Huawei
H31-341_V2.5 · Question #495
Loopback is a common operation for daily maintenance and troubleshooting. Which of the following description of loopback operation is correct? (Multiple choice)
The correct answer is A. It is necessary to consider increasing the optical attenuation when performing hardware loopback B. After performing the inner loopback, the signal flows to the outside of the WDM network element D. After performing the outer loopback, the signal flows to the inside of the WDM network element. See the full explanation below for the reasoning.
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
How the community answered
(20 responses)- A75% (15)
- C25% (5)
Community Discussion
No community discussion yet for this question.