hostname Switch1 
interface Vlan10 
ip address 172.16.10.32 255.255.255.0 
no ip redirects 
standby 1 ip 172.16.10.110 
standby 1 timers 1 5 
standby 1 priority 130 
hostname Switch2 
interface Vlan10 
ip address 172.16.10.33 255.255.255.0 
no ip redirects 
standby 1 ip 172.16.10.110 
standby 1 timers 1 5 
standby 1 priority 120 
HSRP was implemented and configured on two switches while scheduled network maintenance was performed. 
After the two switches have finished rebooting， you notice via show commands that Switch2 is the HSRP active router. 
Which two items are most likely the cause of Switch1 not becoming the active router？ （）

A.The remaining secure MAC addresses will be dynamically learned， converted to sticky secure MAC addresses， and added to the running configuration.
B.Since a voice VLAN is configured in this example， port security should be set for a maximum of 2.
C.The sticky addresses will only be those manually configured MAC addresses enabled with the sticky keyword.
D.A security violation will restrict the number of addresses to a maximum of 10 addresses per access VLAN and voice VLAN. The port will be shut down if more than 10 devices per VLAN attempt to access the port.

A.No more than one secure MAC address should be set.
B.The default will be set.
C.The IP phone should use a dedicated port， therefore only one MAC address is needed per port.
D.No value is needed if the switchport priority extend command is configured. 
E.No more than two secure MAC addresses should be set.

A.protect （drop packets with unknown source addresses）
B.restrict （increment SecurityViolation counter）
C.shut down （access or trunk port）
D.transition （the access port to a trunking port）