“Clustered index” and “Order by Clause”

Question

Is there any difference between Clustered Index and Order by Clause?

I have to populate the Dropdown from the Master Table and followin

Answer 1

If Id is your primary key(that is common scenario) and is used in joins, you should create clustered index on Id. But for searching performance gain, you should create nonclustered index on Name which will include Id.