Which NCS 4016 line card cannot be shared with the NCS 4009?

Question

Options

• ADWDM line card
• Broute processor
• COTN line card
• Dfabric card

• A
  3% (1)
• C
  3% (1)
• D
  95% (36)

Explanation

Fabric cards (D) are chassis-specific components - the NCS 4016's fabric card is physically and architecturally designed for its 16-slot backplane, while the NCS 4009 uses a different fabric card suited to its 9-slot chassis. Because the switching fabric must match the exact slot count and backplane interconnect of the chassis, the two platforms cannot swap fabric cards.

Why the distractors are wrong:

• (A) DWDM line cards are hardware-agnostic optical cards that operate independently of chassis size and are supported across both platforms.
• (B) Route processors share a common design across the NCS 4000 series, making them interoperable between the 4009 and 4016.
• (C) OTN line cards similarly plug into the common line card slots present on both chassis and are fully shared.

Memory tip: Think "Fabric = Frame." The fabric card is married to the frame (chassis) it was built for - you can't transplant a heart from one body to another. Everything else (line cards, RPs) is like interchangeable organs that work in either body.

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