This document contains a collection of questions and answers related to Informatica technical interviews. It includes questions about bitmap indexes, deleting duplicate rows from flat files, recovery strategies after a session fails, limitations of joiner transformations, how the server recognizes source and target databases, the purpose of rank indexes in a group, database operation constants and flags, generating reports using Informatica, starting batches within batches, types of groups in a router transformation, types of batches, the PowerCenter repository, differences between dynamic and static caches, the use of source qualifiers, page code compatibility, synonyms, and types of lookup caches.