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Free H11-879 Exam Braindumps
HCIE - Enterprise Communication (Written) Questions 31–35 (page: 8)

Updated On: 9-Feb-2026
Page 8 of 23
PDF with 106 Questions

The standard auxiliary stream token management protocol recommended by the SIP protocol is (-------)? (single choice)

  1. H.239
  2. INFO
  3. BFCP
  4. H.245

Answer(s): C



When the eSpace 7900 series phones are restored to factory settings, which of the following statements are correct? (multiple choice)

  1. Restoring factory settings will reset all phone parameters to default values
  2. All information in contacts and call logs will be retained
  3. Signal tones, language packs and personalized wallpapers imported by users will be retained
  4. In the phone login interface, long press the home interface button to restore the factory settings

Answer(s): A,D



What technologies are adopted by TE series terminals to ensure the safety of signaling and media data? (multiple choice)

  1. Support TLS protocol to ensure the security of HTTP, LDAP, FTP data transmission
  2. Provide a secure management channel through TELNET by default
  3. Support H.235, SIP over TLS, SRTP at the same time to ensure the safety of signaling and media data
  4. At the maintenance and management level, it supports password complexity checking and anti-brute force cracking mechanism

Answer(s): A,C



In the U1900+SC solution, if a conference reservation is made through SMC2.0 and a multi-party telephone terminal is called, which of the following statements are correct? (Multiple choice)

  1. After each IP phone terminal mixes on U1900, U1900 sends the mixed voice to MCU
  2. Each IP phone terminal directly interacts with the MCU for media streaming
  3. After each IP phone terminal completes the audio mixing on the U1900, it is sent to the MCU. If there is a video phone in the IP phone, its video media is directly sent to the MCU
  4. If there is a PSTN phone in the conference held by the video conferencing system, the media stream of this PSTN phone must go through the U1900 system

Answer(s): B,D



One codec rate is 64kbps, and the packaging time is 20ms. What is the IP band occupied by the codec? The width is () kbps (Note: IP/UDP/RTP header is 40 Bytes, here 1kbps=1000bps)

  1. 83.6
  2. 76.6
  3. 90.4
  4. 80

Answer(s): D



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