A network engineer is upgrading the WLC image through the GUI for maintenance. What three transfer methods are available? (Choose three.)

FTP (File Transfer Protocol) is a standard protocol widely supported by Cisco WLCs for transferring firmware images.

SNMP (Simple Network Management Protocol) is used for network device monitoring and management, not for transferring firmware images.

TFTP (Trivial File Transfer Protocol) is a lightweight protocol commonly used for transferring configuration and image files to network devices due to its simplicity.

SFTP (SSH File Transfer Protocol) provides secure file transfer capabilities over an SSH connection, which is a preferred method for secure firmware upgrades.

HTTP (Hypertext Transfer Protocol) is typically used for web browsing and some downloads, but it is not a primary or universally supported method for WLC image upgrades compared to the designated file transfer protocols.

SMB (Server Message Block) is a network file sharing protocol primarily used by Windows systems and is not supported by WLCs for image upgrades.

HTTPS (Hypertext Transfer Protocol Secure) provides secure web access and may be used for specific web-based downloads, but is generally not a primary image transfer protocol for WLCs in this context.

SCP (Secure Copy Protocol) is a secure file transfer protocol, but SFTP is generally the more commonly listed and supported secure option for WLC image upgrades among the given choices.