350-029 · Question #27
Which three statements about NetFlow are true? (Choose three)
The correct answer is A. NetFlow records unidirectional IP traffic flow. B. NetFlow records MPLS frame flow. E. NetFlow records subinterface information of traffic flow. Normal response mode allows operation over half-duplex communication links, as long as the primary is aware that it may not transmit when it has given permission to a secondary. Asynchronous response mode is an HDLC addition[1] for use over full-duplex links. While retaining…
Question
Which three statements about NetFlow are true? (Choose three)
Options
- ANetFlow records unidirectional IP traffic flow.
- BNetFlow records MPLS frame flow.
- CNetFlow expert is only over TCP.
- DNetFlow records is only over UDP.
- ENetFlow records subinterface information of traffic flow.
How the community answered
(50 responses)- A72% (36)
- C10% (5)
- D18% (9)
Explanation
Normal response mode allows operation over half-duplex communication links, as long as the primary is aware that it may not transmit when it has given permission to a secondary. Asynchronous response mode is an HDLC addition[1] for use over full-duplex links. While retaining the primary/secondary distinction, it allows the secondary to transmit at any time. Asynchronous balanced mode added the concept of a combined terminal which can act as both a primary and a secondary. There are some subtleties about this mode of operation; while many features of the protocol do not care whether they are in a command or response frame, some do, and the address field of a received frame must be examined to determine whether it contains a command (the address received is ours) or a response (the address received is that of the other
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