Polycom 1k0-001 Exam

• Exam Number/Code : 1k0-001
• Exam Name : polycom cve core exam
• Questions and Answers : 166 Q&As
• Update Time: 2010-04-15

 

1. E1 framing has a bit structure of how many bits per frame?
Clue Full metallic E1 speed divided by 8KHz Stratum timing.
A. 200
B. 240
C. 256
D. 300
Answer: C

2. Which two types of Networks are capable of providing consistent, guaranteed QoS Constant Bit Rate Transport
with a steady reliable clock source?
A. ISDN D-Channel
B. ISDN Circuit Switched Voice
C. ISDN Circuit Switched Data
D. X.25 / X.75 Packet Switching
E. ATM CBR-AAL0 Service
F. Public Virtual Private Network
Answer: CE

3. G.722 Audio over IP using the H.323 Standard must be transmitted as packets that are_____________
A. unframed at random intervals.
B. framed using 802.3 and are sent at random intervals.
C. framed using 802.3 and are sent at 140 millisecond intervals.
D. framed using 802.3 and are sent at 10 millisecond intervals.
E. framed using 802.3 and are sent at 60 millisecond intervals.
Answer: E

4. H.323 Videoconferencing connections over the IP Packet Network to allow Video, Audio, Content to transport are
called what?
A. UTP Streams
B. LAN Streams
C. RTP Streams
D. TCP Streams
E. HTTP Streams
Answer: C

5. Encryption security of Video and Audio will be used to make
A. only the packet headers unreadable
A. only the packet headers unreadable
B. only the first packet header unreadable
C. only the packet payload unreadable
D. None of the above
Answer: C

6. True or False?
H.323 / H.225 / H.245 ITU-T Standards describe that Audio and Video are always multiplexed together in the same
packets for In-Bound and
Out-bound.
A. True
B. false
Answer: B

7. H.323 Media Gateways require H.323 Terminals, which wish to make calls through the Gateway to ISDN sites, to
A. perform a test with the other H.323 Terminals first.
B. be registered with the MCU first.
C. be registered with the Gatekeeper first.
D. call the Network administrator first.
E. be using a Gateway Prefix registered on an Active Gatekeeper.
F. be using a Gatekeeper Prefix defined on the End Point.
Answer: E

8. A popular way to select a Gateway is by using a
A. Gateway SPID values registered on a Gatekeeper for ISDN to IP.
B. Gateway Prefix values registered on a Gatekeeper for IP to ISDN.
C. Direct In Dial Numbers of ISDN to IP with or without a Gatekeeper.
D. Set of numbers that point to the TEI of the D-Channel.
E. A and B
F. B and C
G. C and D
Answer: F

9. 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.
Answer: BD

10. Gatekeeper messages for registration and admission that are successful will always have the Generic structure
as:
(Note - "XX" - is a variable value that represents specific Gatekeeper names)
A. RequestXX, ReplyXX
B. RequestXX, DenyXXC
C. XXRequest, XXReply
D. XXRequest, XXConfirm
E. XXRequest, XXAcnowledged
Answer: D

11. Quarter Common Intermediate Format has
A. twice the resolution of CIF.
B. half the number of lines of 4CIF.
C. four times more resolution than CIF.
D. None of the above
Answer: D

12. 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.
Answer: E

13. Which of the following video display resolutions are true 16:9 Aspect Ratio?
A. 1920X1080
B. 1024X768
C. 1280X720
D. 720X480
Answer: AC

14. What allows the detection of audio distortion?
A. Audible sound quality
B. Measured audio signal level
C. Measured background noise level
D. Digital signal processor clock level
Answer: AB

15. 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
Answer: D

16. S-Video Connections are typically designed with what type of connectors?
A. 4-Pin Mini-DIN
B. RCA
C. Banana plug
D. Jones strip
E. Phoenix
Answer: A

17. The Bandwidth on Demand Interoperability Group created four modes for standardized Inverse Multiplexing. Which
mode is best compatible with H.320/221 Video Conferencing?
A. Mode 1
B. Mode 2
C. Mode 3
D. Mode 4
Answer: A

18. What term is used for video display resolution of H.264 Video Coding used for Visual Telephony?
A. Standard Intermediate Format
B. Standard Systems Committee
C. Standard Optics
D. Standardized Network Management Parameters
Answer: A

19. 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
Answer: C

20. To setup a Videoconferencing system to be capable of ISDN speeds up to 512 kilobits per second, which of the
following is required? (Select three of the following options.)
A. 3 TE-2
B. 4 NT-1
C. 4 TE-2
D. 1 IMUX with 3 BRI line support
E. 1 IMUX with 4 BRI line support
F. 3 BRI lines
G. 3 NT-1
H. 6 BRI lines
I. 4 BRI lines
Answer: BEI

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