diff --git a/faq.md b/faq.md
index 146984b..946c221 100644
--- a/faq.md
+++ b/faq.md
@@ -229,12 +229,13 @@
 been deserialized by protoc generated Java code.  You would need to marshal
 the data from one language to the other.
 
-Arrow avoids this but it comes at the cost of increased space.  Protobuf can
-be a better choice for serializing certain kinds of data on the wire (like
-individual records or sparse data with many optional fields).  Just like
-Parquet this means that Arrow and Protobuf complement each other well.  For
-example, Arrow Flight uses gRPC and Protobuf to transmit data which is then
-deserialized into Arrow format for processing.
+Arrow avoids this but it comes at the cost of increased space.
+Protobuf can be a better choice for serializing certain kinds of data
+on the wire (like individual records or sparse data with many optional
+fields).  Just like Parquet this means that Arrow and Protobuf
+complement each other well.  For example, Arrow Flight uses gRPC and
+Protobuf to serialize its commands, while data is serialized using the
+binary Arrow IPC protocol.
 
 #### **How does Arrow relate to Flatbuffers?**