I usually prefer MySQL workbench to take backups and restore them. But sometimes circumstances bring forward a machine that doesn’t contain workbench. Use command line utility in that case. These backups/dumps are nothing but SQL statements.
mysqldump -u[username] -p [database_name]>[filename].sql
To restore a backup.
mysql -u[username] -p [database_name] <[file_name].sql
If database name is not known then log into MySQL and find database using