350-501 Automation and Assurance Practice Question
A large SP is using model-driven telemetry to collect interface statistics from 5000 routers to a centralized collector. The collector is deployed on two servers with load balancing. Recently, the operations team noticed that some router telemetry streams are missing data for intervals of up to 5 minutes during peak hours. The engineer suspects packet loss between the routers and collector. The routers are sourced from different vendors but all support gRPC dial-out telemetry. The engineer wants to identify which routers are affected. The current configuration uses a single telemetry collector IP with port 5000. What step should the engineer take to isolate the problematic routers?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Check the telemetry subscription statistics on each router for drops and errors.
Checking telemetry subscription statistics on each router (e.g., using show telemetry statistics) provides per-router counters for drops, errors, and sequence gaps. This directly identifies which routers are experiencing loss. Other options are either too manual, network-wide, or do not isolate individual routers.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use a packet capture on the network to identify drops.
Why it's wrong here
Packet capture is network-wide and would require filtering to identify specific routers; it is inefficient for 5000 devices.
- ✗
Enable telemetry debugging on each router and review logs.
Why it's wrong here
Debugging generates excessive data and is not practical for 5000 routers; it would also affect performance.
- ✓
Check the telemetry subscription statistics on each router for drops and errors.
Why this is correct
Routers maintain per-subscription counters (e.g., sent packets, dropped packets, sequence errors) that directly pinpoint problematic devices.
- ✗
Configure a second collector on a different port and split the routers across two collectors.
Why it's wrong here
This would reduce load but not identify which routers are dropping data; it does not isolate the problem.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-501 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-501 exam.