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H35-260 Exam Dumps - HCSA-Field-Transmission & PTN V1.0

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Question # 25

In the NG-WDM system, which of the following boards supports optical line protection?

A.

OUT

B.

OLP

C.

DCP

D.

QCP

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Question # 26

The DWDM system has extremely high requirements on the stability of the light source. Which of the following factors will affect the stability of the light source?

A.

Temperature

B.

Drive Current

C.

Packaging

D.

Humidity

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Question # 27

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?

A.

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

B.

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

C.

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

D.

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

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Question # 28

In the PTN network, what are the parameters for measuring QOS?

A.

Delay

B.

Jitter

C.

Bandwidth

D.

Packet Loss Rate

E.

Bit Error Rate

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Question # 29

Both the 1310nm and 1550nm transmission windows are low-loss windows. In the DWDM system, only the 1550nm transmission window is used. Which of the following options is the main reason?

A.

EDFA operating wavelength flat region includes this window

B.

Small nonlinear effects in the 1550nm wavelength region

C.

1550nm wavelength region is suitable for long distance transmission

D.

1550nm window loss is smaller than 1310nm window

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Question # 30

In the MPLS label field of the PTN network, which item is the identification field of the stack bottom label?

A.

Label ID

B.

EXP

C.

CS

D.

TTL

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Question # 31

Which of the following are the possible reasons for the disconnection of network elements?

A.

All the optical paths to the NE are faulty

B.

Failure of the main control board of the network element

C.

The gateway network element connection is interrupted

D.

The device is running

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Question # 32

In the PHBÌ‚ category of common FTN service flows, which of the following corresponds to the voice service?

A.

CS

B.

AF

C.

BE

D.

EF

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