(Answered) Select all statements that correctly describe distributed

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Select all statements that correctly describe distributed database management systems (DDBMSs).

a.When compared to a centralized DBMS, a distributed DBMS is usually more complex.

b.When a single database management system runs across multiple processors and disks, it is a DDBMS.

c.When compared to a centralized DBMS, a distributed DBMS usually has higher availability to the database clients.

d.If a database instance can be accessed by a database client over a computer network, that instance's underlying database management system is always a DDBMS.

e.If two or more database instances maintain the data for a single logical database schema, the underlying database management system is always a DDBMS.

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