What does the attach bit in an IS-IS PDU indicate?

Question

Options

• AThe L1/L2 router is exporting a default route into the area.
• BThe L1/L2 router has reachability information to another IS-IS area.
• CThe L1/L2 router is sending information from Level 2 towards Level 1.
• DThe L1/L2 router is sending information from Level 1 towards Level 2.

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

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