Which of the following architectures would allow the network-forwarding elements to adapt to new business requirements with the least amount of operating effort?
Correct Answer: A
Explanation
Software-defined network (SDN) is a network architecture that allows the network-forwarding elements to be controlled by a centralized software application. This enables the network to adapt to new business requirements with the least amount of operating effort, as the network administrator can configure and manage the network from a single console, without having to manually configure each device individually. SDN also provides more flexibility, agility, and scalability for the network, as it can dynamically adjust the network resources and policies based on the application needs and traffic conditions.
References:
CompTIA Network+ Certification Exam Objectives, page 5, section 1.3: "Explain the concepts and characteristics of routing and switching." Software-Defined Networking - CompTIA Network+ N10-007 - 1.3, video lecture by Professor Messer.