A network engineer is tasked with backing up configurations for all routers and switches in a large enterprise network. Which of the following actions would effectively ensure that the configurations are both current and securely stored?
Save backups on the administrator's device for secure least privilege access.
Manually copy each configuration to a USB drive at the end of each month.
Automate the backup process to occur nightly and store the backups off-site.
Store backups on a server within the same local network for quick restoration.