Google ACE Deploying and implementing a cloud solution Practice Question
This ACE practice question tests your understanding of deploying and implementing a cloud solution. 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 wants to expose a web application running on Compute Engine instances behind a managed instance group. They need a single IP address that distributes incoming HTTP traffic across instances. Which type of load balancer should they use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
External HTTP(S) Load Balancer
Option D is correct because the External HTTP(S) Load Balancer is a regional or global, proxy-based Layer 7 load balancer that provides a single external IP address for distributing incoming HTTP traffic across Compute Engine instances in a managed instance group. It supports HTTP and HTTPS protocols, health checks, and autoscaling, making it ideal for web applications.
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.
✗
Internal TCP/UDP Load Balancer
Why it's wrong here
Internal load balancer is for traffic within a VPC, not for external clients.
✗
External TCP/UDP Network Load Balancer
Why it's wrong here
Network load balancer is for TCP/UDP traffic and does not provide HTTP-specific features like URL routing.
✗
SSL Proxy Load Balancer
Why it's wrong here
SSL proxy is for non-HTTPTCP traffic with SSL offload, not for HTTP.
✓
External HTTP(S) Load Balancer
Why this is correct
This is the correct choice for HTTP traffic distribution with a single IP.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the External HTTP(S) Load Balancer with the External TCP/UDP Network Load Balancer, mistakenly thinking that any load balancer with an external IP can handle HTTP traffic, but the Network Load Balancer lacks Layer 7 features and is not optimized for HTTP workloads.
Detailed technical explanation
How to think about this question
The External HTTP(S) Load Balancer uses a global anycast IP address and a proxy-based architecture that terminates client connections at the edge of Google's network, then forwards requests to backend instances over HTTP/1.1 or HTTP/2. It supports advanced features like URL-based routing, session affinity, and Cloud CDN integration, and it can be configured with a single IP address for both IPv4 and IPv6 traffic. A subtle behavior is that it requires a health check to be defined for the backend service, and if the health check fails, the load balancer will stop sending traffic to unhealthy instances, which can cause unexpected downtime if misconfigured.
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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this ACE question in full detail.
Deploying and implementing a cloud solution — This question tests Deploying and implementing a cloud solution — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: External HTTP(S) Load Balancer — Option D is correct because the External HTTP(S) Load Balancer is a regional or global, proxy-based Layer 7 load balancer that provides a single external IP address for distributing incoming HTTP traffic across Compute Engine instances in a managed instance group. It supports HTTP and HTTPS protocols, health checks, and autoscaling, making it ideal for web applications.
What should I do if I get this ACE 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.
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Question Discussion
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