Microsoft AZ-304 Exam Actual Questions (P. 38)

You plan to run an image rendering workload in Azure. The workload uses parallel compute processes.

What is the best service to use to run the workload? More than one answer choice may achieve the goal. Select the BEST answer.

Correct Answer: D
Azure Batch works well with intrinsically parallel (also known as "embarrassingly parallel") workloads. Intrinsically parallel workloads are those where the applications can run independently, and each instance completes part of the work. When the applications are executing, they might access some common data, but they do not communicate with other instances of the application. Intrinsically parallel workloads can therefore run at a large scale, determined by the amount of compute resources available to run applications simultaneously.
Reference:
https://docs.microsoft.com/en-us/azure/batch/batch-technical-overview

You are designing a microservices architecture that will use Azure Kubernetes Service (AKS) to host pods that run containers. Each pod deployment will host a separate API. Each API will be implemented as a separate service.
You need to recommend a solution to make the APIs available to external users from Azure API Management. The solution must meet the following requirements:
✑ Control access to the APIs by using mutual TLS authentication between API Management and the AKS-based APIs.
✑ Provide access to the APIs by using a single IP address.
What should you recommend to provide access to the APIs?

Correct Answer: C
An ingress controller is a piece of software that provides reverse proxy, configurable traffic routing, and TLS termination for Kubernetes services. Kubernetes ingress resources are used to configure the ingress rules and routes for individual Kubernetes services. Using an ingress controller and ingress rules, a single IP address can be used to route traffic to multiple services in a Kubernetes cluster.
Reference:
https://docs.microsoft.com/en-us/azure/aks/ingress-basic

HOTSPOT -
You are designing a cost-optimized solution that uses Azure Batch to run two types of jobs on Linux nodes. The first job type will consist of short-running tasks for a development environment. The second job type will consist of long-running Message Passing Interface (MPI) applications for a production environment that requires timely job completion.
You need to recommend the pool type and node type for each job type. The solution must minimize compute charges and leverage Azure Hybrid Benefit whenever possible.
What should you recommend? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:

Correct Answer:
Box 1: User subscription and low-priority virtual machines
Azure Batch offers low-priority virtual machines (VMs) to reduce the cost of Batch workloads. Low-priority VMs make new types of Batch workloads possible by enabling a large amount of compute power to be used for a very low cost.
Some examples of batch processing use cases well suited to use low-priority VMs are:
✑ Development and testing: In particular, if large-scale solutions are being developed, significant savings can be realized. All types of testing can benefit, but large-scale load testing and regression testing are great uses.
✑ Supplementing on-demand capacity.
✑ Flexible job execution time.
Box 2: Batch service and dedicate virtual machines
Reference:
https://docs.microsoft.com/en-us/azure/batch/batch-low-pri-vms

Your company has an on-premises Windows HPC cluster. The cluster runs a parallel, compute-intensive workload that performs financial risk modeling.
You plan to migrate the workload to Azure Batch.
You need to design a solution that will support the workload. The solution must meet the following requirements:
✑ Support the large-scale parallel execution of Azure Batch jobs.
✑ Minimize cost.
What should you include in the solution?

Correct Answer: B
Reference:
https://docs.microsoft.com/en-us/azure/batch/batch-technical-overview