AZ-900 Azure Core Architectural Components 3 — Questions and Answers
Question 1: To protect an application against a single datacenter failure within a region, which feature should you use?
- Availability zones (Correct answer)
- Resource groups
- Management groups
- Subscriptions
Correct answer: Availability zones
Deploying across availability zones protects against the failure of a single datacenter in a region.
Question 2: What is the correct top-to-bottom order of the Azure management hierarchy?
- Management groups, subscriptions, resource groups, resources (Correct answer)
- Resources, resource groups, subscriptions, management groups
- Subscriptions, management groups, resources, resource groups
- Resource groups, resources, subscriptions, management groups
Correct answer: Management groups, subscriptions, resource groups, resources
Governance flows from management groups down to subscriptions, then resource groups, then individual resources.
Question 3: Which is NOT a benefit of Azure regions?
- Eliminating the need for any redundancy (Correct answer)
- Lower latency to nearby users
- Meeting data residency needs
- Wide global coverage
Correct answer: Eliminating the need for any redundancy
Regions reduce latency and support residency, but you still design redundancy with zones or pairs.
Question 4: When you delete a resource group, what happens to the resources inside it?
- All resources in the group are deleted (Correct answer)
- Only the largest resource is deleted
- Resources are moved to a default group
- Nothing happens to the resources
Correct answer: All resources in the group are deleted
Deleting a resource group deletes all resources contained within it.
Question 5: Which scenario best justifies using multiple management groups?
- A large enterprise needing different policies for production and development subscriptions (Correct answer)
- A single developer with one app
- A user wanting faster VM CPUs
- Reducing storage costs in one resource group
Correct answer: A large enterprise needing different policies for production and development subscriptions
Management groups let large organizations apply distinct governance to groups of subscriptions.
Question 6: How many availability zones does an enabled Azure region typically provide?
- At least three (Correct answer)
- Exactly one
- Exactly two
- At least ten
Correct answer: At least three
Regions that support availability zones offer a minimum of three physically separate zones.
Question 7: Which best describes the relationship between a region and a geography?
- A geography contains one or more regions (Correct answer)
- A region contains many geographies
- They are the same thing
- A geography is smaller than a resource group
Correct answer: A geography contains one or more regions
A geography is a discrete market that contains at least one region, often two for residency.
AZ-900 Azure Core Architectural Components 3
To protect an application against a single datacenter failure within a region, which feature should you use?