Discuss HP HPE6-A85 Exam Topic 1 Question 3

When measuring signal strength, dBm is commonly used and 0 dBm corresponds to 1 mW power.

What does -20 dBm correspond to?

A.-1 mW

B.01 mw

C10 mW

D1mW

Suggested Answer: B

dBm is a unit of power that measures the ratio of a given power level to 1 mW. The formula to convert dBm to mW is: P(mW) = 1mW * 10^(P(dBm)/10). Therefore, -20 dBm corresponds to 0.01 mW, as follows: P(mW) = 1mW * 10^(-20/10) = 0.01 mW Reference: https://www.rapidtables.com/convert/power/dBm_to_mW.html

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18 comments · newest first

Rolland 11 months ago

I thought it would be more than that, but I guess not!

Avery 11 months ago

Yup, -20 dBm is .01 mW for sure.

Buffy 11 months ago

Wait, is it really that low? Sounds off.

Tamekia 12 months ago

Totally agree, it's definitely .01 mW!

Dannette 12 months ago

-20 dBm is actually 0.01 mW.

Dorothy 1 year ago

I’m not completely confident, but I feel like -20 dBm is less than 1 mW, maybe around 0.01 mW?

Roxanne 1 year ago

I vaguely recall that every 10 dBm change is a factor of 10 in power. So, -20 dBm should be 0.01 mW, right?

Isabelle 1 year ago

I think -20 dBm is actually 0.01 mW, but I might be mixing it up with another practice question we did.

Jaclyn 1 year ago

I remember something about dBm being a logarithmic scale, but I'm not sure how to convert -20 dBm to mW.

Ressie 1 year ago

Okay, let me see if I can figure this out. If 0 dBm is 1 mW, then -20 dBm must be less than that. I'm going to guess that it's 1 mW divided by 100, which is 0.01 mW. I'll select option B.

Shasta 1 year ago

I remember learning about this in class. If 0 dBm is 1 mW, then each 3 dB decrease is a halving of the power. So -20 dBm must be 1/100th of 1 mW, which is 0.01 mW. I'll go with option B.

German 1 year ago

Hmm, this one's a bit tricky. I know dBm is a logarithmic scale, but I'm not sure how to convert -20 dBm to actual power. I'll have to think about this one a bit more.

Aide 1 year ago

Okay, let's think this through. If 0 dBm corresponds to 1 mW, then -20 dBm must be less than 1 mW. I'm pretty sure it's 0.01 mW, so I'll go with option B.

Clare 1 year ago

I'm feeling pretty confident about this one. I think the answer is to enable management access on the Cluster IP (CLIP) address, as that will ensure changes are made on the primary.

Raelene 1 year ago

Okay, let me review what I know about containers. I'll try to break this down step-by-step.

Alease 1 year ago

I'm pretty sure it's option B, g_form.addInfoMessage(). That sounds like the most straightforward way to print a message on a blue background to the top of the form.

Tomas 1 year ago

I recall that creating decision packages can boost employee input and job satisfaction, which feels like a solid advantage to mention for the charity.

Pete 1 year ago

I'm pretty confident the answer is A, 192.1.1.100. The virtual server IP is on the internal VLAN, and that's where the traffic is reaching the servers, so that should be the first IP used.

HPE6-A85 Exam - Topic 1 Question 3 Discussion