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Dante Level 3 Exam Solved 100% Correct!!
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Dante Level 3 Exam Solved 100% Correct!! SCENARIO: You have a Dante system that seems to be functioning correctly, there are no external word clocks configured, no preferred master configured, but there are still a number of devices that report they are losing sync occasionally. What steps would...

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  • November 25, 2023
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  • 2023/2024
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  • dante level 3 exam solved 100 correct scenario

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Dante Level 3 Exam Solved 100% Correct!!
SCENARIO: You have a Dante system that seems to be functioning correctly,
there are no external word clocks configured, no preferred master configured, but
there are still a number of devices that report they are losing sync occasionally.
What steps would you take to find the root cause of the problem?
-You suspect that multicast traffic is not able to traverse the network in both directions
(i.e. from master to all slaves, and from all slaves to the master). To check if this is the
case you enable unicast delay requests on the slaves, then monitor the clock status
histogram for evidence of disruption in PTP. When this resolves the problem you
suspect that ACLs blocking multicast on UDP ports 319 and 320 in a direction from the
slave to the master is to blame.

-If IGMP Snooping is enabled, you test the system with no audio and IGMP Snooping
turned off. When this resolves the problem you suspect that IGMP snooping has been
interfering with the distribution of multicast traffic between the slaves and the master.
You enable unicast delay requests on all slaves to reduce the amount of multicast traffic
that the switches need to track via IGMP.
Switches look at ________
Destination MAC addresses to forward frames
Things to consider when building a network from scratch:
Sizing links for worst case traffic loads
Dante automatically changes a unicast flow to a multicast flow when necessary.
False
Dante uses ______ DSCP tags.
4
Apart from separate cabling, a ________ can be used to separate broadcast
domains.
VLAN
In a [________] transaction bandwidth is only consumed on the [________] path
between a receiver and a transmitter.
unicast, shortest
A session is ________
an instance when a connection between two devices is created to transfer data
A Dante device can have an unlimited number of receive flows.
False
How do you find out how many transmit flows you are using?
Tx tab in Dante controller
An ARP whohas message is ________
Broadcast
Giving an external word-clock to a Dante device replaces its internal clock.
False
IGMP snooping listens for reports to [________] messages in order to restrict
[________] traffic.
IGMP query, multicast
ARP tables are held in nodes

, True
Match these layer numbers to the corresponding layer names in the OSI model:
Layer 7 - Application
Layer 6 - Presentation
Layer 5 - Session
Layer 4 - Transport
Layer 3 - Network
Layer 2 - Datalink
Layer 1 - Physical
Dante devices have a set number of flows.
True
A Dante receiving device has a latency setting of 1ms. A Dante transmitting
device has a latency setting of 250µs. If a subscription is created between these
units, when will the audio playout of the receiving device?
1 milli seconds
Sync traffic is the most time critical traffic in a Dante network and is tagged with
DSCP ______.
56
How many channels are contained in a Multicast Flow?
Up to 8
The BEST way to bring up a redundant network online is:
Bring the primary network online first, ensure all devices appear functional, check that
devices are configured to operate in redundant mode, then bring the secondary network
online.
What steps need to be taken in order to segment a broadcast domain? (select all
that apply)
-Put the same type of devices into a VLAN
-Define VLAN as an IP subnet
SCENARIO: You notice that audio on your Dante network is not working as it
should, but only when multicast transmission is configured for audio. Your audio
network is on a converged enterprise network. After testing your Dante network,
you conclude that a firewall is dropping your multicast packets. What port would
you ask the IT administrator to unblock?
UDP 4321
A unicast flow is created by a transmitter alone.
False
Switches can have multiple MAC addresses mapped to an interface in their MAC
address table
True
An application has a port/socket address which pertains to a transport protocol ,
which in turn is encapsulated into a packet, which has a/an [________] , which is
then encapsulated into an address frame which has a/an [________] .
IP address, MAC address
Requirements of Dante are completely satisfied by a COTS infrastructure
True

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