Synthesized answer
The provided passages do not contain information about what questions remain unanswered regarding new media art. The passages describe "New Media Art" by Mark Tribe and Reena Jana as a collection of digital artworks from the 20th and early 21st centuries [Passage 1].
Synthesized from the book passages below. Chat with the book on Feynman for follow-up.
From the book
Title: New Media Art by Mark Tribe, Reena Jana Description: A collection of digital artworks from the 20th century and early 21st century. Categories: Art, Modern Snippet: A collection of digital artworks from the 20th century and early 21st century.