This PCA practice question tests your understanding of design and plan a cloud solution architecture. 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 company is migrating to Google Cloud and needs to connect their on-premises network to a VPC. They require high bandwidth and a reliable connection with a Service Level Agreement (SLA). Which solution should they choose?
Cloud VPN with dynamic routing
Why wrong: VPN does not have a bandwidth SLA.
Dedicated Interconnect
Dedicated Interconnect offers high bandwidth and an SLA.
Partner Interconnect via a service provider
Why wrong: Partner Interconnect may have limited bandwidth and SLA depends on provider.
Direct Peering
Why wrong: Direct Peering is not for private connectivity to VPC.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Dedicated Interconnect
Dedicated Interconnect provides a direct, private physical connection between your on-premises network and Google's network, offering high bandwidth (10 or 100 Gbps per link) and a 99.99% uptime SLA when configured with redundant links. This meets the requirements for high bandwidth and a reliable, SLA-backed connection better than any other 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 with dynamic routing
Why it's wrong here
VPN does not have a bandwidth SLA.
Dedicated Interconnect
Why this is correct
Dedicated Interconnect offers high bandwidth and an SLA.
Related concept
Read the scenario before looking for a memorised answer.
Partner Interconnect via a service provider
Why it's wrong here
Partner Interconnect may have limited bandwidth and SLA depends on provider.
Direct Peering
Why it's wrong here
Direct Peering is not for private connectivity to VPC.
Common exam traps
The trap here is that candidates often confuse Partner Interconnect with Dedicated Interconnect, assuming any 'Interconnect' offers an SLA, but only Dedicated Interconnect provides a direct physical link with a 99.99% SLA, while Partner Interconnect's SLA depends on the partner's network and is typically lower.
Detailed technical explanation
Dedicated Interconnect uses IEEE 802.1Q VLAN tagging to create multiple virtual circuits (VLAN attachments) over a single physical link, each connecting to a different VPC or region. The SLA of 99.99% is achieved by requiring two redundant links (each with a minimum of 10 Gbps) in different edge availability domains, ensuring failover without relying on BGP multipath. In practice, this is critical for latency-sensitive workloads like real-time data replication or financial trading, where even milliseconds of jitter from VPN or shared provider links can cause issues.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
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FAQ
Design and plan a cloud solution architecture — This question tests Design and plan a cloud solution architecture — Read the scenario before looking for a memorised answer..
The correct answer is: Dedicated Interconnect — Dedicated Interconnect provides a direct, private physical connection between your on-premises network and Google's network, offering high bandwidth (10 or 100 Gbps per link) and a 99.99% uptime SLA when configured with redundant links. This meets the requirements for high bandwidth and a reliable, SLA-backed connection better than any other 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.
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Last reviewed: Jun 25, 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.
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