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- CCNA Voice 640-461
1.
Which of the following are high-complexity codecs? (Choose two.)
- A.G.711 μ-law
- B.G.729
- C.G.729a
- D.iLBC
- Answer
- Report
Answer : [B, D]
2.
What amount of bandwidth is consumed by the audio payload of G.729a?
- A.4.3 kbps
- B.6.3 kbps
- C.8 kbps
- D.16 kbps
- Answer
- Report
Answer : [C]
3.
What frequency range is accurately reproduced by the Nyquist theorem?
- A.200-9000 Hz
- B.300-3400 Hz
- C.300-4000 Hz
- D.20-20,000 Hz
- Answer
- Report
Answer : [C]
4.
Which of the following standards created by the ITU designates international numbering
plans for devices connected to the PSTN?
- A.ITU-T
- B.E.164
- C.ITU-161
- D.T-161
- Answer
- Report
Answer : [B]
5.
Which of the following time slots are used for T1 and E1 signaling when using CCS
connections? (Choose two.)
- A.Time slot 1
- B.Time slot 16
- C.Time slot 17
- D.Time slot 23
- E.Time slot 24
- Answer
- Report
Answer : [C, E]
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