- A
Use a service account with roles/monitoring.metricWriter on the on-premises application
The service account is used to authenticate API calls from on-premises.
- B
Enable Cloud NAT to provide outbound connectivity
Why wrong: Cloud NAT is for GCP resources without external IPs, not for on-premises.
- C
Configure VPC Service Controls to restrict data exfiltration
VPC Service Controls add a security perimeter around Cloud Monitoring API.
- D
Set up a Cloud VPN tunnel between on-premises and VPC
VPN provides a dedicated, encrypted tunnel for traffic to Google Cloud.
- E
Use Cloud Monitoring's Agent to pull metrics from on-premises
Why wrong: Cloud Monitoring Agent is for pulling metrics from GCP resources, not on-premises.
PCDE Implementing Service Monitoring Strategies Practice Question
This PCDE practice question tests your understanding of implementing service monitoring strategies. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
You are designing a monitoring strategy for a hybrid cloud environment where on-premises services send metrics to Cloud Monitoring via the Monitoring API. The on-premises network has limited outbound connectivity and can only reach Google Cloud through a few static IPs. You need to ensure that custom metrics are ingested reliably and cost-effectively. Which THREE actions should you take? (Choose 3)
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 a service account with roles/monitoring.metricWriter on the on-premises application
To handle limited connectivity, using a Cloud VPN tunnel ensures secure and reliable connectivity. The Monitoring API requires authentication via a service account, and a VPC Service Controls perimeter can protect data exfiltration. Pushing metrics from on-premises is the standard approach. Pulling is not supported.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
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 service account with roles/monitoring.metricWriter on the on-premises application
Why this is correct
The service account is used to authenticate API calls from on-premises.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
Enable Cloud NAT to provide outbound connectivity
- ✓
Configure VPC Service Controls to restrict data exfiltration
Why this is correct
VPC Service Controls add a security perimeter around Cloud Monitoring API.
Related concept
Static NAT maps one inside address to one outside address.
- ✓
Set up a Cloud VPN tunnel between on-premises and VPC
- ✗
Use Cloud Monitoring's Agent to pull metrics from on-premises
Why it's wrong here
Cloud Monitoring Agent is for pulling metrics from GCP resources, not on-premises.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A startup's cloud architect reviews their monthly bill and notices costs are higher than expected for a long-running batch job. Switching from on-demand instances to Reserved Instances — or using Spot/Preemptible VMs — can reduce compute costs by up to 72 %. Questions like this test whether you understand the tradeoffs between commitment, flexibility, and cost across cloud pricing models.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PCDE NAT questions on configuration and troubleshooting.
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Implementing Service Monitoring Strategies — study guide chapter
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FAQ
Questions learners often ask
What does this PCDE question test?
Implementing Service Monitoring Strategies — This question tests Implementing Service Monitoring Strategies — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Use a service account with roles/monitoring.metricWriter on the on-premises application — To handle limited connectivity, using a Cloud VPN tunnel ensures secure and reliable connectivity. The Monitoring API requires authentication via a service account, and a VPC Service Controls perimeter can protect data exfiltration. Pushing metrics from on-premises is the standard approach. Pulling is not supported.
What should I do if I get this PCDE question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PCDE NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
About these practice questions
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Last reviewed: Jul 4, 2026
This PCDE 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 PCDE exam.
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