EXTRON AV ASSOCIATE CERTIFICATION EXAM
Which of the following performs as a transducer, converting one form of
energy to another, and is classified based on how it captures sound? –
ANSWER- Microphone
Which of the following is referred to as the safety zone that allows audio
peaks to exceed the nominal level without clipping? – ANSWERHeadroom
Which of the following is an example of dropping the sound levels for
background music, to focus the audio on an important voice-over
announcement? – ANSWER- Ducking
Which of the following is the last link of the audio signal path? –
ANSWER- Loudspeaker
Which of the following is the average rate of speed at which sound
travels through air, measured at sea level and 70F/20C degrees? –
ANSWER- 1128 feet/second (343 meters/second)
The rate at which the sound vibrations repeat is called: – ANSWERFrequency
Which of the following is related to the amount of energy that a sound
wave carries? – ANSWER- Amplitude
Which of the following is a low voltage level that comes out of a
microphone when someone speaks into it? – ANSWER- Mic Level
Which of the following has two conductor wires, one for the hot audio
signal, and one for ground? – ANSWER- Unbalanced cables
Which of the following carries two independent channels for left and
right audio, and creates the impression of sound heard from various
directions? – ANSWER- Stereo sound signals
When a microphone signal first enters a mixer, which of the following is
used to control the input level of the audio. – ANSWER- Gain
Which of the following is designed to capture spoken words limited to
the speaker, commonly found on podiums or in conference rooms and
boardrooms? – ANSWER- Gooseneck microphone
An omnidirectional microphone pickup pattern has a coverage of: –
ANSWER- 360 degrees
Which of the following file types are part of the Moving Picture Experts
Group 1, Audio Layer III encoding techniques? – ANSWER- MP3
Which of the following allows its users on a less secure network to send
and receive data through a safe connection by extending a private
network across the Internet? – ANSWER- Virtual Private Network –
VPN
Which of the following can be found in various Extron Pro Series
control processors for communication to external supported devices,
such as TouchLink Pro touchpanels and user interfaces? – ANSWERAV LAN port
Which of the following is manually configured as a fixed address for a
device, and does not change? – ANSWER- Static IP Address
Which of the following can be used as an intermediate router for the
subnet when an IP address is not within the network? – ANSWERDefault Gateway
Which of the following layers of the OSI Model handles error detection
with CRC checksums and flow control on a local network? – ANSWERData Link Layer 2
Within the OSI Model which layer allows for varying operating systems
to communicate with each other on the network? – ANSWERPresentation Layer 6
Which of the following relationships describes the basic network
operations of sending and receiving bidirectional data messages? –
ANSWER- Client-Server
Which one of the following network topologies connects a central node
to every device on the network, acting as a multiport repeater? –
ANSWER- Star Topology
Which one of the following supports communication between subnets
and across different networks, by determining the next network point to
which a packet is forwarded as its destination? – ANSWER- Routers
WANs cover wide geographical areas and are commonly used to link
different locations together. – ANSWER- True
Which one of the following protocols is responsible for the actual
delivery of data over a network? – ANSWER- Transmission Control
Protocol
192.168.100.101 is an example of which type of address? – ANSWERIP Address
Which one of the following types of IP Addresses are automatically
assigned to network devices using a DHCP server? – ANSWERDynamic IP Address
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