Free H35-210_V2.5 Exam Braindumps
HCIA-Access V2.5 Questions 66–70 (page: 15)

Updated On: 9-Feb-2026

Regarding the difference between GPON and EPON, which of the following statements is correct?

  1. Both GPON and EPON use single-fiber bidirectional data transmission. EPON uses 1490nm downstream wavelength to transmit data, and GPON uses 1550nm downstream wavelength to transmit data.
  2. The GPON protocol standard was proposed by IEEE, and the EPON protocol standard was proposed by ITU-T
  3. GPON uses the extended OAM protocol to manage ONUs
  4. GPON provides higher downstream bandwidth

Answer(s): D



In the H.248 protocol, the terminal can be programmed to detect events. Once these events are detected, the MG will send a report to the MGC or the MG will take corresponding actions.

  1. Modify
  2. ServiceChange
  3. Notify
  4. AuditCapabilities

Answer(s): C



Regarding EPON, which of the following descriptions is incorrect?

  1. The EPON standard is one of many TDM-PON standards and has the basic characteristics of a TDM- PON network: a tree topology network is composed of OLT, ONU and ODN (Optical Distribution Network).
  2. In the logical topology, the EPON protocol establishes a logical link for the OLT to each ONU, and the leading byte of the Ethernet data frame carries the logical link identity, that is, LLID (Logical Link Identity).
  3. The downstream data stream from the OLT to the ONU is encapsulated as an Ethernet message, and the corresponding LLID is attached and sent in the tree PON network. The optical splitter in the ODN broadcasts the data stream to each branch, and all ONUs can receive the downlink Ethernet data frame, and selectively receive their own data according to the LLID.
  4. In the upstream direction from the ONU to the OLT, each ONU uses the broadcast mode to share the upstream bandwidth.

Answer(s): D



Regarding multicast and IPTV, which of the following statements is incorrect?

  1. Multicast refers to the form of point-to-multipoint communication in the network
  2. The core of multicast technology is to place the message copy work as close as possible to the receiver to complete it, reducing the data traffic on the network.
  3. Through the introduction of controlled multicast, the management and control of multicast users are completed on the DSLAM equipment,
  4. IPTV is a way of video on demand

Answer(s): D



Which of the following statements is correct?

  1. LAN Switch is mainly to find the corresponding IP address according to the MAC address of the data packet to realize the forwarding of the data packet.
  2. The LAN Switch may not recognize the MAC address, but must recognize the IP address.
  3. Compared with shared Hub, a port of LAN Switch can be said to be a separate conflict domain.
  4. When the LAN Switch receives a data packet containing an unrecognized MAC address, it sends the data packet directly back from the received port.

Answer(s): C



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