Data Abstraction Notes Questions with Answers PDF Download – Test 87

MCQ 431: The identification, aggregation and instantiation are abstraction concepts used in:

1. intension and extension models
2. classes and nodes models
3. concrete models
4. semantic data models

MCQ 432: All the information about usage standards, decision of designs, user information and description of application programs is stored in:

1. data repository
2. data utility
3. data compiler
4. data host

MCQ 433: The type of data in SQL which includes TIME and DATE fields plus six positions for other decimal fractions is classified as:

1. timestamp
2. interval stamp
3. Boolean stamp
4. literal string stamp

MCQ 434: In Three-Schema Architecture, the schema which gives the description about physical data model, access path and details of storage of data is called:

1. logical schema
2. conceptual schema
3. internal schema
4. external schema

MCQ 435: The local concurrency control, storage of data on disk pages and the buffering of disk pages are considered as tasks of:

1. client level
2. server level
3. open programming level
4. database connectivity level