Which statement(s) is/are true with respect to SOAP 1.2?

The following statement(s) is/are true with respect to SOAP:

A. SOAPAction HTTP header is optional in SOAP 1.2.

B. SOAP 1.2 disallows partially transmitted and sparse arrays.

C. SOAP 1.2 adds a new standard header for reporting additional information in Must Understand faults.

SOAP 1.2 is a lightweight and XML (Extensible Markup Language) based protocol that is used to exchange information within the decentralized networks. It basically consists of four parts: an envelope, a set of encoding rules, a convention, and a binding convention.

SOAP 1.2 is a protocol that allows information to be exchanged in a decentralized system. Thousands of messages are possible to exchange that is also independent of any programs. Users can rely on this as this is secure and easy to construct one.

A SOAPAction header is optional in this SOAP version so users can or do not need to make a header for their SOAP message. The use of keywords MUST, REQUIRED or SHALL mean that is an absolute requirement for a definition. The keywords MUST NOT or SHALL NOT prohibit a definition. One should also a format for they can successfully send a message.