1 / 5
In distributed tracing, what is a 'trace'?
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A trace captures the whole journey of a request across services, tying the operations together.
2 / 5
What is a 'span' within a trace?
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A span represents one operation (with start/end time); spans nest to form the full trace.
3 / 5
Services pass a 'trace context' between them. Why?
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Propagating the trace context (trace ID, span ID) lets the backend stitch spans into a single trace.
4 / 5
An engineer finds a service adding high 'latency' in the trace. What does latency mean?
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Latency is the time a span takes; tracing pinpoints which service contributes the most delay.
5 / 5
Which sentence correctly uses 'sampling'?
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Sampling records only a subset of traces to limit performance and storage overhead.