Western Governors University (WGU) ITEC2801 D415 Software Defined Networking Practice Exam

The correct answer is significant in the context of OpenStack as it pertains to managing secrets such as passwords, encryption keys, and certificates. Barbican is designed specifically for secure storage and management of sensitive data within the OpenStack ecosystem. It offers a way for applications running in OpenStack to access trusted DNS sources by securely managing the necessary credentials.

While the other modules serve different purposes within OpenStack—Murano focuses on application cataloging and deployment, Trove is dedicated to database as a service (DBaaS), and Sahara is aimed at data processing services—none of them are tailored to specifically point applications to trusted DNS sources. Each of these modules excels in their targeted functions but does not provide the same capability as Barbican in the context of managing securely sourced DNS information. Thus, Barbican is the module that best fits the requirement of facilitating secure connections to trusted DNS sources for applications within the OpenStack structure.