Certified Ethical Hacker (CEH v11) — Question 365

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 virtualization, delivers containerized software packages, and promotes fast software delivery.
What is the cloud technology employed by Alex in the above scenario?

Answer options

• A. Virtual machine
• B. Docker
• C. Zero trust network
• D. Serverless computing

Correct answer: B

Explanation

The correct answer is B, Docker, because it is specifically designed for developing, packaging, and running applications in containers, providing OS-level virtualization and promoting fast delivery. Option A, Virtual machine, does not focus on containerization; Option C, Zero trust network, is a security model unrelated to the technology described; and Option D, Serverless computing, does not fit the context of application isolation and containerization.