Which two methods can be used to perform IPSec peer authentication? (Choose two.)

Can you tell me which one of the following platforms has the highest IPSec throughput and can
support the highest number of tunnels?

Which one of the following Cisco Security Management products is able to perform (syslog) events
normalization?

Open Shortest Path First (OSPF) is a dynamic routing protocol for use in Internet Protocol (IP)
networks. An OSPF router on the network is running at an abnormally high CPU rate. By use of
different OSPF debug commands on Router, the network administrator determines that router is
receiving many OSPF link state packets from an unknown OSPF neighbor, thus forcing many
OSPF path recalculations and affecting router’s CPU usage. Which OSPF configuration should the
administrator enable to prevent this kind of attack on the Router?