Practice Free H35-211_V2.5-ENU Exam Online Questions
Traffic templates can limit and modify rate and packet priority, and ACLs can provide the same or even more functionality after matching data flows.
If FT18 users experience buffering or stuttering during live video playback, which of the following methods can be used to help locate the fault? (Multiple choice)
- A . Simultaneously match downlink program streams using ACLs on the OLT uplink port, PON, ONU uplink port, and user port. Capture packets during user viewing and compare statistical information to determine where packet loss occurred.
- B . Modify the priority settings of the downlink traffic template on the OLT. Test whether there is an improvement in service quality by increasing the priority.
- C . On the OLT, view the priority settings in the traffic template, match the corresponding priority through ACL and apply it to the outbound direction of the uplink interface, and determine whether the packet priority is effective by querying the statistics.
- D . Check the traffic template configuration bound to the service flow on the OLT to see if its rate-related parameters are set reasonably.
A power access service has deployed GPON Type C dual-homing protection, and the protection group and uplink Ethernet port status are set on the OLT. When the Ethernet port status associated with the protection group on the OLT changes to down, which of the following descriptions is incorrect?
- A . The ONU-side work port status changes to standby.
- B . OLT communicates with ONU uplink status changes
- C . After the switchover, services on the ONU are sent to the OLT through the protected port, that is, service packets are transmitted on the protected port.
- D . The ONU detects a link fault and triggers protection switching.
Which of the following options might cause a complete interruption of broadband service for the entire OLT? (Multiple choice)
- A . Service board failure
- B . Main control board failure
- C . Network attacks
- D . Upboard failure
For some campus networks, a single-layer VLAN is sufficient. When planning VLANs, C-VLAN and S-VLAN.AN can be planned with the same VLAN ID. When creating a service flow, either transparent or translate can be selected as the VLAN switching method.
- A . True
- B . False
In an ideal network configuration, with OLT (3ka fiber optic cable) — 1, and splitter — (7kn fiber optic cable) I, and LT transmitting optical power of 2dBam, what is the normal optical power (Pn) of U receiving optical power?
- A . -10
- B . -2
- C . -5
- D . -15
In an IPTV service scenario, a black screen occurs. Testing reveals that the program stream has reached the user port of the ONU. What could be the cause of this phenomenon?
- A . Set-top box malfunction
- B . The maximum multicast bandwidth allocated to the PON port is too small.
- C . The user does not have permission to watch the program.
- D . User multicast verification failed.
In a GPON network, how does the OLT discard relevant alarms based on CPU values? (Multiple choice)
- A . When the CPU utilization is 60%, discard all alarms except for LOS, LOS, and DGi alarms.
- B . When CPU utilization is 70%, discard all alarms except for 10Si, LOS, and DGi alarms.
- C . When CPU utilization is 85%, discard all alarms except for LOS and DGi alarms.
- D . When CPU utilization is 90%, discard all alarms except for LOS and DGi alarms.
In an FTTB/C scenario, when the ONU is used as an AG device connected to a telephone, the possible reasons for the SIP protocol-based off-hook no-voice fault are ().
- A . Packet loss exists in the upper layer network of the OLT.
- B . ONU (side MG) interface status abnormal.
- C . Voice server malfunction
- D . ONU and IMS routes are unreachable.
The access network does not have service switching functions; it mainly performs ( ), cross-connection, and transmission functions.