Extensive question-and-answer guides focused on information technology roles, primarily covering server administration, Active Directory (AD), and PowerShell. One major source details a range of assessment products from WeCP, highlighting AI-powered tools like Sherlock for integrity checks and AI Interviewers for hiring. Several sources focus on Microsoft environments, defining core concepts like Active Directory forests, domains, and Organisational Units (OUs), as well as critical components such as the Domain Controller, Global Catalog, and SYSVOL folder. Finally, the texts offer detailed technical troubleshooting steps and definitions for essential networking concepts (e.g., HTTP vs. HTTPS, DNS, load balancers) and Windows-specific topics like PowerShell execution policies, WMI/CIM, and server performance monitoring metrics (CPU, memory, storage latency).