1. Is the order intrinsic or external? If the data within the collection is controlled by how it is inserted, the order is determined externally. If the data is stored in a location based on an algorithm used by the collection, then the ordering is intrinsic.

1. Is the order intrinsic or external? If the data within the collection is controlled by how it is inserted, the order is determined externally. If the data is stored in a location based on an algorithm used by the collection, then the ordering is intrinsic.

2. Is the number of items in the collection fixed? The size of the collection is fixed on construction and will not resize automatically.