DBMS-Distributed Database Systems Questions and Answers

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Q41
Data allocation is a
  • A technique of breaking up the database into logical units, which may be assigned for storage at the various sites
  • B process of deciding about locating (or placing) data to several sites.
  • C technique that permits storage of certain data in more than one site.
  • D None of these.
Answer: Option B
Q42
Data rreplication is a
  • A Technique of breaking up the database into logical units, which may be assigned for storage at the various sites.
  • B process of deciding about locating (or placing) data to severall sites.
  • C technique that permits storage of certain data in more than one site.
  • D None of these
Answer: Option C
Q43
Which of the following refers to the operation of copying and maintaining database objects in multiple database belonging to a distributed system ?
  • A Replication
  • B Backup
  • C Recovery
  • D None of these
Answer: Option A
Q44
In distributed query processing, semijoin operation is used to
  • A reduce the size of a relation that needs to be transmitted.
  • B reduce the communication costs.
  • C Both (a) and (b)
  • D None of these
Answer: Option C
Q45
Which of the following is the function of a distibutted DBMS ?
  • A Distributed data recovery
  • B Distributed query processing
  • C Replicated data management
  • D All of these
Answer: Option D
Q46
DSS helps in the analysis of business information.
  • A TRUE
  • B FALSE
Answer: Option A
Q47
Discuss the evolution of decision support system.
  • A TRUE
  • B FALSE
Answer: Option A
Q48
MDS and MIS were later on commonly known as DSS.
  • A TRUE
  • B FALSE
Answer: Option A
Q49
DSS is an interactive, flexible and adaptable CBIS
  • A TRUE
  • B FALSE
Answer: Option A

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