Which of the following descriptions about Region and AZ is correct?

Question

Options

• AThere can only be one AZ in a Region
• BOne is a collection of one or more physical data centers, with independent wind, fire, hydropower,
• CDedicated Region refers to the Region that provides general cloud services to public tenants
• DGeneral Region refers to a dedicated Region that only undertakes the same type of business or

• A
  2% (1)
• B
  85% (47)
• C
  5% (3)
• D
  7% (4)

Explanation

Option B correctly describes an Availability Zone (AZ): it is a grouping of one or more physical data centers equipped with independent power, cooling, and network infrastructure (the "wind, fire, hydropower" phrasing refers to independent utility supplies), ensuring that failures in one AZ do not cascade to others within the same Region. Option A is wrong because a Region must contain multiple AZs - typically two or more - so that customers can build fault-tolerant, highly available architectures across isolated locations. Option C has the definition backwards: a Dedicated Region is reserved for specific tenants or regulated workloads, not for general public cloud services; it is the General Region that serves public tenants. Option D is equally reversed: a General Region is the standard, publicly accessible cloud environment, not a restricted, single-purpose one - that description belongs to a Dedicated Region.

Memory tip: Pair the words with their opposites. "General" means open to all (public), while "Dedicated" means closed to a specific group. For AZs, remember that a Region is a city and each AZ is an independent building in that city - same city, separate power and plumbing.

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