Huawei
H31-341_V2.5 · Question #495
H31-341_V2.5 Question #495: Real Exam Question with Answer & Explanation
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Question
Loopback is a common operation for daily maintenance and troubleshooting. Which of the following description of loopback operation is correct? (Multiple choice)
Options
- AIt is necessary to consider increasing the optical attenuation when performing hardware loopback
- BAfter performing the inner loopback, the signal flows to the outside of the WDM network element
- CHardware loopback is the loopback of the optical port and the electrical port with a pigtail and a self- loop
- DAfter performing the outer loopback, the signal flows to the inside of the WDM network element
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