Recertification Competency Queries

Hi

I had some queries about recertification competencies:

  1. understand role of view logging: i could not find any information on this. Is this a typo where actually they meant: view locking?

  2. Connect to external applications/files : i guess they are talking about DCR??

  3. Establish applications for mobile users: i guess this is again related to new hide-when option?

Thanks in advance