Performance Monitoring

Correct Answer: Perform a root cause analysis to understand the reason.

The correct answer is 'Perform a root cause analysis to understand the reason.' According to the Project Management Body of Knowledge (PMBOK) Guide, understanding the cause of shifts or changes in project performance is critical before you can address it adequately. Hence, a root cause analysis is the right choice to identify the cause of the unexpected shift in the first place. Other options are not ideal because: 'Ignore the shift assuming it to be a one-time occurrence.' This isn't best practice as it can potentially escalate into a more significant issue. 'Increase project resources to improve performance.' Before allocating additional resources, it's best to understand the cause of the problem. This could potentially worsen the situation as it doesn't directly address the cause. 'Inform the stakeholders about the shift in performance.' While communication is essential in project management, the priority should be understanding the cause behind the performance shift first before communicating anything to stakeholders.

Correct Answer: Wireshark

The best tool to use when experiencing slow throughput on specific devices is Wireshark. This tool allows network administrators to capture and interactively browse the traffic running on a computer network. It helps to identify network issues and pinpoint the exact point of a slowdown, hence useful in this case. The other tools, while useful in their own areas, do not provide this level of insight. Ping is mainly used to check if a host is reachable and to measure network latency, not for identifying in-depth issues. SNMP (Simple Network Management Protocol) is more for managing devices on the network, it can inform about general issues but not thorough like Wireshark. Lastly, netstat provides statistics and information about network connections but doesn't have the packet-level analysis capabilities of Wireshark and is not typically used to diagnose slow throughput on specific devices.

Correct Answer: The project is over budget

The cost performance index (CPI) is a measure of the financial effectiveness and efficiency of a project. It is calculated by dividing the earned value by the actual cost. It indicates how much work is being accomplished for each unit of cost. A CPI value of less than one indicates that the project is over budget, which means that the project is costing more than what was planned or budgeted for. The other answers are incorrect because having a CPI of less than one does not indicate whether a project is under budget, ahead of schedule, or behind schedule.