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Consider two EDFA amplifiers in cascade. Each EDFA has an average input signal power of 10 mW and an average noise power of 1 mW. What is the OSNR of the system at the receiver.
Suggested Answer: A
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13 comments · newest first
HE
Heike
11 months ago
I thought the noise would be higher, but okay!
RE
Ressie
11 months ago
I think it’s actually 10 dB, not 20.
KA
Kanisha
11 months ago
Wait, are we sure about that? Sounds a bit high.
LI
Lizette
12 months ago
Definitely going with option A, 20 dB seems right!
TE
Terina
12 months ago
The OSNR is calculated as 10 * log10(P_signal / P_noise).
TE
Teddy
1 year ago
I’m pretty confident that the OSNR is calculated by taking the total signal power and dividing it by the total noise power, but I’m unsure how to apply it here with two amplifiers.
ET
Ettie
1 year ago
I feel like the answer might be around 10 dB, but I can't recall if that’s for one amplifier or both combined.
BU
Bulah
1 year ago
I think we practiced a similar question where we had to find the OSNR in dB, and I remember the formula involved the ratio of signal power to noise power.
XO
Xochitl
1 year ago
I remember something about calculating OSNR, but I'm not sure if I should add the noise powers or just take the average.
IR
Irving
1 year ago
I'm pretty confident about this one. The key is to focus on the typical delegation oversight program, not just the delegation agreement itself. I think option D is the correct answer.
OC
Octavio
1 year ago
This is a good question to test our understanding of cloud security and firewall management. I'll apply my knowledge of cloud infrastructure to select the most relevant reasons.
NO
Noel
1 year ago
"Show mac-address-table" seems too generic for VTEP, I think the answer has to be specific to VXLAN. So, I'm leaning towards option B.
MA
Mariko
1 year ago
I thought KMS allowed up to 60 days, but I could be confusing it with another service. It's so easy to mix these details up!