The line impedance of the 2Mbps electrical interface is specified as
- A . 75Ω (unbalanced)
- B . 120Ω (balanced)
- C . 75Ω (unbalanced) or 120Ω (balanced)
- D . None of the above
Which of the following statements about ASON technology is incorrect?
- A . By introducing ASON technology, it can resist multiple network failures and ensure that all roads are connected
- B . The existing network can be evolved and ASON functions can be realized through software loading
- C . ASON can effectively improve resource utilization through dynamic bandwidth allocation
- D . ASON improves network reliability by reducing the efficiency of network resource utilization
What is the biggest difference between different types of amplifiers?
- A . Different gains
- B . Different noise figures
- C . Occupied different slots
Protection range of ODUkSNCP Linear protection realized by dual transmission and selective reception
- A . Line Fiber
- B . OCH optical fiber, line optical fiber
- C . Circuit board, OCH optical fiber, line optical fiber
- D . Branch board, circuit board, OCH fiber, line fiber
What is the Wavenumber of commonly used continuous wavelength division multiplexing systems?
- A . 4
- B . 8
- C . 16
- D . 32
In the WDM model, the payload part of the OMS layer of the functional unit that completes the OEO conversion is processed on the MUX/DEMUX/OADM board OTU optical wavelength conversion board
- A . OLA
- B . MUX
- C . DEMUX
- D . OTU
What is the cost of the second-generation soft judgment used by Huawei 100G?
- A . 10%
- B . 15%
- C . 20%
- D . 25%
Which of the following protection methods has the lowest cost?
- A . Optical line OLP protection
- B . 1+1 protection within OTU board
- C . ODUKSNCP
- D . Device 1+1 protection
What is the client layer of OCH in the OTN layer?
- A . OTS
- B . OMS
- C . OTU
- D . ODU
Which of the following is the smallest device currently provided by Huawei transmission products?
- A . OptiXstarA810
- B . OptiXtransE6604
- C . OptiXtransE6608
- D . OptiXtransE9605
Among the following ONUs, the model that does not support the POE function is:
- A . P613E
- B . P612E
- C . P602E
- D . EG8084P
Which of the following products does not have POE features at all?
- A . P613E
- B . P602E
- C . P813E
- D . EA5821
To achieve a larger range of WLAN coverage in the office area of the park, seamless roaming and uninterrupted business are required. Which of the following methods is recommended to provide wireless access?
- A . Thin AP
- B . Fat AP
- C . ONT has its own WIFI to provide wireless
- D . None of the above statements are correct
What is the maximum switching capacity of the new brand OLTEA5800-X7 main control board for enterprise exclusive access?
- A . 7.2Tbit/s
- B . 3.6Tbit/s
- C . 1920Gbit/s
- D . 480Gbit/s
Which of the following equipment forms does not belong to access products?
- A . OLT
- B . ONU
- C . ODN
- D . OTN
OLTEA5801 supports a maximum of () service GPON ports
- A . 4
- B . 8
- C . 16
- D . 32
In all-optical video backhaul, which of the following can be used in scenarios where power supply, management, lightning protection, and intelligence are required?
- A . EG8040C
- B . P622E
- C . T672E
- D . EG8084P
The actual effective bandwidth of EPON downstream is about 0.96G. If all users on a single PON port subscribe to 1000M packages, how many users can it support at most?
- A . 0
- B . 2
- C . 4
- D . 8
Which of the following statements about the high reliability of POL networks is incorrect?
- A . Type B phase
- B . Type C has higher protection cost
- C . Type B and Type C protection networking is feasible
- D . P622 can provide dual-link uplink protection
- E . Type B and Type C protection: When the main fiber fails, it can automatically switch to another fiber.
Which of the following description about XGSPON is wrong?
- A . The maximum downstream rate is 9.95 Gbit/s, and the maximum upstream rate is 9.95 Gbit/s.
- B . Maximum splitting ratio 1:256; a single PON port can access more ONUs, suitable for high-density scenarios
- C . Improve the frame structure to adapt to the 10G rate and enhance the flexibility of DBA allocation
- D . Simplify the physical layer message management mechanism, which is lower than GPON in terms of security and energy saving.
Which of the following is not included in common GPON optical module type?
- A . CLASSB+
- B . CLASSB++
- C . CLASSC+
- D . CLASSC++/CLASSD
Which of the following ONT models support WIFI?
- A . HG8040F5
- B . EG8040C
- C . HG8546M
- D . HG8042
What are the ONU user-side interfaces commonly used in radio and television ONUs?
- A . 4FE
- B . 4GE
- C . 1GE+3FE
- D . 2GE+2FE
The actual effective bandwidth of GPON downstream is about 2.3G. If all users on a single PON port subscribe to 1000M packages, how many users can it support at most?
- A . 2
- B . 8
- C . 16
- D . 32
What is the maximum capacity of a single wave in Huawei’s financial data center transmission solution?
- A . 40G
- B . 100G
- C . 200G
- D . 400G
Huawei Financial Data Center Transmission Solution FC Interface Maximum Support
- A . FC1600
- B . FC2400
- C . FC3200
- D . FC4000
In Huawei’s financial data center transmission solution, which of the following is mostly used for the five major banks, joint-stock banks, and local banks with large business volumes?
- A . OSN9800UPS
- B . OSN7500
- C . OSN1800V
- D . OSN12800
What is the device with small size, high integration and unified platform in Huawei’s financial data center transmission solution?
- A . OSN9800UPS
- B . OSN1500
- C . OSN1800V
- D . OSN810
What is the main application scenarios of DC908?
- A . Complex Metropolitan Network
- B . Backbone network
- C . DC point-to-point interconnection
What is the generally recommended minimum DCI latency for the financial industry ?
- A . <50ms
- B . <10ms
- C . <100ms
- D . <1ms
How to obtain optical fiber for DCI scenarios?
- A . Lease
- B . New construction
- C . Purchase
In which year does Document No. 996 require the construction of the video network?
- A . 2019
- B . 2020
- C . 2021
- D . 2022
In the current RPR ring network model in the subway field, a reverse dual-ring structure is adopted. What is the bandwidth of the dual-ring?
- A . 622MA
- B . 1.25G
- C . 2.5G
- D . 10G
What are the main features of Huawei’s highway transmission solution?
- A . Trunk ASON + road section hard pipe
- B . Thousands of ASON lines + road section soft pipes
- C . Trunk ASON + road section soft and hard pipe
In the highway access solution, which transmission product does Huawei recommend first?
- A . OSN3500
- B . OSN580
- C . OSN1800
- D . OSN7500
The subway MS-OTN solution can use lisence to control bandwidth . Which of the following bandwidth cannot be achieved by license control?
- A . 100G
- B . 80G
- C . 40G
- D . 20G
Which network management system is recommended for subway dedicated transmission network ?
- A . U2000-T
- B . NCE-T
- C . eSight
- D . NCE-B
Which of the following descriptions of railway business network security and reliability requirements are incorrect ?
- A . TDM services and Ethernet services are physically isolated using different hard pipes
- B . Different Ethernet subsystems use ODUk physical pipes to isolate services
- C . E1 services are on the TDM plane, and IP services are on the packet plane. The encapsulation and forwarding efficiency of the two types of services are optimized.
- D . Business interfaces tend to be IP-based, so physical isolation of business is no longer required
What solution do we mainly promote for the radio and television county and township transmission network?
- A . MSTP solution
- B . Enhanced MSTP solution
- C . MS-OTN Convergence Solution
- D . EPTN solution
What is the biggest difference between radio and television and operators before 2019?
- A . Wireless Services
- B . Private Line Services
- C . Home Broadband Services
- D . Video services
Which service accounts for the largest proportion of traffic in the radio and television bearer network?
- A . Video
- B . Broadband
- C . Attract customers
- D . Wireless
What is the maximum speed that Huawei 1800 series devices can record in a single wave?
- A . 2.5G
- B . 10G
- C . 40G
- D . 100G
The power OTN backbone communication network is mainly used to carry () services.
- A . Scheduling Automation
- B . Dispatch Phone
- C . Data communication network
- D . SCADA
The main product currently promoted by the power OTN backbone communication network is ().
- A . OSN1800IIV
- B . OSN8800T32
- C . OSN9800M24
- D . OSN9800U32
The advantages of the power distribution network automation xPON solution over other solutions do not include ().
- A . High bandwidth
- B . Passive network has high reliability
- C . Applicable to areas where fiber coverage is difficult
- D . Less affected by electromagnetic interference
The voltage level of the substation not covered by the power transmission and transformation communication network is ().
- A . 10kv
- B . 35kv
- C . 110kv
- D . 220kv
The advantages of the SDH ultra-long-distance solution used in the power industry do not include ().
- A . Ultra-long distance capability
- B . Leading
- C . Unified network management of optical amplifiers and MSTP equipment
- D . The optical amplifier system does not require additional network management channels
- E . Supports amplification technologies such as Raman and remote pumping
The integration of power transmission and transformation integrated transmission solutions does not include ().
- A . Industry integration, integration of industry needs, such as 2M optical interface, 2MASON
- B . Communication technology convergence, converged communication technology development trend, such as SDH/OTN/PKT unified equipment
- C . Client-side interface integration, integrating low-speed interfaces such as traditional PCM devices
- D . Integration of advanced concepts and hot spots, such as 5G and WIFI6
Which of the following is not an advantage of the enhanced MSTP built-in PCM solution over the traditional solution?
- A . Reduce the number of network failure points and improve network reliability
- B . Save room space
- C . End-to-end management services, simple operation and maintenance
- D . Improve signal transmission quality
The SDH frame structure includes
- A . Channel overhead, information payload, and segment overhead
- B . Regeneration section overhead, multiplexing section overhead, management unit pointer, information payload
- C . Containers, virtual containers, reuse, mapping
- D . Regeneration section overhead, multiplexing section overhead, channel overhead, management unit pointer
What is the timing working mode of SDH equipment?
- A . External Synchronous Timing
- B . Extract from STM-N received signal
- C . Internal Timing
- D . All of the above
Under the ADM configuration in the STM-16 level two-fiber bidirectional multiplex section shared protection ring, which of the following is the service protection situation?
- A . The two circuit boards back up each other
- B . Half the capacity in one board is used to protect half the capacity in the other board
- C . Two circuit boards, one main and one backup
- D . The two circuit boards have nothing to do with each other
What do the red marked panels in the configurator mean?
- A . Panel Control
- B . Longer delivery time for panels
- C . Panels are sold normally
- D . Discontinued boards
What is the wave number of the commonly used CWDM system?
- A . 4
- B . 8
- C . 16
- D . 32