Exam CAS-PA topic 1 question 55 discussion

A is the only syntactically incorrect formula, first bracket is NOT used in the formula ever. You can select contributing indicators in a formula to not be broken down. When a user applies a breakdown to the formula indicator, the breakdown does not apply to these indicators. When you apply a breakdown to a formula indicator, such as on a breakdown dashboard, the breakdown applies to all contributing indicators. You prevent a contributing indicator from being broken down using the syntax {{Indicator}}. You can also prevent a contributing indicator from following breakdowns by clearing the Allow breakdowns check box in the Browse for an indicator dialog.

A is correct, check this Formula indicator in a PDI Instance: % new high risk changes

Given answer is correct. Accordingly to the documentation (https://docs.servicenow.com/bundle/washingtondc-now-intelligence/page/use/performance-analytics/concept/c_ExcludingBreakdownsFromFormulas.html) it is possible to use curly brackets, which will not follow breakdowns for the whole formula indicator. Example given on docs: 'You can still specify a breakdown and element for a contributing indicator that does not follow breakdowns for the whole formula indicator. Consider the formula [[Incidents]] / {{Customers > importance = high}}. In this example, the formula denominator is always broken down to include only the high-importance customers. Any breakdown applied to the formula indicator, such as the region breakdown, does not apply to the Customers indicator.'

The syntactically incorrect formula, given that all indicator names are valid, is: D. [[Number of new incidents]] / {{Number of new incidents}} * 100 The use of double curly braces {{}} is incorrect syntax for referencing indicators or constants in Performance Analytics formulas. Indicators should be referenced with double square brackets [[]], and constants don't typically require any special brackets in this context.