In volleyball, which of the following are considered types of service? I. Jump serve II. Floating serve

Explanation

Both I and II. In volleyball, both the Jump serve and the Floating serve are fundamental serving techniques used to challenge the opposing team. The Jump serve involves the player tossing the ball high and jumping to hit it with powerful topspin, while the Floating serve (or Float serve) is hit without spin, causing the ball to move unpredictably through the air. These methods are essential strategies for gaining an advantage during the start of a rally.