What key Android Ice Cream Sandwich developer feature is described by the following? "Using the camera, compatible devices can determine the positioning of the user’s eyes, nose and mouth. The camera also can track the user’s eye movement, allowing you to create apps that change perspective, based on where the user is looking."

If you have a reference that is very long and would require a lot of space if entered as a footnote at the bottom of the page, it is best to reference in a(n) ________

Fill in the blank(s) with correct word

In which scenarios would an HSRP router become active while also detecting a duplicate IP address?

A) HSRP version mismatch B) ACL blocking HSRP packets C) Routers configured with different virtual IPs D) HSRP group number mismatch