Distributed Databases Location transparency allows for which of the following? Programmers to treat the data as if it is at one location Users 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 these Programmers to treat the data as if it is at one location Users 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 these ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases Storing a separate copy of the database at multiple locations is which of the following? Data Replication Horizontal Partitioning Horizontal and Vertical Partitioning Vertical Partitioning Data Replication Horizontal Partitioning Horizontal and Vertical Partitioning Vertical Partitioning ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases A distributed database is which of the following? A single logical database that is spread to multiple locations and is interconnected by a network A single logical database that is limited to one location. A loose collection of file that is spread to multiple locations and is interconnected by a network A loose collection of file that is limited to one location. A single logical database that is spread to multiple locations and is interconnected by a network A single logical database that is limited to one location. A loose collection of file that is spread to multiple locations and is interconnected by a network A loose collection of file that is limited to one location. ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases Which of the following is true concerning a global transaction? The required data are at one local site and the distributed DBMS routes requests as necessary. The required data are at one local site and the distributed DBMS passes the request to only the local DBMS. The required data are located in at least one nonlocal site and the distributed DBMS routes requests as necessary. The required data are located in at least one nonlocal site and the distributed DBMS passes the request to only the local DBMS. The required data are at one local site and the distributed DBMS routes requests as necessary. The required data are at one local site and the distributed DBMS passes the request to only the local DBMS. The required data are located in at least one nonlocal site and the distributed DBMS routes requests as necessary. The required data are located in at least one nonlocal site and the distributed DBMS passes the request to only the local DBMS. ANSWER DOWNLOAD EXAMIANS APP
Distributed Databases The purpose of timestamping is to avoid the use of locks. True False True False ANSWER DOWNLOAD EXAMIANS APP
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
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