H31-311_V2.5 Exam Questions

Which of the following is the encapsulation protocol for mapping data signals to SDH&OTN?

Which of the following planes does the ASON network have more than the traditional network?

Which of the following bytes is used for error monitoring of the high-order channel?

Which of the following is the protection method of TPS?

Which of the following is not included in the product highlights of OptiXtrans E6608T/Optix OSN 1800 II?

Which of the following is a characteristic of WDM network expansion?

Which of the following functions does the TNG2AST2 board not support?

Which of the following descriptions of ODUK_PM_BDI is correct?

Which of the following descriptions about full-duplex Ethernet is wrong?

Which of the following protections requires the use of the APS protocol?

Under which of the following scenario combinations can the rerouting and automatic wavelength change functions of the optical layer ASON network be realized?

Which of the following descriptions about the MD02 board is wrong?

Which of the following overheads is used to provide fault type and fault location information?

Which of the following descriptions of the advantages of OTN is wrong?

Which of the following modulation techniques is used in 100G coherent systems?

The refractive index of the core n1 () and the refractive index of the cladding n2 are necessary conditions for the transmission of optical signals in optical fibers.

Which of the following protocols in the OTN standard system involves the optical transport network interface?

In a wavelength division system, after a certain distance of transmission, the optical signal-to- noise ratio of the receiving end signal will be reduced to a certain extent. Which...

Which of the following bytes is used to monitor the bit error of the regeneration section signal stream?

Which of the following descriptions about the Ethernet frame structure is wrong?

By default, if the B2 bit error exceeds which of the following thresholds, a B2-EXC alarm will be generated?

Which of the following is the protection method of TPS?

Which of the following boards is not an optical layer board?

In a wavelength division multiplexing system, when the wave number exceeds how many wavelengths, is it recommended to use an arrayed waveguide grating (AWG)?

The AU pointer indicates the position of the J1 byte of the VC-4 in this frame.

Which of the following is not a basic component of the WDM system structure?

The number of error blocks in each VC4 channel is detected by B3 at the receiving end. At the same time, this information is sent back to the transmitting end by which of the follo...

Which of the following logic function blocks is used to process and generate AU-PTR?

The main difference between an open DWDM system and an integrated DWDM system is whether or not the following technologies are used?

What is the function of the overhead TCM in ODUk?

Which of the following values has the highest clock quality?

Which of the following descriptions about the process of multiplexing ODU1 to ODU2 is correct?

The packet service board can perform L3 layer processing on the accessed large network services.

Which of the following converts non-standard wavelengths into standard wavelengths specified by ITU-T in the WDM system structure?

Which of the following does not belong to wavelength division service adjustment?

Which of the following is not one of the main characteristics of SDN?

When the client-side 1+1 protection uses different routes, the working wavelength and protection wavelength cannot use the same wavelength.

TNV2E224 board does not support which of the following types of protection?

Which of the following descriptions about the EX40 board is wrong?

What is the main reason why the OSC monitoring signal does not pass through the EDFA amplification along with the business signal?

Which of the following is not an advantage of Raman amplifier?

When the line board tuning granularity is ODUflex, which of the following protections can be supported?

EPL service realizes exclusive use of ports and bandwidth. Different users may need to share resources. In order to isolate user data, which of the following methods cannot be used...

The essence of OPSK modulation is to reduce the baud rate of the optical signal by half without reducing the line rate by washing four possible values on the phase of the optical f...

Which of the following optical fibers has the following dispersion characteristics: the dispersion is 0 at 1310nm, and the typical dispersion coefficient is 17ps/nm.km near 1550nm?

If a weak signal light and a strong pump light are transmitted simultaneously in an optical fiber, and the wavelength of the weak signal light is within the Raman gain bandwidth of...

In which ITU-T recommendation is the OTN frame structure defined?

Which of the following modulation technologies is currently used in 100G wavelength division systems?

Which of the following alarms will not trigger an AU-AIS alarm?

What principle of light is used when light propagates in optical fiber?