Online Access Free H31-341_V2.5 Practice Test

When the loopback method is used, the objects to be replaced can be optical fibers, boards, fiber adapters, optical attenuators, or power supply devices.

• A.TRUE
• B.FALSE

Which of the following tools are commonly used in WDM network commissioning? (Choose all that apply.)

• A.Screwdriver
• B.Optical spectrum analyzer
• C.Multimeter
• D.Optical power meter

Which of the following statements about QPSK modulation are false?

• A.QPSK modulation can increase the spectral bandwidth, reduce the OSNR requirement and non-linear effects in optical fibers, and improve the dispersion tolerance and PMD tolerance.
• B.QPSK assigns two possible phase values in the optical field. This decreases the baud rate of optical signals by half while keeping the line rate unchanged.
• C.In QPSK, one phase represents two bits, which is also equivalent to splitting a data stream into two, reducing the data rate by half.
• D.ePDM-QPSK is a preferred modulation format for 100G WDM transmission.

In troubleshooting scenarios, misoperations may interrupt services. Which of the following is not a possible cause?

• A.Channel protection is configured incorrectly.
• B.The AIS maintenance signal is enabled.
• C.Automatic alarm reporting is disabled.
• D.The transmit and receive FEC modes do not match.

When the loopback method is used, the objects to be replaced can be optical fibers, boards, fiber adapters, optical attenuators, or power supply devices.

• A.TRUE
• B.FALSE