A network administrator wants to configure Open Shortest Path (OSPF) MD5 authentication on VLAN 100 on
an HP ProVision switch. The administrator has created a global MD5 key chain with an ID and key string that
matches the neighbor’s. which additional step must the administrator complete to accomplish this?
A.
Set OSPF authentication to MD5 mode in the OSPF area settings
B.
Activate MD5 key rotation globally
C.
Enable MD5 key rotation globally
D.
Assign this MD5 key to OSPF VLAN 100
Explanation:
Authentication-key: OSPF supports three methods of authentication for each interface—none, simple
password, and MD5. Only one method of authentication can be active on an interface at a time.
The MD5 method of authentication requires you to configure a key ID and an MD5 Key
Chapter 8, Configuring OSPF
http://www.hp.com/rnd/support/manuals/pdf/release_06628_07110/Bk2_Ch8_OSPF.pdf