How is an IALA Isolated Danger Mark (Marca de Peligro Aislado) identified by day and night, and what navigation guidance does it provide?

1. Day: Black with one or more broad red horizontal bands, topmark of two black spheres; Night: White light flashing group of two flashes (Fl(2)); indicates navigable water all around the hazard
2. Day: Red and white vertical stripes; Night: Isophase white light; indicates the center of a traffic lane
3. Day: Solid yellow with an 'X' topmark; Night: Yellow flashing light; marks a cable area
4. Day: Green with a single green triangle; Night: Quick green light; marks a wreck on the starboard side