DANTE LEVEL 2 UPDATED EXAM SCRIPT QUESTIONS AND
ANSWERS SURE A+
✔✔Multicast - ✔✔One-to-many transmission that does not cross the router (contained
to LAN)
Transmissions will only go to destinations that need the communications
Better bandwidth management as channel count rises
✔✔IGMP Querier - ✔✔Keeps the master list of where all the Multicast subscriptions go
Only one switch should be assigned as the IGMP Querier
✔✔Which versions of IGMP Snooping are supported by Dante? - ✔✔IGMP Snooping v2
or v3
✔✔Latency for Unicast - ✔✔Greater than or equal to 0.25 msec
✔✔Latency for Multicast - ✔✔Greater than or equal to 1.00 msec
✔✔How many audio channels are sent in a Unicast package? - ✔✔4 channels (24-bit,
48kHz, 1msec latency)
✔✔How many audio channels are sent in a Multicast package? - ✔✔8 channels
✔✔How much bandwidth does a Unicast flow take up? - ✔✔5-6 Mbps
✔✔Dante Flows - ✔✔How Dante interfaces manage resources for subscriptions
✔✔Quality of Service (QoS) - ✔✔Establishes queues to prioritize some traffic over
others
The switch evaluates a "DSCP" tag
✔✔Which type of data is assigned the highest priority? - ✔✔Clocking
✔✔Which type of data is assigned medium priority? - ✔✔Audio / Video Data
✔✔Which type of data is assigned low priority? - ✔✔Control Data
✔✔Which type of data is assigned "best effort" priority? - ✔✔All data outside of
Clocking, Audio / Video, and Control Data (eg. Emails)
,✔✔DSCP Tag - ✔✔Values assigned to incoming packages to describe priority level
Different tag values can be associated with priority levels 1-4, with 4 being highest
priority and 1 being lowest priority
✔✔When should QoS be considered? - ✔✔When using a converged network with non-
Dante traffic so that the Dante traffic can be prioritized
When ports are becoming saturated
Helps 100Mbps ports to prioritize clocking and reduce jitter
✔✔Should QoS be set to Round Robin mode or Strict Priority mode? - ✔✔Strict Priority
Always serves the highest priority queue first
✔✔Time Division Multiplexing (TDM) - ✔✔One device follows the clock pulse of another
device
Works fine for two devices, but not for a full-scale system
✔✔What is the ideal means for clocking? - ✔✔Use an external clock and distribute that
to all devices
✔✔Video / Word Clock vs Time Code - ✔✔Video / Word Clock is like the pendulum of a
clock, giving the pace for processing frames or sample
Time Code is like the face of a clock, giving you a position on a timeline
✔✔Does Dante generate Video / Word Clock or Time Code? - ✔✔Dante only generates
Video / Word Clock
Dante does not generate Time Code because it is not a recorder, it is just a transport to
get information to your recorder
✔✔How does Automatic Clock Election work? - ✔✔Best Master Clock Algorithm
(BMCA) is used to assign a network clock master
Devices chasing an external clock are prioritized in the election process
The user can designate a device as a preferred leader to elevate it in the election
process
✔✔Are redundant networks set to separate subnets or the same subnet? - ✔✔Separate
subnets
, A broadcast message from one network should not reach the other network
✔✔What is the most common issue when trying to set up a redundant network? - ✔✔A
device is left in switched / daisy chain mode
✔✔Best practice for setting up redundant networks - ✔✔Set up one network, then the
other
✔✔How are presets saved? (file type) - ✔✔Presets are saved as XML text files
✔✔Dante Domain Manager (DDM) - ✔✔A toolbox for enhancing the Dante domain
network
Allows devices to be organized into separate domains
Enables ability to limit some users from some functions in the network
✔✔Dante multicast can be managed with IGMP Snooping v2 or v3:
- TRUE
- FALSE - ✔✔TRUE
✔✔Suppose a switch has eight (8) QoS queues on it. Which queue number would
typically have the highest priority?
-1
-5
-8
- 64 - ✔✔8
✔✔Match the distribution method with its definition. (Drag the descriptions at right onto
the appropriate method at left.)
- Multicast
- Broadcast
- Unicast
- From one to many (with IGMP)
- From one to all
- From one to one - ✔✔Multicast --> From one to many (with IGMP)
ANSWERS SURE A+
✔✔Multicast - ✔✔One-to-many transmission that does not cross the router (contained
to LAN)
Transmissions will only go to destinations that need the communications
Better bandwidth management as channel count rises
✔✔IGMP Querier - ✔✔Keeps the master list of where all the Multicast subscriptions go
Only one switch should be assigned as the IGMP Querier
✔✔Which versions of IGMP Snooping are supported by Dante? - ✔✔IGMP Snooping v2
or v3
✔✔Latency for Unicast - ✔✔Greater than or equal to 0.25 msec
✔✔Latency for Multicast - ✔✔Greater than or equal to 1.00 msec
✔✔How many audio channels are sent in a Unicast package? - ✔✔4 channels (24-bit,
48kHz, 1msec latency)
✔✔How many audio channels are sent in a Multicast package? - ✔✔8 channels
✔✔How much bandwidth does a Unicast flow take up? - ✔✔5-6 Mbps
✔✔Dante Flows - ✔✔How Dante interfaces manage resources for subscriptions
✔✔Quality of Service (QoS) - ✔✔Establishes queues to prioritize some traffic over
others
The switch evaluates a "DSCP" tag
✔✔Which type of data is assigned the highest priority? - ✔✔Clocking
✔✔Which type of data is assigned medium priority? - ✔✔Audio / Video Data
✔✔Which type of data is assigned low priority? - ✔✔Control Data
✔✔Which type of data is assigned "best effort" priority? - ✔✔All data outside of
Clocking, Audio / Video, and Control Data (eg. Emails)
,✔✔DSCP Tag - ✔✔Values assigned to incoming packages to describe priority level
Different tag values can be associated with priority levels 1-4, with 4 being highest
priority and 1 being lowest priority
✔✔When should QoS be considered? - ✔✔When using a converged network with non-
Dante traffic so that the Dante traffic can be prioritized
When ports are becoming saturated
Helps 100Mbps ports to prioritize clocking and reduce jitter
✔✔Should QoS be set to Round Robin mode or Strict Priority mode? - ✔✔Strict Priority
Always serves the highest priority queue first
✔✔Time Division Multiplexing (TDM) - ✔✔One device follows the clock pulse of another
device
Works fine for two devices, but not for a full-scale system
✔✔What is the ideal means for clocking? - ✔✔Use an external clock and distribute that
to all devices
✔✔Video / Word Clock vs Time Code - ✔✔Video / Word Clock is like the pendulum of a
clock, giving the pace for processing frames or sample
Time Code is like the face of a clock, giving you a position on a timeline
✔✔Does Dante generate Video / Word Clock or Time Code? - ✔✔Dante only generates
Video / Word Clock
Dante does not generate Time Code because it is not a recorder, it is just a transport to
get information to your recorder
✔✔How does Automatic Clock Election work? - ✔✔Best Master Clock Algorithm
(BMCA) is used to assign a network clock master
Devices chasing an external clock are prioritized in the election process
The user can designate a device as a preferred leader to elevate it in the election
process
✔✔Are redundant networks set to separate subnets or the same subnet? - ✔✔Separate
subnets
, A broadcast message from one network should not reach the other network
✔✔What is the most common issue when trying to set up a redundant network? - ✔✔A
device is left in switched / daisy chain mode
✔✔Best practice for setting up redundant networks - ✔✔Set up one network, then the
other
✔✔How are presets saved? (file type) - ✔✔Presets are saved as XML text files
✔✔Dante Domain Manager (DDM) - ✔✔A toolbox for enhancing the Dante domain
network
Allows devices to be organized into separate domains
Enables ability to limit some users from some functions in the network
✔✔Dante multicast can be managed with IGMP Snooping v2 or v3:
- TRUE
- FALSE - ✔✔TRUE
✔✔Suppose a switch has eight (8) QoS queues on it. Which queue number would
typically have the highest priority?
-1
-5
-8
- 64 - ✔✔8
✔✔Match the distribution method with its definition. (Drag the descriptions at right onto
the appropriate method at left.)
- Multicast
- Broadcast
- Unicast
- From one to many (with IGMP)
- From one to all
- From one to one - ✔✔Multicast --> From one to many (with IGMP)
