How to mount ASM diskgroup in oracle

We can mount ASK disk groups in two ways:

1. Using normal SQL commands :

   oracle@UATDB:~$ su - grid
   grid@UATDB:~$sqlplus / as sysasm
    Connected to:
   Oracle Database 12c Enterprise Edition Release 12.1.0.2.0 - 64bit Production
   With the Automatic Storage Management option
    SQL>ALTER DISKGROUP DATA MOUNT;
    altered

2. Using ASMCMD commands:

   ASMCMD [+] >  mount -f DATA
   ASMCMD [+] > mount --restrict DATA
   ASMCMD [+] > mount -a
    Syntax :   mount [--restrict] {[-a] | [-f] diskgroup[,diskgroup,...]}
   where           a : All 
                         f : Force