View of Data Quiz with Answers PDF Download – Test 409

MCQ 2041: Data model that permits the specification of data where individual data items of same type may have different sets of attributes, is known as:

1. Relational Model
2. Entity relationship model
3. Object-based Data model
4. Semi-structured data model

MCQ 2042: The architecture layer of the application that provides a high-level view of data and actions on data is known as:

1. Business-logic layer
2. View-logic layer
3. Domain-logic layer
4. Data-logic layer

MCQ 2043: The various copies of the same data may no longer agree, is the process known as:

1. Data redundancy
2. Data Isolation
3. Data Duplication
4. Data Inconsistency

MCQ 2044: The database system stores the query expression associated with the:

1. View
2. View definition
3. View relation
4. View schema

MCQ 2045: A special value that signifies that the value is unknown or does not exist, is said to be:

1. Null
2. Unknown
3. Known
4. 0