300-420 · Question #45
Which of the following are valid methods of VRRP authentication? (Choose three.)
The correct answer is C. No authentication E. Plain text authentication F. MD5. Valid VRRP authentication methods include no authentication, plain text, and MD5 authentication, each offering a different level of security for VRRP message exchanges.
Question
Which of the following are valid methods of VRRP authentication? (Choose three.)
Options
- ASHA-124
- BSHA-254
- CNo authentication
- DWAP
- EPlain text authentication
- FMD5
How the community answered
(29 responses)- A3% (1)
- B3% (1)
- C86% (25)
- D7% (2)
Why each option
Valid VRRP authentication methods include no authentication, plain text, and MD5 authentication, each offering a different level of security for VRRP message exchanges.
SHA-124 is not a standard or recognized hashing algorithm used for VRRP authentication.
SHA-254 is not a standard or recognized hashing algorithm used for VRRP authentication; common SHA variants include SHA-256 and SHA-512.
VRRP can be configured with no authentication, allowing messages to be exchanged without validation, though this is the least secure option.
WAP (Wireless Application Protocol) is a protocol for mobile wireless networks and is unrelated to VRRP authentication mechanisms.
Plain text authentication is a valid but highly insecure method where the password is sent unencrypted in VRRP advertisements.
MD5 (Message Digest 5) authentication provides a more secure method by hashing the password, verifying message integrity and sender authenticity without sending the password in clear text.
Concept tested: VRRP authentication methods
Source: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipapp_vrrp/configuration/xe-16/iar-xe-16-book/iar-vrrp.html
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