ORA defines the concept of Data Grid. Which of the following is the most accurate definition of
Data Grid?
A.
A Data Grid is a cluster of databases providing scalability and high availability.
B.
A Data Grid is a system composed of multiple servers that work together to manage
Information and related operations such as computations in a distributed environment.
C.
A Data Grid is used for data mirroring and data replication.
D.
A Data Grid is a tool used to perform ETL (Extract-Transform-Load).
Explanation:
A Data Grid is a system composed of multiple servers that work together to manage
information and related operations such as computations in a distributed
environment.
Note: An In-Memory Data Grid is a Data Grid that stores the information in
memory to achieve very high performance, and uses redundancy by keeping copies of
that information synchronized across multiple servers to ensure the resiliency of the
system and the availability of the data in the event of server failure.
Reference: Oracle Reference Architecture, Application Infrastructure Foundation, Release 3.0