Contributor levels in the community and benefits

When you receive an answer from someone in the Community, how do you know you can trust their answer? And as an active participant in the Community, how do you get to be a Master-level contributor?
Every question that you answer or a new topic that you open is counted toward achieving a “level.” There are 3 different levels that community contributors can achieve; Newbie, Advance, and Master. You can identify the level a contributor has achieved by the icon that is shown next to the author name in the message pane;