Which of the following descriptions about LSA and LSDB are wrong? (Multiple choice)

The correct answer is B. The combination of LS type and Link StateID jointly identifies an LSA D. The LSage field in the LSA header indicates the remaining lifetime of the LSA. See the full explanation below for the reasoning.

Question

Which of the following descriptions about LSA and LSDB are wrong? (Multiple choice)

Options

AThe LS sequence number field is used to detect old and duplicate LSAS
BThe combination of LS type and Link StateID jointly identifies an LSA
CLSA is not resident until in LSDB
DThe LSage field in the LSA header indicates the remaining lifetime of the LSA

How the community answered

(29 responses)

A
3% (1)
B
86% (25)
C
10% (3)

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