DevOps culture represents a fundamental shift from traditional, siloed IT structures to a more integrated and collaborative environment. The core of this cultural transformation is centered on people and how they interact. It fosters a mindset of shared ownership, mutual respect, and collective responsibility for the entire service lifecycle. Effective communication is the essential practice that enables this collaboration, breaking down the barriers between development and operations teams. These two aspects—a focus on people and the promotion of open communication—are foundational to establishing a successful DevOps environment.

B. separation of duties: This is a principle of traditional IT models that creates silos, which the collaborative nature of DevOps culture actively seeks to eliminate.

C. use of specific tools: While tools are enablers of DevOps practices, the culture itself is tool-agnostic. The focus is on the principles of automation and collaboration, not on any particular technology.

1. Source: Junos Automation and DevOps (JAUT) Student Guide

Reference: Chapter 1, "Introduction to DevOps," Section: "What is DevOps?".

Details: This section describes DevOps as a cultural movement that emphasizes collaboration, communication, and breaking down silos between development and operations teams. It explicitly frames DevOps as a combination of "people, process, and tools," with the cultural change among people being the most critical starting point.

2. Source: Juniper Networks Official Documentation, "DevOps for Networking"

Reference: Solution Description Page.

Details: Juniper defines DevOps as "a mindset, a culture, and a set of technical practices." This official positioning emphasizes that culture is a primary pillar. The text further explains that this culture is about breaking down organizational barriers between teams (people) to improve the speed and quality of service delivery, which is impossible without enhanced communication.