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Database - Distributed Databases

Exercise : Distributed Databases - General Questions
1.
A distributed database has which of the following advantages over a centralized database?
Software cost
Software complexity
Slow Response
Modular growth
Answer: Option
Explanation:
No answer description is available. Let's discuss.
2.
An autonomous homogenous environment is which of the following?
The same DBMS is at each node and each DBMS works independently.
The same DBMS is at each node and a central DBMS coordinates database access.
A different DBMS is at each node and each DBMS works independently.
A different DBMS is at each node and a central DBMS coordinates database access.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
3.
A transaction manager is which of the following?
Maintains a log of transactions
Maintains before and after database images
Maintains appropriate concurrency control
All of the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
4.
Location transparency allows for which of the following?
Users to treat the data as if it is at one location
Programmers to treat the data as if it is at one location
Managers to treat the data as if it is at one location
All of the above.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
5.
A heterogeneous distributed database is which of the following?
The same DBMS is used at each location and data are not distributed across all nodes.
The same DBMS is used at each location and data are distributed across all nodes.
A different DBMS is used at each location and data are not distributed across all nodes.
A different DBMS is used at each location and data are distributed across all nodes.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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