Adaptive Server, when it is started, determines the set of security mechanisms it supports. See “Determining supported security services and mechanisms”. From the list of supported security mechanisms, Adaptive Server must choose the one to be used for a particular client.
If the client specifies a security mechanism (for example with the -Z option of isql), Adaptive Server uses that security mechanism. Otherwise, it uses the first security mechanism listed in the libtcl.cfg file.
