Support for Multiple Iterations:?

Short answer: Multiple iterators can be created to traverse the collection at the same time. This means that different parts of the program can independently iterate over the collection without interfering with each other.

Real-world example (ShopNest)

Use a GoF pattern in ShopNest only when it removes duplication or makes a change safer—explain the problem it solves in the interview.

Say this in the interview

1. Define — one clear sentence (the short answer above).
2. Example — relate it to a project like ShopNest or your real work.
3. Trade-off — when you would not use it.