Huawei
H12-821_V1.0 · Question #625
H12-821_V1.0 Question #625: Real Exam Question with Answer & Explanation
The correct answer is B. The OSPF Hello packet authentication process is completed by exchanging Hello packets D. If two OSPF devices belong to the same router, if Area 0 uses MD5 authentication, other areas must also use MD5 authentication, but the authentication keys in different areas can be different. See the full explanation below for the reasoning.
Question
Which of the following descriptions about OSPF packet authentication is wrong? (Multiple choice)
Options
- AThe authentication modes supported by Huawei routers can be divided into Null, Simple-, MD5, and HMAC-MD5 according to different encryption algorithms. Some devices also support HMAC-SHA256.
- BThe OSPF Hello packet authentication process is completed by exchanging Hello packets
- CHuawei routers support two authentication methods: area authentication and interface authentication
- DIf two OSPF devices belong to the same router, if Area 0 uses MD5 authentication, other areas must also use MD5 authentication, but the authentication keys in different areas can be different
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