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Huawei Certified Internetwork Expert-Transmission Sample Questions:

1. Regarding the OSNR test of the OTN system, which of the following statements is correct? () (multiple choice)

A) The out-of-band noise interpolation method refers to inserting the noise of the instrument to replace the actual noise of the system
B) OptiX OSN8800/6800 equipment MCA online test 100G wavelength OSNR also uses the shutdown method
C) The 40G and 100G wavelengths overlap due to the signal spectrum, and the OSNR value tested by the traditional OSA test method is low
D) The integral method test OSNR is also called the turn-off method, and the channel business will be interrupted during the test. And in the case of a small number of waves, the OSNR value measured by the integral method has a certain deviation from the true value
E) After the wavelength signal passes through a filter device such as D40, the noise power between channels will be reduced, so the OSNR value of the traditional OSA test is higher
F) When using OSA to test OSNR, because the noise in the signal band cannot be directly tested, the out-of-band noise interpolation method is adopted to calculate the noise in the band

2. The optical power of one wave is 3dBm, and the optical power of the other wave is 5dBm. The total optical power after the two waves are combined is 3+5 = 8dBm

A) TRUE
B) FALSE

3. In the Solaris dual-system hot backup system, using "ls -l" to query the file1 file information is "-rwxr-xr-- 2wjm newservice 321 Oct 17 09: 33 file1" The following statement is wrong ()

A) The fifth field "321": indicates that the size of the file is 321kb
B) The 8th-10th character "r--": indicates that the rights of other users to file1 are readable, not writable, and not executable"
C) Characters 2-4 "rwx": indicates that the file owner wjm's rights to file1 are readable, writable and executable
D) Characters 5-7 "rx": indicates that the rights of all users in this user group newservice to the file file1 are: readable, not writable, executable

4. 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) 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
D) For optical layer ASON and electrical layer ASON applications, setting "optical relay mode" and "electrical relay mode" has no effect on the system

5. Which of the following information needs to be paid attention to when the TOA board opens the GE service (multiple choice)

A) MTU value
B) Ethernet VLAN information
C) Ethernet working mode
D) Docking module type

Solutions: