Quick Answer
The answer is Dedicated Interconnect and Cloud VPN. Dedicated Interconnect provides a direct, private physical connection between your on-premises network and Google’s VPC, bypassing the public internet for low latency and high reliability, while Cloud VPN uses IPsec tunnels over the internet to create an encrypted, secure link. On the Google Professional Cloud Architect exam, this tests your understanding of hybrid connectivity options—specifically, that both a private dedicated link and an encrypted internet-based tunnel are valid, but Partner Interconnect (a third-party link) and VPC peering (which connects VPCs, not on-premises) are not. A common trap is assuming only private connections count; remember that Cloud VPN is a fully supported, exam-approved method for secure on-premises to VPC connectivity. Memory tip: think “Direct and Tunnel”—Dedicated for private, Cloud VPN for encrypted internet.
This PCA practice question tests your understanding of manage and provision cloud infrastructure. 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.
Which TWO options are valid ways to connect an on-premises network to a VPC in Google Cloud? (Choose two.)
Cloud VPN.
Cloud VPN provides IPsec tunnels to on-premises.
Dedicated Interconnect.
Provides direct physical connection from on-premises.
Cloud NAT.
Why wrong: Provides outbound internet to instances without external IPs.
VPC Network Peering.
Why wrong: Used for connecting VPCs within Google Cloud.
Private Google Access.
Why wrong: Allows on-premises hosts to access Google APIs via VPN, but not a direct network connection.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Cloud VPN.
Cloud VPN is a valid way to connect an on-premises network to a VPC in Google Cloud. It uses IPsec (IKEv1 or IKEv2) to create an encrypted tunnel over the public internet between your on-premises VPN gateway and a Cloud VPN gateway in your VPC. This allows secure communication between your on-premises resources and your VPC subnets, making it a standard hybrid connectivity option.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
Cloud VPN.
Dedicated Interconnect.
Why this is correct
Provides direct physical connection from on-premises.
Related concept
Read the scenario before looking for a memorised answer.
Cloud NAT.
Why it's wrong here
Provides outbound internet to instances without external IPs.
VPC Network Peering.
Why it's wrong here
Used for connecting VPCs within Google Cloud.
Private Google Access.
Why it's wrong here
Allows on-premises hosts to access Google APIs via VPN, but not a direct network connection.
Common exam traps
Google Cloud often tests the distinction between services that provide connectivity to a VPC (like VPN and Interconnect) versus services that only enable outbound internet access or internal VPC-to-VPC peering, leading candidates to mistakenly select Cloud NAT or VPC Network Peering.
Detailed technical explanation
Under the hood, Cloud VPN supports both static routes and dynamic routing via BGP (using Cloud Router), allowing automatic route exchange and failover across multiple tunnels. Dedicated Interconnect, on the other hand, provides a direct physical connection between your on-premises network and Google's network, offering higher bandwidth and lower latency than VPN, and supports VLAN attachments (VLANs) for segmentation. A real-world scenario where this matters is a financial institution requiring low-latency, high-throughput connectivity for real-time trading data, where Dedicated Interconnect is preferred over VPN.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Manage and provision cloud infrastructure — study guide chapter
Learn the concepts, then practise the questions
Manage and provision cloud infrastructure practice questions
Targeted practice on this topic area only
All PCA questions
509 questions across all exam domains
Google Professional Cloud Architect study guide
Full concept coverage aligned to exam objectives
PCA practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise PCA questions linked to Design and plan a cloud solution architecture.
Practise PCA questions linked to Manage and provision cloud infrastructure.
Practise PCA questions linked to Design for security and compliance.
Practise PCA questions linked to Analyze and optimize technical and business processes.
Practise PCA questions linked to Manage implementation of cloud architecture.
Practise PCA questions linked to Ensure solution and operations reliability.
Practise PCA questions linked to PCA fundamentals.
Practise PCA questions linked to PCA scenario.
Practise PCA questions linked to PCA troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Manage and provision cloud infrastructure — This question tests Manage and provision cloud infrastructure — Read the scenario before looking for a memorised answer..
The correct answer is: Cloud VPN. — Cloud VPN is a valid way to connect an on-premises network to a VPC in Google Cloud. It uses IPsec (IKEv1 or IKEv2) to create an encrypted tunnel over the public internet between your on-premises VPN gateway and a Cloud VPN gateway in your VPC. This allows secure communication between your on-premises resources and your VPC subnets, making it a standard hybrid connectivity option.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
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 →
Last reviewed: Jun 30, 2026
This PCA 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 PCA 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.