You installed the Oracle Grid Infrastructure on a four-node cluster before discussing the network requirements with the network administrator who was on holiday.
You created a single scan named mydb-scan.myclust.example.com by adding this name to
the /etc/hosts file. As a result, the Grid Infrastructure has four node listeners and node VIP but only a single SCAN listener and SCAN VIP.
The network administrator has returned and modified the corporate DNS server to associate three IP addresses with the mydb-scan.myclust.example.com scan name. The SCAN VIPs are on the same network as the node VIPs.
You now must replace the single SCAN VIP and listener with three of each for high availability purposes and make certain that the SCANs and listeners are active. Which procedure will do this properly if run as the root user?
A.
srvctl stop scan_listener
srvctl stop scan
srvctl start scan
srvctl start scan_listener
B.
srvctl stop scan_listener
srvctl stop scan
srvctl remove scan
srvctl add scan -n MYDB-SCAN.MYCLUST.EXAMPLE.COM
C.
srvctl start scan
srvctl start scan_listener
srvctl add scan -n MYDB-SCAN.MYCLUST.EXAMPLE.COM
srvctl start scan
srvctl start scan_listener
D.
srvctl stop scan_listener
srvctl stop scan
srvctl remove scan
srvctl add scan
srvctl start scan
srvctl start scan listener
Answer should be C.
In “B” you do not meet requirement “make certain that the SCANs and listeners are active.”
Correct answer is D.
Yup, seems you are right
$ srvctl start scan
PRCC-1014 : scan1 was already running
you cannot run it twice
and you need to stop scan_listener first