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Q. Classes of data items in a data dictionary?
There are three classes of data items in a data dictionary
1) Data element- It is the smallest unit of data that cannot be meaningfully decomposed further. Example- Employee number and so on.
2) Data structure is a group of data elements forms a data structure.
3) Data Flows as well as Data Stores- data flows are data structures in motion whereas data stores are data structures at rest.
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What does the insert statement in extract datasets do? It describes the fields of a field group.
What is Data Flow Analysis? Ans) Having of the graphical analysis of collections of (sequential) data definitions and reference patterns to verify constraints that can be placed
What is a vertical microinstruction? Ans) A vertical microinstruction is a microinstruction that states one of a sequence of operations required to carry out a machine language
QUESTION - Fault Tolerance (a) Three computers together provide a replicated service. The manufacturers claim that each computer has a mean time between failure of five days; a
Explain virtual memory? Ans) Virtual memory tells to virtual storage. In virtual storage, portions of a user's program and data are placed in auxiliary storage, and the operatin
how function strncmp work in c language
Key process areas of Capability Maturity model (CMM) Effectiveness, Predictability and control of an organization's software processes are believed to get better as the organiz
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