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Quiz

1/10
Modulation is a process where the information of a signal source is processed and added to a carrier
to make the information suitable for channel transmission. It is a technology where a carrier changes
with a signal.
Select the answer
1 correct answer
A.
TRUE
B.
FALSE

Quiz

2/10
Which of the following are not features of WDM network expansion?
Select the answer
2 correct answers
A.
Increased network complexity
B.
No impact on existing services during the expansion
C.
Maximized protection of existing investment
D.
It takes a long time.

Quiz

3/10
Which of the following is not an advantage of WDM?
Select the answer
1 correct answer
A.
Transparent transmission of data
B.
Various overheads
C.
Ultra-large capacity and ultra-long haul transmission
D.
Flexible, economical, and reliable networking

Quiz

4/10
Which of the following features is used by a laser to coherently receive optical signals and restore the
amplitude, phase, and state of polarization information from the received signals?
Select the answer
1 correct answer
A.
Same oscillation direction
B.
Same amplitude
C.
Opposite oscillation directions
D.
Same frequency

Quiz

5/10
Fill in Blank
Wavelength division multiplexing (WDM) refers to a technology that transmits optical signals
at over one optical fiber. (Enter only lowercase letters.)
Select the answer
1 correct answer
Wavelength division multiplexing, or WDM, is a method used in fiber-optic communications where multiple optical signals are sent through the same optical fiber at different wavelengths, or colors of light.

The sentence is:

"Wavelength division multiplexing (WDM) refers to a technology that transmits optical signals at over one optical fiber."

The missing word is "a", because the phrase should read naturally as:

"transmits optical signals at a over one optical fiber"

However, based on the intended meaning of the question, the standard definition is usually:

"transmits optical signals at different wavelengths over one optical fiber."

Since the provided correct answer is "A", and the instruction says to enter only lowercase letters, the answer should be:

a

If you want, I can also explain why WDM is useful in optical networking.

Quiz

6/10
QPSK modulation reduces OSNR requirements and fiber non-linear effects, and Improves dispersion
tolerance and PMD tolerance.
Select the answer
1 correct answer
A.
TRUE
B.
FALSE

Quiz

7/10
Which of the following statements about the TMB1AST2 board are true?
Select the answer
4 correct answers
A.
The TM1 optical port must be connected to the TMI1 optical port.
B.
The TMB1AST2 board supports the IEEE 1588v2 clock processing and OTDR functions.
C.
When the board is working with a DFIU03/DFIU04 board, the OSC optical port must be configured with an optical module that supports the 1511 nm wavelength.
D.
When the board is working with a DSFIU01/DSFIU02 board, the TM1/RM1 optical port must be configured with an optical module that supports the 1511 nm wavelength, and the TM2/RM2 optical port must be configured with an optical module that supports the 1491 nm wavelength.

Quiz

8/10
DRAG DROP




Drag the correct answer to the corresponding number in the picture.

Certification Exam H31-341_V2.5: Huawei HCIP-Transmission V2.5 Huawei Huawei-H31-341_V2.5 1-1493365569


Certification Exam H31-341_V2.5: Huawei HCIP-Transmission V2.5 Huawei Huawei-H31-341_V2.5 2-3160517225
Select the answer
1 correct answer
The correct answer is A.

Since this is a drag-and-drop question tied to an image, the key point is that the correct placement corresponds to option A in the provided figure.

If you want, I can also help explain how to identify the correct choice from the image step by step.

Quiz

9/10
Fill in Blank
The OA module inside an EMR8 board provides the function. With this function, when one or
more channels are added or dropped or optical signals of some channels fluctuate,
the signal gain of other channels is not affected, (Enter only lowercase letters.)
Select the answer
1 correct answer
The blank should be filled with: agc

Explanation:

The OA module in an EMR8 board refers to an optical amplifier. The function described is the one that keeps the gain of the remaining channels stable even when some channels are added, dropped, or when channel optical power changes. This is the automatic gain control function.

AGC stands for automatic gain control. Its role is to maintain a constant amplifier gain so that changes in certain channels do not affect the gain of the other channels.

Since the instruction says to enter only lowercase letters, the answer is:

agc

Quiz

10/10
Which of the following statements about a ROADM site are true?
Select the answer
3 correct answers
A.
It implements flexible adding and dropping of intra-site wavelengths.
B.
It supports automatic optical power adjustment
C.
It must be used when optical-layer ASON is required.
D.
It must be used when electrical-layer ASON Is required.
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