Which two statements are true about IS-IS levels? (Choose two.)

Question

Options

• ALevel 2 systems do not advertise Level 2 routes into a Level area by default.
• BLevel 2 systems must use the loopback address as a part of the ISO network address.
• CLevel 1 system only from adjacencies with other systems that have different area IDs.
• DLevel 1 systems use a default route to reach AS external routes located in other areas.

• A
  10% (3)
• B
  3% (1)
• C
  3% (1)
• D
  83% (25)

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