The correct answer is FALSE.
JAXB is a Java technology for binding Java objects to and from XML. It is a way to serialize and deserialize Java objects to and from XML.
However, it is not the only way to send objects across the wire. There are many other ways to do this, such as using JSON, Protocol Buffers, or Thrift.
The choice of which technology to use depends on the specific needs of the application. For example, if the application needs to be able to interoperate with other Java applications, then JAXB may be a good choice. However, if the application needs to be able to interoperate with other non-Java applications, then JSON, Protocol Buffers, or Thrift may be a better choice.
In conclusion, JAXB is not the only way to send objects across the wire. There are many other ways to do this, and the choice of which technology to use depends on the specific needs of the application.