Huawei H31-311_V2.5 Real Exam Questions Test Engine Dumps Training With 200 Questions [Q46-Q68] : Exams Labs Braindumps : http://blog.examslabs.com

NEW QUESTION 46
When the sender detects that the b6-b8 of the K2 byte is 110, it means that the sender has reported an alarm ().

MS-AIS

R THE

R LOF

MS RIF

NEW QUESTION 47
Which of the following clock operating modes supports the ITU-T G.781 standard? (Multiple choice).

Tracking

Hold

Self-curved running

Master/Slave

NEW QUESTION 48
The dual fiber ring topology consisting of three network elements is arranged in counterclockwise order as the service between A, B and C A and C occupies the first VC-48 on the short path VC-12 time slots, B and C of the same service also occupy the 48th of the first VC-4 on the short path VC-12 time slots

Unidirectional path protection ring

SNCP ring

Bidirectional MSP ring

All of the above

NEW QUESTION 49
In WDM systems, it is ideal to use a dielectric thin film filter (TFF) when using less than () wavelengths.

NEW QUESTION 50
The OTN signal has a fixed pad period, the same frame period as the SDH signal.

True

False

NEW QUESTION 51
If the overhead bytes pass through two plugged backplane buses, then the two slots are called paired slots that enable automatic transparent transfer of overhead bytes, such as (), () and (). Even if the SCC on the local network element The board is offline, which can also improve msP switching performance and protect DCC communication with other network elements. (Multi-quality selection).

K bytes

D bytes

E1 bytes

B1 word strip

NEW QUESTION 52
If you group SNCP services with the same source, sink, or route, you can increase the SNCP switching speed

True

Error

NEW QUESTION 53
The rate of STM-1 is ()bit/s.

9*270*1*8000*8

9*270*1*8000

9*270*1’8000*16

9*270*8000

NEW QUESTION 54
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.

True

False

NEW QUESTION 55
Which of the following statements about the clock source are incorrect?

The internal clock source has the lowest priority due to low accuracy.

Typically, a branch clock is not used as a clock source for a device.

Select the same SSM co-editor for all NE in the clock protection subnet

If the difficultY SSM protocol is enabled, you need to set the clock source ID to correct the answer.

NEW QUESTION 56
When there is a Critical Error In Seconds (SES) in the PM portion of the ODUk layer, which of the following alarms is reported by NMS?

ODUk_PM_ES

ODUk_PM_SES

ODUk_PM_SESR

ODUk_PM_UAS

NEW QUESTION 57
The frame structure of ODU4 is four times that of ODU1

True

False

NEW QUESTION 58
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

100

200

NEW QUESTION 59
The backplane has two 48V power cords, and each board gets two -48V power supplies from the backplane. After combining the power supply via diodes, the various voltages required for each component are obtained by means of a DC/DC power module and a linear mane swap.

True

Error

NEW QUESTION 60
Which of the following statements regarding the protection of the cross-connecting plate 1+1 is correct? (Multiple choice).

The source business board sends services to the main and standby crossover boards. .

After the service cross-connection is completed, the active and standby cross-board sends the data of the primary cross-board to the receiving service board.

The receiving service board can only receive data from the active cross-link board

The bus of the two cross-connected modules works independently and does not interfere with each other. .

Dual bus system structure indicates that the service board performs dual data transfer to the cross-connection side and selectively receives data on the cross-connection side. .

Both cross-connecting plates have the same configuration. The service board will selectively receive services from one of them based on the quality of service and the status of the cross-connecting board. .

NEW QUESTION 61
When a bit error is detected in B2 bytes, which of the following alarms is reported by the peer?

MS-AIS

RS-BBE。

MS-FEBBE

MS-BBE

NEW QUESTION 62
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?

The EDFA operating wavelength flatness region is contained in this window.

The nonlinear effect of the B.1550 nm-wavelength region is small.

The 1550nm wavelength region is suitable for long-distance transmission.

None of the above

NEW QUESTION 63
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?

Use EDFA. ).

Use of multi-density multiplexers and multiplexers.

Do not use new optical fibers.

Optical fiber attenuation is too high.

NEW QUESTION 64
For 100G (112Gbit/s) signals, the actual data baud rate is only 28G amplitude.

True

Error

NEW QUESTION 65
Establish Ethernet leased line service between HI (HQ) and H2 (branch) of enterprise H, and bind 5 in the corresponding VCTRUNK VC-12. When a VC-12 fails, the Ethernet dedicated line between H1 and H2 is interrupted. So, which of the following statements is true?

enables the LXAS feature on the port used by the Ethernet Leased Line service between H1 and H2.

Enable the LCAS feature on the VCTRUR port used by the Ethernet Leased Line service between H1 and H2. (Correct answer”

Enable the QinQ feature on the ports used by H1 and H2 Division’s Ethernet Leased Line service.

Enable the QinQ function on the VCTRUNK port used by the Ethernet Leased Line service between H1 and H2.

NEW QUESTION 66
What of the following operations may interrupt the network element service? (Multiple choice).

search protects the subnet

Look for trails

Activate the trail

Download the network metadata

NEW QUESTION 67
The segment overhead of STM-4 is () bytes/frame.

9*9*4

9*8″4

9*9*8

9*8

NEW QUESTION 68
Both PDH and SDH have globally harmonized standards.

True

False