Polycom 1K0-001 Online Practice Questions and Exam Preparation

Polycom 1K0-001 Online Questions & Answers

• Question 141:

  Which of the following correctly describe the role room acoustics play regarding acoustic echo cancellation?

  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.
  A. People moving around in a room change the acoustic paths presented to a microphone.
  C. Hard room surfaces act as reflectors for sound, causing multiple acoustic paths from loudspeaker to microphone.

• Question 142:

  E1 trunks are capable of supporting up to:

  A. 6 - 384,000 bit per second connections.
  B. 7 - 384,000 bit per second connections.
  C. 5 - 384,000 bit per second connections.
  D. 4 - 384,000 bit per second connections.
  C. 5 - 384,000 bit per second connections.

• Question 143:

  Asynchronous Transfer Mode Network is capable of providing which bandwidth?

  A. Unspecified Bit Rate
  B. Real-Time Variable Bit Rate
  C. Non-Real-Time Variable Bit Rate
  D. Constant Bit Rate
  E. Available Bit Rate
  F. All of the above
  F. All of the above

• Question 144:

  G .722 uses which bit rate speeds for H.320 Visual Telephony?

  A. 64, 32, and 56 kilobits per second
  B. 64, 56, and 48 kilobits per second
  C. 64, 56, and 48 kilobytes per second
  D. 24 and 56 kilobits per second
  E. 48 and 56 kilobits per second
  F. 48 and 56 kilobytes per second
  G. 16 and 32 kilobits per second
  E. 48 and 56 kilobits per second

• Question 145:

  Which of the following refers to Line coding used with the 2-wire, U reference of a Basic Rate Interface?

  A. BRTZ-AMI
  B. HDB3
  C. 2B1Q
  C. 2B1Q

• Question 146:

  Common Intermediate Format is approximately how many pixels per picture?

  A. 25,000
  B. 100,000
  C. 500,000
  D. 100,000,000
  B. 100,000

• Question 147:

  Which of the following devices is used to change Sound Energy into Electrical Energy for the purpose of the Far-End audience to hear the Near -End audience?

  A. Mixer
  B. Desk top microphone
  C. Loud speaker
  D. Sound pressure meter
  B. Desk top microphone

• Question 148:

  Which of the following describe video dynamics as processed through a videoconference system?

  A. Cameras react to light the same as ones eye and video monitors accurately render the video information so what one sees by eye is what the far-end sees.
  B. Cameras have limits to the range of light levels which can be accommodated and tend to process the darker regions further toward black than what ones eye sees.
  C. Codecs have the same limits as cameras and therefore will not change the perceived qualities of the video as rendered by the cameras.
  D. Codecs have more restrictive limits than cameras, and the best way to accurately assess the video quality sent to the far-end is to view a video scene fully coded and then decoded.
  B. Cameras have limits to the range of light levels which can be accommodated and tend to process the darker regions further toward black than what ones eye sees.
  D. Codecs have more restrictive limits than cameras, and the best way to accurately assess the video quality sent to the far-end is to view a video scene fully coded and then decoded.

• Question 149:

  802.3 MAC format is used for which type of network?

  A. Point to Point Serial Modems
  B. Asynchronous Transfer Mode
  C. Token Ring
  D. RS-530 and V.35
  E. Ethernet
  F. All of the above
  E. Ethernet

• Question 150:

  Which camera control function causes video image to change from bright to dark and back to bright as you pass different light sources?

  A. Iris control
  B. PTZ control
  C. Focus control
  D. Contrast control
  A. Iris control