A Disaster Recovery (DR) package is a set of documents, tools, and resources that are needed to restore the normal operations of a system or network after a disaster. A DR package should include the following documentation: hardware configuration instructions, hardware configuration software, an operating system image, a data restoration option, media retrieval instructions, backup and recovery procedures, contact lists, and emergency response plans. These documents can help to rebuild the system or network from scratch, restore the data from backups, and resume the business functions as quickly as possible. Source code, compiled code, firmware updates, operational log book and manuals are not essential for a DR package, as they are more related to development, maintenance, or operation of the system or network. Data encrypted in original format, auditable transaction data, and recovery instructions for future extraction on demand are not part of a DR package, as they are more related to data security, audit, or compliance. System configuration including hardware, software, hardware, interfaces, software Application Programming Interface (API) configuration, data structure, … are not sufficient for a DR package, as they do not include the instructions, software, or procedures to restore the system or network. References: CISSP All-in-One Exam Guide, Eighth Edition, Chapter 10: Business Continuity and Disaster Recovery Planning, page 631; CISSP Official (ISC)2 Practice Tests, Third Edition, Domain 7: Security Operations, Question 7.16, page 276.