Online Access Free PCA Practice Test

What popular open-source project is commonly used to visualize Prometheus data?

• A.Loki
• B.Kibana
• C.Thanos
• D.Grafana

How would you name a metric that measures gRPC response size?

• A.grpc_response_size_bytes
• B.grpc_response_size
• C.grpc_response_size_sum
• D.grpc_response_size_total

Which exporter would be best suited for basic HTTP probing?

• A.SNMP exporter
• B.Blackbox exporter
• C.Apache exporter
• D.JMX exporter

How do you calculate the average request duration during the last 5 minutes from a histogram or summary called http_request_duration_seconds?

• A.rate(http_request_duration_seconds_total[5m]) / rate(http_request_duration_second$_count[5m])
• B.rate(http_request_duration_seconds_total[5m]) / rate(http_request_duration_seconds_average[5m])
• C.rate(http_request_duration_seconds_sum[5m]) / rate(http_request_duration_seconds_count[5m])
• D.rate(http_request_duration_seconds_sum[5m]) / rate(http_request_duration_seconds_average[5m])

With the following metrics over the last 5 minutes:
up{instance="localhost"} 1 1 1 1 1
up{instance="server1"} 1 0 0 0 0
What does the following query return:
min_over_time(up[5m])

• A.{instance="localhost"} 1 {instance="server1"} 0
• B.{instance="server1"} 0