Which of the following describes the Nokia 7750 SR Input/Output Module (IOM)?

Which of the following describes the Nokia 7750 SR Input/Output Module (IOM)?
A . Small optical module available in a variety of formats.
B . Contains a CPU for managing the forwarding hardware in each flexible fast path.
C . Converts traffic from an external standard format to an internal format.
D . Contains the CPU that runs the routing protocol software as well as the switch fabric.

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Answer: B