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Exam Code:	H31-341_V2.5
Exam Name:	HCIP-Transmission V2.5
Certification Provider:	Huawei
Free Question Number:	454
Version:	v2025-08-14
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Exam Question List: Question 1: Which standard encapsulation protocols are defined in MSTP? ...; Question 2: When performing fiber synchronization, the network element d...; Question 3: In coherent systems and non-standard fiber entry scenarios, ...; Question 4: After the U2000 delivers configuration data to the NE, if th...; Question 5: Which of the following alarms can trigger the 1+1 protection...; Question 6: In any scenario, hard reset of the main control board will c...; Question 7: Which of the following are the main reasons why OSC monitori...; Question 8: When congestion occurs, queuing strategies can be varied. If...; Question 9: In the fault handling scenario, which of the following descr...; Question 10: In the scenario of setting the timeout period type of the LA...; Question 11: Which of the following description about ODUk ring network p...; Question 12: When the sender detects that the b6-b8 of the K2 byte is 110...; Question 13: Which of the following costs is not included in the OOS cost...; Question 14: Which of the following descriptions about ODUflex are correc...; Question 15: Direct modulation is also called EA modulation. It does not ...; Question 16: Which of the following description about single-station comm...; Question 17: The performance indicators of the OTN circuit board focus on...; Question 18: After configuring the PDH service on a per network element b...; Question 19: Which of the following boards can realize the broadcast func...; Question 20: When a signal with a standard Ethernet frame length of 64Byt...; Question 21: Items for daily equipment maintenance, excluding:...; Question 22: Which of the following descriptions about MPLS and PWE3 are ...; Question 23: Which of the following is the adjustment unit of AU-PTR?...; Question 24: Which of the following is the overall structure of the WDM s...; Question 25: When multiple alarms are reported, the priority principle of...; Question 26: Which port of the M40 is the output of the 3THz wavelength O...; Question 27: For a system without an optical amplifier, the upper thresho...; Question 28: Which of the following description of equipment operation is...; Question 29: Among the following boards, which boards support Ethernet L2...; Question 30: Establish an Ethernet private line service between H (HQ) an...; Question 31: In the fault handling scenario, the loopback method is one o...; Question 32: For OSN series equipment, when the standby board is normal, ...; Question 33: When the LCK is inserted at the Pl overhead of the ODUk at t...; Question 34: TEM28 is an Ethernet aggregation tributary board. Which of t...; Question 35: Which of the following descriptions about optical layer sche...; Question 36: Which of the following is the class B address 154.19.2.3 net...; Question 37: The rigid pipes that MS-OTN equipment can provide include? (...; Question 38: For coherent system commissioning, according to the optical ...; Question 39: For Huawei equipment, the NODE ID is the unique identifier o...; Question 40: The basic principle of fault location is to accurately locat...; Question 41: OOS overhead is non-associated overhead. Which of the follow...; Question 42: The input optical power of an OAU101 board in a network is -...; Question 43: The path at the GE level is essentially a path at the Client...; Question 44: WDM is a technology that simultaneously transmits () optical...; Question 45: When using the LCAS function. Which of the following overhea...; Question 46: What are the main functions of LAG? (Multiple choice)...; Question 47: Which of the following statements about basic LCAS functions...; Question 48: Which of the following options is the low-loss area of singl...; Question 49: Which of the following is the maximum service capacity on th...; Question 50: Which of the following is correct in describing the order in...; Question 51: The subnet mask of 255.255.255.248 is calculated according t...; Question 52: The UITL board belongs to the optical multiplexing and demul...; Question 53: Which of the following is the object protected by the channe...; Question 54: The technology of recovering amplitude, phase and polarizati...; Question 55: Which of the following descriptions about the AU pointer are...; Question 56: Which of the following description of the contents of the ca...; Question 57: Which of the following statements about the alarm reversal f...; Question 58: By summarizing the OTU1/2/3 frame rate, the calculation form...; Question 59: Before creating an optical cross-connect, it is necessary to...; Question 60: Which of the following is the monitoring overhead for monito...; Question 61: Which of the following is the basic requirement of the DWDM ...; Question 62: Which of the following descriptions about optical line prote...; Question 63: Which of the following descriptions about OSNR is wrong?...; Question 64: Which of the following reasons may cause bit errors in the b...; Question 65: If a network port that supports auto-negotiation is connecte...; Question 66: Which of the following descriptions about the business bound...; Question 67: Coherent reception uses a local oscillator laser of the same...; Question 68: Which of the following time periods is the information of th...; Question 69: Since the EALC/ALC function is used in the SOM system, the s...; Question 70: The reason for bit errors is mainly the () and () of the tra...; Question 71: When performing fiber synchronization, the network element d...; Question 72: Among the following boards, whether the protection is config...; Question 73: The unprotected chain consists of four network elements: NE1...; Question 74: In MRPS protection, when a fault occurs, the Raw label is sw...; Question 75: The OAU board at the 48-wave OTM site completes signal ampli...; Question 76: Which of the following items does the basic structure of a W...; Question 77: Pointer adjustment is related to which of the following?...; Question 78: The value range of AU-PTR is 0~782. Which of the following a...; Question 79: The basic principle of MSTP equipment fault location is? (Mu...; Question 80: Which of the following descriptions about TunnelAPS protecti...; Question 81: Which of the following elements does a data communication ne...; Question 82: Which of the following descriptions about the commissioning ...; Question 83: The cross-connect capacity of the NG SDH system is determine...; Question 84: What operation does the PROG indicator of the NG WDM device ...; Question 85: The four elements of the WDM network are () dispersion, () a...; Question 86: Both OTUCn and ODUCn can complete the functions of digital f...; Question 87: The ECC protocol uses the network element ID as the unique i...; Question 88: During the U2000 dual-system installation and commissioning,...; Question 89: When adjusting the optical power, the flatness is a very imp...; Question 90: When performing a 10-minute error-free test on a wavelength ...; Question 91: The frame structure of TU3 is a bit incomplete and needs to ...; Question 92: Which of the following data does not belong to the network l...; Question 93: Which of the following factors are considered that ASON supp...; Question 94: FXS and FXO are the names of ports used by analog telephone ...; Question 95: Which of the following local maintenance terminals can be us...; Question 96: When inserting LCK to the ODUk signal at the local end, what...; Question 97: OLA sites can also use ESC.; Question 98: Which of the following descriptions about the TMB1AST2 board...; Question 99: Which of the following are common networking methods in WDM ...; Question 100: SES: 5% or more errored blocks or at least one defect in one...; Question 101: Which of the following is correct about the processing of da...; Question 102: Which particles can the cross-connect board of the OSN 8800 ...; Question 103: Which of the following options are available for the subtype...; Question 104: Among the following options, which ones belong to MPLS-TP OA...; Question 105: Which of the following optical loss alarms will not cause se...; Question 106: Physical port: also known as MAC port. It is the external po...; Question 107: When using OSN8800 T32, if you need to set the ID numbers of...; Question 108: NG WDM adopts L0+L1+L2 three-layer structure. Among them, th...; Question 109: After the GE service enters the client side of the Ethernet ...; Question 110: OTUk_ENC indicates that the OTUk bit error exceeds the thres...; Question 111: When R_LOS, RLOF, R_OOF, MUT_LOS and other alarms appear on ...; Question 112: In the Colorless scenario, use the M40V/D40 board for adding...; Question 113: According to the G.709 protocol, how many ODU2e signals can ...; Question 114: Which of the following are the configuration modes of the ne...; Question 115: In the OTN electrical layer structure, which one is correct ...; Question 116: Which of the following situations can cause the board to rei...; Question 117: Reasons which is impossible for OTN equipment and network el...; Question 118: The characteristic test of NS4 single board includes? (Multi...; Question 119: Which of the following levels does the U2000 network managem...; Question 120: It is not recommended to configure the EPLAN service as a ri...; Question 121: How many 64K services can a 2M bandwidth support at most?...; Question 122: The technology of using local oscillator lasers of the same ...; Question 123: In the same ASON network, which of the following parameters ...; Question 124: Which of the following are the common test indicators for Et...; Question 125: Which of the following statements is correct about the alarm...; Question 126: While amplifying business signals, EDFA will also bring nois...; Question 127: Which of the following descriptions about the PWE3 network r...; Question 128: Which of the following are the traditional methods of multip...; Question 129: Both the SC2 and ST2 boards support the processing and trans...; Question 130: The DWDM system has extremely high requirements on the stabi...; Question 131: According to the description in the blank, select the correc...; Question 132: Milliwatts (m) and () (dBm) are two commonly used optical po...; Question 133: When testing the overload point and sensitivity of the IN po...; Question 134: NG WDM devices only support the global label space, and the ...; Question 135: SDH signals must be scrambled before being transmitted over ...; Question 136: There are two transmission modes in the WDM system, respecti...; Question 137: In a WDM network, if both the bidirectional OA and OSC repor...; Question 138: Which of the following is not an optical layer single board ...; Question 139: Which of the following services has the smallest frame perio...; Question 140: Ring multiplex section protection utilizes K1 and K2 bytes t...; Question 141: OSN 7500 supports a maximum of 2M service boards. Which of t...; Question 142: Regarding the system architecture of NG WDM products, which ...; Question 143: In the troubleshooting scenario, maintenance personnel need ...; Question 144: For an amplifier, the smaller its noise figure (NF) value, t...; Question 145: What are the causes of discrete services? (Multiple choice)...; Question 146: What are the options for the logical function modules involv...; Question 147: Compared with PDH, the main advantages of SDH are reflected ...; Question 148: Which of the following statements about extended ECC is wron...; Question 149: Which of the following description of discrete services are ...; Question 150: The scope of management of OMSn is the path from the input o...; Question 151: E&M signals define a connection type between a relay dev...; Question 152: The dispersion coefficient is the time delay difference caus...; Question 153: Which of the following options are included in the half-year...; Question 154: Which of the following descriptions about commissioning of n...; Question 155: In the extended SSM ring network dual BITS clock protection ...; Question 156: SDH can transmit any rate signal in the SDH system after bei...; Question 157: OCI stands for Open Connection Indication. The signal sent d...; Question 158: What parameter does the ECC protocol use as the unique ident...; Question 159: If the LED on the SCC board of the OSN 8800 T32 displays a v...; Question 160: The nominal rate of the OTU4 signal is 111 809 973.568 kbit/...; Question 161: Regarding the bit error test of the entire network during co...; Question 162: What are the following steps for low-speed services to be mu...; Question 163: Like STP equipment, NG WDM equipment can practice network el...; Question 164: Which of the following is not included in the basic architec...; Question 165: Regarding the following three types of ODUk SNCP protection,...; Question 166: In the SDH optical synchronous transmission system. Which of...; Question 167: When using the dual slot line group MSP ring, which of the f...; Question 168: The overall procedure for commissioning optical power of a s...; Question 169: ESC is mainly divided into which of the following from the p...; Question 170: Which of the following statements about pointer adjustment i...; Question 171: Which of the following descriptions about the PANEL panel on...; Question 172: If you only need to use LAG for port-level protection, confi...; Question 173: Which of the following descriptions about ROADM is correct? ...; Question 174: SF is a signal failure event and SD is a signal degradation ...; Question 175: The TOA board is an 8-way arbitrary rate service tributary p...; Question 176: When static aggregation adds or deletes member ports, the LA...; Question 177: Which of the following is the database used by U2000 on PC/W...; Question 178: If the SNCP services with the same source-sink or route are ...; Question 179: The ODUK serial connection monitoring overhead (TCM) of OTN ...; Question 180: When setting the monitoring time of network element performa...; Question 181: On the network management system, the network element perfor...; Question 182: For OSN series equipment, what alarm will be reported when o...; Question 183: MPLS-TP is a subset of MPLS, which removes the connectionles...; Question 184: Corresponds to the ISO seven-layer model. Ethernet correspon...; Question 185: Which of the following alarm/event dump modes does U2000 sup...; Question 186: Which of the following clock operating modes supports the IT...; Question 187: The loss of optical fiber mainly includes which of the follo...; Question 188: In order to meet the specified synchronization quality requi...; Question 189: When the value of the S1 byte is Ox02, it means ()....; Question 190: When configuring the basic properties of the Ethernet interf...; Question 191: Which of the following layer overheads belongs to the electr...; Question 192: The pointer is used for alignment. Indicates the starting po...; Question 193: In the WDM transmission system, the main factors affecting t...; Question 194: The following three optical layer protections have different...; Question 195: The alarm detection of the optical layer overhead is realize...; Question 196: The WDM system mainly adopts the DCM compensation method for...; Question 197: What are the functions completed by the SDH overhead bytes? ...; Question 198: For hybrid transmission systems, the principle of coherent c...; Question 199: Which of the following options are commonly used instruments...; Question 200: It is known that the difference threshold of the main channe...; Question 201: By using the out-of-band FEC technology, the optical signal-...; Question 202: Which of the following are the main application scenarios fo...; Question 203: Which of the following is the maximum number of OSN3500 subr...; Question 204: The VLAN domain can isolate the unicast packets of different...; Question 205: When forwarding packets based on MPLS labels, what actions m...; Question 206: OptiX NG SDH equipment supports -48V and -60V two kinds of p...; Question 207: When the receivable TTI and the actual receipt TTI of the PM...; Question 208: OChr means use of electrical monitoring techniques...; Question 209: The frame alignment signal is used for signal frame alignmen...; Question 210: The ODUk SNCP protection cannot be switched automatically. W...; Question 211: The collection and storage of on-site data includes regular ...; Question 212: Which of the following options matches the meaning expressed...; Question 213: The lower the noise figure creep value of the amplifier, the...; Question 214: Which of the following is the frame structure of STM-16?...; Question 215: Which of the following description about the path method to ...; Question 216: () multiplex ODU2e to one ODU3, () multiplex ODU2 to one ODU...; Question 217: Please put the correct answer into the corresponding number ...; Question 218: The core device of ROADM is the wavelength selective switch ...; Question 219: ODUk SNCP protection subtypes include (), () and ()....; Question 220: During the commissioning process, it is necessary to ensure ...; Question 221: Which of the following bytes in the regenerator section over...; Question 222: Which of the following residual dispersion values are within...; Question 223: Which of the following description about Flexible ROADM is w...; Question 224: The U2000 network management system supports multiple extern...; Question 225: CC is used to detect the unidirectional connectivity between...; Question 226: Which of the following network element users belong to the d...; Question 227: Which of the following descriptions about equipment heat dis...; Question 228: MPLS is not a service or application. It is actually a tunne...; Question 229: In a typical chain-type NG WDM network (such as A→B→C, A, ...; Question 230: Which of the following descriptions about the signal flow at...; Question 231: Which of the following protections in microwave equipment do...; Question 232: 64K SNCP protection is used to protect 64K services. Which o...; Question 233: Which of the following options are available for the data du...; Question 234: The instrument test method is generally used to eliminate ex...; Question 235: The number of network elements (including REG) in the two-fi...; Question 236: LAG can only be configured in non-load sharing mode...; Question 237: Optical fiber and LEAP optical fiber systems, 1006 and 106 m...; Question 238: For a typical fixed WDM system, the channel spacing is N*5Og...; Question 239: The frame frequency () of different levels of STM level, the...; Question 240: The main difference between an open DWDM system and an integ...; Question 241: Which of the following will cause a BEFFEC_EXC alarm to be r...; Question 242: () and () are two important performance indicators of the SD...; Question 243: The TNG1M404DM single board is a wavelength conversion board...; Question 244: During equipment installation, the Optix OSN 9800 U32 standa...; Question 245: Which of the following bytes is the negative adjustment posi...; Question 246: Which of the following belongs to the optical layer part of ...; Question 247: The LER in the MPLS network is a kind of LSR located at the ...; Question 248: If the network element ID is modified, the communication bet...; Question 249: Which of the following descriptions about the EX40 board is ...; Question 250: Which of the following ROADW boards contains the core compon...; Question 251: Which of the following is the main advantage of SDH? (Multip...; Question 252: Which of the following descriptions about optical line prote...; Question 253: A VC-4 can transmit () VC-12, that is () 2.048 Mbit/s signal...; Question 254: MAC forwarding table: contains which of the following items?...; Question 255: The so-called full duplex means that data can be sent and re...; Question 256: Which of the following description about QPSK modulation tec...; Question 257: When deleting a discrete service, deactivate it first, and c...; Question 258: When the OTUK_DEG alarm is detected at the local end, which ...; Question 259: Which of the following measures can be taken when the low-le...; Question 260: The DH function can be used to count the delay and jitter of...; Question 261: The manual reset at the equipment site is hard reset....; Question 262: Which of the following statements about MST functional modul...; Question 263: When the 2M PDH signal is mapped into VC12, the mapping meth...; Question 264: In the troubleshooting scenario, which of the following desc...; Question 265: The special fiber input power (high power) is higher than th...; Question 266: The OOS overhead is the optical layer overhead. Which of the...; Question 267: Which of the following are the working modes of the SDH netw...; Question 268: When the OSN 8800 T32 cabinet emits an alarm beep, which of ...; Question 269: Which of the following overhead bytes in VC4 high-order path...; Question 270: Which of the following description about using the synchrono...; Question 271: The essence of QPSK modulation is to select 4 possible value...; Question 272: In the path search process of the U2000 network management, ...; Question 273: The clock ID can solve the possible timing loop problem. In ...; Question 274: Which of the following functions does EX40 increase compared...; Question 275: In the G.652 and LEAF optical fiber system, isolation bands ...; Question 276: Which of the following are necessary prerequisites for creat...; Question 277: Which of the following descriptions about the function of th...; Question 278: In a 40-wave system, using a DAP (TN150AC106) amplifier, the...; Question 279: STM-N signals are transmitted on the line through scrambling...; Question 280: The optical monitoring channel is set up for the monitoring ...; Question 281: Which of the following is not included in the general encaps...; Question 282: Which of the following reasons will not cause the network ma...; Question 283: The optical and electronic racks of the OSN 9800 equipment c...; Question 284: When using the path method to create OCh, which of the follo...; Question 285: The smaller the grounding resistance value of the equipment,...; Question 286: Which of the following alarms will be reported by the NMS wh...; Question 287: In the WDM system, troubleshooting generally follows the pri...; Question 288: SDH&PDH tester is mainly used to test OTU's jitter, bit ...; Question 289: The ODUk serial monitoring overhead supports multiple mainte...; Question 290: When the GE service is encapsulated into the OTN frame struc...; Question 291: Regarding the reporting of the OTUk_BDI alarm, which of the ...; Question 292: Which of the following methods to avoid discrete paths is co...; Question 293: ITU-T stipulates, what is the switching gain requirement of ...; Question 294: Which of the following descriptions about the delay of store...; Question 295: The NHLFE next-hop label forwarding entry contains the next-...; Question 296: Which of the following descriptions about the business packa...; Question 297: () is the core equipment of the access network, and is the a...; Question 298: In the early stage of the project, the commissioning of the ...; Question 299: In the WDM network design, as long as enough EDFAs are casca...; Question 300: The resources between single-board optical cross-connect con...; Question 301: The receiving sensitivity of a certain optical monitoring bo...; Question 302: Which of the following is a functional unit. It provides the...; Question 303: Which of the following options conform to the principles of ...; Question 304: Which of the following descriptions about the UXCL board and...; Question 305: OSN 3500 branch service has strong up and down capabilities:...; Question 306: Which of the following types of E-Line services are supporte...; Question 307: The OLT is connected to the switch through (), using the V5....; Question 308: Which of the following performances do not need to be evalua...; Question 309: WDM system fault location follows the principle of first loc...; Question 310: The optical monitoring board cannot receive the optical moni...; Question 311: Which of the following is the overhead for bit error detecti...; Question 312: The number of E1 frames that can be encapsulated in a CESoPS...; Question 313: In an 80-wave system, using the TMB1DAP (TM150AC106) amplifi...; Question 314: If a ROADM site adopts WSS+RMU configuration, which of the f...; Question 315: When the BIP-8 in the OTUk section monitoring overhead SM de...; Question 316: When the optical cable is laid by traction, the main tractio...; Question 317: OTUk_DEG indicates that the OTUk signal is degraded. Which o...; Question 318: Inter-board crossover mainly includes two application scenar...; Question 319: AC is the WDM OTM site, and B is the relay site. When the op...; Question 320: Which of the following commissioning ranges should the optic...; Question 321: In daily maintenance scenarios, reset is one of the common o...; Question 322: After enabling TCM monitoring, when the upstream station det...; Question 323: During the maintenance of OSN equipment, it is often seen th...; Question 324: In which ITU-T recommendation is the OTN frame structure def...; Question 325: Which of the following descriptions of the ASDN software str...; Question 326: The main optical path monitoring is based on the OMS segment...; Question 327: Which of the following descriptions about the MPLS architect...; Question 328: Which of the following descriptions about commissioning of s...; Question 329: In the Windows operating system, the log files of the U2000 ...; Question 330: How many VC12 virtual TE links are supported by the same phy...; Question 331: FOADM includes parallel FOADM and serial FOADM, both of whic...; Question 332: Which options are wrong in the following description about t...; Question 333: The optical fiber is composed of which of the following part...; Question 334: The () function of the 0A module of the EMR8 single board ma...; Question 335: The NG WDM electrical layer service board supports compatibi...; Question 336: Regarding the description of OSS, which is wrong?...; Question 337: What items does the network reference model of PWE3 include?...; Question 338: In the Windows operating system, the log files of the U2000 ...; Question 339: In the 80-wave 6.653 system, if the system capacity requirem...; Question 340: Which of the following descriptions about the DM12 board is ...; Question 341: The value of the MFAS byte increases with the sequence numbe...; Question 342: When the main control board is single-configured, which step...; Question 343: Which of the following description of Tunnel APS protectioni...; Question 344: The fully standardized optical transport unit OTUK is an OTU...; Question 345: Which of the following statements about PW APS 1:1 protectio...; Question 346: MPLS APS is a network protection mechanism, which implements...; Question 347: The trigger condition for automatic protection switching of ...; Question 348: For the SSM protocol, which of the following statements are ...; Question 349: Which of the following are the basic functions of U2000? (Mu...; Question 350: Which of the following descriptions about PM_BIP8-related al...; Question 351: Which one of the following networking forms that support add...; Question 352: The inter-board crossover refers to the cross-connection con...; Question 353: Which of the following is not an advantage of using QinQ tec...; Question 354: Which of the following operations will directly or indirectl...; Question 355: Which of the following descriptions about the TNG2M402D boar...; Question 356: Some SNCP protection switching conditions are default. For e...; Question 357: Which of the following belongs to the client-side logical po...; Question 358: In the WDM system, if the TTI to be sent by the SM layer is ...; Question 359: The two PIU/APIU boards of the OSN 1800 equipment use hot ba...; Question 360: When the cross-connect board is configured with 1+1 hot back...; Question 361: MC_ LAG can only be configured in non-load sharing mode....; Question 362: PWE3 is a processing mechanism that simulates the key attrib...; Question 363: The optical amplification unit can make up for the line loss...; Question 364: Which of the following parts does the general encapsulation ...; Question 365: The super 100G OTN signal contains various electrical layer ...; Question 366: Which of the following factors determine that the optical si...; Question 367: The last 256 columns in the OTN frame structure are the FEC ...; Question 368: At an OLA site, the maximum output optical power of the OAU ...; Question 369: Which of the following is the difference between AU pointer ...; Question 370: Which of the following fault handling methods that can be us...; Question 371: Which of the following descriptions about the TNF6TTA board ...; Question 372: What is the connection port between BTS and transmission in ...; Question 373: It mainly completes the point-to-point voice communication b...; Question 374: which of the following description about LAG (Link Aggregati...; Question 375: In the electrical layer overhead processing-sink function, w...; Question 376: Which of the following descriptions about oTN optical layer ...; Question 377: Regarding the warning AU-AIS, which one of the following sta...; Question 378: The video system and transmission connection port in the bas...; Question 379: Which of the following statements are correct? (Multiple cho...; Question 380: Which of the following is the common point between the two-f...; Question 381: If the cumulative amount of dispersion exceeds the system's ...; Question 382: In the electrical layer application scenario of end-to-end t...; Question 383: Which of the following descriptions about optical combining ...; Question 384: The TAG attribute cannot be set for the internal port VCTRUN...; Question 385: Once a nonlinear effect occurs, its impact on service signal...; Question 386: OptiXtrans DC908 can predict faults based on trends and vola...; Question 387: Which of the following descriptions about commissioning of f...; Question 388: Both the Ping function and the Traceroute function detect th...; Question 389: In the OSN 1800, the LOA single board can implement the Laye...; Question 390: Which of the following description of replacing the main con...; Question 391: Which of the following descriptions about the technical char...; Question 392: In actual WDM systems, systems with a rate of 10G and below ...; Question 393: APAUSE frames using reserved multicast addresses are not for...; Question 394: Which of the following descriptions about circuit boards is ...; Question 395: When configuring 1+1 optical line protection, you can choose...; Question 396: Which of the following boards can be inserted into the OSN 9...; Question 397: For the hybrid transmission system with dispersion compensat...; Question 398: Which of the following is a functional unit that provides a ...; Question 399: By resetting a single board, restarting a single station, re...; Question 400: Mandatory switching. Fiber switching manual switching and mo...; Question 401: Which of the following statements about MSP rings are true? ...; Question 402: Which of the following descriptions about the OTU board is c...; Question 403: NG WDM system fault analysis methods include signal flow ana...; Question 404: Which of the following methods are included in the networkin...; Question 405: OTM-nr.m consists of multiplexing of up to n optical channel...; Question 406: For OSN6800 equipment, which of the following slots does not...; Question 407: MPLS label consists of which of the following parts? (Multip...; Question 408: The only functional difference between OPSA and OPSB is that...; Question 409: Common fault location methods include which of the following...; Question 410: The user-oriented interface and transmission network-oriente...; Question 411: The strength of the nonlinear effect of optical fiber is rel...; Question 412: Among OTN network interfaces, the internal network interface...; Question 413: Which of the following difference between a wide area networ...; Question 414: The SL64 board is available for the OSN2500....; Question 415: For a point-to-point network, set the TIM mode on the networ...; Question 416: Which of the following descriptions about business boundary ...; Question 417: The standard Ethernet frame length should not be less than 6...; Question 418: Which of the following is the effect of changing the network...; Question 419: Which of the following statements are true about the EFS4 ci...; Question 420: Among the working modes provided by the line fiber quality m...; Question 421: When creating a single-site optical crossover, an error mess...; Question 422: The transmission plane mainly completes functions such as op...; Question 423: Which of the following overheads is not ODUk overhead?...; Question 424: OTU_LOM is an alarm generated due to the out-of-multiframe (...; Question 425: Bit errors may occur if the received optical power is close ...; Question 426: The use of QPSK modulation can reduce OSNR requirements and ...; Question 427: In the troubleshooting scenario, in order to detect and loca...; Question 428: In the DWDM system, which of the following options are the m...; Question 429: Which of the following is not a function of RSVP-TE?...; Question 430: Which of the following descriptions about the function of MP...; Question 431: The network must have protection capabilities. Which one is ...; Question 432: The network element defaults to automatic expansion of ECC c...; Question 433: What principle of light is used for the propagation of light...; Question 434: The OptiX NG WDM device only supports the global label contr...; Question 435: The NG WDM two-dimensional ROADM site can use the WSMD9 sing...; Question 436: There is a slot mapping relationship between the OSN3500 pro...; Question 437: Which of the following reports will be reported when the fib...; Question 438: Which of the following description about 1+1 optical line pr...; Question 439: Which of the following statements is correct?...; Question 440: When the PW bears Ethernet services, two layers of labels ar...; Question 441: Which of the following is the networking method of parallel ...; Question 442: Incoherent systems need to physically compensate DCK to solv...; Question 443: Gain is an important index of fiber amplifier, and its unit ...; Question 444: Which of the following statements about clock sources is wro...; Question 445: When the input optical power of the amplifier of the OAU at ...; Question 446: For nonlinear effect FWM, which of the following processing ...; Question 447: The last 256 columns of the OTN frame structure are FEC area...; Question 448: Which of the following descriptions about the TMB1AST2 board...; Question 449: When light passes through a passive optical device, it will ...; Question 450: Which of the following are not part of the ASON control prot...; Question 451: NEA and NEB are adjacent NEs. Which of the following perform...; Question 452: Compared with the SDH system, the WDM system improves the ut...; Question 453: The SDH network will not change the structure and rate of th...; Question 454: MSTP adds () and () interfaces and corresponding signal proc...

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