H31-341_V2.5 試験問題と解答 - 模擬練習 - 練習問題・模擬試験

Question No : 1
If only all network elements in a certain subnet are out of management on the network management system, and network elements belonging to other subnets communicate normally, which of the following reasons is impossible?

A.Changing the IP address of the gateway NE by mistake
B.NMS network management failure
C.Misconnection or failure of optical fiber
D.The network scale is too large, and the scale of ECC communication between network elements exceeds the processing capacity of network elements

正解:

Question No : 2
In the deployment or expansion scenario, alarm reversal can reverse the alarm state and reduce a large number of unnecessary alarm reports. Which of the following descriptions about alarm reversal is correct?

A.The setting of alarm reversal is based on the channel
B.The setting of alarm reversal is based on the network element
C.The setting of alarm reversal is port-based
D.The setting of alarm reversal is based on the board

正解:

Question No : 3
In a chain network, NE1, NE2, and NE3 are all OADM sites, and NE1 is a gateway network element, and uses OSC communication. When the optical monitoring board at the intermediate site NE2 fails, which of the following phenomena will not occur?

A.The optical monitoring signal between NE1 and NE3 is interrupted
B.The monitoring board in NE2 reports the BD_STAIUS alarm
C.The OSC_LOS alarm is reported on the monitoring boards in NE1 and NE3
D.Service interruption between NE1 and NE3

正解:

Question No : 4
Which of the following descriptions about optical line protection is wrong?

A.Optical line protection is double-ended switching. In the case of a single optical fiber interruption, there will be no inconsistency in sending and receiving routes.
B.Use the OLP board to configure optical line protection. The RI1/T01 optical port of the 0LP board must be working, and the RI2/T02 optical port must be protection.
C.OLP board switching is only related to the received optical power
D.When protecting optical lines, use the dual-feed and selective-receiving function of the OLP single board to protect the line fibers between adjacent sites using separate routes

正解:

Question No : 5
Which of the following services has the smallest frame period?

A.ODU1
B.ODU0
C.ODU2
D.ODU3

正解:

Question No : 6
When PWE3 emulates TDM services, when the UNI side interface uses CRC4-multiframe access, which emulation method does PWE3 use?

A.1 to 1 encapsulation
B.CESOPSN
C.N to 1 encapsulation
D.SAToP

正解:

Question No : 7
Which of the following commissioning ranges should the optical power of each single wave before combining (that is, the input optical power of the combining board) be within?

A.Average single-wave optical power- 2dB<single-wave optical power<average single-wave optical power+ 3dB
B.Average single-wave optical power- 1dB<single-wave optical power<average single-wave optical power+ 2dB
C.Average single-wave optical power- 1dB<single-wave optical power<average single-wave optical power+ 3dB
D.Average single-wave optical power- 2dB < single-wave optical power<average single-wave optical power+2dB

正解:

Question No : 8
Which of the following descriptions about electrical layer scheduling is wrong?

A.Inter-board cross-connect refers to the cross-connect configured between different boards. Inter-board cross-connection dispatches ODUk services between boards in a subrack through the backplane and centralized cross-connection boards.
B.Intra-board cross-connect refers to the cross-connect configured between different ports on the same board.
C.TTA and TDC boards support aggregation mode and non-aggregation mode.
D.In the aggregation mode application scenario, it is necessary to cross within the board first, and then cross between boards.
E.All cross-connects need to be configured on the network management system.

正解:

Question No : 9
What operation does the PROG indicator of the NG WDM device board blink rapidly (green) indicate?

A.Single board hardware failure
B.Business is not working properly
C.There is an important alarm on the board
D.Write FLASH operation or software loading in progress

正解:

Question No : 10
Which of the following options is not an advantage of EDFA optical amplifiers?

A.High gain
B.High output power
C.The working optical bandwidth is wide
D.Gain Flattening

正解:

Question No : 11
Which of the following maintenance signals is not a proactive OAM?

A.RDI
B.AIS
C.LT
D.CC

正解:

Question No : 12
If a fiber break occurs between the amplifier OA and the FIU, which of the following alarms will be reported by the system?

A.MUT_LOS
B.R_LOS
C.OTS_LOS
D.OMS_LOS

正解:

Question No : 13
The indicator light of OptiXtrans E6600 LOSn is red and blinks once every 3 seconds. Which of the following is it?

A.The optical port of the single board reports the R_LOS alarm
B.The optical port of the single board reports the MS_RDI alarm
C.The board is not in place
D.The optical module is not in place

正解:

Question No : 14
The path at the GE level is essentially a path at the Client level.

A.True
B.False

正解:

Question No : 15
The OTUCn signal consists of n interleaved frames of 4080 columns and 4 rows, and n can take values of 2, 4, etc., representing 200G and 400G respectively.

A.True
B.False

正解:

Huawei H31-341_V2.5 問題練習