In a heterogeneous environment, not all users use the same DBMS.
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Q40: A distributed database is NOT just a
Q41: The overriding principle in distributed database design
Q42: Replicated databases usually result in tightly coupled
Q43: In a homogeneous environment, the same DBMS
Q44: Replication is often used for noncollaborative data.
Q46: Replication should NOT be used if timely
Q47: Applications that can tolerate out-of-date data are
Q48: One way to generate messages for near-real-time
Q49: Location efficiency enables a user to access
Q50: Local autonomy means that data are not
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