In a complementary pair of methods, one method "____" the actions of the other.

A vCenter Operations Manager 5.7 environment is upgraded to vRealize Operations. After the upgrade, the analytics services fail to start. Which three steps must be taken to resolve the problem? (Choose three.)

A. Take the vRealize Operations cluster offline. B. Delete the activity persistence files. C. Bring the cluster back online. D. Remove any unresponsive nodes. E. Stop the CaSA service.

The ______ attacks the ability of a network server to respond to TCP connection requests by overflowing the tables used to manage such connections.

A. DNS amplification attack B. SYN spoofing attack C. basic flooding attack D. poison packet attack