In a many-to-many relationship, a(n) ________ table is used to join the two outer tables with two one-to-many relationships

A snapshot of any window open on your computer is a ________

A) photo shot B) snap shot C) photo snip D) screen shot

QPSK uses four signal states that are ____ degrees out of phase to carry four signal values.

A. 30 B. 60 C. 90 D. 180