If a defendant fails to answer a case in federal court is default automatic?

Yes, in federal court, if a defendant fails to respond to a complaint within the specified time frame, a default judgment can be entered against them. However, the plaintiff must formally request a default from the court, and the court has discretion to deny the request under certain circumstances. Once a default is entered, the plaintiff may then seek a default judgment, which can lead to a ruling in their favor without the defendant's participation.