1K0-001 Online Practice Questions and Answers

H.239 Standard is best described as:

A. Audio Coding and Additional Media Channels.

B. Role Management and Additional Far End Camera Control.

C. Role Management and Chair Control.

D. Role Management or People and Content Standard for H.300 Series.

E. Role Management -People and Content Standard for H.321 only.

F. Role Management -People and Content Standard for H.320 only.

G.722.1 operates up to frequency response bandwidth of:

A. 600Hz.

B. 1200Hz.

C. 4800Hz.

D. 7000Hz.

E. 12,000Hz.

Customer owned Private Branch Exchange is best described as

A. a switch located at the Network Facilities office.

B. a multiplexer located at the customer premise.

C. a switch located at the customer premise.

D. an obsolete network device.

E. All of the above

Videoconference rate of a H.323 IP Call requires the packet examination of which of the following?

A. Medium Access Control Layer

B. IP Header

C. UDP Header

D. TCP Layer

E. Packet Payload

F. Gatekeeper Registration Request

G. RTP Header

Which signals are being used with Y/C video?

A. Red, green and blue

B. Chrominance and luminance

C. Kodachrome and polychrome

D. Yustra spectrum and composite

If a Y/C cable is plugged in and the result is a black and white video, which signal is not being seen?

A. Red, Green, and Blue signal

B. Super VHS sync signal

C. Luminance signal

D. Chrominance signal

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.

H.241 is best described as a standard that unifies:

A. Audio Coding for H.300 Series.

B. Framing for H.300 Series.

C. Video Conference Coding for H.300 Series.

D. all Operations for H.300 Series.

E. Video Procedures and Control Signals for H.300 Series.

Which Network Services speeds are governed by cable length and cable wire gauge?

A. Packet Switching

B. Integrated Services Digital Network Primary Rate

C. D-Channels

D. B-Channels

E. Digital Subscriber Line Services

Which of the following accurately describes room gain as it applies to acoustic echo cancellation?

A. Measure of amplifier power driving the loudspeakers in a given conference room

B. Ratio of loudness of the participants voices versus the loudspeaker volume arriving at the microphone

C. Relative sensitivity of the microphones expressed in dB versus the same microphone in a "free field" environment

D. Relative perceived loudness of a person speaking in a given room versus the same person speaking in an anechoic chamber