The actual effective bandwidth of EPON downstream is about 0.96G. If all users on a single PON port subscribe to the 100OM package, how many users can it support at most?
- A . 0
- B . 2
- C . 4
- D . 8
The reason why the Huawei’s financial data center transmission solution can provide low latency is that:
- A . No DCM
- B . No single board
- C . No power on
- D . No installation required
Which series of Huawei MXU products are recommended in FTTO construction scenarios?
- A . MA5621 Series
- B . MA5633 Series
- C . MA567X Series
- D . 10GPON series
Which of the following descriptions of the 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 connections tend to be IP-based, so physical isolation of business is no longer required
In all-optical video backhaul, what can be used in scenarios where high network reliability is required?
- A . EG8040C
- B . P622E
- C . T672E
- D . EG8084P
What is the specified line impedance for a 2Mbps electrical interface ?
- A . None of the above
- B . 75Q (unbalanced) or 120Q (balanced)
- C . 75Q (unbalanced)
- D . 120Q (balanced)
On the railway mainline, what is the recommended bandwidth for the section layer of the main MS-OTN solution?
- A . 622M
- B . 2.5G
- C . 10G
- D . 40G
Which of the following is not a key message for the "IP+optical" fusion solution?
- A . Simple architecture
- B . Easy to evolve
- C . Big Data Analysis
- D . Intelligent Operation and Maintenance
Which of the following descriptions of the challenges that current railway MSTP solutions face in future service evolution is incorrect?
- A . The bandwidth of interval 622M is insufficient
- B . Unable to support future LTE1588V2 clock time synchronization protocol
- C . OTN functions must be supported to carry railway services
In the Huawei’s financial data center transmission solution, which 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
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
How many challenges does the financial active-active data center transmission interconnection face?
- A . 1
- B . 2
- C . 3
- D . 4
How many service slots are there in the OSN980OM24 subrack?
- A . 32
- B . 12/24
- C . 24
- D . 12
When there are a large number of analog services on the current network, which description of Huawei transmission equipment is wrong?
- A . Analog/digital integrated load
- B . Support SDI/HD-SDI interface
- C . Can provide video matrix function
- D . Support FE/GE/10GE and other interfaces
Under the ADM configuration in the STM-16 level two-fiber bidirectional multiplex section shared protection ring, the service protection situation is:
- A . Two circuit boards back up each other
- B . Half of the capacity of one board is used to protect half of the capacity of the other board
- C . Two circuit boards, one master and one backup
- D . The two circuit boards have nothing to do with each other
The maximum cross-connect capacity of OSN980OM24 is:
- A . 1.2G
- B . 2.4T
- C . 4.8T
- D . 10T
What ONT model is supported for Wi-Fi?
- A . HG8040F5
- B . EG8040C
- C . HG8546M
- D . HG8042
The incorrect description of XGSPON is:
- 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
In Huawei’s all-optical campus network solution, which solution should be adopted if there are 100-2000 information points on campus?
- A . EPON Networking
- B . IP+optical
- C . Fusion of all light
- D . 10G EPON Networking
Regarding defense against DoS attacks, which of the following statements is incorrect?
- A . Anti-DoS attack refers to the system’s defense measures against DoS attacks by restricting the reception of protocol packets sent by users.
- B . For users who initiate DoS attacks, the port/ONTGemport where the user is located will be added to the blacklist. For blacklisted users, the system administrator can force the user to log off the line
- C . In a DoS attack, the attacker looks for an entry point into the internal network and uses the attack to prevent legitimate users from accessing resources or routers.
- D . DoS (Denial of Service) attack refers to a malicious user sending a large number of protocol packets to attack the system, causing the system to be unable to process the service requests of normal users, that is, denying service to normal users.
Which of the following authentication methods is the most secure?
- A . 802.1x authentication
- B . MAC Authentication
- C . MAB certification (Mac Address Bypass)
Which protocol can provide a secure channel for password and data encryption to avoid information leakage when logging into the OLT device remotely?
- A . Telnet
- B . TFTP
- C . FTP
- D . SSH
What is the maximum switching capacity of the new brand OLT EA5800-X7 main control board for enterprise exclusive access?
- A . 1920Gbit/s
- B . 8Tbit/s
- C . 3.6Tbit/s
- D . 480Gbit/s
Which of the following is an 8-port ONU?
- A . P613E-E
- B . P871E
- C . P602E
- D . F60OP-30-1GH
Different splitting ratios introduce different optical path attenuation. A 1:8 splitter is used in the optical path. Which of the following values may be the optical path attenuation value introduced by the splitter?
- A . 13.6
- B . 10
- C . 7.2
- D . 3.6
Compared with traditional switch networks, what kind of equipment does the POL all-optical network use to replace the aggregation layer switch?
- A . OLT
- B . Passive Splitter
- C . OTN wavelength division equipment
- D . ONT
GPON network can dynamically adjust bandwidth through upstream DBA method to achieve higher bandwidth utilization.
If a service needs to be guaranteed when using bandwidth and requires more bandwidth when the network is idle, which of the following DBA types should be set?
- A . Type2 guaranteed bandwidth
- B . Type4 maximum bandwidth
- C . Type 1 fixed bandwidth
- D . Type3 guaranteed bandwidth + maximum bandwidth
The ONU is powered on and goes, and no on-site configuration is required. How long does it take for services to be activated after powering on?
- A . 5 minutes
- B . 1 minute
- C . 20 seconds
- D . 10 minutes
What is the WiFi6 line rate that the main gateway of Huawei FTIR solution can support?
- A . 2Gbps
- B . 1Gbps
- C . 1.5Gbps
- D . 3Gbps
Which device of the following can support both AC power input and DC power input?
- A . MNA5800-X15
- B . MA5800-X2
- C . MA5800-GP16
- D . MA5800-X7
How to deal with the alarm during the configuration quotation process?
- A . Delete and then add the product to re-quote
- B . Modify the configuration according to the alarm content
- C . Check Ignore warnings
- D . Manually modify the configuration results to avoid the alarm
ESight’s license consumption mechanism: In Type B networking, how many licenses does one ONU consume?
- A . 1
- B . 2
- C . 3
- D . 0
For the broadcasting and TV home broadband scenario, what is the main 10G PON gateway ONU model currently on sale?
- A . HG8245H6
- B . HN8040H6
- C . HN8346X6
- D . HG8040H6
How to deal with the upgrade mark displayed on the quotation that was created locally for a long time but not formally submitted for review?
- A . Click Upgrade and submit after the upgrade is complete
- B . Click the upgrade icon and check the differences after upgrading to confirm they are correct before submitting
- C . Cannot submit directly, need to create a new quotation
- D . If no blocking warning message is displayed, just submit it directly
In the application of POL optical fiber composite cable, which of the following options are not characteristics of optical fiber composite cable?
- A . When using the optical fiber composite cable, users are at risk of electric shock
- B . Remotely control electricity consumption to eliminate safety hazards
- C . Get rid of power cord tail and deploy quickly
- D . ONU/AP is free from power consumption and installation location is not restricted
Which of the following is the correct description of the SmartAXEA5800WiFi tuning license activation management method?
- A . Can be activated and managed on NCE-FAN and stand-alone
- B . Can only be activated and managed on NCE-FAN
- C . Can be activated and managed in eSight and stand-alone
- D . Management can only be activated in eSight
Which of the following statements about firewall blacklist is incorrect?
- A . Messages sent by non-blacklist users can be sent through
- B . When the blacklist and advanced ACL are used together, the messages sent by the blacklist users that meet the ACL permit rules can pass, and other messages are discarded
- C . Firewall blacklist is a way to filter based on the destination IP of the message
- D . Firewall blacklist is a way to filter based on the source IP address of the message
Which of the following is an industrial ONU?
- A . P813E-E
- B . T823E-D
- C . P613E-E
- D . P871E
What is the maximum PoE power supply distance supported by Huawei’s optical-electric composite cable power supply unit S1016-L?
- A . 200m
- B . 400m
- C . 600m
- D . 800m
Regarding protection against IP/ICMP attacks, which of the following statements is correct?
- A . The principle of defending against IP/ICMP attacks on the user side is to discard the packets whose source IP from the user side is the system IP of the access device.
- B . The principle of defending against IP/ICMP attacks on the user side is to discard the messages from the user side whose destination IP is the system IP of the access device.
- C . The principle of defending against user-side IP/ICMP attacks is to discard all packets whose source IP is the system IP of the access device.
- D . The principle of defending against user-side IP/ICMP attacks is to discard all packets whose destination IP is the system IP of the access device.
Which EA5800 series OLT does not support centralized management and roaming of Wi-Fi ONU?
- A . EA5800-X7
- B . EA5801E-GP16
- C . EA5800-X15
- D . EA5801E-GPO8
GPON downstream bandwidth can reach 2.5G. What is the maximum splitting ratio that can be achieved?
- A . 1:32
- B . 1:16
- C . 1:64
- D . 1:8
Which of the following subdivision scenarios does not belong to large enterprises?
- A . Factory production line
- B . Comprehensive supermarkets
- C . All Light Hotel
- D . Office Building
In which direction does the GPON system support AES128 encryption to ensure the reliability of data transmission?
- A . Upstream support
- B . Downside support
- C . Support both upstream and downstream
- D . Neither uplink nor downlink is supported
In the power distribution network scenario, what are the main ONU models currently on sale?
- A . P602E
- B . EG8040c
- C . MA5621E
- D . T823-G
In the all-optical network architecture, which layer is the OLT located at?
- A . Terminal layer
- B . Access layer
- C . Core layer
- D . Convergence layer
Which of the following is the splitting ratio of the built-in splitter of the S1016-L optical-electric composite cable power supply unit?
- A . 2:32
- B . 2:16
- C . 2:8
- D . 1:16
How many GE interfaces does the P815E-G-L1 user side support?
- A . 24
- B . 8
- C . 2
- D . 16
When radio and television evolve from GPON to XGPON, what is the first card to be configured for OLT?
- A . XGPON board
- B . GPON board
- C . XGPON COMBO board
- D . XGSPON COMBO board
Which of the following ONUs is a GPON mode optical module ONU?
- A . P67OE
- B . S800E
- C . S600E
- D . S892E