Which two OSPF design considerations should you implement to support the eventual growth of a network, so that CPU and memory are unaffected by the size and complexity of the link-state database in a large service provider network? (Choose two.)
A . Turn on route dampening.
B . Create network summaries.
C . Turn on the Incremental SPF feature.
D . Add more memory.
E . Turn on packet pacing.
F . Add redundancy between critical locations.
Answer: CE