“So, you’re thinking about the Cisco 350-401 study guide ENCOR exam?” I sigh, looking back on my own journey. “Let me tell you, it was brutal. I’m not talking about a couple of late-night study sessions—I mean real sweat, real tears, and more than one moment when I almost chucked my textbook out the window.” The Darkest Hour: Doubt and Despair It began...