(Multi-select) In U2000, adding a line template to map user traffic flows to GEM Ports supports which mapping modes?

(Radio) To improve link reliability, the LT device uses two upstream ports 0/19/0 and 0/20/0 to configure a timedelay protection group. Which of the following commands is optional?

When the Type C dual-home protection linkage uplink detection is enabled, if the OLT or the OLT uplink fails, the Type C dual-home protection can switch over to another OLT.

When the H.248 protocol is used to deploy the VoIP service, the registration information sent by the MG to the MGC contains the following information:

Services {Method=Restart Reason=[901]}

Which command can trigger the information?

Max-Forwards fields can be used in SIP messages to solve loop problems and avoid endless packet forwarding.

In the evolution from EPON to 10G-EPON, a smooth transition is achieved at the central office by adding WDM modules, and ODNs can coexist/reuse.

If the ONT zero-touch provisioning function is enabled on eSight, you can configure multiple service profiles. Which parameters can be set on the Multi-Service Profile Management tab page?

(Single) When you configure HUAWEI Network Management U2000 for FTTH IPTV service access, which of the following templates needs to be configured?

The priority of the packets at the egress port can be mapped or set directly. Which of the following statements about priority processing is correct?

(Radio) 10G GPON system downlink wavelength is:

If multicast services are deployed only on private networks, which multicast address segment is preferred?

The DBA scheduling of the GPON system is only for the upstream traffic, and the downstream traffic cannot be scheduled.

In Layer 2 multicast, how many multicast IP addresses can a multicast MAC address correspond to?

(Radio) The downstream effective bandwidth of a GPON PON port is:

If a customer needs to protect the ONU trunk optical path but does not need to protect the ONU branch optical paths, which PON line protection mode should be used?

Sequence of upstream QoS processing on the OLT:

The solutions to MAC address spoofing include:

The number of users under the OLT can also determine whether the VLAN is single-layer or dual-layer. Single-layer VLANs can be used when the number of users is small; dual-layer VLANs must be used when services need to be distinguished and the number of users is close to ( ).

When ONT fails or the hardware needs to be replaced, the ONT needs to be removed on the OLT and then a new ONT needs to be registered.

Which of the following is not a prerequisite for the eSight to automatically discover OLTs and MxUs using IP addresses?

(Multiple choice) When the OLT main control board CPU is detected to be continuously high, the following are possible causes:

Which of the following statements about terminal selection principles are correct?

(Multi-select) You use an OTDR to locate an abnormally attenuated point on the optical path. After connecting the OTDR to the line under test, which of the following parameters can be set?

The complete SIP message interaction process contains multiple requests and responses. Which SIP header field is used to indicate which specific request a given response corresponds to?

In the upstream direction of the OLT, link aggregation can be used to improve bandwidth and reliability. Which OLT uplink aggregation modes are supported?

If only one ONU connected to a PON port cannot be automatically discovered, the possible cause is that the hardware of the ONU is faulty.

The number of users under the OLT can also determine whether the VLAN is single-layer or dual-layer VLAN. Single-layer VLANs can be used when the number of users is small, and dual-layer VLANs must be used when the need to distinguish services and the number of users is second to ().

(Radio) The 10G GPON system uses XGEM frames to encapsulate data, and the Port-ID is defined in the XGEM header as () bits.

The QoS should be planned according to service requirements. Generally, a service with a higher priority adopts the ( ) scheduling mode.

Which of the following statements about the E2E ODN pre-connection solution are correct?

What can cause erratic display in IPTV programs?

(Radio) When configuring multicast services on MA5600T/MA5680T, the programs of multicast VLANs are statically configured. Which of the following must be configured, otherwise the multicast programs may not be able to be watched?

Layer 2 enables IGMP Snooping, and when the switch port receives an IGMP Join (Membership Report), it listens to the packet and adds the corresponding port to the multicast group.

The protection scope of GPON Type B dual-homing protection covers ( ).

On a Layer 2 network, which protocol can be used to better control multicast traffic forwarding?