DOCSP-43820 Add indexes FAQ entry (#48)

Author: jordan-smith721

source/faq.txt

@@ -48,4 +48,30 @@ change tracking, entity-based LINQ operations, and modeling familiar to
 - Intelligent object tracking
 - Entity-based LINQ operations
 - Entity Framework modeling and mapping with the fluent API
-- Automatic database updates through change tracking
+- Automatic database updates through change tracking
+
+How Can I Manage Indexes with the {+provider-short+}?
+-----------------------------------------------------
+
+You can create indexes with the {+provider-short+} by calling the ``HasIndex()``
+method in the ``OnModelCreating()`` method of your ``DbContext`` class. To learn
+more about how to create indexes with the {+provider-short+}, see the
+:ref:`Indexes <entity-framework-indexes>` guide.
+
+Because the {+provider-short+} is built on top of the {+csharp-driver-short+},
+you can also manage indexes in your application by using the {+csharp-driver-short+}
+directly. To use driver methods in your {+provider-short+}
+application, call them on the ``MongoClient`` used to set up your
+``DbContext``.
+
+The following example creates indexes on the ``movies`` collection by using
+{+csharp-driver-short+} methods:
+
+.. literalinclude:: /includes/code-examples/faq.cs
+   :language: csharp
+   :start-after: start-create-index
+   :end-before: end-create-index
+
+To learn more about creating indexes by using the driver, see the
+`Indexes guide <{+driver-docs-root+}/fundamentals/indexes/>`__ in the
+{+csharp-driver-long+} documentation.

source/includes/code-examples/faq.cs

@@ -0,0 +1,16 @@
+// start-create-index
+using MongoDB.Driver;
+
+var client = new MongoClient("<connection string>");
+var database = client.GetDatabase("sample_mflix");
+await CreateIndexesAsync(database);
+
+async Task CreateIndexesAsync(IMongoDatabase database)
+{
+    var moviesIndex = new CreateIndexModel<Movie>(Builders<Movie>.IndexKeys
+                                .Ascending(x => x.Title)
+                                .Ascending(x => x.Genres));
+    await database.GetCollection<Movie>("movies")
+          .Indexes.CreateOneAsync(moviesIndex);
+}
+// end-create-index