Not sure on the first question, but the second would be answer choice a: Travel.state.gov since a website with .gov at the end tend to be trustworthy sources
Answer:
Following are the responses to the given question:
Explanation:
Its machine slows for each further level of evaluation by an n/m factor. Therefore are the times for implementation for levels 2, 3, and 4 are
.
So, the level values are:

Answer:
"Physical layer" is the correct answer.
Explanation:
- It dealt mostly with bit-level transfer across various equipment as well as it provides industrial automation connections to meet quality standards to something like digital downloads.
- The purpose of this layer would be to consolidate essential networking system compatibility so that information is being sent successfully.
Thus, the above is the correct answer.
<u>Answer:</u>
<em> </em><em>Modem is an hybrid device,</em><em> which is responsible for modulating and demodulating information. </em><em>It is a transmission medium and also it is a hardware tool used for connecting to internet.</em>
<u>Explanation:</u>
What is modulation?, let us understand. The <em>process of converting analog to digital signal is called modulation and demodulation is vice-versa.</em> The computer connects internet classically using telephone wire.
The <em>telephone wire understands only analog signal and a computer understands only digital signal.</em> So Modem’s role is to take care of this aspect while <em>connecting to the internet.</em>