This summary is not the rule. The rule text controls.
When someone challenges a juror and gives reasons why that juror should not serve, the other side can question whether those reasons are actually good enough. This is called excepting to the challenge. The side doing this doesn't need to file any paperwork. They just need to state their objection out loud in court, and the clerk writes it down in the court's official notes.
Once that happens, the judge has to decide if the challenge holds up. Here's the key part: the judge assumes the facts stated in the challenge are true. So the judge isn't deciding whether the facts actually happened. Instead, the judge is only deciding whether those facts, if true, are enough to legally justify removing that juror.
This process helps keep jury selection fair and organized. It gives both sides a chance to argue about whether a juror should be dismissed, while making sure the judge focuses only on the legal question at hand, not on trying to verify the facts themselves at this stage.