You can find this mention in the best puppet interview questions for fresher candidates. The Puppet Catalog is a document used by Puppet Agent for configuration of a node. The agent downloads the catalog from the Puppet Master. The catalog describes the desired state of each resource that has to be managed.
Also, the catalog can contain information about dependencies among resources for their effective management. Candidates can also improve their answer to this mention among top puppet interview questions. You can state information about the sources of configuration info used for the compilation of a catalog. The three sources of configuration info are puppet manifests, data provided by the agent, and external data.