When stakeholders express concerns about the volume of communication, it's important to review and adjust the communication plan to ensure it meets the project's needs and stakeholders' preferences. A RACI matrix is useful for defining roles and responsibilities but does not address communication frequency or methods directly. Escalating the issue may not be necessary if it can be resolved by revising the plan. Informing the CCB (Change Control Board) to stop communication is not advisable as the CCB's role is to oversee changes, not to manage day-to-day communications. Reference = The CompTIA Project+ Certification Study Guide provides detailed information on managing the project life cycle, establishing communication plans, and handling stakeholder concerns1.

A weak matrix organizational structure is one where the project manager has low authority and the functional manager has high authority. The project manager is considered to be a coordinator or an escalator, and the team members are primarily loyal to their functional units. This can cause issues with team motivation, communication, and performance1

Update the project charter. Updating the project charter would be the next step for the project manager after identifying the project team during the project initiation phase. A project charter is a document that formally authorizes a project and defines its purpose, scope, objectives, deliverables, milestones, roles and responsibilities, assumptions, constraints, risks, budget, and timeline. A project charter can help to align the expectations and interests of all stakeholders involved in a project and provide direction and guidance for planning and executing the project.

The total amount that should be budgeted for the task is calculated by adding the expected value of the risk to the original estimate. The expected value of the risk is the product of the probability and the impact of the risk.
In this case, the expected value of the risk is 0.2 x (5 days and $1,000) = 1 day and $200. Therefore, the total amount that should be budgeted for the task is 9 days and $3,000 + 1 day and $200 = 10 days and $3,2001.

Outsourcing the development of a system component due to a lack of internal resources is a risk response strategy known as 'transfer.' This approach shifts the risk to a third party who will now be responsible for managing that portion of the project. It is commonly used when an organization does not have the expertise or capacity to handle specific risks internally.
Reference = The answer is based on standard project management practices and the typical use of risk response strategies in the field. For detailed information, please refer to the CompTIA Project+ Study Guide and other official CompTIA resources.