A global retail company is running its SAP landscape on AWS. Recently, the company made changes to its SAP Web Dispatcher architecture. The company added an additional SAP Web Dispatcher for high availability with an Application Load Balancer (ALB) to balance the load between the two SAP Web Dispatchers. When users try to access SAP through the ALB, the system is reachable. However, the SAP backend system is showing an error message. An investigation reveals that the issue is related to SAP session handling and distribution of requests. The company confirmed that the system was working as expected with one SAP Web Dispatcher. The company replicated the configuration of that SAP Web Dispatcher to the new SAP Web Dispatcher. How can the company resolve the error?

Topic #: - All AWS Certified SAP on AWS - Specialty PAS-C01 Questions

A. Maintain persistence by using session cookies. Enable session stickiness (session affinity) on the SAP Web Dispatchers by setting the wdisp/HTTP/esid_support parameter to True.
B. Maintain persistence by using session cookies. Enable session stickiness (session affinity) on the ALB.
C. Turn on host-based routing on the ALB to route traffic between the SAP Web Dispatchers.
D. Turn on URL-based routing on the ALB to route traffic to the application based on URL.

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