H31-311_V2.5 Practice Exam Tests Latest Updated on Jan-2025 [Q443-Q464]

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H31-311_V2.5 Practice Exam Tests Latest Updated on Jan-2025

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QUESTION 443
Which of the following is not a condition for triggering multiplex section protection (MSP)?

MS-AIS signal detected

Detection of AU-AIS

R-LOS detected

R-LOF detected

QUESTION 444
Which unit is newly added in Liquid OTN?

ODU

OSU

OPU

QUESTION 445
ATM nr.m consists of a maximum of n optical channels multiplexed, r means simplified function (reduced), and non-associated overhead is not supported.

True

False

QUESTION 446
Which of the following statements about the EFS4 circuit board are correct? (Multiple choice)

This board has four FE ports

The board supports Layer 2 switching

This board must be used together with the processed board

The board interface is LC interface

QUESTION 447
FOADM includes parallel FOADM and serial FOADM, both of which support any wavelength up to
40 wavelengths or 80 wavelengths.

FALSE

TRUE

QUESTION 448
Compared with traditional SDH and SONET equipment, which of the following advantages does OTN have? (Multiple choice)

Meeting the transmission bandwidth requirement of each optical Tb/s through wavelength division function

Provide 2.7Gb/s, 10.7Gb/s, 43Gb/s and even 111.8Gb/s high-speed interfaces

Provides up to 5 levels of nested TCM connection monitoring

Support special virtual cascade transmission mode to improve and optimize the network structure

provides powerful out-of-band FEC function, effectively ensuring line transmission performance

QUESTION 449
Compared with PDH, the main advantages of SDH are reflected in which of the following aspects?
(Multiple choice)

Interface Specification

Synchronous multiplexing

Operation and maintenance

Strong compatibility

High frequency band utilization

QUESTION 450
The nominal rate of the OTU4 signal is 111809973.568 kbits, and we can generally consider the line rate to be about 112G.

True

False

QUESTION 451
In the following alarms, which options are detected by the MSA function block? (Multiple choice)

AU-LOP

AU-AIS

MS-AIS

MS-REI

QUESTION 452
If there is no plug board on the hardware, which indicator light on the SSN1PQ1 will light up red?

STAT

ACT

PROG

ARV

QUESTION 453
Which of the following options are insufficient for Erbium-doped Fiber Amplifiers? (Multiple choice)

Gain range is fixed and limited

Optical surge problem

Gain non-flatness

Low noise index

QUESTION 454
If a bit error is detected in the B1 byte, which of the following alarms will be reported by the other end?

MS-AIS

RS-BBE

RS-FEBBE

Not report

QUESTION 455
When setting the monitoring time for network element performance events, which of the following should the time be set to?

Slightly later than the current time

Keep the same time as the previous time of the network element

Earlier than the current time

Random settings

QUESTION 456
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.

True

False

QUESTION 457
Which of the following layers of overhead belong to the electrical layer overhead of OTN? (Multiple choice)

FAS

00S

GCCO

QUESTION 458
Which of the following statements about basic LCAS functions are correct? (Multiple choice)

Automatic discovery of new network elements and links

Bandwidth is dynamically increased or decreased.

Failed members are protected and restored

Provide fault tolerance mechanism to enhance the robustness of virtual concatenation function

QUESTION 459
Which of the following are the service board types for MSTP devices? (Multiple choice).

Interface board

Service processing board

Service processing board with interface

Auxiliary board

QUESTION 460
When a bit error is detected in B2 bytes, which of the following alarms is reported by the peer?

MS-AIS

RS-BBE。

MS-FEBBE

MS-BBE

QUESTION 461
Which of the following statements about clock sources is wrong?

The internal clock source has the lowest priority due to its low accuracy

Generally, the tributary clock is not used as the clock source for the device.

Select the same SSM protocol for all NEs in the clock protection subnet

If the standard SSM protocol is enabled, you need to set the clock source ID

QUESTION 462
APS lossless protection switching provides dual-transmission and selective reception functions for fiber differential protection services, as well as end-to-end delay alignment functions for working and protection paths, thereby improving service reliability.

True

False

QUESTION 463
When configuring LMSP, there are two switching modes: single-ended switching and dual-ended switching. Single-ended switching does not require the protection protocol to be enabled.

True

False

QUESTION 464
Optical module parameter “L-64.2” in “2” indicates which of the following working windows?

880 nm

1310 nm

1550nm

1610nm

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