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GCDL Practice Question: Planning a cloud architecture and needs to decide…
This GCDL practice question tests your understanding of planning a cloud architecture and needs to decide…. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 is planning a cloud architecture and needs to decide between a monolithic application design and a microservices architecture. What is the most significant operational trade-off between these two approaches in a cloud environment?
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
Monoliths can only run on-premises, while microservices were designed specifically for cloud environments
Both monoliths and microservices can run in cloud environments. Monoliths run on cloud VMs or container platforms. Cloud does favor microservices' strengths (independent scaling, isolated failure domains) but doesn't prevent monolith deployment.
B
Best answer
Microservices enable independent deployment and scaling per component but introduce distributed systems complexity (network overhead, distributed tracing, service discovery, consistency challenges); monoliths are simpler to operate but scale and deploy as a unit
This accurately captures the key trade-off. Microservices' benefits (independent scale, isolated failures, technology diversity) come with real operational costs: inter-service communication adds latency and failure modes, distributed tracing replaces simple stack traces, and data consistency across services requires careful design.
C
Distractor review
Microservices are always cheaper to operate in the cloud because each service uses fewer resources than a monolith
Microservices introduce overhead: multiple service instances, service mesh sidecar proxies, additional containers for service discovery and API gateways. Total resource usage is often higher than a well-sized monolith for the same workload.
D
Distractor review
Monolithic applications cannot be scaled horizontally in cloud environments
Stateless monoliths can be scaled horizontally by running multiple identical instances behind a load balancer. Horizontal scaling is not exclusive to microservices.
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
Related GCDL practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
More questions from this exam
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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: Microservices enable independent deployment and scaling per component but introduce distributed systems complexity (network overhead, distributed tracing, service discovery, consistency challenges); monoliths are simpler to operate but scale and deploy as a unit — Monoliths are simpler to develop, test, and deploy initially but scale as a unit and create tight coupling — a change to one part requires deploying the whole application. Microservices enable independent deployment and scaling of components but introduce distributed systems complexity (network calls, service discovery, distributed tracing, eventual consistency). Neither is universally better — the trade-off depends on team size, domain complexity, and operational maturity.
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.