Exam DP-420 topic 2 question 6 discussion

HOTSPOT -
You are developing an application that will connect to an Azure Cosmos DB Core (SQL) API account. The account has a single read-write region and one additional read region. The regions are configured for automatic failover.
The account has the following connection strings. (Line numbers are included for reference only.)

For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Hot Area:

Suggested Answer:
Box 1: No -
The same connection string can still be used.
Azure Cosmos DB Core read write region connection strings
Azure Cosmos DB "primary write region" failover "connection string"

Box 2: No -
The AccountEndpoint for both are the same.

Box 3: Yes -
The ConnectionPolicy.PreferredLocations property gets and sets the preferred locations (regions) for geo-replicated database accounts in the Azure Cosmos DB service. For example, "East US" as the preferred location.
When EnableEndpointDiscovery is true and the value of this property is non-empty, the SDK uses the locations in the collection in the order they are specified to perform operations, otherwise if the value of this property is not specified, the SDK uses the write region as the preferred location for all operations.
Reference:
https://docs.microsoft.com/en-us/dotnet/api/microsoft.azure.documents.client.connectionpolicy.preferredlocations