Huawei
H31-341_V2.5 · Question #489
H31-341_V2.5 Question #489: Real Exam Question with Answer & Explanation
The correct answer is B. After performing the outer loopback, the signal flows to the inside of the WDM network element D. After the inner loopback is executed, the signal flows to the outside of the WDM network element. See the full explanation below for the reasoning.
Question
Loopback is a common operation for routine maintenance and troubleshooting. Which of the following statements about loopback operations are wrong? (Multiple choice)
Options
- AIt is necessary to consider increasing the optical attenuation when performing hardware loopback
- BAfter performing the outer loopback, the signal flows to the inside 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 the inner loopback is executed, the signal flows to the outside of the WDM network element
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