In June 2018, a poll asked a random sample of 1000 US adults whether global warming will be a serious problem for the United States  The results show that 51% think global warming will be a very serious problem, 27% think it will be a somewhat serious problem, and 21% think it will not be a serious problem. 4 pts      a. What is the intended population?______      b.  What is the sample? ______      c.  Is it reasonable to generalize this result and estimate that 21% of US adults think that global warming will not be a serious problem for the United States?  Yes or No _____

A developer assumes that adding more resilience techniques always improves resilience. According to”System Resilience Part 4″ this assumption is:

A drone has redundant batteries that automatically take over if the primary fails without needing a human to swap batteries. According to “System Resilience Part 4” this resilience technique is: 

A Ridgeline Grid postmortem finds that when the billing-reconciliation component threw an unhandled exception, the failure spread through direct object references into the telemetry pipeline and took substation monitoring down with it. The team rebuilds so each component sits behind an interface and a failure in one can’t cascade into another. No new monitoring or alerting is added. Which protection function does this rebuild strengthen?

Based on “System Resilience Part 3” which of the following is a detection resilience requirement?

Ridgeline Grid integrates its substation telemetry feed with a partner utility’s grid-management system. The integration project successfully establishes a reliable network connection and confirms both systems can send and receive messages without errors. Three months later, an outage response is delayed because the partner’s system interpreted a “voltage: 240” field from Ridgeline Grid as 240 millivolts instead of 240 volts. What does this reveal about the integration?

Two Ridgeline Grid platforms are up for a resilience comparison. Platform A detects substation communication loss within seconds but takes hours to restore full telemetry history afterward. Platform B is slow to notice the same failure but restores everything within minutes once it does. A director asks the architecture team for a straight answer on which platform is more resilient. What’s the right response?

Ridgeline Grid’s SOC monitors two different things about a substation’s SCADA gateway: how well it holds up if an actual intrusion attempt is under way right now, and how well it identifies known vulnerable configurations before anyone has attempted to exploit them. A junior analyst calls both of these “Threat Tolerance.” A senior analyst says only one of them is. Which one, and why?

Ridgeline Grid’s product owner writes a story: “the operator dashboard shows live substation status.” During backlog refinement, the security lead adds a separate note: “the dashboard must encrypt data at rest and enforce role-based access.” A new team member asks why the security note wasn’t just folded into the original story instead of being tracked as something extra. What’s the risk in doing that?

Ridgeline Grid is scoping availability for three different systems: the internal maintenance-scheduling tool (used only during normal business hours), the customer outage-reporting portal (used by the public around the clock, but scheduled maintenance windows are acceptable), and the substation safety-interlock system (which must never stop operating, planned or unplanned, for any reason). Which availability level does each require?