For each of the following cases, select the type of NoSQL DBMS that would fit best the needs of the situation. a. The database has to support a relatively complex hierarchical internal record structure that may vary for each record. b. The key requirement for the database is to access a specific record as quickly as possible without any concern regarding the internal structure of the record. c. The data are particularly well suitable to be organized as a network of associations between the data items. d. It is important that the DBMS provides quick access to each of the records by a key value, but, in addition, it has to also allow easy access to the components of each record.

Check the explanation

Explanation:

(a) There will be a need for the database to support a comparatively complex and complicated hierarchical internal record structure that may vary for each record. Column store NoSQL DBMS

(b)The key requirements for the database are to access a specific record structure as quickly as possible without any concern regarding the internal structure of the record. Key value store NoSQL DBMS

(c) The data are specifically well suited to be organized as a network of connections amid the data items. Graph Base NoSQL DBMS

(d) It is essential that the DBMS offers quick access to each of the records by a key value, but, in addition, it has to also allow easy access to the components of each record. Document store NoSQL DBMS

answer; i believe that the correct answer is (speed)(c)

they really not common the os x is just a better version of the os like in iphone theirs xr and their xs