Review Questions


Answers to the review questions can be found in Appendix A, "Answers to Review Questions."

1:

Name two added features in ITU-T V.92 standard, compared to ITU-T V.90.

2:

Name two limiting factors for the ability of the modem to connect.

3:

If the SNR is 40, how many times higher is the signal strength than noise strength?

4:

How would you troubleshoot a case in which a pad of 3dB might be the root of the problem?

5:

If AMI needs to transmit the octet 1 0 0 1 0 1 1 0, and the first mark is +, what are the next marks? Write the entire octet.

6:

If the preceding LSB in B8ZS is positive, what is the combination for 00000000?

7:

What is the main disadvantage of dial-back authentication?

8:

Name the main phases of the PPP protocol.

9:

What is the value 0xC223 in the protocol field of PPP?

10:

Which protocol in the PPP suite establishes and configures the data-link connection?

11:

What is the address field value of the PPP protocol?

12:

Which packet types of LCP terminate the data-link connection?




Troubleshooting Remote Access Networks CCIE Professional Development
Troubleshooting Remote Access Networks (CCIE Professional Development)
ISBN: 1587050765
EAN: 2147483647
Year: 2002
Pages: 235

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