NO.106 Which of the following IP addresses are not part of the private IP address?

• A. 172.128.0.1
• B. 10.255. 0.1
• C. 10.0.0.1
• D. 192.168.0.1

NO.107 Which of the following statement is correct?

• A. When the OCh path exists, you can directly create a client path. The NMS automatically creates an ODUk path.
• B. The optical layer path and the electrical layer path are independent. It is not necessary to delete the electrical layer path when deleting the optical layer path.
• C. The optical layer path must be deleted first when the electrical layer path is removed.
• D. Deactivation will delete the configuration of the U2000, which has no impact on the device side services.

NO.108 For the wavelength division system, configure the 1st-20th wave, use the NS4 single board, and test the M40 output port with the spectrum analyzer during the commissioning. It is found that the optical power of the 20th wave is significantly lower than the other 19 waves. The possible reasons are as follows: (Multiple Choice)

• A. The 20th channel corresponding to the M40V has a large insertion loss.
• B. The 20th wave OTU's RX port is incorrectly added with 5dB fixed light decay.
• C. The 20th wave OTU wave side light is too small
• D. The 20th wave OTU center is long drifted

NO.109 What are the classification of Ethernet performance tests? (Multiple choice)

• A. Network equipment performance verification test
• B. Network performance test
• C. Custom test

NO.110 Since the nonlinear effect is generated, its influence on the service signal cannot be repaired. Therefore, the treatment of the nonlinear effect of the existing network is to avoid the occurrence of nonlinear effects.

• A. TRUE
• B. FALSE

NO.111 The working mode provided by the line fiber quality monitoring function does not include _____.

• A. Intra-office mode
• B. Near-end mode
• C. Automatic mode
• D. Manual mode

NO.112 Which of the following reasons may cause a business error? (Multiple choice)

• A. The tail wire connector is seriously polluted
• B. Dispersion compensation is unreasonable, such as under- or over-compensation
• C. The temperature in the equipment room is too high
• D. Transmitting laser performance degradation of the originating OTU board
• E. The optical power of the incoming fiber is too high or too low

NO.113 The user-oriented interface and the interface for the transport network of the E-Line service are ____ and _____.

• A. UNI, UNI
• B. UNI, NNI
• C. NNI, UNI
• D. NN, NNI

NO.114 Which of the following service layer paths is required when creating OCh using the path method?

• A. ODUk
• B. OMS
• C. OTS
• D. Client

NO.115 The following basic principles for fault location in WDM systems are (). (Multiple Choice)

• A. First two-way, then one-way first
• B. First advanced, then low level
• C. First single wave, followed by multiple waves
• D. First locate external and then location transmission

NO.116 Daily equipment maintenance items, excluding:

• A. Check the cabinet and board indicators
• B. Check the room temperature, humidity and cleanliness
• C. Check device sound alarms
• D. Check the fan box and clean the air filter

NO.117 What are the functions of MPLS-TP OAM? (Multiple Choice)

• A. Alarm monitoring
• B. Performance monitoring
• C. Fault management
• D. Fault location

NO.118 Two PIU/APIU boards use the hot backup mode to supply power to the system on the OSN 1800 device, when a PIU/APIU board fails, the system can still work normally.

• A. TRUE
• B. FALSE

NO.119 The OSN 1800V supports the following packet protection features:

• A. PW APS
• B. Tunnel APS
• C. TPS
• D. LAG

NO.120 Which of the following description of the extended ECC is correct? (Multiple Choice)

• A. Extended ECC recommends to use manual basis, which reduces mutual negotiation between network elements.
• B. The scale of the extended ECC network (the sum of the server and the client) must not exceed 8.
• C. Extended ECC is divided into automatic extended ECC and manual extended ECC.One network element can only support one mode at the same time. These two methods cannot be directly docked.
• D. In the automatic extended ECC mode, you need to connect the Ethernet ports of the two NEs with a direct-connected network cable (or a standard network cable through B), extend the ECC, and specify the server and client.