What are the disadvantage of not using intermediate and root file while uploading ssl certificate to nginx?

I was installing ssl certificate in nginx server.
We were given 4 files. I could not note what contained in those files, but I vaguely remember their name.

root.txt
intermediate.txt
private.txt
certificate.txt

But I used only private.txt… Continue reading What are the disadvantage of not using intermediate and root file while uploading ssl certificate to nginx?