Cisco
350-030 · Question #172
When compressing RTP traffic across low-speed links using the cRTP feature, the 40 bytes of header information (12-byte RTP header, 8-byte UDP header, and 20-byte IP header) can be reduced to either…
The correct answer is C. The 4-byte cRTP packet contains a UDP Checksum. See the full explanation below for the reasoning.
Question
When compressing RTP traffic across low-speed links using the cRTP feature, the 40 bytes of header information (12-byte RTP header, 8-byte UDP header, and 20-byte IP header) can be reduced to either 2 or 4 bytes. What is the primary difference between the 2-byte cRTP packet and the 4-byte cRTP packet?
Options
- AThe 4-byte cRTP packet contains an additional field containing the full destination IP address.
- BThe 4-byte cRTP packet contains an additional field containing the full source IP address.
- CThe 4-byte cRTP packet contains a UDP Checksum.
- DThe 4-byte header has 2 bytes of padding in order to align the packet on a word boundary.
- EThe 4-byte header is used for larger payload RTP packets (such as 30 ms samples, as opposed to
How the community answered
(26 responses)- B4% (1)
- C81% (21)
- D4% (1)
- E12% (3)
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