Final answer:
The duration of revocation for a junior permit or license after being convicted of a serious violation or committing multiple violations can differ based on local laws, but often it may be for a period of 60 days.
Step-by-step explanation:
If you are a convicted of a serious violation (3 points or more) or commit 2 other violations within the first 6 months after regaining your license or privileges following a suspension or revocation, the length of revocation of your junior permit, license, or privileges depends on the specific laws of your state or country. Generally speaking, for many jurisdictions in the United States, a junior driver's license can be revoked for a period of 60 days for such offenses. It is vital to check the specific vehicle and traffic laws that apply in your location for the precise duration of revocation, as penalties can vary significantly between different regions.