Which of the Following Statements Regarding IS-IS Authentication Are True

question 229

Multiple Choice

Which of the following statements regarding IS-IS authentication are true?

• A) After area authentication is configured on a router, IIH PDUs, SNPs, and LSPs sent by the router must carry an authentication TLV.
• B) Interface authentication can authenticate Level-1 and Level-2 Hello PDUs.
• C) After interface authentication is configured on a router, IIH PDUs sent by the router must carry an authentication TLV.
• D) Two routers can establish a neighbor relationship when they are configured with area authentication and interface authentication, respectively, and are configured with the same authentication password.

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