Certified Information Systems Security Professional (CISSP) — Question 2

Building blocks for software-defined networks (SDN) require which of the following?

Answer options

• A. The SDN is composed entirely of client-server pairs.
• B. Random-access memory (RAM) is used in preference to virtual memory.
• C. The SDN is mostly composed of virtual machines (VM).
• D. Virtual memory is used in preference to random-access memory (RAM).

Correct answer: C

Explanation

The correct answer is C because software-defined networks mainly utilize virtual machines (VM) to enable dynamic network management and resource allocation. Options A and B are incorrect since SDN architecture is not limited to client-server pairs and does not favor RAM over virtual memory. Option D is also incorrect as SDN design does not prioritize RAM over virtual memory.