Exam 350-801 topic 1 question 334 discussion

It is A

Ad hoc conference calls can be dropped when the originator hangs up. This is achieved by setting the Drop Ad Hoc Conference service parameter to When Conference Controller Leaves under Clusterwide Parameters > Feature > Conference. This ensures that the other parties (such as external users) cannot initiate a call to another external number.

It's A https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/10_5_2/ccmfeat/CUCM_BK_C3A84B33_00_cucm-feature-configuration-guide_1052/CUCM_BK_C3A84B33_00_cucm-feature-configuration-guide_chapter_010000.html

The correct answer is C. The parameter that needs to be adjusted is Restrict Ad Hoc Conference. Restrict Ad Hoc Conference is a parameter in Cisco Unified Communications Manager that allows administrators to restrict users from creating ad hoc conferences. When this parameter is set to "On," users are not able to create ad hoc conferences. This can help prevent situations like the one described in the question, where an external user is added to a conference call and stays on after the host leaves, potentially causing unauthorized charges. Drop Ad Hoc Conference is a related parameter that determines what happens when an ad hoc conference is dropped by the host or when all participants leave the conference. Limit Ad Hoc Conference is a parameter that determines the maximum number of participants that can join an ad hoc conference. Monitor Ad Hoc Conference is a parameter that determines whether or not ad hoc conferences are monitored for quality of service.