DBMS-Database System Architecture Questions and Answers

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Showing 10 of 41 questions
Q11
The primary difference between the different data models lies in the methods of expressing relationships and constraints among the data elements.
  • A TRUE
  • B FALSE
Answer: Option A
Q12
In a database, the data are stored in such a fashion that they are independent of the program of users using the data.
  • A TRUE
  • B FALSE
Answer: Option A
Q13
The plan (or formulation of scheme) of the database is known as schema.
  • A TRUE
  • B FALSE
Answer: Option A
Q14
The physical schema is concerned with exploiting the data structure offered by a DBMS in order to make the scheme understandable to the computer
  • A TRUE
  • B FALSE
Answer: Option A
Q15
The logical schema, deals with the manner in which the conceptual database shall get represented in the computer as a stored database.
  • A TRUE
  • B FALSE
Answer: Option A
Q16
Subschemas act as a unit for enforcing controlled access to the database.
  • A TRUE
  • B FALSE
Answer: Option A
Q17
The process of transforming requests and results between three levels are called mappings.
  • A TRUE
  • B FALSE
Answer: Option A
Q18
The conceptual/internal mapping defines the correspondence between the conceptual view and the stored database.
  • A TRUE
  • B FALSE
Answer: Option A
Q19
The external/conceptual mapping defines the correspondence between a particular external view and organisation
  • A TRUE
  • B FALSE
Answer: Option A
Q20
A data model is an abstraction process that concentrates essential and inherent aspects of the organization's application while ignores supefluous or accidental details.
  • A TRUE
  • B FALSE
Answer: Option A

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