If you are an expert in Oracle Real Application Clusters then this is for you. Let us know if you looking for a job change? Then do not worry, we’ve a right answer for your job interview preparation. If you are preparing for Oracle Real Application Clusters job interview then go through Wisdomjobs interview questions and answers page. Oracle Real Application Clusters is the group of servers that are combined together to form a single interface to all the systems to work on it. All the systems use same database thus increasing efficiency. Good knowledge on the Oracle Real Application Clusters are must to crack the job. Below are the Oracle Real Application Clusters job interview questions and answers which makes you comfortable to face the interviews:
Question 1. List The Background Processes Required For Rac?
Answer :
The background processes required for RAC are given as follows:
Question 2. What Is A Crs Resource?
Answer :
Oracle Clusterware is used to manage high-availability operations in a cluster. Anything that Oracle Clusterware manages is known as a CRS resource. Some examples of CRS resources are database, an instance, a service, a listener, a VIP address, an application process etc.
Question 3. What Kind Of Storage We Can Use For The Rac Database Storage?
Answer :
Question 4. What Is Oclumon Used For In A Cluster Environment?
Answer :
The Cluster Health Monitor (CHM) stores operating system metrics in the CHM repository for all nodes in a RAC cluster. It stores information on CPU, memory, process, network and other OS data, This information can later be retrieved and used to troubleshoot and identify any cluster related issues. It is a default component of the 11gr2 grid install. The data is stored in the master repository and replicated to a standby repository on a different node.
Question 5. What Are The File Systems And Volume Management Techniques Used In Oracle Rac?
Answer :
Question 6. What Is A Vip In Rac Use For?
Answer :
The VIP is an alternate Virtual IP address assigned to each node in a cluster. During a node failure the VIP of the failed node moves to the surviving node and relays to the application that the node has gone down. Without VIP, the application will wait for TCP timeout and then find out that the session is no longer live due to the failure.
Question 7. What Is The Use Of Atomic Control File Memory Service (acms)?
Answer :
ACMS ensures global updates to System Global Area (SGA) in a RAC set up.
Question 8. Mention How Oracle Flex Asm Works?
Answer :
Oracle Flex ASM instance when fails on a particular node, then the Oracle Flex ASM instance is passed over to another node in the cluster.
Question 9. What Are The Provisions And Resources Provided In The Oracle’s Cloud Server?
Answer :
Question 10. Explain The Hardware Architecture Used In Oracle Rac?
Answer :
Question 11. Where Are The Database Software Files Stored On A Rac Environment?
Answer :
The base software is installed on each node of the cluster and the database storage on the shared disks.
Question 12. What Is Rolling Upgrade?
Answer :
Question 13. What Are The Types Of Connection Load-balancing?
Answer :
There are two types of connection load-balancing: server-side load balancing and client-side load balancing.
Question 14. What Is Required By Oracle Rac Database To Connect To A Network?
Answer :
Answer :
Question 16. Where Are The Cluster Ware Files Stored On A Rac Environment?
Answer :
The Clusterware is installed on each node (on an Oracle Home) and on the shared disks (the voting disks and the CSR file).
Question 17. What Is Global Services Daemon (gsd)?
Answer :
Question 18. What Is Cache Fusion?
Answer :
In a RAC environment, it is the combining of data blocks, which are shipped across the interconnect from remote database caches (SGA) to the local node, in order to fulfill the requirements for a transaction (DML, Query of Data Dictionary).
Question 19. What Is The Main Purpose Of Oracle Real Application Clusters (rac)?
Answer :
Question 20. What Is Rac Cluster?
Answer :
RAC cluster is a database with a shared cache architecture that overcomes the limitations of traditional shared nothing and shared disk approaches.
It is a key component of Oracle's private cloud architecture.
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