Which of the following are the centralized administration technologies? Each correct answer represents a complete solution.
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A. B. C. D.BA.
Centralized administration technologies are used to manage and control access to resources from a central location. They provide a way to authenticate and authorize users, devices, and applications to access resources across a network. The correct answers are A. RADIUS and B. TACACS+.
A. RADIUS (Remote Authentication Dial-In User Service) is a client-server protocol that provides centralized authentication, authorization, and accounting management for users who connect and use a network service. RADIUS servers are typically used for remote access, wireless access points, and VPNs. The authentication process starts when a user requests access to a network resource. The request is sent to a RADIUS server, which checks the user's credentials against a user database or directory service. If the credentials are valid, the RADIUS server sends an Access-Accept message back to the client, allowing access to the network resource. RADIUS can also provide accounting and reporting features to track network usage and activity.
B. TACACS+ (Terminal Access Controller Access-Control System Plus) is a client-server protocol that provides centralized authentication, authorization, and accounting management for network devices. TACACS+ servers are typically used for network infrastructure devices, such as routers, switches, and firewalls. The authentication process starts when a device requests access to a TACACS+ server. The device sends a request to the server, which checks the device's credentials against a user database or directory service. If the credentials are valid, the TACACS+ server sends an Access-Accept message back to the device, allowing access to the network resource. TACACS+ can also provide accounting and reporting features to track network usage and activity.
C. Media Access Control (MAC) is a hardware-based address that uniquely identifies a device on a network. MAC addresses are used by devices to communicate with each other on a local network. MAC addresses are not a centralized administration technology and do not provide authentication or authorization features.
D. Peer-to-Peer (P2P) is a decentralized network model where devices can communicate and share resources directly with each other without a central server. P2P networks do not use centralized administration technologies and do not provide authentication or authorization features.