Network Defender (CND) — Question 128

Docker provides Platform-as-a-Service (PaaS) through ________ and delivers containerized software packages.

Answer options

• A. Server-level virtualization
• B. Network-level virtualization
• C. OS-level virtualization
• D. Storage-level virtualization

Correct answer: C

Explanation

The correct answer, C. OS-level virtualization, refers to Docker's method of running multiple isolated user-space instances on a single operating system kernel. The other options, such as server-level, network-level, and storage-level virtualization, do not accurately describe Docker's containerization approach.