- A
Use automatic scaling.
Automatic scaling adjusts instance count based on traffic.
- B
Use basic scaling with idle timeout.
Why wrong: Basic scaling is for instances that serve one request at a time and may not handle spikes well.
- C
Use manual scaling with a fixed number of instances.
Why wrong: Manual scaling does not automatically handle spikes.
- D
Use a combination of manual and automatic scaling.
Why wrong: Combination is not supported; scaling mode is exclusive.
Question 44 of 999
Configure Automatic Scaling on App Engine Standard Environment for Traffic Spikes
This PCD practice question tests your understanding of deploying applications. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 startup wants to deploy a web application on App Engine standard environment. They need to handle sudden traffic spikes automatically. How should they configure scaling?
Quick Answer
The answer is to configure automatic scaling on App Engine standard environment. This is the correct choice because automatic scaling dynamically adjusts the number of running instances based on request load, allowing the application to handle sudden traffic spikes without manual intervention. It works by monitoring metrics like request latency and throughput, then spinning up or shutting down instances as needed, which is ideal for unpredictable workloads. On the Google Professional Cloud Developer exam, this question tests your understanding of the three scaling types—automatic, manual, and basic—and their appropriate use cases. A common trap is confusing basic scaling with automatic scaling; remember that basic scaling is designed for batch or ad-hoc jobs that handle one request at a time, not for live traffic spikes. For a memory tip, think “Auto for spikes, Manual for control, Basic for batch.”
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
✓
Use automatic scaling.
Automatic scaling is the correct choice because App Engine standard environment natively supports automatic scaling, which dynamically adds or removes instances based on request rate, latency, and other metrics. This allows the application to handle sudden traffic spikes without manual intervention, as the platform automatically provisions resources to meet demand.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 automatic scaling.
Why this is correct
Automatic scaling adjusts instance count based on traffic.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use basic scaling with idle timeout.
Why it's wrong here
Basic scaling is for instances that serve one request at a time and may not handle spikes well.
- ✗
Use manual scaling with a fixed number of instances.
Why it's wrong here
Manual scaling does not automatically handle spikes.
- ✗
Use a combination of manual and automatic scaling.
Why it's wrong here
Combination is not supported; scaling mode is exclusive.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap is that basic scaling might seem appropriate because it can start instances on demand, but it introduces startup latency and does not automatically scale down based on load, making automatic scaling the better choice for handling sudden traffic spikes in App Engine standard environment.
Detailed technical explanation
How to think about this question
Automatic scaling in App Engine standard environment uses the 'autoscaling' configuration, which allows you to set parameters like min/max instances, target CPU utilization, and target throughput utilization. Under the hood, the scheduler uses a combination of request latency and pending requests to decide when to spin up new instances, ensuring that spikes are absorbed without cold starts if min instances are set appropriately. A real-world scenario is a flash sale where traffic can increase 10x in seconds; automatic scaling with a reasonable max instances setting ensures the app stays responsive.
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.
TExam Day Tips
- 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.
Real-world example
How this comes up in practice
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Deploying applications — study guide chapter
Learn the concepts, then practise the questions
- →
Deploying applications practice questions
Targeted practice on this topic area only
- →
All PCD questions
999 questions across all exam domains
- →
Google Professional Cloud Developer study guide
Full concept coverage aligned to exam objectives
- →
PCD practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related PCD practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Manage a Solution that Can Span Multiple Database Systems practice questions
Practise PCD questions linked to Manage a Solution that Can Span Multiple Database Systems.
Deploy Scalable and Highly Available Databases in Google Cloud practice questions
Practise PCD questions linked to Deploy Scalable and Highly Available Databases in Google Cloud.
Design Scalable and Highly Available Cloud Database Solutions practice questions
Practise PCD questions linked to Design Scalable and Highly Available Cloud Database Solutions.
Migrate Data Solutions practice questions
Practise PCD questions linked to Migrate Data Solutions.
Designing highly scalable, available, and reliable cloud-native applications practice questions
Practise PCD questions linked to Designing highly scalable, available, and reliable cloud-native applications.
Building and testing applications practice questions
Practise PCD questions linked to Building and testing applications.
Deploying applications practice questions
Practise PCD questions linked to Deploying applications.
Integrating Google Cloud services practice questions
Practise PCD questions linked to Integrating Google Cloud services.
Managing application performance monitoring practice questions
Practise PCD questions linked to Managing application performance monitoring.
PCD fundamentals practice questions
Practise PCD questions linked to PCD fundamentals.
PCD scenario practice questions
Practise PCD questions linked to PCD scenario.
PCD troubleshooting practice questions
Practise PCD questions linked to PCD troubleshooting.
Practice this exam
Start a free PCD practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this PCD question test?
Deploying applications — This question tests Deploying applications — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use automatic scaling. — Automatic scaling is the correct choice because App Engine standard environment natively supports automatic scaling, which dynamically adds or removes instances based on request rate, latency, and other metrics. This allows the application to handle sudden traffic spikes without manual intervention, as the platform automatically provisions resources to meet demand.
What should I do if I get this PCD question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
More PCD practice questions
- A company is deploying a microservices architecture on GKE. They need to expose a set of related microservices under a s…
- You need to monitor the CPU usage of a Compute Engine instance and trigger an alert when it exceeds 80% for 5 minutes. W…
- A Cloud Bigtable instance has a single cluster. To improve availability and read throughput, the team decides to add a s…
- A developer wants to enable IAM database authentication for Cloud SQL for PostgreSQL. Which IAM role must be granted to…
- A company is using Cloud Bigtable for a time-series workload. They want to monitor performance and identify hot spots. W…
- A company wants to run hybrid transactional/analytical processing (HTAP) workloads on a PostgreSQL-compatible database w…
Last reviewed: Jul 4, 2026
This PCD 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 PCD exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.