Huawei h31-341-v2-5 practice test

Question 1

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.

• A. TRUE
• B. FALSE

Question 2

Which of the following are not features of WDM network expansion?

• 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.

Question 3

Which of the following is not an advantage of WDM?

• A. Transparent transmission of data
• B. Various overheads
• C. Ultra-large capacity and ultra-long haul transmission
• D. Flexible, economical, and reliable networking

Question 4

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?

• A. Same oscillation direction
• B. Same amplitude
• C. Opposite oscillation directions
• D. Same frequency

Question 5

Fill in Blank
Wavelength division multiplexing (WDM) refers to a technology that transmits optical signals
at____over one optical fiber. (Enter only lowercase letters.)

Question 6

QPSK modulation reduces OSNR requirements and fiber non-linear effects, and Improves dispersion
tolerance and PMD tolerance.

• A. TRUE
• B. FALSE

Question 7

Which of the following statements about the TMB1AST2 board are true?

• 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.

Question 8

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

Question 9

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.)

Question 10

Which of the following statements about a ROADM site are true?

• 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.

Question 11

Which of the following fiber types complies with the description that the dispersion at 1310 nm is 0
and the typical dispersion coefficient around 1550 nm is 17 ps/nm.km?

• A. G.654
• B. G.652
• C. G.655
• D. G.653

Question 12

Which of the following statements about the OptiXtrans E6600/OptiX OSN 1800 system architecture
Is true?

• A. The OptiXtrans E6608T/E6608/E6616 and OptiX OSN 1800 II TP/OSN 1800 II Pro/OSN 1800 V Pro use the L0+L1+L2 system architecture.
• B. The OptiXtrans E6608T/E6616 and OptiX OSN 1800 II TP/OSN 1800 V Pro use an L0+L1+L2 system architecture.
• C. The OptiXtrans E6616 and OptiX OSN 1800 V Pro use an L0+L1+L2 system architecture.
• D. The OptiXtrans E6608T/E6608 and OptiX OSN 1800 II TP/OSN 1800 II Pro use an L0+L1+L2 system architecture.

Question 13

Which of the following statements about ODUflex are true?

• A. Users can flexibly configure the ODUflex capacity based on the service volume.
• B. The ODUflex rate is defined as N x 1.25 Gbit/s. The ODUflex bandwidth is adjusted by changing the value of N.
• C. ODUflex improves bandwidth utilization.
• D. The TOA board does not support ODUflex.

Question 14

An RDU9 board can dynamically demultiplex any wavelength to any port.

• A. TRUE
• B. FALSE

Question 15

Which of the following terms has the meaning that "the wavelength carrying local services can be
transmitted to a specific direction"?

• A. Directioned
• B. Directionless
• C. Colorless
• D. Colored