Dante Level 2 Exam Questions with 100% Correct
Answers.
Local Area Network (LAN) - ANS Contacted directly through a Dante switch
Wide Area Network (WAN) - ANS Connects the network across a wider geographical
area. Is reached through a router (gateway)
What kind of notation do IP Addresses use? - ANS Dotted-Quad or Dot Decimal
Notation
Subnet - ANS A group of local IP addresses
Subnet Mask - ANS Helps determine what IP addresses are in our subnet
Should be an unbroken string of binary ones followed by zeros
A subnet mask of 255.255.255.0 can be abbreviated as "/24"
What is the range of numbers for IP addresses in dotted-quad form? - ANS 0-255
What is the range of numbers we can actually use when assigning IP addresses in
dotted-quad form? - ANS 1-254
Domain Name Service (DNS) - ANS Translates domain names into IP addresses
If multiples are on a list, the first one to return an answer is followed
Subnets reserved for use on a local network - ANS 192 . 168 . ___ . ___
10 . ___ . ___ . ___
172 . 16-31 . ___ . ___
169 . 254 . ___ . ___
What are the two primary DHCP settings? - ANS IP Range (a.k.a. DHCP pool) and
Lease Time (e.g. 24 hours)
What is the priority option for automatic IP addressing for Dante devices? - ANS DHCP
Server
If no DHCP server is found for automatic IP addressing, what is the back up plan? -
ANS Link Local
How does Link Local work? - ANS Assigns each device a random address in 169 . 254 .
___ . ___
,Sends an ARP request to ensure that an address is available
Once Link Local address is set, we continue looking for DHCP Service
VLAN - ANS Strategically isolates LANs on the same switch
Non-Blocking Architecture - ANS The switch is not the bandwidth bottleneck in the
network
Your only restriction is your individual port speed
Spanning Tree Protocol (STP) - ANS A protocol that disables a second trunk line
between the same two switches to prevent a Broadcast Storm
Broadcast Storm - ANS An endless loop of broadcast information. Like microphone
feedback but for broadcast
Link Aggregation Group (LAG) - ANS Allows trunk lines to be combined for more
bandwidth
How can trunk lines contact multiple VLANs? - ANS By "tagging" packets
It its best practice to have one untagged VLAN, the rest being tagged
TCP - ANS 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 - ANS 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 - ANS 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 - ANS Unicast or Multicast
IGMP Snooping - ANS A tool for managing multicast traffic
Without IGMP Snooping, Multicast behaves like Broadcast
Unicast - ANS 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 - ANS 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 - ANS 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 - ANS 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? - ANS IGMP Snooping v2
or v3
Latency for Unicast - ANS Greater than or equal to 0.25 msec
Latency for Multicast - ANS Greater than or equal to 1.00 msec
How many audio channels are sent in a Unicast package? - ANS 4 channels (24-bit,
48kHz, 1msec latency)
How many audio channels are sent in a Multicast package? - ANS 8 channels
How much bandwidth does a Unicast flow take up? - ANS 5-6 Mbps
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