HCIA-Transmission V2.5 Questions and Answers
Which of the following is not the northbound interface provided by the U2000?
For (on-premises) HA solutions where active and standby servers are deployed in the same location, which of the following platforms can be deployed? (Multiple choice).
During service configuration, there are two time slot modes. Huawei uses interleaved time slot mode by default.
Which factors determine the optical signal-to-noise ratio (OSNR) of the receiving end to a certain extent After the signal transmission in the WOM system is transmitted over a certain distance, the "oSNR" of the receiving end of the optical signal-to-noise ratio is reduced to a certain extent. Which of the following is the main cause?
Which of the following is the VLAN classification method? (Multiple choice).
In the SDH optical synchronous transmission system, which of the following bytes is used to transmit the quality and weight and usage information of the clock source?
Fiber loss includes bending loss, absorption loss and scattering loss.
The clock unit can only access the external clock source as the timing signal source of the system through the external clock interface. In addition; It can also output a processed clock and provide a clock source for other devices that need timing.
Which of the following alerts does not trigger an AU-AIS alert?
Which of the following statements about ODUk_PM_BDI is correct?
Which of the following statements about the clock source are incorrect?
When using the LCAS function, which of the following overhead bytes is used to transmit control information? (Multiple Choices)
QinQ technology can be used when multiple users need to share the same VCTRUK and use the same VLAN ID.
When the J1 byte does not match, an alarm () is reported and the service may be interrupted.
For 100G (112Gbit/s) signals, the actual data baud rate is only 28G amplitude.
Which of the following different types of ESC are divided according to the principles of implementation? (Multiple choice)
RSOH, MSOH, HPOH and LPOH implement the monitoring function in descending order of the monitoring fan country.
The value of the MFAS byte increases with the sequence number of the OTUk/ODUK base frame and includes the most () base frames.
U2000 can flexibly interconnect with different third-party network administrators through the Northbound Interface (NBI) and provide physical inventory and alarm information for the upper-layer network management.
Which of the following statements regarding the protection of the cross-connecting plate 1+1 is correct? (Multiple choice).
Optical module parameter "L-64.2" in the "2" indicates which of the following working windows?
LCK insertion takes precedence over AIS insertion. That is, if the user configures LCK insertion and the conditions for automatic AS insertion are met, the LCK is inserted.
According to the formula "ODUk rate = 239/(239k) x STM-N frame rate", ODU4 The rate is equal to the 239/235xSTM-N Pa rate.
Which of the following are the service board types for MSTP devices? (Multiple choice).
Which of the following statements about the U2000 license is incorrect?
When performing fiber cut-off test on an ordinary MSP ring, which of the following alarms will be reported? (Multiple choice).
When the sender detects that the b6-b8 of the K2 byte is 110, it means that the sender has reported an alarm ().
On the NMS system, the network element performance monitoring time is set to () minutes and () hours.
In the case of SNCP, the board selectively receives the service. Therefore, SNCP can protect services on the line.
The number of ODU2e signals multiplexed into the ODU3 signal is the same as the number of ODU2 signals multiplexed into the ODU3 signal.
Which of the following alarm/event storage modes does U2000 support? (Multiple choice).
When a bit False is detected in B2 bytes, which of the following alarms is reported by the peer?
The 1510nm optical monitoring channel can be effectively amplified after passing through EDFA.
SDH signals must be scrambled before they can be transmitted over optical fibers. Which of the following bytes is not scrambled? (Multiple choice).
Which of the following bytes can be used for ordenwire calls between two REG devices?
Which of the following statements about the OTM-n .m and OTMnr .m for OTN are incorrect?
The following is the frame structure of the STM-16?
Which of the following is photolayer tracking? (Multiple Choices)
When the bridge uses ivl learning mode, an entry in the MAC address table is created based on the source MAC address and source port of the teach frame. This entry applies to all VLANs
Forced switching, fiber switching, manual switching and motion switching are decreased in order of priority.
The difference between dispersion compensation fibers and ordinary optical fibers is that the dispersion compensation fibers have a negative dispersion coefficient at ().
Which of the following statements about extending the ECC is incorrect?
EPL services use ports and bandwidth exclusively, and different users may need to share resources. Which of the following methods can be used to isolate user data?
Which of the following bridges are used to forward data based on the MAC address and VLAN ID carried in the data?
Which of the following alerts does not trigger an AU-AIS alert?
The device IP address of the gateway element and the non-gateway element must be set in the same network segment.
When there is a Critical False In Seconds (SES) in the PM portion of the ODUk layer, which of the following alarms is reported by NMS?
In WDM systems, it is ideal to use a dielectric thin problem filter (TFF) when using less than () wavelengths.
Which of the following bytes in the regenerator part overhead are associated with R-OOF and R-LOF? (Multiple Choices)
When configuring the SXCS single board for the OSN3500, which of the following is the access package of the fully configured substand?
Which of the following bytes can be used for wired phones between two REG devices?
A PAUSE frames use reserved multicast addresses and are not forwarded by bridges or switches. In this way, the PAUSE frame does not generate any additional information.
Which of the following is the meaning of "L" in the optical module parameter "L-64.2"
The TAG attribute cannot be set for the internal port VCTRUNK of the single board on the NMS.
PDM uses a polarization beam splitter to divide the laser into two vertical directions: x and y.
PRBS can be used to test that the SDH service is healthy and that the protection reversal function is working.
On a Layer 2 switching device, if the Ethernet port is an Access port, the port can only receive Ethernet frames without a VLAN tag or Ethernet frames with the same VLAN ID as the default VLAN ID of the port.
The OTN signal has a fixed pad period, the same frame period as the SDH signal.
K1 and K2 bytes can send APS switching signaling or indicate that the multiplexed segment signal is invalid.
