Which of the following protocols is used for remotely managing network devices?

Simple Network Management Protocol (SNMP) is used for monitoring and managing network devices such as routers, switches, and servers. It allows network administrators to collect information about device status, performance metrics, and configuration parameters. SNMP operates over the UDP protocol and employs a client-server model, where the management system (the client) queries the managed devices (the servers). It enables the setting of alerts and notifications, allowing for proactive management of network health. With SNMP, administrators can automate monitoring tasks, ensuring that devices operate efficiently and that any issues are addressed promptly. Why Other Options are Wrong: A) FTP (File Transfer Protocol) is focused on file transfers, not network management. B) Telnet is used for command-line interface access to devices, but it is not specifically designed for device management like SNMP. C) POP3 (Post Office Protocol 3) is a protocol used to retrieve emails from a mail server, not for managing network devices. D) SMTP (Simple Mail Transfer Protocol) is used for sending emails and is unrelated to network device management.