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H31-311_V2.5 Questions and Answers

Question # 6

When using the LCAS function, which of the following overhead bytes is used to transmit control information? (Multiple Choices)

A.

M1

B.

H4

C.

K2

D.

K4

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Question # 7

The number of ODU2e signals multiplexed into the ODU3 signal is the same as the number of ODU2 signals multiplexed into the ODU3 signal

A . yes

B. False

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Question # 8

Which of the following technologies is the main difference between an open DWDM system and an integrated DWDM system?

A.

Wavelength conversion techniques

B.

Optical release technology

C.

Multiplexing/multiplexing technique

D.

Optical supervision technology

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Question # 9

In MSP networking, when the optical fiber is connected between sites, the east light plate of the site is connected to the west light plate of the downstream site, and these stations are connected in turn to form a ring. In this case, the direction from the toko plate of the site to the wine light plate of the downstream station is the direction of the main ring, and the direction of forming the ring is the direction of service.

A.

True

B.

Error

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Question # 10

When the SNCP ring consisting of four Optis OSN 2500 devices has a rate of 25 Gbt/s, the network's service answer stars can carry up to ()2Mt/s Signal.

A.

504

B.

1008

C.

2016

D.

4032

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Question # 11

Fiber loss includes bending loss, absorption loss and scattering loss.

A.

True

B.

False

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Question # 12

Linear MSP (LMSP) has two modes: 1+1 and 1:1. Additional services can only be configured for the protection channel in 1:1 mode of the LMSP.

A.

True

B.

Error

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Question # 13

Which of the following statements about the EFS4 board are correct? (Multiple choice).

A.

The board has four FE ports. .

B.

The board supports three layers of text exchange. .

C.

The plate must be used with the processing plate.

D.

The board interface is the LC interface.

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Question # 14

According to the formula "ODUk rate = 239/(239k) x STM-N frame rate", ODU4 The rate is equal to the 239/235xSTM-N Pa rate.

A.

True

B.

False

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Question # 15

The backplane has two 48V power cords, and each board gets two -48V power supplies from the backplane. After combining the power supply via diodes, the various voltages required for each component are obtained by means of a DC/DC power module and a linear mane swap.

A.

True

B.

Error

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Question # 16

Suppose 2 VC-12 time slots need to be bound to the VCTRUNK1 of the N2EFS4 board. When there are 8 VC4 slots on the N2EFS4 board, which of the following slots meets the requirements?

A.

VC-12 time slot 1 and 2 for the first VC4

B.

VC-12 time slots for the second VC4 33 and 34

C.

VC-12 time slots 1 and 2 for the fourth VC4

D.

VC-12 Time slots 1 and 2 for the 8th VC-4

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Question # 17

Which of the following are communication quality alerts? (Multiple choice).

A.

Optical port loopback

B.

There is no login user

C.

NE communication in the

D.

Optical signal loss

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Question # 18

Which of the following local maintenance endpoints can be used to manage MSTP devices?

A.

U2000LCT

B.

U2000WebLCT

C.

U200IP LCT

D.

All of the above

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Question # 19

Which of the following device domains can be managed by U2000? (Multiple choice).

A.

Transport equipment

B.

Wireless device

C.

Data communication device

D.

Access device

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Question # 20

The refractive index n1 of the fiber core must be the Q of the cladding refractive Mo n2, which is a necessary condition for transmitting the optical signal in the optical fiber.

A.

is higher than

B.

Below

C.

Equal

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Question # 21

Optical module parameter "L-64.2" in the "2" indicates which of the following working windows?

A.

880 nm

B.

1310 nm

C.

1550hm

D.

1510tm

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Question # 22

For (on-premises) HA solutions where active and standby servers are deployed in the same location, which of the following platforms can be deployed? (Multiple choice).

A.

Windows

B.

Solaris

C.

SuSE Linux

D.

All of the above

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Question # 23

When the U2000 is synchronized, the same network metadata as the U2000 is not uploaded to the U2000, and the data that exists on the U200 but does not exist on the network element is deleted.

A.

True

B.

False

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Question # 24

For 100G (112Gbit/s) signals, the actual data baud rate is only 28G amplitude.

A.

True

B.

Error

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Question # 25

OTM nr.m consists of up to n " multiplexed channels and does not support non-channel-related overhead. The letter "r" indicates a decrease in functionality.

A.

True

B.

Error

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Question # 26

After the U2000 sends configuration data to the network element, if the SCC single board authentication fails, the network element enters the installation state.

A.

True

B.

Error

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Question # 27

Which of the following statements about the MSP ring is correct? (Multiple choice).

A.

The number of nodes on the MSP ring cannot exceed 16. .

B.

Create a protection sub and select only the SDH network element. Do not select REG or WDM network elements.

C.

When multiple protection subnets occupy the same port on the same board, "resource sharing" must be reached.

D.

is assigned by VC4 means that different VCs4 are assigned to different protection subnets to implement MsPs only in certain channels

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Question # 28

The clock unit can only access the external clock source as the timing signal source of the system through the external clock interface. In addition; It can also output a processed clock and provide a clock source for other devices that need timing.

A.

True

B.

False

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Question # 29

NE A and NE B are adjacent NE

If B3 and low-order errors occur in the A->B direction, and B1, B2, B3, and low-order errors occur in the B->A direction, it is caused by Which of the following performance events does NEA report? (Multiple choice).

A.

RSBEE

B.

RSFEBE

C.

MSBBE

D.

MSFEBBE

E.

HPBBE

F.

HPFEBBE

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