Which of the following descriptions about the reasons for the continuous adjustment of network element pointers is correct?

The NE clock works in hold mode

The network element is located at the SDH/PDH boundary

The frequency difference between the network element clock and the network clock

There is a phase difference between the network element clock and the network clock

The NE clock works in hold mode

During the debugging of the SDH system, if the E1 port reports a T-ALOS alarm, which of the following actions are meaningful?

Check the E1 wire between D75 and DDF connector

Check whether the E1 port has loopback

Check the E1 wire between D75 and DDF connector

Check the business configuration

Check whether the E1 port has loopback

Which of the following are the basic requirements of the DWDM system for the light source?

Output standard and stable wavelength

Using the method of direct modulation

Which of the following is wrong about the comparison between Raman amplifiers and EDFAs?

The gain calculation/testing method of Raman amplifier and EDFA is consistent, both are "gain = output power - input power"

The Raman amplifier selects different pump sources to amplify signals in different bands, so the Raman amplifier has no gain bandwidth limit in theory, while the EDFA has a range of gain bandwidth

The equivalent noise figure of the Raman amplifier is smaller than that of the EDFA

The gain calculation/testing method of Raman amplifier and EDFA is consistent, both are "gain = output power - input power"

The gain medium of Raman amplifier is transmission fiber: while the gain medium of EDFA is EDF (Erbium Doped Fiber)

Which of the following descriptions about the Optix OSN 9800 subrack are correct?

When the OSN 9800 P18 is used as the slave subrack, the IU18 slot can only be inserted into the service board

When the OSN 9800 universal platform subrack is used as the slave subrack, the main control board must be placed

In the OSN 9800 U32 subrack, IU70 is the active CTU and IU78 is the standby CTU

When the OSN 9800 P18 is used as the slave subrack, the IU18 slot can only be inserted into the service board

When the OSN 9800 universal platform subrack is used as the slave subrack, the main control board must be placed

In the OSN 9800 U32 subrack, IU70 is the active CTU and IU78 is the standby CTU

The OSN 9800 U16 subrack has a total of 16 service slots, these slots have the same capacity, and the maximum support single slot 400bit/s ODUK crossover

Which of the following descriptions about optical power commissioning is wrong?

The single-wave optical power at the receiving end can be calculated accurately according to the total power

During the commissioning process, it is necessary to pay attention to the range of the spectrum analyzer and the OUT board to avoid damage to the board and the spectrum analyzer due to excessive input optical power.

In the case of ensuring that the optical power flatness meets the index requirements, the optical power flatness can be sacrificed to ensure the signal-to-noise ratio flatness

The single-wave optical power at the receiving end can be calculated accurately according to the total power

Too high optical power will cause nonlinear effects. The lower the optical power into the fiber, the smaller the nonlinear effects.

Which of the following descriptions about EDFA is wrong?

The optical monitoring channel of 1510nm can be effectively amplified by EDFA

When the output power of the EDFA reaches saturation, increase the input optical power, and the gain of the EDFA will decrease

The optical monitoring channel of 1510nm can be effectively amplified by EDFA

Noise figure, saturated output power, gain flatness, gain, etc. are all important parameters to characterize EDFA

The amplification of optical signals by EDFA is pure optical amplification without photoelectric conversion.

Which of the following descriptions about single-site commissioning is wrong?

In the case of power failure, you can contact the board without wearing an anti-static wrist or antistatic gloves

After the hardware inspection of the single station is completed, make sure that all power switches are in the off position

It is strictly forbidden to plug and unplug the power plug and PIU single board while electrified

In the case of power failure, you can contact the board without wearing an anti-static wrist or antistatic gloves

If the input voltage of the equipment is not within the required range, a rectification suggestion should be put forward, and power-on is strictly prohibited

Which of the following descriptions about electrical layer service configuration is wrong?

After the logical fiber connection is completed, no path search operation is required, and the OTS path and OMS path can automatically generate the

When the OCh service path exists, create the Client path directly, and the NMS can automatically create the OTUk and ODUk paths

When there is an OCh service path, you can first search for the OTUK path, create the ODUk service layer path, and then create the Client path

When the OCh service path exists, directly create the ODUk path, and the network management can automatically create the OTUk path

After the logical fiber connection is completed, no path search operation is required, and the OTS path and OMS path can automatically generate the

In the WDM transmission system, the main factors that affect the unevenness of the power balance of each channel do not include the following?

Inhomogeneity of insertion loss of each channel of the combiner/demultiplexer

The main channel adjustable optical attenuator setting is unreasonable

Inhomogeneity of insertion loss of each channel of the combiner/demultiplexer

The main channel adjustable optical attenuator setting is unreasonable

The cable attenuation is too high

Which of the following descriptions about optical line protection OLP are wrong?

OLP can only be configured on the FIU line side of each site

Single-ended switching optical line protection requires APS protocol

OLP can only be configured on the FIU line side of each site

Single-ended switching optical line protection requires APS protocol

Segmentation protects the combined optical signal, and separate routing is used between sites

The OLP board is used to protect the line fiber

CAR is deployed on PTN equipment. Which of the following descriptions is wrong?

CBS bursts are marked in yellow

Supports setting the processing mode for CAR-processed packets

The value of PIR is required to be greater than or equal to CIR

Which of the following descriptions about the IS-IS backbone area are correct?

It is composed of all L2 routers (including L1/L2)

Which of the following descriptions about the PTN network deployment ring network intersecting ring are correct?

Each ring operates independently, and when multiple rings intersect, they operate independently in pairs

The intersection point requires business synchronization

Each ring operates independently, and when multiple rings intersect, they operate independently in pairs

The intersection point requires business synchronization

Once the business reaches the intersection, it will choose to cross the ring

Which of the following is the destination MAC address of the Layer 2 header of the data received by the PTN960 from the LTE base station?

MAC of the base station gateway L3VE on the L2/L3 node

The network port MAC of the PTN device connected to the base station

User-side port MAC of the PTN device connected to the base station

MAC of the base station gateway L3VE on the L2/L3 node

The port MAC of the EPC device connected to the core L3PTN

The purpose of setting the upper and lower threshold alarms for performance monitoring through professional network management does not include which of the following?

Facilitates quick troubleshooting

Easy to analyze historical traffic

If the data exceeds the upper and lower limits, the alarm will be reported to the network management as soon as possible

In the report, the data that exceeds the reading value can be identified by the red mark

Facilitates quick troubleshooting

Which of the following descriptions about the daily maintenance SOP is wrong?

Hardware alarms should be cleared in time

PTN cartridges are recommended to be backed up at least once a week

PTN box device requires daily database backup

Hardware alarms should be cleared in time

PTN7900 requires cleaning the dust filter once a year

Huawei H35-260 Practice Test 8 - Free Online Exam Questions 281-320

NE1 and NE2 are the intersection nodes of the SNCP ring and the SNCP ring. How many SNCP protection groups and how many unidirectional cross-connects should be configured on NE1.

Which of the following is correct?

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Huawei H35-260 Practice Test 8

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