They apply to shared hosting, reseller hosting, VPS hosting, cloud hosting, and dedicated hosting with the cPanel control panel.
If you have reseller, VPS, Cloud, or Dedicated hosting, you may have the WHM administrative area (some Managed Reseller or Managed VPS or Cloud plans may restrict access to WHM).
You can also sign in to individual cPanel accounts by going to “Account Information” -> “List Accounts” and clicking on the cPanel icon next to the account.