After the cutover is completed, which items generally need to be checked? (Multiple choice)

Which of the following aspects should be considered in the cutover risk assessment? (Multiple choice)

Which LSA in OSPFv3 can be flooded within an area?

As shown in the figure, a sham link is established between PE1 and PE2 through the LoopBackD interface. CE2 can learn the route to the 192.168.1.0/24 network segment (the direct route on CE1) through the sham link and backdoor link. If you keep the default configuration, the cost value of the route from CE2 to the 192.168.1.0/24 network segment should be (). (Please fill in the Arabic numerals directly, without symbols)

Which of the following are static information coking analysis? (Multiple choice)