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Exam Name: Polycom Certified Videoconferencing Engineer (PCVE)
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1K0-001 Test Questions Total Q&A: 161 Questions and Answers
Last Update: 2014-05-11
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Exam Name: CVE-2
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NO.1 What correctly describes the term "half duplex" as it refers to audio in a videoconference?
A. Only one site of a conference is heard at any given time.
B. Only one person at a time is heard speaking from any given room.
C. Only one site of a conference is allowed to speak at any given time.
D. Only one person at a time is allowed to speak in a given room attending a conference.
Answer: A
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NO.2 Which describe the role room acoustics play regarding acoustic echo cancellation? (Select 2
answers.)
A. People moving around in a room change the acoustic paths presented to a microphone.
B. Fans, heaters, and air conditioners add background noise to the room, changing the room
acoustic paths.
C. Hard room surfaces act as reflectors for sound, causing multiple acoustic paths from loudspeaker
to microphone.
D. Heavy drapes and acoustic absorbers remove acoustic paths and therefore cause problems for
acoustic echo cancellers.
Answer: AC
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NO.3 What allows you to detect audio distortion? (Select 2 answers.)
A. audible sound quality
B. measured audio signal level
C. measured background noise level
D. digital signal processor clock level
Answer: AB
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NO.4 Which device connects to mic-level input?
A. an amplifier
B. a microphone
C. an audio mixer
D. a sound pressure meter
Answer: B
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NO.5 How many bits make up frames in T1 framing?
A. 180
B. 193
C. 248
D. 251
Answer: B
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NO.6 How is noise measured? (Select 2 answers.)
A. by volume
B. by distance
C. by amplitude
D. by impedance
Answer: AC
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NO.7 Which describe sub-band and wideband Acoustic Echo Cancellers (AECs)? (Select 3 answers.)
A. Wideband AECs treat the audio as one continuous segment.
B. Sub-band AECs treat the audio as a single 3.1 kHz segment.
C. Wideband AECs require additional processing to reduce echo artifacts.
D. Sub-band AECs divide the audio into small segments and process each segment independently.
Answer: ACD
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NO.8 Which describes frequency response?
A. The ability to determine frequency content of a signal.
B. The ability of a device to respond to amplitude changes.
C. The ability of a circuit to define operating frequency limits.
D. The ability of a device to operate within defined frequency limits.
Answer: D
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