Data Models Categories Multiple Choice Questions (MCQ) PDF - 92

MCQ 456: The data model which uses the concepts such as attributes, relationships and entities is classified as

1. conceptual data model
2. representative data models
3. graphical data models
4. occasional data models

MCQ 457: The normal form which only includes indivisible values or single atomic values is classified as

1. third normal form
2. first normal form
3. second normal form
4. fourth normal form

MCQ 458: The property which states that files of data stored in database management system does not belong to the application programs is called

1. program data dependence
2. program data dependence
3. structural independence
4. conceptual independence

MCQ 459: The technique of writing data on two physical disks and treating both disks as one logical disk unit is classified as

1. shadowing
2. clustering
3. distributing
4. non shadowing

MCQ 460: The language used to insert, delete, modify and retrieve data in DBMS is considered as

1. logical path language
2. external mapping language
3. data manipulation language
4. internal mapping language