A development team is adding observability to a new payment service. They want to ensure that every log entry includes the user ID and the transaction ID, and that logs from different services can be correlated for a single transaction. What should they do?

Write a custom log formatter that appends the user ID and transaction ID to the log message string.

Use a correlation ID in the log message and rely on the log aggregator to parse it.

Use a logging library that supports structured logging and include the user ID and transaction ID as fields in every log entry.

Log the user ID and transaction ID only at the start and end of the transaction.

What is the primary purpose of including a unique request ID in application telemetry?

To identify the user who made the request

To encrypt telemetry data in transit

To reduce the volume of telemetry data

To correlate logs, metrics, and traces for a single request

A team is implementing distributed tracing for a new microservice. They want to ensure that trace context is propagated correctly across service calls. What should they do?

Use a tracing library that automatically propagates trace context via HTTP headers.

Use a global variable to store the trace ID.

Log the trace ID and manually correlate traces.

Manually pass the trace ID in the request body.

CiscoCertified DevNet Professional

Domain 1Objective 6

Evaluate an Application Design and Implementation Considering Observability 350-901 Practice Questions (Page 5)

Part of the 1.0 Software Development and Design domain, which accounts for 20% of the 350-901 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~10–16 in this domain), expect 1–1 from this objective — we provide 30 practice questions to prepare you well beyond it. (estimate)

30questions here

6free pages

9concepts

20%of the exam

Questions 21–25

21foundation · easy
Which log level should be used to record a condition that does not impact the current operation but may require attention?
Select an answer first
22application · medium
A development team is adding observability to a new payment service. They want to ensure that every log entry includes the user ID and the transaction ID, and that logs from different services can be correlated for a single transaction. What should they do?
Select an answer first
23foundation · easy
What is the primary purpose of including a unique request ID in application telemetry?
Select an answer first
24application · medium
A team is implementing distributed tracing for a new microservice. They want to ensure that trace context is propagated correctly across service calls. What should they do?
Select an answer first
25foundation · easy
Which metric type is appropriate for measuring the distribution of API response times?
Select an answer first

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Evaluate an Application Design and Implementation Considering Observability 350-901 Practice Questions (Page 5)

Questions 21–25

Which log level should be used to record a condition that does not impact the current operation but may require attention?

A development team is adding observability to a new payment service. They want to ensure that every log entry includes the user ID and the transaction ID, and that logs from different services can be correlated for a single transaction. What should they do?

What is the primary purpose of including a unique request ID in application telemetry?

A team is implementing distributed tracing for a new microservice. They want to ensure that trace context is propagated correctly across service calls. What should they do?

Which metric type is appropriate for measuring the distribution of API response times?

Keep studying — 1.0 Software Development and Design