Cloud Digital Leader Fundamental Cloud Concepts Practice Question

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  us-central1

  Why it's wrong here

  us-central1 is hosted in Council Bluffs, Iowa, in the central United States. While it is one of Google Cloud's largest and most feature-rich regions, transatlantic fiber optic cables must be traversed to reach Europe, introducing roughly 70–100 ms of additional latency. This latency is compounded by potential peering and backbone congestion, so although it is closer than Asia or Australia, it still falls short of the sub-50 ms latency achievable with a European region, failing the requirement to reduce latency for European users.

• ✗

  asia-east1

  Why it's wrong here

  asia-east1 is located in Changhua County, Taiwan, which serves the Asia-Pacific region. While it is a low-latency zone for users in Asia, its geographic distance from Europe introduces significant round-trip time (RTT) across continental and submarine cable routes, adding roughly 100–150 ms of latency compared to a regional European zone. For European users, this would degrade application responsiveness and is therefore unsuitable for a latency-reduction goal.

• ✗

  australia-southeast1

  Why it's wrong here

  australia-southeast1 is situated in Sydney, Australia. Although it is a multi-zone region with robust infrastructure, it is even farther from Europe than most Asian regions, with transcontinental links traversing the Indian Ocean and often routing through Southeast Asia or the US. The physical separation results in high network latency (typically 200–300 ms one-way from Europe), making it a poor choice for minimizing latency for European users.

• ✓

  europe-west1

  Why this is correct

  europe-west1 is located in St. Ghislain, Belgium, placing it in close geographic proximity to major European population centers such as London, Paris, and Frankfurt. This region benefits from Google's low-latency European backbone and multiple availability zones, enabling round-trip times in the tens of milliseconds for users across Western Europe. Deploying workloads here minimizes network hops and intercontinental cable crossings, directly addressing the goal of reducing latency for users in Europe.

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