Microsoft Azure Fundamentals (AZ-900) Exam Prep: Azure core architecture: regions, zones and resource hierarchy

1. Pytanie 1 z 15

   What is an Azure region?

   • AA container that holds related resources for one app
   • BAn area with one or more nearby, linked datacentres
   • CA group of subscriptions that share one invoice
   • DA single rack of servers inside one datacentre
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   Odpowiedź: B. An area with one or more nearby, linked datacentres

   A region is a geographical area with at least one, and often several, datacentres that are close together and linked by a low-latency network.

2. Pytanie 2 z 15

   What is an availability zone?

   • AAn isolated instance of Azure for government agencies
   • BA pair of regions at least 300 miles apart
   • CA separate datacentre in a region with its own power and cooling
   • DA folder in the Azure portal that organizes resources by team and project
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   Odpowiedź: C. A separate datacentre in a region with its own power and cooling

   Availability zones are physically separate datacentres within a region, each with independent power, cooling and networking.

3. Pytanie 3 z 15

   At minimum, how many availability zones does a region that supports zones have?

   • AOne
   • BTwo
   • CThree
   • DSix
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   Odpowiedź: C. Three

   Every availability zone-enabled region has a minimum of three separate availability zones.

4. Pytanie 4 z 15

   Which order of the Azure resource hierarchy goes from the largest scope to the smallest?

   • AManagement groups, subscriptions, resource groups, resources
   • BResources, resource groups, management groups, subscriptions
   • CResource groups, subscriptions, management groups, resources
   • DSubscriptions, management groups, resources, resource groups
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   Odpowiedź: A. Management groups, subscriptions, resource groups, resources

   Management groups sit above subscriptions, subscriptions contain resource groups, and resource groups contain resources.

5. Pytanie 5 z 15

   How many resource groups can one resource belong to at a time?

   • AExactly one
   • BUp to two
   • CAs many as you need
   • DUp to six
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   Odpowiedź: A. Exactly one

   Every resource must belong to exactly one resource group. Some resources can be moved, but a resource is in only one group at a time.

6. Pytanie 6 z 15

   You delete a resource group. What happens to the resources inside it?

   • AThey are deleted too
   • BThey stay in place but lose their tags
   • CThey move up to the subscription level
   • DThey move to a default resource group
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   Odpowiedź: A. They are deleted too

   Deleting a resource group deletes everything in it, so check its contents first.

7. Pytanie 7 z 15

   Which statement about resource groups is true?

   • AA resource group can contain whole subscriptions
   • BOne resource can belong to several resource groups
   • CA resource group can't be placed inside another resource group
   • DA resource group can be renamed whenever you like
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   Odpowiedź: C. A resource group can't be placed inside another resource group

   Resource groups can't be nested, and they can't be renamed after they are created.

8. Pytanie 8 z 15

   A company wants separate invoices and separate access rules for its production and development work. What should it create?

   • AA separate Azure account for every employee
   • BSeparate subscriptions
   • CSeparate tags on every resource
   • DSeparate availability zones for each team
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   Odpowiedź: B. Separate subscriptions

   A subscription is both a billing boundary, with its own invoice, and an access control boundary.

9. Pytanie 9 z 15

   Which of these Azure services doesn't ask you to choose a region?

   • AAzure Virtual Machines
   • BAzure Virtual Desktop
   • CAzure Kubernetes Service
   • DAzure DNS
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   Odpowiedź: D. Azure DNS

   Some global services, such as Microsoft Entra ID, Azure Traffic Manager and Azure DNS, don't require you to select a region.

10. Pytanie 10 z 15

    How far apart are most Azure region pairs?

    • AAt least 3,000 miles (about 4,800 km)
    • BOn two different continents
    • CAt least 300 miles (about 480 km)
    • DAt least 30 miles (about 48 km)
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    Odpowiedź: C. At least 300 miles (about 480 km)

    Most regions are paired with another region in the same geography that is at least 300 miles away.

11. Pytanie 11 z 15

    How are planned Azure updates rolled out to a region pair?

    • AOnly to the region with fewer customers
    • BNever, because paired regions are not updated
    • CTo one region of the pair at a time
    • DTo both regions at exactly the same time
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    Odpowiedź: C. To one region of the pair at a time

    Planned updates roll out to paired regions one region at a time to reduce downtime and the risk of an outage.

12. Pytanie 12 z 15

    You deploy a virtual machine into one specific availability zone that you choose. What kind of service is this?

    • AA zone-redundant service
    • BA non-regional service
    • CA zonal service
    • DA sovereign service
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    Odpowiedź: C. A zonal service

    Zonal services are pinned to one zone, such as VMs, managed disks and IP addresses. Zone-redundant services are replicated across zones by Azure.

13. Pytanie 13 z 15

    Which statement about the Azure sovereign regions in China is correct?

    • AThey are part of the main Azure instance, with no isolation at all
    • BThey are run by screened US government personnel
    • CThey are offered with 21Vianet, not run directly by Microsoft
    • DEach one is paired with a region in Europe
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    Odpowiedź: C. They are offered with 21Vianet, not run directly by Microsoft

    China East, China North and other China regions are available through a partnership between Microsoft and 21Vianet, and Microsoft doesn't directly maintain those datacentres.

14. Pytanie 14 z 15

    Not counting the root level or the subscription level, how many levels deep can management groups be nested?

    • ATwo
    • BSix
    • CThree
    • DTen
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    Odpowiedź: B. Six

    Management groups can be nested up to six levels deep, not counting the root level or the subscription level.

15. Pytanie 15 z 15

    An administrator applies a policy to a management group that limits virtual machines to one location. What happens?

    • AEach subscription owner can choose to override it
    • BOnly management groups created later get the policy
    • CEvery subscription under that group inherits the policy
    • DIt applies only to VMs created in the Azure portal
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    Odpowiedź: C. Every subscription under that group inherits the policy

    Settings applied to a management group flow down to every subscription under it, and a subscription owner can't override an inherited policy.

Klawiatura: 1–4, aby odpowiedzieć, Enter – następne pytanie.

Prawdziwy egzamin: 700 or greater (scale of 1 to 1,000)