Answers to the review questions can be found in Appendix A, "Answers to Review Questions."
Name two added features in ITU-T V.92 standard, compared to ITU-T V.90.
Name two limiting factors for the ability of the modem to connect.
If the SNR is 40, how many times higher is the signal strength than noise strength?
How would you troubleshoot a case in which a pad of 3dB might be the root of the problem?
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.
If the preceding LSB in B8ZS is positive, what is the combination for 00000000?
What is the main disadvantage of dial-back authentication?
Name the main phases of the PPP protocol.
What is the value 0xC223 in the protocol field of PPP?
Which protocol in the PPP suite establishes and configures the data-link connection?
What is the address field value of the PPP protocol?
Which packet types of LCP terminate the data-link connection?