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GCDL Practice Question: A company's application is composed of 15…
This GCDL practice question tests your understanding of a company's application is composed of 15…. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A company's application is composed of 15 microservices. When a performance issue occurs, the team struggles to determine which service is causing latency since request traces span multiple services. Which Google Cloud service helps identify which specific service in a microservices chain is causing slowdowns?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Cloud Logging — search logs for error messages across all 15 services.
Log searching finds errors after they occur but doesn't correlate cross-service request timelines or show which service hop added latency in a distributed trace.
B
Distractor review
Security Command Center — scan for misconfigurations causing performance issues.
SCC identifies security findings and misconfigurations, not application performance issues or distributed request tracing.
C
Distractor review
Cloud Monitoring dashboards — create per-service CPU utilization graphs.
CPU graphs show resource utilization but don't correlate individual request flows across services or show which service contributed to a specific slow request.
D
Best answer
Cloud Trace — captures distributed request traces showing end-to-end latency across all microservices.
Cloud Trace shows the complete request journey: which service was called, in what order, and how long each call took. The Gantt-chart view immediately reveals the latency culprit service.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Related practice questions
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A traditional retailer currently maintains its own data centers, purchasing servers every 3–5 years and paying for facilities, power, and staff regardless of demand. When it migrates its workloads to the public cloud, which change in cost model does it experience?
Question 2
An e-commerce company plans its infrastructure for peak shopping events (e.g., Black Friday) which drive 50× normal traffic. On-premises, they must maintain 50× capacity year-round. In the cloud, they provision 50× capacity only during peak periods. Which cloud characteristic enables this cost optimization?
Question 3
Which term describes the process by which organizations integrate digital technology into all areas of their business, fundamentally changing how they operate and deliver value to customers?
Question 4
When a company moves from maintaining its own data center to using Google Cloud, which operational responsibility does Google assume that the company previously managed?
Question 5
A hospital runs a patient records system that must remain on-premises due to strict regulatory data residency requirements. However, they also want to use cloud-based AI for diagnostic imaging analysis. Which cloud deployment model best describes their architecture?
Question 6
What is virtualization in the context of cloud computing, and why is it fundamental to how cloud providers deliver services?
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FAQ
Questions learners often ask
What does this GCDL question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Cloud Trace — captures distributed request traces showing end-to-end latency across all microservices. — Cloud Trace is Google Cloud's distributed tracing service. It captures request traces across multiple services, showing the timeline of each hop (service-to-service call) with latency data. When a slow request is traced, Cloud Trace reveals exactly which service call in the chain consumed the most time, enabling targeted debugging. It integrates automatically with many Google Cloud services and supports OpenTelemetry.
What should I do if I get this GCDL question wrong?
Identify which GCDL exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
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This GCDL practice question is part of Courseiva's free Google Cloud 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 GCDL exam.