Dante Certification Final Exam Questions and Answers with complete solution

On a Dante network, there must be a different clock leader for each sample rate on the network. - Answer-False. One Clock Master will provide synchronization to all Dante devices, regardless of their individual sample-rates or frame rates.. An audio subscription (connection) can be established between two Dante interfaces operating at different bit depths. - Answer-True. Like most digital audio devices, Dante devices will usually be able to add missing bits or truncate extraneous bits to match the expected internal operation. The sample rate of an audio system dictates: - Answer-the audio resolution in time. According to the Nyquist Theorem, the sample rate must be at least twice the highest audio frequency to be captured. The bit depth of an audio system dictates: - Answer-the resolution of the audio signal's amplitude. A greater bit depth increases dynamic range. A Dante audio subscription (connection) can be established between two Dante interfaces operating at different audio sample rates - Answer-False. Each Dante interface can only operate at one sample rate at a time. If a sample rate converter is employed, it will sit behind the Dante network port. Dante audio is sent: - Answer-Uncompressed, bit-perfect. What audio sample rates are supported by Dante? - Answer-Dante supports most common sample rates from 44.1kHz to 192kHz. If we increase the sample rate of a device from 48KHz to 96KHz, what is the impact to the network? - Answer-A 96kHz subscription will require (roughly) twice as much bandwidth as a 48kHz subscription.Roughly how many channels of 24-bit, 48kHz audio can be carried on a 1 Gbps connection? - Answer- 512x512 A 1Gbps network switch can manage more Dante channels than a single 1Gbps link can. - Answer-True. A non-blocking network switch will be able to handle the total of all ports capacity at all times. STUDY GUIDE 2 - AnswerDante AV can support multiple codecs. However, the initial products will transport video in what format? - Answer-Compressed using a visually lossless JPEG2000 codec. The JPEG 2000 codec initially included in the Dante AV module is used in 65% of digital cinema rooms today. It is visually lossless, supporting both video and computer graphics (like spreadsheets and slide presentations). - Answer-True. The JPEG2000 offers sharp quality and intense colour definition with a visual accuracy adopted by most professional uses. Dante AV devices sends and receives audio uncompressed so it is completely compatible with Dante audio devices. - Answer-True. As audio and video are transported separately as independent essences, it is possible for a Dante AV device to send its audio channels to a Dante Audio device and vice-versa. Interlaced video draws all the odd lines, then all the even lines. This creates two "fields" for each frame. - Answer-TRUE. The interlaced signal contains two fields of a video frame captured consecutively. This enhances motion perception to the viewer, and reduces flicker. Dante AV devices have a scaler in it. What does the scaler affect? - Answer-The scaler can adapt screen resolution. (i.e. - it can scale a 4K source to 1080p for display) Which answer best describes the JPEG2000 encoding process? - Answer-There is a "visually lossless" impact on the first encoding, but JPEG 2000 can decode and encode over and over with no further loss.In Dante AV, with the JPEG2000 codec and a 1 Gbps connection, what resolution and frame rates are currently supported? - Answer-Up to 4K (4096 x 2160) at 60fps The JPEG 2000 codec commonly used in Dante AV processes video frames in groups. If a packet is corrupted, the picture will automatically recover when the current group of frames ends and the next keyframe arrives. It could be several frames. - Answer-False. The JPEG2000 codec is the best example of intraframe encoding, applying a compression algorithm to each frame captured individually, not built up from multiple frames, so they can be compressed and transmitted out quickly to reduce latency. On a Dante network, a single clock leader is established to manage all audio sample rates and video frame rates. - Answer-True. A single Clock Leader on the network is able to keep all followers synchronised, regardless of their sample-rates or frame-rates. What factors significantly affect the overall bandwidth demands of a compressed video flow? (Select all that apply.) - Answer--The video frame resolution (i.e. - 1080p vs 4K) -The chroma sampling (i.e. - 4:4:4 vs 4:2:0) -The frame rate (ie 24fps vs 60fps) STUDY GUIDE 3 - AnswerWhen using category cable, what type is recommended? - Answer-CAT5e or better is recommended. What IP addressing methods are available for Dante devices? (Select all that apply.) - Answer--Static IP Addressing -DHCP Dynamic Host Configuration Protocol -Link Local Which IP Range is not designated for use on a local network? - Answer-8.8.__.__