Network Basics
Dante
Networks Advanced
100

What does QoS stand for?

Quality of service

100

One device transmits all 32 channels in multicast to 6 other devices.

How many Tx flows are used?

4

Ultimo chips issue with old firmware accepting flows of more than 8 channels in multicast.

100

What is a small plug-in module that lets you connect different types of cables to a network switch?

SFP, SFP+, SFP28, QSFP+, QSFP28

200

The binary value 1101 is what value in decimal?

13

200

When a Dante device loses clock, what is the impact on the audio from this device?

Mute

200

What is the protocol that helps manage who gets multicast traffic on an L2 network, by asking devices if they still want to receive it?

IGMP snooping with a querier

300

What subnet mask is used by the Link Local Protocol/APIPA?

255.255.0.0 also written as /16

300

Approximately how many Dante devices can DDM manage?

Up to 1000

300

Trunks are carrying data from multiple VLANs. How do they differentiate between the different packets?

Using VLAN Tagging

400

As a rule of thumb, how much latency do we recommend to calculate per switch hop?

0.1ms

400

For clocking packets, which is more important to keep tight: jitter or latency?

And for media packets, which is more important to keep tight: jitter or latency?

jitter for clocking 

latency for media packets

400

A device is configured as 192.168.1.17/24. How will it reach 192.168.24.113/24? (there are 2 things to consider here)

With a Router via unicast

500

How is the network protocol called, that helps to prevent network loops.

STP (Spanning Tree Protocol) - nowadays usually RSTP

500

How much media streaming traffic(audio or video) is running thru DDM?

Zero

500

How many usable IP addresses are in the subnet 192.168.1.212/25 (255.255.255.128)

128 available but only 126 usable addresses