Best Informatica administrator interview questions with answers – Part 2

11. What is deployment groupAnswer: A deployment group is a global object that consists of versioned objects from one or more folders. You use a deployment group to copy the versioned objects to another folder or repository. You can use a deployment group when you want to copy some, but not all, of the objects in a folder. You can also use a deployment group to copy objects from multiple folders

12. How to go to the older version for a mapping.Answer: There is no direct approach to revert back a mapping to previous version however it can be achieved by the procedure defined below.Right click on the mapping->version-View historyAll the versions will be listed out. Select the version you want to revert back to and export or save its definition in local drive. Rename the last version with new name and then import the file.

13. What is DR strategy for Informatica project?Answer:A backup node can be defined for all nodes and services, so incase if the primary node goes down the backup node can take over the control.Note: You should have the license to create a backup node

14. How to open an older version of an object in the workspaceAnswer:To open an older version of an object in the workspace:I. In the workspace or Navigator, select the object and click Versioning > View History.II. Select the version you want to view in the workspace and click Tools > Open in Workspace.Note: An older version of an object is read-only, and the version number appears as a prefix before the object name. You can simultaneously view multiple versions of a non-composite object in the workspace

15. How would you join a node to the already existing domain?Answer: joining a node to an existing domain can be archived while installing Informatica.Eg: Server is on machine1 and the new node is on machine2. Then go to machine2-Open Installer->join node to domain while configuring domain and provide the existing domain details.

16. Is it possible to create multiple domains on a single Informatica server?Answer: Yes it is possible to create multiple nodes on same Informatica server

17. How to compare two versions of an object

Answer:I. In the workspace or Navigator, select an object and click Versioning > View History.II. Select the versions you want to compare and then click Compare > Selected Versions.-Or-Select a version and click Compare > Previous Version to compare a version of the object with

the previous version.The Diff Tool appears.

18. What is primary and backup node?Answer: Primary node is a node where a current node or applications are running and backup node is defined to run the domain or applications services while primary node goes down

19. What is a grid in Informatica?Answer: Grid in Informatica is used for load balancing. A grid is nothing but a combination of nodes which distributes the request among them.Eg: node1, node2, node3, node4 are assigned in a grid. 10 workflows started simultaneously. Now instead of giving burden to a single node to run the 10 workflows the request for running workflows will be distributed to all nodes.

Also Read: Idiot’s Guide to Big Data

20. Can we create a Integration service without a Repository service and vice versa.Answer: It is not possible to create an Integration service without a repository service however a repository can be created without an integration service.