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Huawei Certified Internetwork Expert-Transmission Sample Questions:

1. After the single main control is replaced with the main control, the new main control is inconsistent with the previous failed main control software, which alarm may be reported by the network element

A) SWDL_CHGMNG_NOMATCH
B) SWDL_PKGVER_MM
C) SWDL_PKG_NOBDSOFT
D) SWDL_INPROCESS

2. The networking of a certain wavelength division network is shown in the figure.

Now due to the needs of new business, there are 2 waves that need to be up and down at site B, that is, the OLA site needs to be transformed into a back-to-back OTM site. The error described below is

A) Need to recalculate the design signal-to-noise ratio of each segment AB, BE, AE, and evaluate whether the designed signal-to-noise ratio can meet the needs of business reception
B) The site type is transformed from OLA to back-to-back OTM. It is necessary to add boards such as M40/D40/OA/OUT. It is necessary to evaluate whether the existing network subrack slots are sufficient. Subrack
C) Since the original network dispersion is normal compensation, it is not necessary to adjust the dispersion after network transformation
D) Perform optical power budget for the new service hop, and redesign the power of the reconstructed site according to the requirements of the back-to-back OTM site. If possible, add an optical amplifier board.

3. Which of the following is the error about the optical power commissioning?

A) For 10G and 2.5G systems, adjust the received optical power of the wavelength conversion board to "high 3 low 5", which is 3dB higher than the receiving sensitivity and 5dB lower than the overload point.
B) The actual gain upper threshold of an OAU is smaller than the nominal gain upper threshold, indicating that the performance of the OAU board is degraded and it is recommended to replace it.
C) Adjust the VOA (adjustable optical attenuation) in front of the optical amplifier board so that the input optical power of the board = the input single-wave nominal optical power + 10lgN, where N is the actual wave number. If it is not adjusted to the nominal value, adjust the VOA attenuation to the minimum.
D) Adjust the OAU gain of the optical amplifier board to make the output optical power reach the standard.

4. What are the principles of synchronous Ethernet planning? (multiple choice)

A) When there is no BITS or other high-precision external clock equipment, it is recommended that the network element track the line clock source
B) When stopping the SSM protocol, do not configure the clock as a ring in this network. When starting the SSM protocol, the SSM protocol information of all network elements in the network must be set to be consistent
C) When there is BITS or other high-precision external clock equipment, it is recommended that the network element use the tracking external clock source
D) The internal clock source is recommended as the lowest level clock source

5. SYNLOCK V3 devices can achieve different clock accuracy levels through different board configurations. Which of the following is SYNLOCK V3 available? (multiple choice)

A) LNC
B) TNC
C) LPR
D) SEC

Solutions: