Cloud Digital Leader Why Cloud Technology Can Transform Business Practice Question
A company wants to reduce its on-premises data center footprint by moving workloads to Google Cloud. They need to maintain low-latency connectivity between their remaining on-premises equipment and their Google Cloud VPC. Which Google Cloud service should they use?
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
✓
Dedicated Interconnect
Dedicated Interconnect provides direct, private, high-bandwidth connections between on-premises and Google Cloud, meeting low-latency requirements. Partner Interconnect uses service providers with lower bandwidth. Cloud VPN is internet-based and slower. Direct Peering lacks SLAs.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Cloud VPN
Why it's wrong here
Cloud VPN creates an encrypted IPSec tunnel over the public internet, so traffic traverses untrusted, congested paths with variable latency. Its bandwidth is limited to tunnel capacity and it has no SLA for latency or uptime, making it unsuitable for reducing a data center footprint with consistent low-latency requirements. It is a basic option for temporary or backup connectivity, not for reliable production workloads.
- ✓
Dedicated Interconnect
Why this is correct
Dedicated Interconnect provides a direct, private physical connection between your on-premises network and Google's network, with no traffic crossing the public internet. It offers low, consistent latency, high throughput, and a 99.99% uptime SLA, making it ideal for migrating workloads and reducing data center footprint while preserving performance. This direct connection meets the requirement of reliable, low-latency access to Google Cloud resources.
- ✗
Partner Interconnect
Why it's wrong here
Partner Interconnect relies on a third-party service provider to connect your on-premises network to Google Cloud, and the underlying network path is not fully under Google's control. While it provides a private connection with an SLA, latency and reliability depend on the partner's infrastructure and may not meet strict low-latency requirements. It is best suited for smaller bandwidth needs or locations where Dedicated Interconnect is unavailable, not for primary workload migration.
- ✗
Direct Peering
Why it's wrong here
Direct Peering is not a Google Cloud service and does not come with Google Cloud SLAs; it simply establishes a BGP session at a network exchange point. It uses the public internet backbone, so latency and availability are not guaranteed, and Google may not offer the same level of support. This option is unsuitable for enterprise-scale, latency-sensitive connectivity required to replace an on-premises data center.
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Cloud Digital Transformation
Key term
Data
Data is raw, unprocessed information, like numbers, words, or measurements, that can be stored, processed, and analyzed by computers.
Key term
Service
A service is a software component or system that performs a specific function and is available to be used by other programs or users over a network.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This GCDL 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 GCDL exam.