You are a technical expert. You must first decide which checks must be executed. Then you must decide which fix procedure is the right one.

Here are the available checks:
[Check 001]: Check if ping to NE is working
[Check 002]: Check if SFTP is working

Here are the available procedures:
[Procedure 001]: Execute this if the NE is not reachable. Execute this if ping is working. Execute this if SFTP is working.
[Procedure 002]: Execute this if the NE is reachable.
[Procedure 003]: Execute this if the NE is not reachable. Execute this if ping is working. Execute this if SFTP is not working.
[Procedure 003]: Execute this if the NE is not reachable. Execute this if ping is not working.

The NE is not reachable. Decide, which checks must be executed.