PCA (Prometheus Certified Associate) sample exam question with answer 538

Question:
Which of the following statements are true regarding the use of histograms in Prometheus? Select all that apply.

1. Histograms are used to measure the frequency of events that fall into predefined buckets
2. Histograms are useful for measuring event durations and response times
3. Histograms provide information about the minimum, maximum, and average event value
4. Histograms provide information about the event distribution, including percentiles and standard deviation

Answer:
B, D - are the correct answers