Polycom Polycom Certifications 1K0-001 Questions & Answers

• Question 71:

  Which of the following Standards defines multiple video channels during a Visual Telephony meeting?

  A. H.239

  B. H.320

  C. H.221

  D. H.323

  E. H.225

  Correct Answer: A

• Question 72:

  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

  Correct Answer: BCF

• Question 73:

  Packet Traffic Examination Applications provide information regarding which functions? (Select two of the following options)

  A. Byte for Byte breakdown of all framed bits including Payload

  B. Audio Decoded Sound

  C. Video Decoded Picture

  D. Layers 1-7 Header Breakdown

  E. Layers 2-7 Header Breakdown

  F. Layers 4 and 5 Only Header Breakdown

  Correct Answer: AE

• Question 74:

  What effect will an oscillating fan that is visible in the background have on the overall video quality?

  A. No effect

  B. Shadows

  C. Video switching

  D. Lower frame rate

  Correct Answer: D

• Question 75:

  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

  Correct Answer: F

• Question 76:

  Which of the following is the channel used to carry the Audio for H.320 Terminals?

  A. Channel 6

  B. Channel 4

  C. Channel 3

  D. Channel 2

  E. Channel 1

  Correct Answer: E

• Question 77:

  Which of the following best describes 64,000 bits per second?

  A. DS1

  B. DS3

  C. DS0

  D. CEPT1

  Correct Answer: C

• Question 78:

  Ethernet Medium Access Control Address is a:

  A. 32 bit IP Network Interface Address which includes a Vendor ID.

  B. 48 bit IP Network Interface Address which includes a Vendor ID.

  C. 32 bit Hardware Interface Address which includes a Vendor ID.

  D. 48 bit Hardware Interface Address which includes a Vendor ID.

  E. None of the above.

  Correct Answer: D

• Question 79:

  G.723.1 uses which bit rates?

  A. 5.3 and 6.3 kilobits per second

  B. 5.3 and 6.3 kilobytes per second

  C. 8 and 16 kilobits per second

  D. 8 and 16 kilobytes per second

  E. 12 and 24 kilobits per second

  Correct Answer: A

• Question 80:

  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.

  Correct Answer: BD