Polycom 1K0-001 Online Practice Questions and Exam Preparation

Polycom 1K0-001 Online Questions & Answers

• Question 51:

  Which of the following correctly describe training as it applies to Acoustic Echo Cancellers (AEC)?

  A. Training is a process by which AEC adapts to the room acoustics
  B. Training is dependent on room AEC related audio components and gain settings.
  C. Training occurs regardless of the events occurring in a given room and AEC functions will only work if the mute button is pressed.
  D. Training requires no input from any microphone signals in a videoconferencing room.
  A. Training is a process by which AEC adapts to the room acoustics

• Question 52:

  Which of the following describes frequency response?

  A. Ability to determine frequency content of a signal
  B. Ability of a device to respond to amplitude changes
  C. Ability of a circuit to define operating frequency limits
  D. Ability of a device to operate within defined frequency limits
  D. Ability of a device to operate within defined frequency limits

• Question 53:

  PTZ Control may be performed by a camera automatically by using(select 2)

  A. Music tracking.
  B. Voice tracking.
  C. Image tracking.
  D. VTC microphone tracking.
  E. Shadow tracking.
  B. Voice tracking.
  C. Image tracking.

• Question 54:

  H .320 Terminals that are able to call a Gateway and connect to an H.323 Terminal by dialing the E.164 alias, registered with the Gatekeeper, are called:

  A. Obsolete H.320 Terminals.
  B. H.323 Terminals.
  C. H.221 Terminals.
  D. TCS-4 Terminals.
  E. T.120 Terminals.
  F. H.321 Terminals.
  D. TCS-4 Terminals.

• Question 55:

  IP address 172.52.12.27 is which type of address?

  A. Class A
  B. Class B
  C. Class C
  D. Class D
  B. Class B

• Question 56:

  Which of the following correctly describes reverberation and echo?

  A. Echo is a coherent, distinct carry-on of sound.
  B. Reverberation is irrelevant to conferencing audio.
  C. Reverberation is long, distinct, acoustic reflections.
  D. Reverberation is an incoherent, diffuse, carry-on of sound
  E. Echo is short, diffuse, acoustic reflections that linger after the original sound has stopped.
  A. Echo is a coherent, distinct carry-on of sound.
  D. Reverberation is an incoherent, diffuse, carry-on of sound

• Question 57:

  Which three H.263 Video Coder Annexes are used to Improve Video Quality transported through a Non- QOS Network by introducing Reference Picture Selection, Advanced Prediction, and Reference Picture Resampling by a factor of 4?

  A. Annex N
  B. Annex F
  C. Annex L
  D. Annex P
  E. Annex Q
  A. Annex N
  B. Annex F
  D. Annex P

• Question 58:

  The scope of H.225 Standard describes:

  A. video and audio coders for H.323.
  B. channel bandwidth sub-division.
  C. the means by which audio, video, data, and control are associated, coded, and packetized for transport between H.323 equipment on a packet-based network.
  D. the means by which audio, video, data, and control are associated, coded, and channelized for transport between H.320 equipment on a channel network.
  E. the Coding Operation details for video and audio.
  F. A and C
  C. the means by which audio, video, data, and control are associated, coded, and packetized for transport between H.323 equipment on a packet-based network.

• Question 59:

  Of the following, select three functions that the ISDN Functional Group NT-1 for Basic Rate Interface provides.

  A. May provide conversion between LEC and the PBX
  B. May provide phantom power over the TX and RX loops of S/T reference
  C. Provides conversion between the 2-wire U and 4-wire S/T references
  D. Provides power to allow the U Reference to be longer from the Local Exchange
  E. Allows the Local Exchange to Down speed the local loop
  F. Allows the Local Exchange to access and perform maintenance to local loop
  B. May provide phantom power over the TX and RX loops of S/T reference
  C. Provides conversion between the 2-wire U and 4-wire S/T references
  F. Allows the Local Exchange to access and perform maintenance to local loop

• Question 60:

  Defective Local Loop may introduce what two problems? (Pick two of the following options.)

  A. Cyclic Redundancy Errors
  B. Network Channel Clocking Delay
  C. Over-voltage to codec power supply
  D. Over-voltage to the codec camera
  E. Intermittent codec network connections
  A. Cyclic Redundancy Errors
  E. Intermittent codec network connections