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1.
Which of the following is not one of the stages in the evolution of distributed DBMS?
Answer & Solution
Answer: (A) Unit of work
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2.
A distributed database can use which of the following strategies?
Answer & Solution
Answer: (D) All of the above
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3.
Which of the following is a disadvantage of replication?
Answer & Solution
Answer: (C) Each site must have the same storage capacity.
Solution:
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4.
A semijoin is which of the following?
Answer & Solution
Answer: (C) Only the joining attributes are sent from one site to another and then only the required rows are returned.
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5.
A distributed database is which of the following?
Answer & Solution
Answer: (A) A single logical database that is spread to multiple locations and is interconnected by a network
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