Evaluate an Application Design and Implementation Considering Observability 350-901 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   What is the primary benefit of structured logging over unstructured logging?

   • AStructured logs eliminate the need for log levels
   • BStructured logs can be parsed and queried programmatically
   • CStructured logs are automatically encrypted
   • DStructured logs are always smaller in size
   Reveal Solution Discussion Select an answer first
2. 7application · medium

   A team wants to monitor the health of a message queue consumer. They need to know the number of messages processed per second and the current queue depth. Which metric types should they use?

   • AA counter for both messages processed and queue depth.
   • BA counter for messages processed and a gauge for queue depth.
   • CA gauge for messages processed and a counter for queue depth.
   • DA histogram for messages processed and a counter for queue depth.
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   What is the primary purpose of distributed tracing?

   • ATo aggregate logs from multiple services into a single store
   • BTo collect CPU and memory usage from each service
   • CTo automatically fix errors in microservices
   • DTo track the flow and timing of a request across multiple services
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   A team is building a checkout microservice that processes orders. They need to trace a single user's request across multiple internal calls and also correlate those calls with the logs generated by each service. The team uses a centralized log aggregator and wants to minimize changes to existing logging code. Which approach should they use?

   • ALog the full request payload in every service so that the payload can be searched to find related entries.
   • BAssign a random ID to each log entry and use the log aggregator's search to find entries with the same ID.
   • CGenerate a unique correlation ID at the API gateway and pass it in an HTTP header to all downstream services, including it in every log entry.
   • DUse the service name and timestamp in each log entry to manually match entries across services.
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   A team wants to detect anomalies in their application's error rate. They have Prometheus metrics. Which approach is most effective?

   • AManually review the error rate dashboard every day.
   • BSet a static threshold alert for error rate, such as >5%.
   • CUse a machine learning-based anomaly detection tool that learns the normal pattern.
   • DUse a simple alert that fires when the error rate is not zero.
   Reveal Solution Discussion Select an answer first