23.Your database is started with SPFILE. You want the database instance to be dynamically
registered with a listener L2 with the following details:
Protocol: TCP
Host: indl151e
Port: 1525
Which is the correct order of the steps that you would follow to achieve this?
1. Set the LOCAL_LISTENER parameter to L2 dynamically.
2. Make an entry for L2 in tnsnames.ora on the database server.
3. Restart L2.
4. Modify the listener.ora file to add the instance name in SID_LIST of L2.
A: 1, 2, 4, 3
B: 1, 2, 3; 4 is not required.
C: 2, 1; 3 and 4 are not required.
D: 1, 2; 3 and 4 are not required.

为什么要选C, 2 这一步作用是什么? thanks