H12-931-ENU練習問題集で検証済みで更新された320問題あります [Q108-Q123]

H12-931-ENU練習問題集で検証済みで更新された320問題あります

更新されたH12-931-ENU試験問題集でPDF問題とテストエンジン

質問 108
If the low-level crossover of SDH equipment is exhausted, there are several common optimization schemes (multiple choice)

A. Replace the circuit board
B. Routing time slot optimization
C. Replace the high-capacity cross board
D. Change channel protection to multiplex section protection
E. Upgrade host software

正解: B,C,D

質問 109
If OSS is connected to the CORBA interface, a session connection is established between U2000 and OSS. Regarding the session connection, which of the following descriptions is wrong?

A. There is also a response timeout time between the OSS system and the notification service, which can be set by the customer according to the network situation
B. After the session connection is established, the U2000 CORBA interface will periodically call back the ping method of the upper-layer network management registration object NMSSession_I (the ping here is the ping command usually referred to)
C. U2000 CORBA agent will actively send a heartbeat notification to OSS every 30s, its main purpose is to detect the service status of the notification service
D. The CORBA agent will continue to ping the Oss, and the connection will be disconnected if there is no response for 4 times

正解: B

質問 110
Which of the following descriptions are correct in daily maintenance?

A. For the convenience of collecting data, if you don't know the customer, you can directly create a network element user to collect data
B. During the cutover process, it is found that other unrelated network elements report an alarm, but the customer does not know that it will be processed directly
C. Without the authorization of the customer, the network management performs configuration data operations
D. Unplug and plug the board with the customer's consent

正解: D

質問 111
Commonly used test instruments for WDM system include? () (multiple choice)

A. Optical power meter
B. Spectrum Analyzer
C. 2M BER tester
D. Optical Time Domain Reflectometer
E. Data Service Tester
F. Multimeter

正解: A,B,D,E,F

質問 112
Which of the following statements about the ALC function and configuration principles of the OTN system is correct? () (multiple choice)

A. It is recommended that the number of network elements in the ALC link is less than 20, otherwise the ALC adjustment may time out and cause failure
B. The detection and reference unit of the first node cannot use the same optical port of the same board
C. Each ALC link has a unique ID, and ALC nodes can belong to different DCN subnets
D. The "working mode" of the OA board and RAU1/RAU2 board must be configured as "gain lock", if it is configured in other modes and ALC is configured, the ALC will not be adjusted
E. If there are two cascaded OA boards in the node, the first node only configures the second OA board as the reference unit, and do not deploy the power detection unit
F. The ALC function can automatically adjust the output optical power of the amplifier in which the line attenuation changes. Except for the first site, other sites must be equipped with power detection units

正解: B,C,D,E,F

質問 113
OTN needs to change the original single-wave pass-through from D40 to M40 to use NQ2 as a relay. The error described below is

A. When you do not need to relay in cross mode, at this time, the NQ2 fiber connection (take 1 optical port as an example) is the westward direction of IN1 port and the eastward direction of OUT1 port.
B. It can be relayed in cross mode, and cross board needs to be configured at this time
C. For optical layer ASON and electrical layer ASON applications, setting "optical relay mode" and "electrical relay mode" has no effect on the system
D. When the NQ2 adopts the relay board mode, the ASON is not turned on. For the end-to-end path, the electrical relay mode is required

正解: D

質問 114
Which of the following abnormal conditions will trigger the TPS protection switching of the PTN equipment?

A. The business interface of the working interface board is loose
B. The work processing board is offline
C. The working interface board is offline
D. Business interruption caused by non-hardware reasons on the work processing board

正解: B

質問 115
If the meter sending data frame rate is X and receiving data frame rate is Y, then the packet loss rate = (XY) /X*100%, usually the packet loss rate + throughput = 1

A. TRUE
B. FALSE

正解: A

質問 116
The IP address you use is 165.247.52.119, and the subnet mask is 255.255.240.0. Which subnet is your host?

A. 165.247.52.0
B. 165.247.32.0
C. 165.247.48.0
D. 165.247.56.0

正解: C

質問 117
Regarding the 10G/100G mixed transmission wavelength isolation band, is the following statement wrong? ()

A. The mixed transmission cost is related to the number of transmission spans, the width of the isolation band, and the FEC encoding method
B. The coherent signal starts from the long wavelength, and 10G starts from the short wavelength, with an isolation band in between
C. The isolation band can be filled with 40G DQPSK wavelength or 40G ODB wavelength
D. In order to avoid rerouting into the isolation band, the optical layer ASON prohibits 10G and coherent mixed optical layer ASON

正解: C

質問 118
Optical wavelength sharing protection OWSP is used to configure the ring-type network of distributed services, and realizes the protection of all the distributed services between all sites by occupying two different wavelengths.

A. TRUE
B. FALSE

正解: A

質問 119
NE1\NE2\NE3 forms a chain network. There are VC4 other services between NE1 and NE3. NE2 is a pass-through site. After the configuration is completed, NE3 site reports the HP-SLM alarm of C2 byte mismatch.
What are the detection points at this time? (multiple choice)

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

正解: C,D

質問 120
NE1, NE2, NE3, NE4, and NE5 form an MSP ring, and there is an STM-1 link between NE1 and NE3. An SNCP VC-4 service is created between NE1 and NE3. The working source of this VC-4 service is on the MSP working path, and the protection source is on the STM-1 link. SNCP delay time is 100ms. When a fiber break occurs for the first time (between NE1 and NE2), the MSP switches normally. When the fiber is cut for the second time in the MSP ring (between NE3 and NE5), the SNCP service is interrupted and no SNCP protection switching occurs.
What are the solutions?

A. Set HP_UNEQ alarm as SNCP switching trigger condition
B. Remove NE4
C. Delete delay time
D. Change the rate of STM-1 to STM-4

正解: A

質問 121
In the point-to-point WDM networking scenario, the signal-to-noise ratio of a certain single wave is low, and the other channels are normal. The reason is that it is impossible?

A. The attenuation of the pigtail from the OTU board corresponding to this wave to the multiplexer increases
B. The transmit optical power of the OTU board corresponding to this wave has decreased
C. The gain slope of the amplifier changes
D. Increased attenuation on the light path

正解: D

質問 122
OAU gain is continuously adjustable, and the noise figure (NF) is different under different gain conditions, generally the larger the gain, the smaller the noise figure