[Jan 22, 2025] Huawei H31-311_V2.5 Exam Dumps Files, Q1/307: Which of the following options are considered to be deficiencies of OTN? (Multiple choice)

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Question 1/307

Which of the following options are considered to be deficiencies of OTN? (Multiple choice)

A. Insufficient resource utilization

B. Latency is not low enough

C. Insufficient flexibility, the minimum pipe is ODUO 1.25G

D. OAM function is not strong

E. Bandwidth adjustment is not flexible

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Other Question (307q): Q1. Which of the following options are considered to be deficiencies of OTN? (Multiple choice...; Q2. For the 192.3THZ wavelength OTU board, which port of M40 is its output connected to?...; Q3. When the SNCP ring consisting of four Optis OSN 2500 devices has a rate of 25 Gbt/s, the n...; Q4. The flexible pipe provided by MS-OTN equipment means that the service can be carried throu...; Q5. A bidirectional ring means that the routes for sending and receiving services are consist...; Q6. E1 has three modes: framing, multi-framing and unframing. The main difference is the time ...; Q7. FOADM includes parallel FOADM and serial FOADM, both of which support any wavelength up to...; Q8. SES: There are 5% or more of the False blocks or at least one defect (OCI/AIS/LCK/IAE/LTC/...; Q9. If the virtual cascade group at one end of the equipment has LCAS enabled, but the other ...; Q10. The management scope of O MSn is the path from the input optical port on the multiplexer ...; Q11. When LCK is inserted into the local ODUk signal, which processing will the downstream sta...; Q12. Which of the following options are correct about the problem that the emergence of WDM ca...; Q13. When 2M PDH signal is mapped into VC12, the mapping method used is ()....; Q14. Single-fiber bidirectional WDM systems use only one optical fiber to transmit optical sign...; Q15. Which of the following statements about the EFS4 board are correct? (Multiple choice)....; Q16. The preamble of the Ethernet frame structure is 7 bytes long, and the bit pattern of each...; Q17. Which of the following statements about overhead bytes is incorrect?...; Q18. When configuring 1+1 optical line protection, you can select RI1TO1 or RI2/T02 as the wor...; Q19. The clock unit can only access the external clock source as the timing signal source of th...; Q20. The rate of STM-0 is 51.84Mbit/s; (STM-0 is used for digital microwave)....; Q21. The levels of forced switching, fiber break switching, manual switching, and practice swi...; Q22. Compared with the dense wavelength division multiplexing (DWDM) system, the coarse wavele...; Q23. What does the optical layer overhead include? (Multiple choice)...; Q24. Which of the following bridges are used to forward data based on the MAC address and VLAN...; Q25. Which of the following is not an advantage of EDFA?...; Q26. The multi-frame loaded 2M signal is the information of which time period?...; Q27. Which of the following are configuration modes for new NEs? (Multiple choice)...; Q28. Which of the following alarm/event storage modes does U2000 support? (Multiple choice)....; Q29. If SNCP services with the same source, sink or route are grouped, the SNCP switching spee...; Q30. Which of the following layers of overhead belong to the electrical layer overhead of OTN? ...; Q31. The number of bit error blocks on each VC4 channel is detected by B3 on the receiving side...; Q32. Which of the following parts does optical fiber consist of? (Multiple choice)...; Q33. Compared with traditional SDH and SONET equipment, OTN has up to 6 levels of TCM monitori...; Q34. The first to third layers of the OSI reference model are called the bottom layer, also kn...; Q35. Half-duplex mode must have a conflict detection and avoidance mechanism to prevent multip...; Q36. Which of the following options are the main characteristics of the transmission network? ...; Q37. AAC address consists of 46 bits and is globally unique. Which of the following is the mean...; Q38. PRBS can be used to test that the SDH service is healthy and that the protection reversal ...; Q39. Which subtype of tributary SNCP protection requires no electrical relay station in the su...; Q40. Which of the following is the default WTR time for MSP switching?...; Q41. Which of the following is a VLAN classification method? (Multiple choice)...; Q42. When a device that supports auto-negotiation is connected to a device that does not suppo...; Q43. Which of the following statements about U2000 licenses is wrong?...; Q44. The1310nm and 1550nm transmission windows are low loss windows. In DWDM systems, only the ...; Q45. Which of the following planes does the ASON network have more than the traditional network...; Q46. Which of the following is the impact of changing the NE ID of OSN3500 on NMS?...; Q47. In Recommendation ITU-T G.692, the allowable channel frequencies are based on the referenc...; Q48. Are the following statements regarding the definition of SDH correct?...; Q49. Which of the following statements is wrong?; Q50. Which of the following statements regarding multiplexing partial remote error indication (...; Q51. In the network management system, the network element performance monitoring time is set ...; Q52. SP3D board supports 63 E1 services; Q53. Which of the following layers of overhead belong to the electrical layer overhead of OTN?...; Q54. SDH signals must be scrambled before they can be transmitted over optical fibers. Which of...; Q55. TMD E1 PWE3 encapsulation is used to solve the transmission of E1 services. What is the fr...; Q56. Compared with traditional SDH and SONET equipment, which of the following advantages does...; Q57. Which of the following descriptions of the advantages of OTN is wrong?...; Q58. The two-fiber bidirectional multiplexing segment shared protection ring requires that the...; Q59. A one-way loop means that the routes of service sending and receiving are inconsistent un...; Q60. PRBS can be used to test that the SDH service is healthy and that the protection reversal ...; Q61. Among the following modulation technologies, which one performs best in terms of waveleng...; Q62. For 100G (112Gbit/s) signal, the actual data baud rate is only 28G baud....; Q63. Which factors determine the optical signal-to-noise ratio (OSNR) of the receiving end to a...; Q64. In OTN, which of the following maintenance signals is transmitted from the downstream sit...; Q65. Which of the following statements about overhead bytes is wrong?...; Q66. In the Colored & Directed scenario of 4D ROADM, how many sets of M40V+D40 are needed ...; Q67. NCE's software deployment method adopts B/S (Browser/Server) architecture....; Q68. output networks require higher costs than belt networks, but provide a more reliable manag...; Q69. Among the following recommendations, which of the following protocols are related to WDM?...; Q70. Which of the following is the common point between the two-fiber bidirectional multiplex ...; Q71. The essence of OPSK modulation is to select four possible values on the phase of the opti...; Q72. For a (local) HA solution where the active and standby servers are deployed at the same lo...; Q73. Sending test frames will affect normal business....; Q74. APS lossless protection switching provides dual-transmission and selective reception funct...; Q75. In which of the following optical fibers will the four-wave mixing phenomenon be most ser...; Q76. When the low-level resources of the device are insufficient, which of the following measur...; Q77. Which of the following is protected by the channel protection ring?...; Q78. The number of bytes in the segment overhead in the STM-1, STM-4, STM-16, and STM-64 frame ...; Q79. Mapping is the process of adapting branch signals into () at the boundary of the SDH netw...; Q80. Which of the following can be used as the central wavelength of the pump source in EDFA? (...; Q81. Frame-Mapped GFP (GFPF> is a processing mode that targets data encoding blocks such as ...; Q82. Which of the following is not a nonlinear effect?...; Q83. Chromatic dispersion includes material dispersion and waveguide dispersion. Generally, on...; Q84. By default, if the B2 bit error exceeds which of the following thresholds, a B2-EXC alarm...; Q85. Which of the following statements about the MST functional module is correct? (Multiple ch...; Q86. Which of the following bytes can be used for wired phones between two REG devices?...; Q87. The SDH optical interface only scrambles the electrical signals....; Q88. For 100G (112Gbit/s) signals, the actual data baud rate is only 28G amplitude....; Q89. The 1510nm optical monitoring channel can be effectively amplified after passing through E...; Q90. Which of the following is the steps to multiplex a low-speed service into a high-speed SDH...; Q91. How many frames is the minimum interval between two adjacent pointer adjustment events?...; Q92. Which of the following clock operating modes supports the ITU-T G.781 standard? (Multiple ...; Q93. MPLS is a label forwarding technology. Which of the following was its original design purp...; Q94. 1:N linear multiplex section protection: when the working channel is unavailable, the ser...; Q95. The error correction capability of FEC is measured by coding gain. Which of the following...; Q96. The user adjusts the service bandwidth in real time. The NCE control unit sends the new b...; Q97. The TAG attribute cannot be set for the internal port VCTRUNK of the board on the NMS....; Q98. The rate of STM-1 is () bit/s.; Q99. Which of the following site types support business up and down? (Multiple choice)...; Q100. Users can easily access NCE through a browser without having to install additional tradit...; Q101. Which of the following options are correct? (Multiple choice)...; Q102. When using a script to back up U2000 data, the backup speed is very fast because the back...; Q103. In terms of protection capability, which of the following topologies has the strongest pr...; Q104. 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Which of the following is the difference between an AU pointer and a TU pointer? (Multiple...; Q125. Compared with WDM, which of the following options are the advantages of OTN? (Multiple ch...; Q126. Dynamic PW refers to a PW established through a signaling protocol. Currently, the main P...; Q127. Some SNCP protection switching conditions are default, such as AUAIS and TUAS. Other cond...; Q128. TNG1M404DM board can realize the multiplexing of 4 100Gbit/s services to 2 200G wavelength...; Q129. PWE3 is a processing mechanism that simulates the key attributes of a certain service and...; Q130. In Huawei's T-SDN network architecture, () realizes centralized control of single-domain ...; Q131. When there is a Critical Error In Seconds (SES) in the PM portion of the ODUk layer, which...; Q132. In which ITU-T recommendation is the OTN frame structure defined?...; Q133. RAMAN amplifier utilizes which of the nonlinear effects?...; Q134. What are the main losses of optical fiber? (Multiple choice)...; Q135. When the optical cable is laid by traction, the main traction force should be applied to ...; Q136. By default, B2-EXC alerts are reported when the number of B2 bit errors exceeds the () thr...; Q137. Linear MSP (LMSP) has two modes: 1+1 and 1:1. Additional services can only be configured ...; Q138. Optical fiber loss includes bending loss, absorption loss and scattering loss....; Q139. The pointer is used for alignment, indicating the starting position of the VC in the corr...; Q140. If the virtual cascade group at one end of the device has LCAS enabled, but the other end...; Q141. QinQ follows the technical standard IEEE802.1ad, and its emergence is mainly to solve the...; Q142. SDH can transmit signals of any rate in the SDH system after packaging....; Q143. The single-fiber bidirectional wavelength division multiplexing system uses only one opti...; Q144. Which of the following board configurations for ROADM nodes are correct? (Multiple choice)...; Q145. On the NMS system, the network element performance monitoring time is set to () minutes an...; Q146. The encapsulation formats of TMD E1 service PWE3 mainly include SAToP mode and CESoPSN mo...; Q147. The clock unit can only access the external clock source as the timing signal source of t...; Q148. During service configuration, there are two time slot modes. Huawei uses interleaved time ...; Q149. Which of the following are the components of the WDM system summer with N glass lengths? (...; Q150. OL board, OLA board and OPC board can all amplify optical signals....; Q151. The Raman amplifier uses which of the following effects?...; Q152. The number of bit False blocks on each VC4 channel is detected by B3 on the receiving side...; Q153. In the structure of SDH signals, there are large overhead sections for operations, admini...; Q154. Arrayed Guided Grating (AWG) multiplexer/demultiplexer has the following advantages: short...; Q155. How many management unit pointers are there in the STM-64 frame structure?...; Q156. What is the line code type of the commonly used SDH optical interface?...; Q157. Establish Ethernet leased line service between HI (HQ) and H2 (branch) of enterprise H, an...; Q158. QinQ technology can be used when multiple users need to share the same VCTRUNK and use the...; Q159. Which of the following options are the advantages of arrayed waveguide gratings? (Multiple...; Q160. For SDH equipment, in the STM-N frame structure, the rate corresponding to each bit is ()...; Q161. Which of the following bytes can be used for ordenwire calls between two REG devices?...; Q162. According to the different transmission media, the transmission system can be divided int...; Q163. LCK insertion takes precedence over AIS insertion. That is, if the user configures LCK in...; Q164. The OTN electrical layer SM, PM, and TCMi overheads all contain a 1-byte BIP8 field, and ...; Q165. The main causes of bit errors are () and () of the transmission system....; Q166. The nominal rate of the OTU4 signal is 111809973.568 kbits, and we can generally consider...; Q167. Which of the following is the OPUk payload structure identification overhead?...; Q168. The segment overhead of STM-4 is 9*9*4 bytes/frame....; Q169. Are the following statements about the definition of SDH correct?...; Q170. Which of the following alarms or events are conditions for SNCP switching? (Multiple choi...; Q171. Which of the following service levels cannot be selected during service configuration?...; Q172. A PAUSE frames use reserved multicast addresses and are not forwarded by bridges or switch...; Q173. For OTN interfaces without optical layer overhead, in order to achieve monitoring purpose...; Q174. Which of the following networking types is optical line protection mainly used in?...; Q175. QinQ technology can be explained as 802.1Q in 802.1Q. In other words, it is to add anothe...; Q176. Ethernet_II and IEEE802.3 frame types are distinguished by the Type/Length field value; m...; Q177. Consider an optical fiber as a "multi-lane" public road. The traditional TDM system only ...; Q178. Which of the following are not passive optical devices? (Multiple choice)...; Q179. Which of the following options is emitted from an ordinary light source, which has all po...; Q180. The cascading methods for mapping Ethernet services to SDH include adjacent cascading and...; Q181. In Recommendation ITU-TG692, the allowed signal frequencies are based on the reference fr...; Q182. SES: There are 5% or more error blocks or at least one defect (OCI/AIS/LCKYAE/LTC/TIM/PLM...; Q183. The video system and transmission connection port in the base station is ()....; Q184. The unit of physical layer data in the OSI reference model is (), and the unit of data lin...; Q185. Which of the following is the meaning of "L" in the optical module parameter "L-642"?...; Q186. Which of the following is not an advantage of using QinQ technology?...; Q187. The wavelength division system mainly uses DCM compensation to compensate for chromatic d...; Q188. The standard Ethernet frame length should not be less than 64 bytes Which of the following...; Q189. Which of the following communication protocols are used for DCN management of Huawei devic...; Q190. Bait-doped fiber amplifiers (EDFAs) are a key component of the new generation of optical c...; Q191. In the electric power dispatching system, dispatching data is transmitted in the transmis...; Q192. EPL services use ports and bandwidth exclusively, and different users may need to share re...; Q193. ROADM sites can support up to 9 dimensions using the TSMD9 board. If the number exceeds 9...; Q194. SDH signals must be scrambled before transmission over optical fiber. Which of the followi...; Q195. Which of the following descriptions about the FIU board is correct?...; Q196. IEEE802.3 standard is developed for which of the following technologies?...; Q197. SOTU stands for Single Optical Transport Unit Interface, and MOTU stands for Multiple Opti...; Q198. For alignment; Indicates the starting position of VC-n in the corresponding AU or TU frame...; Q199. The difference between ASON network and ordinary network is that it introduces the concept...; Q200. Which logical function block generates the R-LOS alarm?...; Q201. The technology of using a local oscillator laser of the same frequency to coherently rece...; Q202. In the SDH optical synchronous transmission system, which of the following bytes is used ...; Q203. Arrayed waveguide grating optical wavelength division multiplexing device has the advanta...; Q204. Which of the following options does not belong to the application scenarios of survival an...; Q205. The RI1/TO1 optical port of the OLP board can be used as both a working channel and a pro...; Q206. Coherent receiver technology uses a local oscillator laser with the same frequency as the...; Q207. Coherent receiver technology uses a local oscillator laser with the same frequency as the ...; Q208. Which of the following network element forms can complete the cross-multiplexing and serv...; Q209. The segment overhead of STM-16 is 9*8*16 bytes/frame....; Q210. The number of bit error blocks on each VC4 channel is detected by B3 at the receiving end...; Q211. Which of the following is the adjustment unit of AU-PTR?...; Q212. Which of the following statements about basic LCAS functions are correct? (Multiple choice...; Q213. The 1510nm optical supervisory channel can be effectively amplified through EDFA....; Q214. Which of the following boards are optical wavelength conversion boards? (Multiple choice)...; Q215. Which types of destination MAC addresses in Ethernet frames can be classified into? (Mult...; Q216. The standard Ethernet frame length should not be less than 64 bytes. 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The 1+1 protection mechanism on the customer side implemented by the SCS board or the OLP...; Q228. The SDH network does not change the structure and rate of the client-side signal....; Q229. Which of the following is the protection method of TPS?...; Q230. The device IP addresses of the gateway network element and non-gateway network element mu...; Q231. QinQ technology can be used when multiple users need to share the same VCTRUK and use the ...; Q232. Which of the following wavelengths can be used as pump light sources? (Multiple choice)...; Q233. Manual configuration will clear the data on the NE side...; Q234. Which of the following bytes can be used for wired calls between two REG devices?...; Q235. Which of the following is not an EVPLAN function?...; Q236. What is the structure of STM-16?; Q237. Single-fiber bidirectional WDM system uses only one optical fiber to transmit optical sig...; Q238. Which of the following options are low-loss areas of single-mode optical fiber? 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MSF does not directly protect services, and MSP ...; Q280. LDG supports electrical layer scheduling at the ODU1 level....; Q281. When the switch receives a data frame, it searches the MAC forwarding table based on the ...; Q282. PDM uses a polarization beam splitter to split the laser into two perpendicular directions...; Q283. When multiple users need to share the same VCTRUNK and use the same VLAN ID, QinQ technol...; Q284. The transmission rate of STM-4 is constantly equal to 4 times the signal transmission rate...; Q285. The switching mode of 1:N linear multiplexing segments is which of the following?...; Q286. Nonlinear effects are closely related to optical power. To prevent nonlinear effects, the...; Q287. Which of the following options does WDM have for light source requirements? (Multiple choi...; Q288. When using the LCAS function, which of the following overhead bytes is used to transmit co...; Q289. The bits of the S1 byte represent the clock quality level. Which of the following indicate...; Q290. PAUSE frames use a reserved multicast address and are not forwarded by bridges or switches...; Q291. The parameter () is usually used to measure the impact of bit errors on transmission qual...; Q292. B2 byte is similar to B1 byte. When a bit error is detected, it will be transmitted back t...; Q293. What is the first condition that a network needs to have in order to have protection capa...; Q294. The frame structure of TU3 is a bit incomplete, and the gap needs to be filled. This can e...; Q295. VLAN division can prevent broadcast storms, improve network efficiency, and make the netw...; Q296. Both QinQ and MPLS can provide users with L2 VPN services, but QinQ is cheaper and simple...; Q297. Which of the following are the benefits of polarization multiplexing technology? (Multiple...; Q298. Which of the following bridges are used to forward data based on the MAC address and VLAN ...; Q299. When the line board tuning granularity is ODUflex, which of the following protections can...; Q300. OSN1500/2500/3500/7500 supports DC and AC power inputs....; Q301. The DCC byte is mainly used to transmit OAM information and is the physical channel for t...; Q302. STM-64 has () AU pointer.; Q303. In a wavelength division multiplexing system, when the wave number exceeds how many wavele...; Q304. HONET integrated service access network belongs to () access method....; Q305. Frame-Mapped GFP (GFP-F) is a processing mode for data encoding blocks (such as Fibre Chan...; Q306. FAS is the frame alignment overhead with a length of 6 bytes. The 1st to 3rd bytes are 3 O...; Q307. During service configuration, which of the following service levels cannot be selected?...

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