Which of the following descriptions are correct regarding Region and AZ of public cloud infrastructure? (Multiple choice)

Question

Options

• AAZ is divided based on geographical location and network latency, and services within the area
• BRegion allows users to select nearby cloud data centers with lower latency, avoiding the high
• CAZ is a physically isolated resource area. Different AZs have independent wind, fire, water, and
• DRegion can be divided into general region and exclusive region

• A
  27% (6)
• B
  73% (16)

Explanation

Options B, C, and D are correct because they accurately describe the distinct roles of Regions and Availability Zones (AZs) in public cloud infrastructure. A Region is a geographic grouping of cloud resources that lets users choose data centers closer to their end users, reducing latency and avoiding the performance costs of distant hosting (B). Within a Region, AZs are physically separate facilities with independent power, cooling, fire suppression, and network connectivity, meaning a failure in one AZ does not cascade to others (C). Regions are also categorized into general (public) regions and exclusive (dedicated) regions, the latter serving specific government, compliance, or enterprise needs (D).

Option A is wrong because it describes how Regions are defined, not AZs. It is Regions that are divided based on geographical location and network latency considerations, not AZs. AZs exist inside a Region and are distinguished by physical isolation, not by geography or latency in that sense.

Memory tip: Think of a Region as a city and AZs as separate buildings across that city. You choose the city (Region) for proximity to your users; the separate buildings (AZs) protect you from a single point of failure. Regions can also be "public" or "exclusive," like a city having public districts and a restricted government district.

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