1) Backup of your WP Database
Your WP database contains every post, every comment and every link you have on your blog. If your database gets erased or corrupted, you stand to lose everything you have written. There are many reasons why this could happen and not all are things you can control. With a proper backup of your WP db and files, you can quickly restore things back to normal.
2) Backup of your files which includes
- Your WP core files
- WordPress plugin
- Your WordPress themes
- Your uploaded images
In-short complete manual backup of your wordpress website