Which of the following statements regarding LSDB synchronization on an IS-IS broadcast network is true?

Question

Options

• AR2 functions as the DIS and sends Hello PDUs at an interval three times that of non-DIS routers.
• BR2 functions as the DIS and does not receive PSNPs from other routers.
• CR2 functions as the DIS and periodically sends CSNPs.
• DR1 and R3 maintain the LSDB consistency by sending PSNPs periodically.

• A
  6% (4)
• B
  3% (2)
• C
  81% (54)
• D
  10% (7)

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