Which two of the following statements are true regarding early TCP/IP development? (Choose two.)
A . TCP/IP was the only network protocol suite available and was developed for internet work environments.
B . The focus was on solving the technical challenges of moving information quickly and reliably, not to secure it.
C . The model was developed as a flexible, fault-tolerant set of protocols.
D . The design and architecture of TCP/IP have not changed since its adoption in the early 1970s.
Answer: BC