Free 1K0-001 Exam Dumps Preview

Question 1

Single choice

Which audio coding uses 8 Kbps?

1. A

   G.711

2. B

   G.722

3. C

   G.729

4. D

   G.728

5. E

   G.722.1

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Correct answerC

Question 2

Single choice

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.

1. A

   True

2. B

   false

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Correct answerB

Question 3

Multiple choice

Which of the following apply to a Video Conferencing System? (Select three of the following options.)

1. A

   Coder / Decoder

2. B

   Audio Translator

3. C

   Audio, Video, Content, and Data Translator

4. D

   Analog to Digital and Digital to Analog Converter

5. E

   Video, Audio, Content, and Data Multiplexer

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Correct answersA, D, E

Question 4

Single choice

H.243 Chair Control can be simultaneously performed by how many Visual Telephony Terminals?

1. A

   One

2. B

   Two

3. C

   Ten

4. D

   Unlimited

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Correct answerA

Question 5

Single choice

Which of the following correctly describes typical audio phantom power?

1. A

   48 volts DC applied to a telephone circuit center pair used to provide power to the telephone set

2. B

   12 volts DC applied to the tip and ring of a TRS connector used to power amplified headphones

3. C

   A DC voltage applied to the center pin of an RCA type connector used to power remote pre-amplifiers

4. D

   A DC voltage applied to pins 2 and 3 of an XLR connector returning through pin 1, used to power microphones

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Correct answerD

Question 6

Single choice

Frame Relay Virtual Private Networks are capable of providing more bandwidth by controlling and increasing the:

1. A

   Circuit Clock.

2. B

   Network Clock.

3. C

   Variable Bit Rate.

4. D

   Committed Information Rate and Burst Rate.

5. E

   Constant Bit Rate.

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Correct answerD

Question 7

Single choice

E1 trunks are capable of supporting up to:

1. A

   6 - 384,000 bit per second connections.

2. B

   7 - 384,000 bit per second connections.

3. C

   5 - 384,000 bit per second connections.

4. D

   4 - 384,000 bit per second connections.

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Correct answerC

Question 8

Single choice

Which of the following describes what function Multicast allows the H.323 Terminal to perform?

1. A

   Make a Multipoint call

2. B

   Make several simultaneous video calls from one Terminal

3. C

   Engage in Multipoint data collaboration

4. D

   Identify several H.323 Terminals as recipients of a broadcast video stream

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Correct answerD

Question 9

Single choice

Ethernet is capable of automatically sensing the speed and duplicity of the LAN connection by using which process?

1. A

   Flash Link Pulse

2. B

   Dynamic Host Configuration Protocol

3. C

   Domain Name Services

4. D

   Light-weight Directory Access Protocol

5. E

   Resource Reservation Protocol

6. F

   RAS Protocol

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Correct answerA

Question 10

Single choice

Which of the following is the most important component of H.221 connectivity?

1. A

   Video Intra Frames Signals and Data Collaboration Signals

2. B

   Frame Alignment Signal and Bit Rate Allocation Signal

3. C

   Encryption Control Signal and Video Conference Signal

4. D

   Audio Signals and Data Collaboration Signals

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Correct answerB

Question 11

Single choice

Session Initiated Protocol uses which command for Call Setup?

1. A

   Registration Request packet

2. B

   Admission Request packet

3. C

   Invite packet

4. D

   IP Call Setup packets described in Q.931

5. E

   IP Call Setup packets described in Q.921

6. F

   None of the above

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Correct answerC

Question 12

Multiple choice

Which of the following are the two most correct definitions of ISDN reference points?

1. A

   U Reference point is between the ISDN terminal and the network termination

2. B

   U Reference point is between the Network Termination and the Network Exchange Equipment

3. C

   S/T Reference point is between ISDN Terminal Equipment and the Network Termination

4. D

   S/T Reference point is between the Network Termination and the Network Exchange Equipment

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Correct answersB, C

Question 13

Single choice

What is the number of scan lines and the frequency for NTSC video?

1. A

   525 lines and 50 Hz

2. B

   525 lines and 60 Hz

3. C

   625 lines and 50 Hz

4. D

   625 lines and 60 Hz

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Correct answerB

Question 14

Single choice

H.323 Media Gateways require H.323 Terminals, which wish to make calls through the Gateway to ISDN sites, to:

1. A

   perform a test with the other H.323 Terminals first

2. B

   be registered with the MCU first

3. C

   be registered with the Gatekeeper first

4. D

   call the Network administrator first

5. E

   be using a Gateway Prefix registered on an Active Gatekeeper

6. F

   be using a Gatekeeper Prefix defined on the End Point

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Correct answerE

Question 15

Single choice

What is the correct frequency response for the G.711 audio algorithm?

1. A

   50Hz to 3.4kHz

2. B

   50Hz to 7kHz

3. C

   300Hz to 3.4kHz

4. D

   300Hz to 7kHz

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Correct answerC

Question 16

Multiple choice

Of the following names, which two apply to S-Video?

1. A

   Synchronous Video

2. B

   Y/C Video

3. C

   Separate Video

4. D

   Select Video

5. E

   Standard Video

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Correct answersB, C

Question 17

Single choice

IP address 172.52.12.27 is which type of address?

1. A

   Class A

2. B

   Class B

3. C

   Class C

4. D

   Class D

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Correct answerB

Question 18

Single choice

H.323 Visual Telephony related ITU-T Standards defines the Media Gateways as:

1. A

   Packet to Channel Media Conversion.

2. B

   Packet to ATM Broadband Conversion.

3. C

   Packet to VSAT Satelite Communications.

4. D

   All of the above

5. E

   None of the above

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Correct answerA

Question 19

Multiple choice

Which of the following video display resolutions are true 16:9 Aspect Ratio?

1. A

   1920X1080

2. B

   1024X768

3. C

   1280X720

4. D

   720X480

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Correct answersA, C

Question 20

Single choice

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

1. A

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

2. B

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

3. C

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

4. D

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

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Correct answerB

Question 21

Single choice

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

1. A

   64, 32, and 56 kilobits per second

2. B

   64, 56, and 48 kilobits per second

3. C

   64, 56, and 48 kilobytes per second

4. D

   24 and 56 kilobits per second

5. E

   48 and 56 kilobits per second

6. F

   48 and 56 kilobytes per second

7. G

   16 and 32 kilobits per second

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Correct answerE

Question 22

Single choice

ISDN provides out-of-band signaling by introducing

1. A

   Digital Data splicing for signals.

2. B

   Data Channel for signals.

3. C

   Bearer Channel for signals.

4. D

   Supplementary Channel for signals.

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Correct answerB

Question 23

Single choice

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

1. A

   DS1

2. B

   DS3

3. C

   DS0

4. D

   CEPT1

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Correct answerC

Question 24

Single choice

IP addressing Version 6 uses how many octets?

1. A

   12

2. B

   40

3. C

   4

4. D

   32

5. E

   16

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Correct answerE

Question 25

Single choice

The Bandwidth on Demand Interoperability Group created four modes for standardized Inverse Multiplexing.

Which mode is best compatible with H.320/221 Video Conferencing?

1. A

   Mode 1

2. B

   Mode 2

3. C

   Mode 3

4. D

   Mode 4

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Correct answerA