H31-311_V2.5 Exam Questions
702 real H31-311_V2.5 exam questions with expert-verified answers and explanations. Page 12 of 15.
- Question #551WDM/OTN Principles
Which of the following layers of overhead belong to the electrical layer overhead of OTN? (Multiple choice)
OTN overheadFASGCC0electrical layer PM - Question #552Huawei Transmission Equipment Introduction
Which of the following options belong to optical layer boards? (Multiple choice)
optical layer boardsOADMoptical monitoring channelspectral analysis board - Question #553Huawei Transmission Equipment Introduction
Which of the following types of Ethernet can be divided into? (Multiple choice)
Ethernet typesGE10GEFast Ethernet FE - Question #554SDH Transmission Principles
Which of the following steps are required to multiplex a -4 signal into an STM-N signal? (Multiple choice)
STM-N multiplexingmappingpositioningSDH hierarchy - Question #555Huawei Transmission Equipment Introduction
When a device that supports auto-negotiation is connected to a device that does not support auto- negotiation, a duplex mode mismatch may occur. What are the manifestations? (Multi...
auto-negotiationduplex mismatchEthernetcommunication rate - Question #556WDM/OTN Principles
Coherent reception uses a local oscillator laser of the same frequency to coherently receive the optical signal. Which of the following information can be recovered from the receiv...
coherent receptionlocal oscillator lasersignal recoverypolarization state - Question #557SDH Transmission Principles
Which overhead bytes of SDH are used by the LCAS function to carry control information and perform handshake operations between the source and sink? (Multiple choice)
LCASH4 byteK4 byteSDH overhead handshake - Question #558WDM/OTN Principles
Which of the following site types support business up and down? (Multiple choice)
FOADMROADMOTM siteadd/drop multiplexing - Question #559SDH Transmission Principles
Which of the following options are needed to directly send a low-speed signal from a high-speed signal? (Multiple choice)
TU-PTRAU-PTRSDH pointersignal demultiplexing - Question #560Huawei Transmission Equipment Introduction
Which of the following options are included in the alarm level in the NCE-T system? (Multiple choice)
NCE-Talarm levelsalarm classificationnetwork management - Question #561WDM/OTN Principles
Which of the following descriptions about 1+1 and 1:1 optical line protection are wrong? (Multiple choice)
optical line protection1+1 protection1:1 protectionOLP switching - Question #562Huawei Transmission Equipment Introduction
In which of the following types of cabinets can the Optix OSN 9800 U32 standard subrack be installed? (Multiple choice)
OptiX OSN 9800U32 subrackcabinet installationequipment housing - Question #563Optical Fiber Communication Fundamentals
Which of the following options are the main characteristics of the transmission network? (Multiple choice)
transmission networknetwork characteristicsreliabilitylarge capacity - Question #564WDM/OTN Principles
Which of the following descriptions about MS-OTN are wrong? (Multiple choice)
MS-OTNlayer architectureODUk switchingMPLS-TP - Question #565Huawei Transmission Equipment Introduction
Which of the following options are correct in describing the system architecture of the Optixtrans E9600/OptiX OSN 9800 product? (Multiple choice)
OptiXtrans E9600OSN 9800system architecturelayer switching - Question #566WDM/OTN Principles
Which of the following layers of overhead belong to the electrical layer overhead of OTN? (Multiple choice)
OTN overheadelectrical layer overheadPMGCCO - Question #567Optical Fiber Communication Fundamentals
Which of the following options meet the advantages of erbium-doped fiber amplifiers? (Multiple choice)
EDFAerbium-doped fiber amplifieroptical amplifier gaincoupling efficiency - Question #568SDH Transmission Principles
From the perspective of single board implementation, what are the main types of ESC? (Multiple choice)
ESCembedded service channelDCCsingle board types - Question #569SDH Transmission Principles
Which of the following options are common signal failure alarms? (Multiple choice)
signal failure alarmR_LOFR_LOSB2_EXC - Question #570Optical Fiber Communication Fundamentals
EDFA (Erbium Doped Fiber Amplifier) is a key component of the new generation of optical communication systems. Which of the following options are included in its characteristics?
EDFAoptical amplifieroutput powernoise figure - Question #571SDH Transmission Principles
Which of the following alarms or events are conditions for SNCP switching? (Multiple choice)
SNCPprotection switchingAU_LOPTU_AIS - Question #572Huawei Transmission Equipment Introduction
Which types of destination MAC addresses in Ethernet frames can be classified into? (Multiple choice)
EthernetMAC addressunicastbroadcast - Question #573WDM/OTN Principles
Which of the following options are correct regarding 1:1 optical line protection? (Multiple choice)
1:1 optical line protectionAPS protocolsingle-end switchingdouble-end switching - Question #574SDH Transmission Principles
What are the advantages of ESC? (Multiple choice)
ESCredundant backupoptical power budgetsystem complexity - Question #575Optical Fiber Communication Fundamentals
Which of the following wavelengths can be used as pump light sources? (Multiple choice)
EDFApump wavelength980nm1480nm - Question #576SDH Transmission Principles
SDH signals need to be scrambled before being transmitted on optical fiber. Which of the following bytes are not scrambled? (Multiple choice)
SDH scramblingframing bytesA1 A2overhead bytes - Question #577WDM/OTN Principles
Which of the following alarms will definitely trigger optical line protection switching? (Multiple choice)
optical line protection switchingalarm triggeringMUT_LOSPOWER_DIFF_OVER - Question #578WDM/OTN Principles
Which of the following options are included in the advantages of Liquid OTN? (Multiple choice)
Liquid OTNOTN advantagesultra-low latencyubiquitous connectivity - Question #579WDM/OTN Principles
Which of the following are the benefits of polarization multiplexing technology? (Multiple choice)
polarization multiplexingPDM-QPSKOSNRoptical spectrum width - Question #580WDM/OTN Principles
When a FAS anomaly is detected, what are the possible options for reporting alarms? (Multiple choice)
FAS anomalyOTN alarmOTUk LOFODUK LOFLOM - Question #581Huawei Transmission Equipment Introduction
Which of the following service interfaces does the transport network equipment provide? (Multiple choice)
service interfacesPDHEthernetPCM - Question #582SDH Transmission Principles
Which of the following factors will trigger the automatic switching of the multiplex section protection ring? (Multiple choice)
MSP ringprotection switchingB2 errorsR_LOS - Question #583SDH Transmission Principles
A and B are adjacent network elements. If A sends B with B3 and low-order errors, and B sends A with B1, B2, B3 and low-order errors, which of the following options are included in...
performance monitoringB1 B2 B3 errorsFEBBEBER events - Question #584WDM/OTN Principles
Which of the following options are considered to be deficiencies of OTN? (Multiple choice)
OTN limitationsODUk granularitybandwidth flexibilitylatency - Question #585WDM/OTN Principles
Which of the following options are available for ODUk SNCP switching conditions? (Multiple choice)
ODUk SNCPprotection switchingOTUK_LOFOTN alarms - Question #586WDM/OTN Principles
Which of the following options are correct for describing Directed scenes? (Multiple choice)
directed scenesASONwavelength routingnon-ASON networks - Question #587WDM/OTN Principles
Compared with WDM, which of the following options are the advantages of OTN? (Multiple choice)
OTN vs WDMOAMprotection optionsscheduling flexibility - Question #588SDH Transmission Principles
Which of the following options are included in the advantages of TDM equipment? (Multiple choice)
TDM advantagesfiber savingslarge capacitynetworking flexibility - Question #589Huawei Transmission Equipment Introduction
What are the options for the switch's switching mode? (Multiple choice)
Ethernet switchstore-and-forwardswitching modesfragment isolation - Question #590Huawei Transmission Equipment Introduction
Which of the following descriptions about ROADM boards are wrong? (Multiple choice)
ROADMRMU9 WSM9 WSD9wavelength add/dropdynamic wavelength configuration - Question #591SDH Transmission Principles
Which of the following descriptions of self-healing networks are correct? (Multiple choice)
self-healing networkautomatic restorationcross-connectionbackup routing - Question #592Optical Fiber Communication Fundamentals
What are the options for the central wavelength of the pump source in the EDFA structure? (Multiple choice)
EDFApump laser wavelength980nm 1480nmoptical amplifier - Question #593SDH Transmission Principles
The two-fiber bidirectional multiplexing segment shared protection ring requires that the master and standby boards be inserted in dual slots.
two-fiber bidirectional MSP ringshared protectiondual slot configurationprotection ring - Question #594WDM/OTN Principles
FOADM sites can be divided into parallel FOADM and serial FOADM. When the number of waves is large, it is recommended to use parallel FOADM.
FOADMparallel FOADMserial FOADMwavelength count - Question #595WDM/OTN Principles
SOTU stands for Single Optical Transport Unit Interface, and MOTU stands for Multiple Optical Transport Unit Interface.
SOTUMOTUOTN interface typesoptical transport unit - Question #596Optical Fiber Communication Fundamentals
In a plane perpendicular to the transmission direction, the optical signal field can have two mutually orthogonal and independent vibration directions, generally named X polarizati...
polarization multiplexingPDMX Y polarizationoptical modulation - Question #597Huawei Transmission Equipment Introduction
The RI1/TO1 optical port of the OLP board can be used as both a working channel and a protection channel.
OLP boardoptical line protectionworking channelprotection channel - Question #598Huawei Transmission Equipment Introduction
UNS5 board supports mixed transmission of OTN services, SDH services and packet services with a total bandwidth not exceeding 200Gbit/s.
UNS5 boardmixed servicesOTN SDH packet200Gbit/s bandwidth - Question #599Optical Fiber Communication Fundamentals
Nonlinear effects are closely related to optical power. To prevent nonlinear effects, the total optical power on the optical fiber should be less than 29dBm.
nonlinear effectsoptical power threshold29dBmfiber nonlinearity - Question #600Huawei Transmission Equipment Introduction
A subnet can contain other subnets.
subnetnetwork topology hierarchyNMSnetwork management