Distributed Databases In a semijoin, only the joining attribute is sent from one site to another, and then only the required rows are returned. False True False True ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases An autonomous homogenous environment is which of the following? A different 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 a central DBMS coordinates database access. The same DBMS is at each node and each DBMS works independently. A different 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 a central DBMS coordinates database access. The same DBMS is at each node and each DBMS works independently. ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases Replication should be used when which of the following exist? When using many nodes with different operating systems and DBMSs and database designs. When transmission speeds and capacity in a network prohibit frequent refreshing of large tables. All of these The application's data can be somewhat out-of-date. When using many nodes with different operating systems and DBMSs and database designs. When transmission speeds and capacity in a network prohibit frequent refreshing of large tables. All of these The application's data can be somewhat out-of-date. ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases Asynchronous technology can result in unsatisfactorily slow response time because the distributed DBMS is spending considerable time checking that an update is accurately and completely propagated across the network. True False True False ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases Some of the columns of a relation are at different sites is which of the following? Vertical Partitioning Horizontal Partitioning Horizontal and Vertical Partitioning Data Replication Vertical Partitioning Horizontal Partitioning Horizontal and Vertical Partitioning Data Replication ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases The cost to perform a snapshot refresh may depend on whether the snapshot is simple or complex. True False True False ANSWER DOWNLOAD EXAMIANS APP
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