Although the dbms is designed to recover a database to a previous consistent state when an interruption prevents the completion of a required set of transactions, the transactions themselves are defined by the end user or programmer and must be correct.

Semantically is correct.

Explanation:

The following answer is correct because the semantic data-model is the high-level model that is used by the database to recover the previous data of the database when any interruption is prevented and in it, the organization of the data depends on the binary models. It also represents the data according to the real world.

the major difference between the two is the objective and the reward of the game. candy crush has a puzzle theme with the objective of meeting a specific quota of points or objects, you are able to gain access to the next level and compete with peers on the process. on duolingo the objective is rather different, you are given sets of questions for you to answer for you to move to the next level and as for the reward, you are able to learn available language as this is an app developed to teach the user about other languages.