_______ helps manage and monitor the entire computer network as a single administrative entity.

• A. Network Virtualization
• B. Cloud Orchestration
• C. Server Management
• D. Data Center Automation

Answer: (A)

Network virtualization is the idea behind managing the whole network as a single administrative entity. It creates a virtual network layer that pools and abstracts physical devices—switches, routers, links—so you can define, provision, and monitor network services in software rather than by touching each piece of hardware. This central control plane lets administrators set policies, isolate traffic, and rapidly deploy network configurations across the entire environment, giving a unified view and management experience.

Cloud orchestration coordinates resources across cloud environments, which may include networking but isn’t limited to managing the network as a single entity. Server management focuses on individual servers rather than the whole network. Data center automation automates repetitive data center tasks and workflows, which can include network aspects but doesn’t by itself represent treating the entire network as one administrative unit.