CTS AV Networking and AV over IP

Question 1

Which network quality-of-service (QoS) mechanism is most commonly used to prioritize AV over IP traffic on a managed Ethernet switch?

Accepted Answer

Differentiated Services Code Point (DSCP) marking

Answer

Spanning Tree Protocol (STP)

Answer

Network Address Translation (NAT)

Answer

Link Aggregation Control Protocol (LACP)

Question 2

What is the primary advantage of using VLANs when deploying an AV over IP system alongside a corporate IT network?

Accepted Answer

VLANs segment AV multicast traffic so it does not flood the corporate network

Answer

VLANs increase the physical bandwidth of each port

Answer

VLANs eliminate the need for a managed switch

Answer

VLANs automatically assign IP addresses to AV devices

Question 3

Dante, the popular AV over IP protocol, uses which transport method to carry audio across a network?

Accepted Answer

UDP/IP multicast and unicast packets

Answer

RS-232 serial over Ethernet tunneling

Answer

AES3 digital audio encoded in HDMI

Answer

Fiber Channel storage protocol

Question 4

An AV technician needs to ensure that network switches support AV over IP multicast without flooding all ports. Which switch feature should be enabled?

Accepted Answer

IGMP snooping

Answer

Port mirroring

Answer

MAC address filtering

Answer

Jumbo frames

Question 5

What does the term 'latency' mean in the context of AV over IP audio systems, and why is it critical?

Accepted Answer

The delay from audio input to output; excessive latency causes lip sync issues and performer disorientation

Answer

The bit depth of the audio signal; higher latency means higher fidelity

Answer

The number of audio channels the network can carry simultaneously

Answer

The maximum cable length between switches on a Dante network

Question 6

Which IP address range is reserved for IPv4 link-local addresses, commonly used by Dante devices when no DHCP server is present?

Accepted Answer

169.254.0.0 – 169.254.255.255

Answer

10.0.0.0 – 10.255.255.255

Answer

172.16.0.0 – 172.31.255.255

Answer

192.168.0.0 – 192.168.255.255