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Huawei H35-260 - HCSA-Field-Transmission & PTN V1.0

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Total 326 questions

In the PTN network, the 802.1Q label header contains a 2-byte TPID. Which of the following is its standard value?

A.

8100

B.

8847

C.

8147

D.

88A8

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

A.

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.

B.

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

C.

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

D.

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

The U2000 network management supports a variety of external interfaces. Which of the following interfaces can be used when connecting with the network management equipment of other manufacturers?

A.

CORBA

B.

MML

C.

QX

D.

TL1

According to the IEEE 802JQ standard, where is the VLAN ID field on the Ethernet?

A.

Before source MAC address and destination MAC address

B.

Between the source MAC address and the destination MAC address

C.

After the source MA dog address and the destination MAC address

D.

not fixed

1+1 protection means that when the sender sends service flows to both working and protected tunnels at the same time, the receiver selectively receives service flows according to the tunnel

status or external commands.

A.

True

B.

False

Which one is wrong in the description of hardware redundancy backup of PTN7900-32?

A.

SCA board 1+1 backup

B.

XCS board 6+1 backup

C.

3+3/4+4/5+5 backup of power supply

D.

Fan 1+1 Backup

Which of the following reasons may cause bit errors in the business?

A.

The dispersion compensation is unreasonable, such as under-compensation or over-compensation

B.

The optical power of the incoming fiber is too high or too low

C.

The performance of the transmitting laser of the OTU board at the originating end deteriorates

D.

The pigtail connector is seriously polluted

E.

OSC board failure

Which of the following descriptions about EDFA is wrong?

A.

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

B.

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

C.

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

D.

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

In the OSN6800 subrack, when the OTU is inserted in the 17th slot, electrical layer scheduling can be realized

A.

True

B.

False

When the bridge is using ML learning mode, create an entry in the MAC.Address gateway depending on the source MAC map and server port. This entry applies to all VANs

A.

True

B.

False