A Primary Key is always enforced by a clustered index at creation?

Correct answer (SQL Server Central) : False

I would just like to add a small point, whenever you create a Primary Key, by default its ALWAYS going to be Clustered. Unless you create a Non Clustered Index Primary Key.

So, when you are saying that IF a Clustered Index already exists, then your what you are mentioning is valid. Else the Primary key, which is usually created at when you are creating the table, would be Clustered index unless specified.

Kindly reply if there is something else to add or I haev misquoted anywhere.

Warm regards,

Sameer Chachad.