Suggested Answer:D🗳️
Load balancers. These are used to distribute traffic to virtual machines in the application-tier subnet. For high availability, use the built-in SAP Web Dispatcher, Azure Load Balancer, or network appliances, depending on the traffic type (such as HTTP or SAPGUI) or the required network services, such as Secure Sockets Layer (SSL) termination. Reference: https://docs.microsoft.com/en-us/azure/architecture/reference-architectures/sap/sap-netweaver
Ans - D.
The Web Dispatcher component is used as a load balancer for SAP traffic among the SAP application servers. To achieve high availability of the SAP Web Dispatcher, Azure Load Balancer implements either the failover cluster or the parallel Web Dispatcher setup.
it is a bad practice to use the same system to check a work of itself, so sawd no way must to be used for check lb works, so it is not d.
most correct is solman imho
Ans:C. The Web Dispatcher is a load balancing component for HTTP/HTTPS requests. It can't be used for validate the load distribution to the application servers on Azure. For validation, you need the Azure Monitor.
Answer: D - SAP Web Dispatcher
Can monitor distribution in the Web Administration Interface http(s)://host:admin_port/sap/admin , is under Dispatching Mode Area Menu
https://help.sap.com/saphelp_SNC700_ehp01/helpdata/en/48/7f579f7df935e1e10000000a42189c/frameset.htm
Azure Monitor or Solman both are correct . However the former can only check at OS level load while Solman can check inside the SAP application eg. dialog response time . So I will go with Solman
going into very details...look back the question once again:
You need to validate the load distribution to the application servers.
What should you use?
I will go with Solution Manager for validation ...WDS does the load distribution but SolMan captures the real time load into different app servers. Azure monitor does not really check load across apps.
Azure Monitor for SAP Solutions is an Azure-native monitoring product for customers, running their SAP landscapes on Azure. The product works with both SAP on Azure Virtual Machines and SAP on Azure Large Instances. With Azure Monitor for SAP Solutions, customers can collect telemetry data from Azure infrastructure and databases in one central location and visually correlate telemetry data for faster troubleshooting.
Azure Monitor for SAP Solutions is offered through Azure Marketplace. It provides a simple, intuitive setup experience and takes only a few clicks to deploy the resource for Azure Monitor for SAP Solutions
The question is asking to "validate" the solution... hence Azure Monitor. With Azure Monitor you can generate key metrics to validate your architecture.
The answer should be A. SAPControl.
Because the Web Dispatcher is a load balancing component, it cannot be used for validation the load distribution to the AS.
The SAPControl can be used for monitoring whether the application servers are working normally. please refer to:
https://m1bc.home.blog/2019/09/09/getsysteminstancelist-duplicate-entries/
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