What is an online recommendation engine?

Which of the following is a way the operating system prevents unknown or unauthorized users from accessing the system?

Which of these is a benefit of using objects in a powerpoint presentation? a. collaborators can create the external files while you create and edit the slide show. b. you can easily change the theme and design of the presentation. c. you can have older data in the source file while having up-to-date data in the presentation. d. collaborators can easily share the presentation.

Jenny wants to create an animated short video to add to her website. which software will she use to create this animated video?