SRE Observability & Logging 2

Question 1

Which log severity level should be used for events that indicate the system is in an unrecoverable state and will shut down?

Accepted Answer

CRITICAL/FATAL

Answer

CRITICAL or FATAL severity indicates an unrecoverable condition that forces the application to abort or shut down.

Question 2

In distributed tracing, what does a 'span' represent?

Accepted Answer

A named, timed operation within a trace representing a unit of work

Answer

A span is a named, timed operation that represents a single unit of work within a distributed trace.

Question 3

What is the primary purpose of a log aggregation pipeline in an SRE context?

Accepted Answer

To centralize logs from multiple sources for unified search and analysis

Answer

Log aggregation centralizes logs from many services into a single platform, enabling unified querying and correlation.

Question 4

Which OpenTelemetry signal type is used to capture request duration across microservices?

Accepted Answer

Traces

Answer

Traces capture timing and causality across microservice calls, making them ideal for measuring request duration end-to-end.

Question 5

An SRE notices log volume spikes correlate with increased latency. Which observability practice best helps confirm a causal relationship?

Accepted Answer

Correlating trace IDs with log entries during the spike window

Answer

Correlating trace IDs with logs during the spike allows you to follow specific requests and confirm whether log contention or logged errors cause latency.

(SRE) Site Reliability Engineering Foundation Certification Practice Test

(SRE) Site Reliability Engineering Foundation Certification Practice Test

SRE Observability & Logging 2