PCA (Prometheus Certified Associate) sample exam question with answer 511

Question:
Which of the following functions can be used to calculate the percentage change of a metric over a specified time range?

  1. delta
  2. increase
  3. rate
  4. changes
Answer:
B - is the correct answer. The increase function calculates the absolute increase of a counter over a specified time range. This can be used to calculate the percentage change of a metric by dividing the increase by the starting value of the metric