NET, IAS, State-SET (KSET, WBSET, MPSET, etc.), GATE, CUET, Olympiads etc.: Computers MCQs (Practice_Test 21 of 21)
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- The model which provides a concrete expression of these concepts by means of two fundamental ideas. Logical records and links, is called a
- relationship model
- network model
- hicrachical model
- none of the above
- The network model has been established by
- CODASYL committee
- IBM
- ECA
- none of the above
- A link may be defined as the representation of an
- objects
- programs
- association
- none of the above
- DML is intended provide operations which ope-rate upon data stored in the
- file
- record
- database
- none of the above
- In the hierarchical model a hierarchical schema is defined by a tree whose nodes are
- database
- logical record types
- links
- none of the above
- The set of all values in the relations represents the contents of the
- database
- record file
- table
- none of the above
- In hierarchical data model, the database is represented by
- a directed graph
- tree structures
- relation
- none of the above
- A Database Management System (DBMS) is a software system capable of supporting and managing any number of independent
- results
- relations
- Both
- none of the above
- Support for data independence is arguably the most important feature of a
- system
- database system
- relation
- none of the above
- Distinct levels of data independence arc
- two
- three
- four
- none of the above
- Database software may be divided into
- four distinct categories
- three distinct categories
- two distinct categories
- none of the above
- Any large software project may be divided into several
- project phases
- sub projects
- hardware
- none of the above
- Data modeling occupies an important position in the
- database file
- database life cycle
- relation
- none of the above
- The term “software engineering” implies the application of scientific knowledge and discipline to the construction of
- database record
- computer hardware system
- computer software system
- none of the above
- Program correctness has been a strong motivation for much of the work in software engineering
- high-level language programming
- programming language design
- Pascal
- none of the above