Which two authentication types does OSPF support? (Choose two.)
A. plaintext
B. MD5
C. HMAC
D. AES 256
E. SHA-1
F. DES
Answer: A,B
Which two features do CoPP and CPPr use to protect the control plane? (Choose two.)
A. QoS
B. traffic classification
C. access lists
D. policy maps
E. class maps
F. Cisco Express Forwarding
Answer: A,B
