Microsoft Updated DP-420 Exam Questions and Answers by phoenix

The partition key is what will determine how data is routed in the various partitions by Cosmos DB and needs to make sense in the context of your specific scenario. The IoT Device ID is generally the " natural " partition key for IoT applications.

Scenario: The iotdb database will contain two containers named con-iot1 and con-iot2.

Ensure that Azure Cosmos DB costs for IoT-related processing are predictable.

Box 1 = Range

 Azure Cosmos DB supports three types of indexes: range, spatial and composite. For the query you provided, which is an equality query on a single property, the best type of index to use is  range .  Range index is based on an ordered tree-like structure and it is used for equality queries, range queries and checking for the presence of a property 1 .  Range index also supports any string or number 2 .

Box 2 = Composite

Azure Cosmos DB supports three types of indexes: range, spatial and composite. For the query you provided, which is an order by query on two properties, the best type of index to use is  composite .  Composite ind ex is used for optimizing order by queries on multiple prop erties 1 .  Composite index allows you to specify a list of property paths and sort orders that are used for ordering items 2 .

Box 3 = spatial

Azure Cosmos DB supports three types of indexes: range, spatial and composite. For the query you provided, which is a spatial query on a point property, the best type of index to use is  spatial .  Spatial index is used for querying items based on their location or proximity to a given point 1 .  Spatial index supports point, polygon and linestring data types 2 .

The disableLocalAuth property is a boolean flag that indicates whether local authentication methods such as primary/secondary keys are disabled for the Azure Cosmos DB account.  Setting this property to true improves security by ensuring that Azur e Cosmos DB accounts exclusively require Azure Active Directory identities for authentication 1 .