CBT Broadcast Networking & IP Systems 3

Question 1

What does the acronym SDN stand for in the context of modern broadcast facilities, and what is its benefit?

Accepted Answer

Software-Defined Networking — allows network configuration and routing via software rather than manual hardware configuration

Answer

Synchronized Data Network — ensures all data arrives in order

Answer

Standard Delivery Node — a fixed signal routing point

Answer

Signal Distribution Node — a hardware hub for routing video

Question 2

Which Quality of Service (QoS) mechanism is most critical for prioritizing time-sensitive media traffic in a broadcast IP network?

Accepted Answer

DSCP (Differentiated Services Code Point) marking

Answer

NAT (Network Address Translation)

Answer

DNS (Domain Name System) priority queuing

Answer

MAC address filtering

Question 3

In broadcast IP systems, what is the significance of the 'buffer delay' parameter when configuring an RTP receiver?

Accepted Answer

It defines the amount of time the receiver waits to accommodate network jitter before presenting the stream

Answer

It sets the maximum file size for recorded streams

Answer

It controls the encoding bitrate of incoming video

Answer

It determines how many IP addresses the receiver can handle simultaneously

Question 4

What is the purpose of the AMWA (Advanced Media Workflow Association) IS-05 specification?

Accepted Answer

Providing a RESTful API for making and breaking connections between NMOS-compatible devices

Answer

Defining compressed video codec parameters for IP transport

Answer

Specifying power requirements for broadcast network switches

Answer

Defining the color space metadata transported over IP

Question 5

Which physical layer technology is most commonly used for 10GbE and 25GbE links within a broadcast IP facility's core infrastructure?

Accepted Answer

Single-mode fiber optic cabling

Answer

Cat5e copper cabling

Answer

Coaxial cable with BNC connectors

Answer

Cat6a copper cabling

Question 6

In IP broadcast, what is the key difference between a 'sender' and a 'receiver' as defined by SMPTE ST 2110?

Accepted Answer

A sender is any device that originates an RTP media stream; a receiver is any device that consumes that stream

Answer

A sender encodes video; a receiver decodes it

Answer

A sender is always a camera; a receiver is always a monitor

Answer

A sender uses TCP; a receiver uses UDP

Question 7

What is the primary reason broadcast IP networks prefer UDP over TCP for real-time media transport?

Accepted Answer

UDP has lower overhead and avoids TCP's retransmission delays, which are unacceptable in live broadcast

Answer

UDP provides built-in encryption while TCP does not

Answer

UDP guarantees packet delivery while TCP does not

Answer

UDP supports multicast while TCP is unicast only