Oracle RAC Questions and Answers

33. What is RAC?
 
  • Real Application Cluster (RAC) is a clustering solution.
  • It ensures high availability for database applications.
  • A RAC setup contains at least two nodes for a database.
  • RAC provides high availability and load balancing through these nodes.
 
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34. What is the Cluster Ready Service (CRS) resource?
  CRS is the main program that manages high availability operations. The resource managed by CRS process is called CRS or cluster resource, such as dataabase, instance, service, listener, VIP address, or application process.
 
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35. What enables the load balancing of applications in RAC?
  Oracle Net Services enables the load balancing of applications in RAC.
 
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36. What are the different types of connection load balancing?
  Following are the two types of connection load balancing
  • Server side load balancing
  • Client side load balancing
 
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