Access control types define how users get permission to resources, with core models including Role-Based (RBAC), Attribute-Based (ABAC), Discretionary (DAC), and Mandatory (MAC), plus rule-based (RuBAC) and identity-based systems, balancing flexibility (DAC) with strict security (MAC) using roles, attributes, or predefined rules to manage digital and physical access.

Few questions on Strings and arrays and few questions on methods, modifiers, specifiers so I explained each and every aspect that I know and what they want from me as well