Which definition best describes the staging plan development service component within the design phase?

A.
helps improve the infrastructure security system of the customer

B.
assesses the current state of the operations and network management infrastructure of the customer, including people, processes and tools, to identify issues and opportunities

C.
assesses the ability of the site facilities to accommodate the proposed infrastructure

D.
includes the development and execution of proof-of-concept tests, validates the infrastructure high-level design, and identifies any design enhancements

E.
provides a step-by-step plan detailing the installation and service-commission requirement tasks to be staged in a controlled implementation environment that emulates a customer network

F.
helps improve the performance and functionality of the infrastructure operations and network management system

Explanation:

During the Design phase of the Network Lifecycle, the Project Team needs to ensure the network design meets business requirements, while attempting to foresee and prevent potential network bottlenecks.
This service component provides a comprehensive, implementation-ready detailed design. A detailed design considers business requirements and associated performance, availability, resiliency, maintainability, resource-capacity, and security criteria. You should do in this phase: Identify the Detailed Design Development process. Identify key activities and tasks for Detailed Design Development. Identify how to address potential customer objections that may be raised regarding Detailed Design Development.