Free Access Huawei.H12-931-ENU.v2022-03-14.q118 Practice Test (Page 11)

Question 46

A network element cannot join the smart domain after the smart feature is enabled. The possible reasons are: (multiple choice)

A.The electrical layer DCC is not surging;

B.N board DCC management RES_ODU channel status is not enabled;

C.The smart domain is not refreshed;

D.The network element data is not uploaded;

E.ODU1_PM_AIS exists on the N board;

Question 47

The scope of 1+1 protection in the OTU board is the optical fiber on the OCH path, that is, the optical fiber between the dual transmission of the source OTU single board and the selective receiving of the sink OTU single board. Cannot protect OTU board

A.FALSE

B.TRUE

Question 48

Which of the following descriptions are correct for error alarms (multiple choice)

A.FEC_AFT_COR_ER enables the FEC function to be valid. The error rate after FEC error correction indicates the error statistics of the OTUk signal (including OTUk overhead) after FEC encoding and error correction. The error after correction is not zero, which means transmission The bit error introduced by the layer may have affected the OTUk signal.

B.FEC_BEF_COR_ER enables the FEC function to be effective, FEC error rate before error correction, indicating the error statistics of the received OTUk signal (including OTUk overhead), and the error rate before error is not zero, indicating the error rate introduced by the transport layer The bit error may have affected the OTUk signal.

C.OTUk_ES (OTUk_BEE ), ODUk_PM_ES (ODUk PM_BBE) are OTUk/ODUk errored seconds (background error block), the count is the error count of the OTUk/ODUk signal that is counted, non-zero means OTUk/ODUk signal The second in which a bit error occurred (the number of errored blocks).

D.OTUk_SES and ODUk_PM_SES are OTUk/ODUk severely errored seconds, and the count is not zero, indicating that the OTUk/ODUk signal has generated a large bit error in seconds (1 second counting error bits more than 15% of the maximum transmission byte)

Question 49

The ODU product label is shown in the picture. Which of the following statements is correct? (multiple choice).

A.This ODU can be used as low station

B.The transceiver interval of this ODU is 154MHz

C.The transmitting frequency of this ODU is located in sub-band A of 7GHz

D.The receiving frequency range is: 7582-7638MHz

Question 50

After the AM function of the microwave equipment is enabled, the signal level of the high modulation mode is lower than that of the low modulation mode.