Which two options are modes of operation for the 10-port SFP+ line card? (Choose two.)

Question

Options

• A10 x 10G muxponder client for 100G line card
• Bwire speed encryption
• C5 x 10G transponder
• Ddispersion compensation

• A
  90% (36)
• B
  3% (1)
• D
  8% (3)

Explanation

Options A and C describe the two functional operating modes of a 10-port SFP+ line card found on optical networking platforms like the Cisco NCS series. In muxponder mode (A), all 10 x 10G client ports are aggregated and multiplexed onto a single 100G line-side wavelength - many-to-one. In transponder mode (C), the card splits into 5 independent 10G transponder pairs, each converting a client-side 10G signal to a line-side optical signal - one-to-one per pair.

Option B (wire speed encryption) is a security feature that may exist on certain platforms but describes a capability, not a line card operating mode. Option D (dispersion compensation) is an optical physical-layer technique using DCMs (Dispersion Compensation Modules) to correct signal degradation over fiber - again, not a line card mode.

Memory tip: Think "M for Many, T for Two" - Muxponder combines many 10G clients into one 100G pipe, while Transponder works in pairs (5 pairs = 5 transponders from 10 ports). Distractors B and D are both real optical networking concepts, but they describe features and physical phenomena, not card operating modes - if the answer doesn't describe how the card routes/converts traffic, eliminate it.

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