DANTE LEVEL 2 LATEST EXAMS SCRIPT QUESTIONS
AND ANSWERS SURE A+
✔✔If a multicast packet is sent across a network switch that does not use IGMP
snooping, what will happen?
- The multicast packet will propagate to every port on the network - it will behave
similarly to broadcast
- The multicast packet will not go anywhere. Without a management tool like IGMP
snooping, it can't be delivered
- The multicast packet works just like a unicast packet - the transmitter knows the
subscription list and includes multiple addresses in the packet. So, it will arrive exactly
where it is supposed to - and nowhere else - ✔✔The multicast packet will propagate to
every port on the network - it will behave similarly to broadcast
✔✔Audinate engineers first patented the idea of using Precision Time Protocol (PTP) to
synchronize audio/video devices. How does it work?
- The clock leader generates resolved clocks for all supported sample rates and frame
rates. As followers join, they request the clock(s) they need
- The clock leader distributes a date-time reference with incredible accuracy. Each
device then derrives the required sample rates and/or frame rates from this date-time
reference
- The clock leader monitors reports from all followers. If a follower gets too far out of
sync, the leader instructs that device to mute or place a blank frame and resync -
✔✔The clock leader distributes a date-time reference with incredible accuracy. Each
device then derrives the required sample rates and/or frame rates from this date-time
reference
, ✔✔Quality of Service (QoS) allows some traffic to be prioritized over others. When
would be a good time to consider engaging QoS? (Select Three.)
- Whenever 100 Mbps Dante devices are on the network
- When ports begin to approach saturation, say around 60%-80%
- When we have traffic a converged network, so there is something to de-prioritize
- When using unmanaged switches - ✔✔Whenever 100 Mbps Dante devices are on the
network
When ports begin to approach saturation, say around 60%-80%
When we have traffic a converged network, so there is something to de-prioritize
✔✔When should IGMP snooping (or other multicast management) be considered for a
Dante network?
- When a "fan out" condition is reported in Dante Controller
- When the estimated multicast bandwidth may approach a network port's saturation
point, impacting performance
- As soon as you make your first multicast stream. - ✔✔When the estimated multicast
bandwidth may approach a network port's saturation point, impacting performance
✔✔When commissioning or doing maintenance on system with Dante redundant
networks, which is a good practice?
- Name your Dante devices with their primary or secondary role, so we know which
device is the back-up
- Connect one network at a time. Before activating the second network, verify that the
devices are not set to switched mode
- Make sure your primary and secondary ports are in the same subnet. This way, it
won't matter if you mix up the primary and secondary ports - they become
interchangeable - ✔✔Connect one network at a time. Before activating the second
network, verify that the devices are not set to switched mode
✔✔A network that carries multiple, possibly unrelated data types (like internet, VoIP,
Dante, etc.) is:
- not possible
AND ANSWERS SURE A+
✔✔If a multicast packet is sent across a network switch that does not use IGMP
snooping, what will happen?
- The multicast packet will propagate to every port on the network - it will behave
similarly to broadcast
- The multicast packet will not go anywhere. Without a management tool like IGMP
snooping, it can't be delivered
- The multicast packet works just like a unicast packet - the transmitter knows the
subscription list and includes multiple addresses in the packet. So, it will arrive exactly
where it is supposed to - and nowhere else - ✔✔The multicast packet will propagate to
every port on the network - it will behave similarly to broadcast
✔✔Audinate engineers first patented the idea of using Precision Time Protocol (PTP) to
synchronize audio/video devices. How does it work?
- The clock leader generates resolved clocks for all supported sample rates and frame
rates. As followers join, they request the clock(s) they need
- The clock leader distributes a date-time reference with incredible accuracy. Each
device then derrives the required sample rates and/or frame rates from this date-time
reference
- The clock leader monitors reports from all followers. If a follower gets too far out of
sync, the leader instructs that device to mute or place a blank frame and resync -
✔✔The clock leader distributes a date-time reference with incredible accuracy. Each
device then derrives the required sample rates and/or frame rates from this date-time
reference
, ✔✔Quality of Service (QoS) allows some traffic to be prioritized over others. When
would be a good time to consider engaging QoS? (Select Three.)
- Whenever 100 Mbps Dante devices are on the network
- When ports begin to approach saturation, say around 60%-80%
- When we have traffic a converged network, so there is something to de-prioritize
- When using unmanaged switches - ✔✔Whenever 100 Mbps Dante devices are on the
network
When ports begin to approach saturation, say around 60%-80%
When we have traffic a converged network, so there is something to de-prioritize
✔✔When should IGMP snooping (or other multicast management) be considered for a
Dante network?
- When a "fan out" condition is reported in Dante Controller
- When the estimated multicast bandwidth may approach a network port's saturation
point, impacting performance
- As soon as you make your first multicast stream. - ✔✔When the estimated multicast
bandwidth may approach a network port's saturation point, impacting performance
✔✔When commissioning or doing maintenance on system with Dante redundant
networks, which is a good practice?
- Name your Dante devices with their primary or secondary role, so we know which
device is the back-up
- Connect one network at a time. Before activating the second network, verify that the
devices are not set to switched mode
- Make sure your primary and secondary ports are in the same subnet. This way, it
won't matter if you mix up the primary and secondary ports - they become
interchangeable - ✔✔Connect one network at a time. Before activating the second
network, verify that the devices are not set to switched mode
✔✔A network that carries multiple, possibly unrelated data types (like internet, VoIP,
Dante, etc.) is:
- not possible
