When should students practice netiquette in an online course?
when sending texts to friends
when sending e-mails to classmates
when collaborating in library study groups
when participating in online discussion boards
when collaborating as part of a digital team

Sending texts to friends is called students netiquette in an online course

Explanation:

If the student has doubts about the question he or she sends questions text to his or her friends called netiquette online course.

In those days we used called group  studies which are called in the digital world as netiquette in an online course

A student should not send a doubt  text or question to the professor or teacher either by text or   email. Then he or she is not following the rules.

answer; (cfaa); computer fraud and abuse act;