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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?
The value of the MFAS byte increases with the sequence number of the OTUk/ODUK base frame and includes the most () base frames.
Which of the following is the configuration mode for the new NE?( Multiple choices).
Configuring the EPLAN service as a ring is not recommended. If the EPLAN service is configured as a ring network, the STP protocol must be enabled on the network to prevent broadcast storms.
When the J1 byte does not match, an alarm () is reported and the service may be interrupted.
Which of the following clock operating modes supports the ITU-T G.781 standard? (Multiple choice).
TU-AIS is often encountered during network maintenance. Which of the following alerts can trigger a TU-AIS alert? (Multiple choice).
RSOH, MSOH, HPOH and LPOH implement the monitoring function in descending order of the monitoring fan country.
In the system control unit, which of the following databases does not lose data after a power failure? (Multiple choice).
Which of the following is the frame indicated by the VC-4 J1 byte by the AU pointer of the current frame?
An unprotected chain consists of four net elements; ME1, NE2, NE3 and NE4.
Create an end-to-end VC4 path NE1-NE4 and add NE5 between NE2 and NE3 for capacity expansion.
The original configuration remains unchanged and no services are configured on the NE5.
In this case, the unprotected chain becomes NE1-NE2-NE5NE3-NE4, how many VC4 paths can be searched?
QinQ technology can be used when multiple users need to share the same VCTRUK and use the same VLAN ID.
During service configuration, there are two time slot modes. Huawei uses interleaved time slot mode by default.
Which of the following logic function blocks are involved in processing clock signals? (Multiple choice).
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?
In the case of a 1+1 linear MSP, which of the following switching modes does not require the APS protection protocol full (multiple choice) to be enabled
When using the LCAS function, which of the following overhead bytes is used to transmit control information? (Multiple Choices)
Array waveguide grating (AWG) multiplexer/multiplexer has the following advantages: short wavelength spacing, large number of channels and flat passband. Suitable for DWDM systems in ultra-high speed, large tubes.
Which of the following statements regarding multiplexing partial remote False indication (MS-REI) is correct?
(1) B2 bytes indicate the transmission channel.
(2) The M1 byte represents the transmission channel
(3) THE MS-REl is sent from the receiver to the source.
(4) MS-REI is transmitted from the source to the receiver.
(5) Indicates the number of bit Falses detected by the receiver after receiving the MS signal.
If you group SNCP services with the same source, sink, or route, you can increase the SNCP switching speed
The1310nm and 1550nm transmission windows are low loss windows. In DWDM systems, only the 1560m transfer window is used. Which of the following is the main cause?
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 is the difference between an AU pointer and a TU pointer? (Multiple choice).
Which of the following alarm/event storage modes does U2000 support? (Multiple choice).
The rate of SF64 and SL64 boards is STM54. Therefore, the two plates can be interconnected.
The number of ODU2e signals multiplexed into the ODU3 signal is the same as the number of ODU2 signals multiplexed into the ODU3 signal.
By default, B2-EXC alerts are reported when the number of B2 bit Falses exceeds the () threshold.
NE A and NE B are adjacent NE
If B3 and low-order Falses occur in the A->B direction, and B1, B2, B3, and low-order Falses occur in the B->A direction, it is caused by Which of the following performance events does NEA report? (Multiple choice).
Which of the following maintenance signals is transmitted from the downstream site to the upstream site of the OTN?
When using a script to back up and restore network configuration data for the U2000, you can change the directory where the export file is saved.
Which of the following can be used as the central wavelength of the pump source in EDFA? (Multiple choice).
What of the following operations may interrupt the network element service? (Multiple choice).
Which of the following are the components of the WDM system summer with N glass lengths? (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 ().
During service configuration, which of the following service levels cannot be selected?
Which of the following is affected by changing the element ID of OSN3500 on NMS?
Compared with dense wavelength division multiplexing (DWDM) systems, crude glass division multiplexing (CWDM) systems provide a certain amount of glass length and transmission distance within (kmkm), which greatly reduces system cost and has strong flexibility
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
According to ITU-T's recommendations, the requirement that the MSP switching time should be within 50ms is conditional. For example, the number of net elements on the entire ring network is less than 16.
Which of the following is the functional unit that provides a high-speed signal interface and processes the corresponding signal?
Which of the following statements about the EFS4 board are correct? (Multiple choice).
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).
Measure the False correction capability of fec with encoded gain. Which of the following statements about the coding gain is incorrect?
TESTED 07 May 2024
