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Question 480
An app must respond to scheduled timers without keeping a VM on all day. The team observes: The program runs only if an operator manually logs into a server. Which planning or configuration error best accounts for this result?
- No event/schedule-triggered managed execution was configured.
- Only layer-four load balancing was used for a layer-seven routing need.
- The subnet IP prefixes were planned with overlapping address ranges.
- The design ignored available cross-region VNet peering capability.
Explanation
Correct Answer
A:No event/schedule-triggered managed execution was configured. That explains the symptom: The program runs only if an operator manually logs into a server. The targeted corrective action is: Configure a timer-triggered function with authorized resource access.
Incorrect Answers
B:The alternate mechanism would more directly produce this other failure: All URLs route to one backend despite distinct application paths. The current incident instead involves: The program runs only if an operator manually logs into a server.
C:That explanation belongs to a different fault pattern: Subnet creation fails because the proposed CIDR blocks overlap. It does not explain why the program runs only if an operator manually logs into a server.
D:This cause is consistent with a different issue: The engineer assumes peering can connect only within one Azure region. It does not account for the reported symptom here: The program runs only if an operator manually logs into a server.
Question 481
An enterprise has many container replicas and needs automated rollouts and service discovery. Which Azure or cloud concept most directly matches the requirement?
- Use Kubernetes orchestration through AKS when those features are needed.
- Choose a VM or supported container host that can run the required runtime.
- Consider Azure Container Apps for eligible managed application containers.
- Select a supported GPU-enabled VM size rather than a generic small VM.
Explanation
Correct Answer
A:Use Kubernetes orchestration through AKS when those features are needed. The governing requirement is: An enterprise has many container replicas and needs automated rollouts and service discovery. This solution specifically supports the outcome that rolling updates replace pods while service discovery remains stable.
Incorrect Answers
B:That concept addresses this separate situation: A developer wants to host a Linux application with a custom runtime not supported by a managed web tier. It does not by itself establish the result required here: Rolling updates replace pods while service discovery remains stable.
C:This option solves a different planning problem: A developer wants a simple containerized web API without managing a Kubernetes cluster. The current acceptance criterion is specific: Rolling updates replace pods while service discovery remains stable.
D:This design is appropriate for a different requirement: A video encoder needs GPU-accelerated processing inside a customer-controlled guest. Here the decisive outcome must instead be: Rolling updates replace pods while service discovery remains stable.
Question 482
An enterprise has many container replicas and needs automated rollouts and service discovery. Which implementation step would best fulfill the stated requirement?
- Select VMSS for guest-managed worker images and App Service for eligible web apps.
- Link the private DNS zone to the appropriate VNet and add records.
- Create Kubernetes deployment and service resources on the AKS cluster.
- Configure an eligible host pool and identity-aware user access.
Explanation
Correct Answer
C:Create Kubernetes deployment and service resources on the AKS cluster. The implementation operationalizes this design choice: Use Kubernetes orchestration through AKS when those features are needed. Acceptance should demonstrate: Rolling updates replace pods while service discovery remains stable.
Incorrect Answers
A:This setup is relevant to another workload: A batch team must distinguish a VM scale set from Azure App Service autoscale. The current configuration must instead achieve: Rolling updates replace pods while service discovery remains stable.
B:That action implements a different requirement: A private VNet workload needs internal name resolution not exposed to public DNS. It does not establish the required result in this case: Rolling updates replace pods while service discovery remains stable.
D:This setup is relevant to another workload: A company wants hosted Windows desktops accessed by employees from different locations. The current configuration must instead achieve: Rolling updates replace pods while service discovery remains stable.
Question 483
An enterprise has many container replicas and needs automated rollouts and service discovery. Which result would best demonstrate successful implementation?
- Planned maintenance does not remove both members at once in the validated model.
- The website runs without customers managing its VM guest OS.
- Public callers reach the app route but cannot reach the admin endpoint.
- Rolling updates replace pods while service discovery remains stable.
Explanation
Correct Answer
D:Rolling updates replace pods while service discovery remains stable. That directly tests the stated requirement: An enterprise has many container replicas and needs automated rollouts and service discovery. It contrasts with the observed failure: Each update requires SSH into each container host and manual replacement.
Incorrect Answers
A:This observation is evidence for a separate scenario: Two critical VMs in one region need separation from common host hardware maintenance faults. It does not test the necessary outcome here: Rolling updates replace pods while service discovery remains stable.
B:That check tests another control: An e-commerce team has a simple website and does not want to patch guest OS hosts. The decisive result for this workload is: Rolling updates replace pods while service discovery remains stable.
C:The test is relevant when a container app should accept HTTP traffic but not expose an internal administrative interface. It cannot establish the specified acceptance result: Rolling updates replace pods while service discovery remains stable.
Question 484
An enterprise has many container replicas and needs automated rollouts and service discovery. The team observes: Each update requires SSH into each container host and manual replacement. What should the team identify as the primary mechanism behind the problem?
- The architecture lacks the Kubernetes control-plane orchestration functions.
- The hybrid VPN gateway connection was not established.
- The private DNS zone was not linked or populated correctly.
- They were not placed on the intended shared VNet.
Explanation
Correct Answer
A:The architecture lacks the Kubernetes control-plane orchestration functions. That explains the symptom: Each update requires SSH into each container host and manual replacement. The targeted corrective action is: Create Kubernetes deployment and service resources on the AKS cluster.
Incorrect Answers
B:The alternate mechanism would more directly produce this other failure: Office traffic reaches only public-facing application endpoints. The current incident instead involves: Each update requires SSH into each container host and manual replacement.
C:That explanation belongs to a different fault pattern: Private names resolve only outside the target VNet or not at all. It does not explain why each update requires SSH into each container host and manual replacement.
D:This cause is consistent with a different issue: Both VMs have public addresses but no defined private network path. It does not account for the reported symptom here: Each update requires SSH into each container host and manual replacement.
Question 485
A video encoder needs GPU-accelerated processing inside a customer-controlled guest. Which design choice best fits the stated business constraint?
- Evaluate an Azure availability set where it meets the workload's resilience needs.
- Keep the VM on private VNet addressing without unnecessary public IP.
- Select a supported GPU-enabled VM size rather than a generic small VM.
- Use Azure ExpressRoute instead of assuming it is an ordinary internet VPN.
Explanation
Correct Answer
C:Select a supported GPU-enabled VM size rather than a generic small VM. The governing requirement is: A video encoder needs GPU-accelerated processing inside a customer-controlled guest. This solution specifically supports the outcome that the workload detects its GPU and completes encoding as designed.
Incorrect Answers
A:This design is appropriate for a different requirement: Two critical VMs in one region need separation from common host hardware maintenance faults. Here the decisive outcome must instead be: The workload detects its GPU and completes encoding as designed.
B:That concept addresses this separate situation: A development team wants its VM to be reachable only from its private corporate VPN. It does not by itself establish the result required here: The workload detects its GPU and completes encoding as designed.
D:This design is appropriate for a different requirement: A manufacturer requires private dedicated connectivity between its WAN provider and Azure. Here the decisive outcome must instead be: The workload detects its GPU and completes encoding as designed.
Question 486
A video encoder needs GPU-accelerated processing inside a customer-controlled guest. Which Azure setup action best follows from this scenario?
- Configure a timer-triggered function with authorized resource access.
- Assign supported subnet address spaces without overlapping prefixes.
- Place healthy backend instances behind the relevant Azure load balancer.
- Choose the appropriate VM SKU and compatible driver stack.
Explanation
Correct Answer
D:Choose the appropriate VM SKU and compatible driver stack. The implementation operationalizes this design choice: Select a supported GPU-enabled VM size rather than a generic small VM. Acceptance should demonstrate: The workload detects its GPU and completes encoding as designed.
Incorrect Answers
A:This setup is relevant to another workload: An app must respond to scheduled timers without keeping a VM on all day. The current configuration must instead achieve: The workload detects its GPU and completes encoding as designed.
B:That action implements a different requirement: A company needs to isolate customer workloads at the network level using multiple subnets. It does not establish the required result in this case: The workload detects its GPU and completes encoding as designed.
C:This change would be appropriate under a different condition: A front-end workload must tolerate updates across multiple VM instances. Here it would not validate: The workload detects its GPU and completes encoding as designed.
Question 487
A video encoder needs GPU-accelerated processing inside a customer-controlled guest. Which verification outcome should the team expect from the right design?
- Network boundaries and permitted inter-subnet flows match the approved design.
- The workload detects its GPU and completes encoding as designed.
- Client requests move to healthy instances when one backend fails.
- Requests to two URL paths reach their respective backend pools.
Explanation
Correct Answer
B:The workload detects its GPU and completes encoding as designed. That directly tests the stated requirement: A video encoder needs GPU-accelerated processing inside a customer-controlled guest. It contrasts with the observed failure: Encoding fails because the provisioned VM lacks GPU hardware.
Incorrect Answers
A:This observation is evidence for a separate scenario: A company needs to isolate customer workloads at the network level using multiple subnets. It does not test the necessary outcome here: The workload detects its GPU and completes encoding as designed.
C:The test is relevant when a front-end workload must tolerate updates across multiple VM instances. It cannot establish the specified acceptance result: The workload detects its GPU and completes encoding as designed.
D:This observation is evidence for a separate scenario: A web application needs HTTP routing based on hostnames and URL paths. It does not test the necessary outcome here: The workload detects its GPU and completes encoding as designed.
Question 488
A video encoder needs GPU-accelerated processing inside a customer-controlled guest. The team observes: Encoding fails because the provisioned VM lacks GPU hardware. Which underlying mistake most directly explains the reported symptom?
- The design ignored a suitable event-driven managed service.
- The public DNS record was absent or misconfigured.
- The size selected did not offer the required accelerator capability.
- The VM was assigned a public IP despite private-only requirements.
Explanation
Correct Answer
C:The size selected did not offer the required accelerator capability. That explains the symptom: Encoding fails because the provisioned VM lacks GPU hardware. The targeted corrective action is: Choose the appropriate VM SKU and compatible driver stack.
Incorrect Answers
A:This cause is consistent with a different issue: A full-time VM waits idle for rare messages. It does not account for the reported symptom here: Encoding fails because the provisioned VM lacks GPU hardware.
B:The alternate mechanism would more directly produce this other failure: The public hostname cannot be resolved from internet clients. The current incident instead involves: Encoding fails because the provisioned VM lacks GPU hardware.
D:This cause is consistent with a different issue: A security review finds an unnecessary internet-reachable address. It does not account for the reported symptom here: Encoding fails because the provisioned VM lacks GPU hardware.
Question 489
A batch team must distinguish a VM scale set from Azure App Service autoscale. What is the most appropriate cloud concept or service for this need?
- Recognize Azure VMs may operate using private addresses only.
- Select a site-to-site VPN rather than granting the private service a public IP.
- Recognize VM Scale Sets manage groups of VMs while App Service manages application hosting.
- Choose Azure App Service for eligible managed web-app hosting.
Explanation
Correct Answer
C:Recognize VM Scale Sets manage groups of VMs while App Service manages application hosting. The governing requirement is: A batch team must distinguish a VM scale set from Azure App Service autoscale. This solution specifically supports the outcome that the chosen service exposes the required host-OS control or abstracts it as specified.
Incorrect Answers
A:This design is appropriate for a different requirement: A service owner uses a VM and assumes a public IP is always required. Here the decisive outcome must instead be: The chosen service exposes the required host-OS control or abstracts it as specified.
B:That concept addresses this separate situation: A branch office needs to connect an isolated internal Azure service across an encrypted internet path. It does not by itself establish the result required here: The chosen service exposes the required host-OS control or abstracts it as specified.
D:This design is appropriate for a different requirement: An e-commerce team has a simple website and does not want to patch guest OS hosts. Here the decisive outcome must instead be: The chosen service exposes the required host-OS control or abstracts it as specified.
Question 490
A batch team must distinguish a VM scale set from Azure App Service autoscale. What should the team configure or perform to implement the correct approach?
- Connect the function to a compatible trigger with appropriate rights.
- Select VMSS for guest-managed worker images and App Service for eligible web apps.
- Apply an NSG rule permitting required HTTPS and restricting management ports.
- Identify whether clients must traverse a public or private network path.
Explanation
Correct Answer
B:Select VMSS for guest-managed worker images and App Service for eligible web apps. The implementation operationalizes this design choice: Recognize VM Scale Sets manage groups of VMs while App Service manages application hosting. Acceptance should demonstrate: The chosen service exposes the required host-OS control or abstracts it as specified.
Incorrect Answers
A:This setup is relevant to another workload: A data collector runs short tasks when messages arrive, and demand varies sharply. The current configuration must instead achieve: The chosen service exposes the required host-OS control or abstracts it as specified.
C:This change would be appropriate under a different condition: A security administrator wants to allow HTTPS but block unsolicited remote management to a VM. Here it would not validate: The chosen service exposes the required host-OS control or abstracts it as specified.
D:This setup is relevant to another workload: A new cloud student asks whether public and private endpoints both mean publicly reachable Azure services. The current configuration must instead achieve: The chosen service exposes the required host-OS control or abstracts it as specified.
Microsoft Azure Fundamentals (AZ-900) Practice Tests