HOTSPOT
Which Web Services Security (WS-Security) specification negotiates how security tokens will be
issued, renewed and validated? Click on the correct specification in the image below.

Answer: See the explanation

Explanation:
WS-Trust

The protocol used for issuing security tokens is based on WS-Trust. WS-Trust is a Web service
specification that builds on WS-Security. It describes a protocol used for issuance, exchange, and
validation of security tokens. WS-Trust provides a solution for interoperability by defining a protocol
for issuing and exchanging security tokens, based on token format, namespace, or trust boundaries.
https://msdn.microsoft.com/en-us/library/ff650503.aspx