Cloud Digital Leader Why Cloud Technology Can Transform Business Practice Question
An organisation needs to securely connect its on-premises data centre to Google Cloud with high bandwidth and low latency for hybrid cloud workloads. They want a dedicated, private connection that does not traverse the public internet. Which solution 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
✓
Cloud Interconnect
Cloud Interconnect provides dedicated, private connections between on-prem and Google Cloud with high bandwidth and low latency. VPN uses the public internet, Cloud CDN is for content delivery, and Cloud NAT is for outbound internet access.
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 NAT
Why it's wrong here
Cloud NAT translates egress addresses for outbound traffic from private subnets; it cannot carry on-premises traffic into a VPC. It is tempting as a private-connectivity-sounding service, but it only provides outbound internet access, not a dedicated link.
- ✓
Cloud Interconnect
Why this is correct
Cloud Interconnect provides a dedicated private circuit between the on-premises data centre and Google Cloud, bypassing the public internet entirely. This satisfies the high-bandwidth, low-latency and private-connection constraints, unlike VPN, which tunnels over the public internet.
- ✗
Cloud CDN
Why it's wrong here
Cloud CDN caches and serves HTTP content from edge locations; it provides no private layer-3 path between an on-premises data centre and a VPC. It is tempting for accelerating web delivery, but dedicated private connectivity requires Cloud Interconnect's VLAN attachment.
- ✗
Cloud VPN
Why it's wrong here
Cloud VPN tunnels traffic over the public internet, so it fails the requirement that traffic never traverse it, and its bandwidth and latency cannot match a dedicated circuit. It suits lower-cost encrypted connectivity, but the stem demands a private dedicated connection.
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Key term
Cloud Interconnect
Cloud Interconnect is a service that provides a dedicated, private, high-bandwidth connection between your on-premises network and a cloud provider's network, bypassing the public internet for improved reliability, security, and performance.
Key term
VPN
A VPN creates an encrypted tunnel over a public network to securely connect remote users or sites to a private network.
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JA
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.