Refer to the exhibit. Which configuration ensures that the Cisco Discovery Protocol packet update frequency sent from DSW1 to ALS1 is half of the default value?
A. DSW1(config)#cdp timer 90
B. DSW1(config-if)#cdp holdtime 60
C. DSW1(config)#cdp timer 30
D. DSW1(config)#cdp holdtime 90
E. DSW1(config-if)#cdp holdtime 30
F. DSW1(config-if)#cdp timer 60
