Huawei Certified Internetwork Expert-Transmission - H12-931-ENU FREE EXAM DUMPS QUESTIONS & ANSWERS

A. LOS (The channel of the service board or cross-connect board is not opened; the pin is reversed, and the board is not inserted tightly) B. LOF (same as LOS; clock loss; business slot physical slot and logical slot are inconsistent) C. Receive FIFO overflow (clock, frame header jitter; no clock board inserted) D. OOF (loss of clock: clock, frame header jitter; no clock board inserted)

A. In the OTN bearer SDH multiplex section ring networking scenario, in order to avoid simultaneous switching of OLP protection and MSP protection, the delay time can be set in the MSP protection group B. The power difference between the main and backup channels of the OLP protection group is more than 3dB by default, and the alarm is reported up, and the maximum can be set to 8dB C. The ODUk-SNCP protection is superimposed on the OLP protection. In order to avoid secondary switching of the SNCP protection, the delay time can be set in the SNCP protection group D. OLP main and standby optical power abnormal threshold exceeds 5dB by default to perform switching, and the threshold range can be set -5~5

A. Huawei transport domain network elements all support the HWECC protocol, and the default physical transmission channel is D1 to D12 bytes. When the network element ID is set, the ECC communication can be carried out without any configuration after plugging in the optical fiber. B. The IP address of U2000 is 129.9.0.100/24, and the IP address of the gateway NE it manages is 129.9.0.2/24. If the U2000 wants to communicate with a network element with an IP address of 133.168.0.2/24 that is connected to a gateway network element through IP over DCC, the U2000 needs to be directly connected to the gateway network element. C. Huawei transport domain network elements support three communication protocols for DCN networking, among which the HWECC protocol is a private communication protocol developed by Huawei for DCN networking of transport domain network elements. D. The network management server and each managed network element adopt in-band networking or out-of-band networking for communication. In-band networking refers to the networking mode in which the U2000 uses the service channels provided by the managed devices to manage the devices in the network.

A. Before the test, check whether the required test wires are complete, the type of connector and the applicability of the instrument and whether the connection is good. B. When performing a 24-hour bit error test, ensure that the entire test process is free from external interference (including human factors and power supply conditions, etc.). If there is an abnormality, the exact time of the abnormality should be recorded or the test should be repeated. The test time does not need to exceed 24 hours. C. Prepare cotton swabs and alcohol, and pay attention to the cleaning of the connector at all times when testing the optical interface characteristics to ensure the accuracy of the test data. D. When testing, be careful not to look directly at the optical transmitter interface, so as not to damage your eyes.

A. The electrical monitoring is used, and the line quality is not good B. The same NE user logs in to the NE at the same time C. Network element ID conflict D. Use optical monitoring, DCC mode setting is wrong

A. C2.A8.D2.e1 B. 127.0.0.1 C. 10.110.192.111 D. 10011010.01101110.10000000.01101111

A. The relocation distance has changed, and the optical power of the line needs to be reassessed B. The relocation distance has changed, and the system dispersion needs to be re-evaluated C. The relocation distance has changed and the system signal-to-noise ratio needs to be reassessed D. There is no need to adjust the optical power of upstream and downstream sites in the network management during the relocation process

A. Configure the time/time zone, you need to close the database B. The dual-system active/standby association will automatically stop the network management of the standby site, and then automatically start the network management of the primary site. If the network management of the primary site is already started, the network management will not be restarted C. When using the maintenance tool to do the dual-machine active/standby association operation, the initiator is the primary site, and the data will be copied from the initiator to the designated remote server D. During the process of associating/separating the primary and secondary sites, it is found that the VCS prompts a connection error. This situation is problematic. You need to check the heartbeat line communication between the primary and standby sites.

A. NE3 receiving direction C2 byte B. C2 byte in the sending direction of NE1 C. NE2 West C2 byte D. NE2 east C2 byte

A. CORBA notification service; convert OSS request information into U2000 system internal interaction information, and receive alarms/performance/notifications. B. CORBA name service; provides the only entry for OSS to access the U2000 CORBA interface correctly. C. CORBA name service; during deployment, it is necessary to ensure that the name of the managed U2000 is unique within the NMS management domain. D. CORBA notification service; when configuration data changes in U2000, OSS can be notified of detailed change information in time. Ensure the consistency of OSS and U2000 data

A. FALSE B. TRUE

A. FALSE B. TRUE