Which of the following is true concerning a global transaction?

Question

Options:

A . The required data are at one local site and the distributed DBMS routes requests as necessary.

B . The required data are located in at least one nonlocal site and the distributed DBMS routes requests as necessary.

C . The required data are at one local site and the distributed DBMS passes the request to only the local DBMS.

D . The required data are located in at least one nonlocal site and the distributed DBMS passes the request to only the local DBMS.

Answer: Option B

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More Questions on This Topic :

Question 1. Replication should be used when which of the following exist?....

Question 2. Storing a separate copy of the database at multiple locations is which of the following?....

Question 3. A homogenous distributed database is which of the following?....

Question 4. A distributed database is which of the following?....

Question 5. A semijoin is which of the following?....

Question 6. Which of the following is a disadvantage of replication?....

Question 7. A distributed database can use which of the following strategies?....

Question 8. Which of the following is not one of the stages in the evolution of distributed DBMS?....

Question 9. With failure transparency, all of the actions of a transaction are committed or none of them are committed.....

Question 10. Each site (or node) in a distributed system is subject to the same types of failure as in a centralized system.....

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