In the traditional game of six players vs. six players, a rally begins when one of the teams sends the ball over the net with a serve from their endline into the opponent's court and the opponent subsequently sends it back over the net on the first, second or third contact.
A team is allowed to contact the ball a total of three timesin their attempt to return the ball to the opponent's court during the rally.
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Rules of Volleyball: When can a team score a point?: When the ball they attack hits the floor inside the court of the opposing Team B during a rally.....find out more rules on Improve Your Volleyball.com
If a player "holds", "lifts" or "carries" the ball resulting in the ball remaining in contact with the player's body for too long or resulting in the ball coming to a complete stop
If a player touches the net with any part of the body or clothing (except her hair) while making a play on the ball
If the players on the team receiving serve don't touch the ball before it lands in their half of the court
If a backrow player jumps and spikes the ball while it is completely above the top of the net, unless he or she jumped from behind the attack line (the player is allowed to land in front of the attack line)
If a backrow player tries to block an opposing team's attack by reaching above the top of the net