Your customer needs server availability that provides uninterrupted access to database services, handling any unexpected failure of one or more machines hosting the database server, due to a…

Question

Options

• AOracle Data Guard
• BOracle Streams
• COracle Real Application Clusters
• DOracle GoldenGate

• A
  3% (2)
• B
  8% (5)
• C
  72% (43)
• D
  17% (10)

Explanation

Server HA: Oracle Real Application Clusters Server availability is related to ensuring uninterrupted access to database services despite the unexpected failure of one or more machines hosting the database server, which could happen due to hardware or software fault. Oracle Real Application Clusters (RAC) can provide the most effective protection against such failures. Oracle Real Application Clusters (RAC) is Oracle's premier shared everything database clustering technology. Oracle Database with the RAC option enables multiple database instances to run on different servers in the cluster against a shared set of data files that comprise a database. The database spans multiple hardware systems and yet appears as a single unified database to the application. The Oracle RAC architecture extends availability and scalability benefits to all applications, - Fault tolerance within the server pool, especially for computer failures. Since the nodes run independently, the failure of one or more does not affect other nodes. This architecture also allows a group of nodes to be transparently put online or taken offline, while the rest of the system continues to provide database services. - Flexibility and cost effectiveness in capacity planning, so that a system can scale to any desired capacity as business needs change. Oracle RAC gives users the flexibility to add nodes to the system as capacity needs increase, reducing costs by avoiding the more expensive and disruptive upgrade path of replacing an existing monolithic system with a larger one. Oracle RAC supports enables near-linear scaling without any changes to your application. Application Continuity, a new capability with Oracle Database 12c, protects applications from database session failures due to instance, server, storage, network or any other related component. Application Continuity re-plays affected "in-flight" requests so that the failure of a RAC node appears to the application as a slightly delayed execution. Oracle RAC also supports the new multitenant architecture, and in addition to providing server

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