Infosys Question:

Can you please explain the difference between EXE and a DLL?

Answer:

The term EXE is a shortened version of the word executable as it identifies the file as a program. On the other hand, DLL stands for Dynamic Link Library, which commonly contains functions and procedures that can be used by other programs.

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Can you please explain the difference between Clustered index and non clustered index?	Suppose 9 cards are there. you have to arrange them in a 3*3 matrix. cards are of 4 colors. They are red, yellow, blue and green. Conditions for arrangement: one red card must be in first row or second row. 2 green cards should be in 3rd column. Yellow cards must be in the 3 corners only. Two blue cards must be in the 2nd row. Atleast one green card in each row?