EXTRON AV STUDY GUIDE
QUESTIONS AND CORRECT
ANSWERS
Which of the following is a measurement, in decibels (dB), of the amount of any reduction in signal
strength, or loss, due to the natural consequence of transmission over long distance?
ANSW✅✅Attenuation
Which of the following contributes to the impedance of a cable? ANSW✅✅All of the above
Which of the following cable shielding methods has many fine strands of material woven together
that encompasses the insulation of the cable? ANSW✅✅Braided Shield
Which of the following core conductors is made of one single wire and generally provides excellent
conductivity? ANSW✅✅SOLID
Which one of the following phases of a control project do the AV installers and the control system
designers coordinate to test the functionality of the AV system, both hardware and software?
ANSW✅✅Commissioning
Which of the following is the delivery of content in real-time as events happen? ANSW✅✅Live
Content
Which of the following streaming functions analyzes, de-compresses, and reconstructs the received
packets, and delivers the signal to the end-point? ANSW✅✅Decode
Which of the following types of compression refers to the loss of data when an approximation of the
original image is reconstructed? ANSW✅✅Lossy compression
Which of the following is a device or program with technologies that compresses a signal for more
efficient transmission, then decompresses it for viewing or editing? ANSW✅✅codec
Which of the following describes the amount of delay, or the time it takes for video and audio to be
delivered from the source to the destination? ANSW✅✅Latency
, Which one of the following is a method of transporting media content over a network as a steady,
continuous flow, allowing playback to proceed while subsequent data is received?
ANSW✅✅Streaming
An acceptable viewing experience for consumer purposes may not meet the needs of professional
applications. ANSW✅✅TRUE
Which one of the following works to reverse the first two phases of the streaming process,
reconstruct the signal, and deliver it to the end-point? ANSW✅✅Decode
Which one of the following compression methods is referred to as Intra-Frame compression?
ANSW✅✅Spatial Compression
Which one of the following defines addressing methods and structures for datagram encapsulation
that allows the delivery of packets from a source to a destination? ANSW✅✅IP
Which one of the following is in different geographical locations and provides communication to
smaller networks using routers and switches? ANSW✅✅WAN
Which one of the following is a set of rules, procedures, and formats, defined in seven levels, or
layers? ANSW✅✅OSI Refrence Model
Which one of the following is a connectionless protocol used in real-time streaming applications
where best effort delivery is acceptable and the network devices and applications manage data flow
control and errors? ANSW✅✅UDP
Which one of the following uses one-to-one transmission to deliver video from one point in the
network to another? ANSW✅✅Unicast
Which one of the following is the set of rules for transferring text, graphic images, sound, video, and
other multimedia files on the World Wide Web? ANSW✅✅Hypertext Transfer Protocol - HTTP
Which of the following is NOT a user interface? ANSW✅✅Encoder
QUESTIONS AND CORRECT
ANSWERS
Which of the following is a measurement, in decibels (dB), of the amount of any reduction in signal
strength, or loss, due to the natural consequence of transmission over long distance?
ANSW✅✅Attenuation
Which of the following contributes to the impedance of a cable? ANSW✅✅All of the above
Which of the following cable shielding methods has many fine strands of material woven together
that encompasses the insulation of the cable? ANSW✅✅Braided Shield
Which of the following core conductors is made of one single wire and generally provides excellent
conductivity? ANSW✅✅SOLID
Which one of the following phases of a control project do the AV installers and the control system
designers coordinate to test the functionality of the AV system, both hardware and software?
ANSW✅✅Commissioning
Which of the following is the delivery of content in real-time as events happen? ANSW✅✅Live
Content
Which of the following streaming functions analyzes, de-compresses, and reconstructs the received
packets, and delivers the signal to the end-point? ANSW✅✅Decode
Which of the following types of compression refers to the loss of data when an approximation of the
original image is reconstructed? ANSW✅✅Lossy compression
Which of the following is a device or program with technologies that compresses a signal for more
efficient transmission, then decompresses it for viewing or editing? ANSW✅✅codec
Which of the following describes the amount of delay, or the time it takes for video and audio to be
delivered from the source to the destination? ANSW✅✅Latency
, Which one of the following is a method of transporting media content over a network as a steady,
continuous flow, allowing playback to proceed while subsequent data is received?
ANSW✅✅Streaming
An acceptable viewing experience for consumer purposes may not meet the needs of professional
applications. ANSW✅✅TRUE
Which one of the following works to reverse the first two phases of the streaming process,
reconstruct the signal, and deliver it to the end-point? ANSW✅✅Decode
Which one of the following compression methods is referred to as Intra-Frame compression?
ANSW✅✅Spatial Compression
Which one of the following defines addressing methods and structures for datagram encapsulation
that allows the delivery of packets from a source to a destination? ANSW✅✅IP
Which one of the following is in different geographical locations and provides communication to
smaller networks using routers and switches? ANSW✅✅WAN
Which one of the following is a set of rules, procedures, and formats, defined in seven levels, or
layers? ANSW✅✅OSI Refrence Model
Which one of the following is a connectionless protocol used in real-time streaming applications
where best effort delivery is acceptable and the network devices and applications manage data flow
control and errors? ANSW✅✅UDP
Which one of the following uses one-to-one transmission to deliver video from one point in the
network to another? ANSW✅✅Unicast
Which one of the following is the set of rules for transferring text, graphic images, sound, video, and
other multimedia files on the World Wide Web? ANSW✅✅Hypertext Transfer Protocol - HTTP
Which of the following is NOT a user interface? ANSW✅✅Encoder
