DANTE CERTIFICATION LEVEL 2 UPDATED
EXAM SCRIPT WITH ANSWER KEY
◉ Link Aggregation Group (LAG)
Answer: Allows trunk lines to be combined for more bandwidth
◉ How can trunk lines contact multiple VLANs?
Answer: By "tagging" packets
It its best practice to have one untagged VLAN, the rest being tagged
◉ TCP
Answer: Like "signature required" mail, the sender gets a
notification that the message was received
Appropriate when communications are likely to be interrupted,
when missing a packet would invalidate the date, or when timely
delivery is a convenience rather than a necessity
◉ UDP
Answer: Like "first class" mail, a message is put on the network and
assumed to be delivered successfully - no notification
,Appropriate when communications are not likely to be interrupted
(LAN), when a missing packet in sequences can be overcome (error
correction), or when timely delivery and/or low overhead is a
priority
UDP is ideal for real-time networks
◉ Potential problems with TCP
Answer: Creates additional overhead from confirmation messages,
increasing the likelihood of problems (not ideal for live Dante
systems)
◉ When Dante sends media across a network, which can be used?
(select two)
- Unicast
- Multicast
- Broadcast
Answer: Unicast or Multicast
,◉ IGMP Snooping
Answer: A tool for managing multicast traffic
Without IGMP Snooping, Multicast behaves like Broadcast
◉ Unicast
Answer: One-to-one transmission that can cross a router for
transmission
Signal must be duplicated to send to multiple destinations, which
can cause strain on transmitters and switches
Best latency performance
◉ Broadcast
Answer: One-to-all transmission that does not cross the router
(contained to LAN)
Generally used for locating devices (DHCP) rather than a means for
communication
◉ Multicast
, Answer: 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
Answer: 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?
Answer: IGMP Snooping v2 or v3
◉ Latency for Unicast
Answer: Greater than or equal to 0.25 msec
◉ Latency for Multicast
Answer: Greater than or equal to 1.00 msec
EXAM SCRIPT WITH ANSWER KEY
◉ Link Aggregation Group (LAG)
Answer: Allows trunk lines to be combined for more bandwidth
◉ How can trunk lines contact multiple VLANs?
Answer: By "tagging" packets
It its best practice to have one untagged VLAN, the rest being tagged
◉ TCP
Answer: Like "signature required" mail, the sender gets a
notification that the message was received
Appropriate when communications are likely to be interrupted,
when missing a packet would invalidate the date, or when timely
delivery is a convenience rather than a necessity
◉ UDP
Answer: Like "first class" mail, a message is put on the network and
assumed to be delivered successfully - no notification
,Appropriate when communications are not likely to be interrupted
(LAN), when a missing packet in sequences can be overcome (error
correction), or when timely delivery and/or low overhead is a
priority
UDP is ideal for real-time networks
◉ Potential problems with TCP
Answer: Creates additional overhead from confirmation messages,
increasing the likelihood of problems (not ideal for live Dante
systems)
◉ When Dante sends media across a network, which can be used?
(select two)
- Unicast
- Multicast
- Broadcast
Answer: Unicast or Multicast
,◉ IGMP Snooping
Answer: A tool for managing multicast traffic
Without IGMP Snooping, Multicast behaves like Broadcast
◉ Unicast
Answer: One-to-one transmission that can cross a router for
transmission
Signal must be duplicated to send to multiple destinations, which
can cause strain on transmitters and switches
Best latency performance
◉ Broadcast
Answer: One-to-all transmission that does not cross the router
(contained to LAN)
Generally used for locating devices (DHCP) rather than a means for
communication
◉ Multicast
, Answer: 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
Answer: 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?
Answer: IGMP Snooping v2 or v3
◉ Latency for Unicast
Answer: Greater than or equal to 0.25 msec
◉ Latency for Multicast
Answer: Greater than or equal to 1.00 msec
