Giving the maintenance window a buffer, for example, 15 minutes before and after actual maintenance work, is a best practice. This accounts for any unforeseen issues that might arise and ensures that the maintenance is completed without hurrying, as well as allowing time for any pre-maintenance and post-maintenance checks.

Clicking an episode’s Acknowledge button typically changes the status from New to Acknowledged and assigns the current user as the owner. This ensures that the episode has been noted and the responsibility for it is assigned.

The feature that allows toggling displaying KPI values from more than one service on a single widget is service swapping. This functionality enables users to switch between different services within the same widget to compare KPI values directly.

A characteristic of base searches is that the base search will execute whether or not a KPI needs it. This ensures that the necessary data is always retrieved for any potential calculation. Typically, filtering and specific calculations are managed at the KPI level rather than at the base search level, making options A and B irrelevant. Option C is incorrect as efficiency increases with more KPIs sharing a common base search, not fewer.

The ITSI Glass Table editor allows users to create glass tables, configure service swapping, and add KPI metric lanes to glass tables. Creating glass tables is a fundamental capability, and service swapping configuration is also a common feature. Adding KPI metric lanes is specific to glass tables as it helps in visualizing and monitoring KPIs directly on the glass table. Correlation search creation, however, is not a capability of the Glass Table editor.