Final answer:
The CODASYL DBTG model is also known as the COBOL-68 model. It is a hierarchical database model.
Step-by-step explanation:
The model that is also known as the CODASYL DBTG model is the COBOL-68 model. This model was developed by the Conference on Data Systems Languages (CODASYL) and the Data Base Task Group (DBTG). It is a hierarchical database model that organizes data in a tree-like structure.