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riadik2000 [5.3K]
3 years ago
15

A technician is troubleshooting a small network with cable Internet service in which a user is receiving a message in her web br

owser stating a site cannot be found. While interviewing users, it is determined that every host on the network is experiencing the same issue with all websites. Which of the following is the first step in troubleshooting this issue?
a. Use a cable tester to test the patch cable for the first user who reported the issue.
b. Reboot the soho router connecting the lan to the cable modem.
c. Call the internet service provider and report the problem.
d. Replace the patch cable from the soho router to the cable modem.
e. Connect a computer directly to the cable modem and attempt to access the internet.
Computers and Technology
1 answer:
expeople1 [14]3 years ago
6 0

Answer:

Option E is correct.

Explanation:

A professional is fixing a cable internet access network by which a person in their internet browser receives a text saying that a link could not be reached. It would be known that each and every server along the network is having the individual problem across whole websites when interviewing a person.

So, connect the system to the wired connection directly, & try to access the internet for troubleshooting the following issue.

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Answer:

a) D = 4.88 * 10^(-14) m^2 / s

b)   <em>t </em>= 1.1 hr

Solution:

a) Magnesium in Aluminum diffusion:

D = Do * exp(-Qd / RT)

  =  (1.2 * 10^(-4) m^2 / s) * exp ( - 130,000 / 8.31 * 723.15)

  = 4.88 * 10^(-14) m^2 / s

D = 4.88 * 10^(-14) m^2 / s

b) The composition remains same at say the distance Xo:

(Cx - Co) / (Cs - Co) = Constant

Xo^2 / D_{550} * <em>t </em>= Xo^2 / D_{450} * 15

D_{550} * <em>t </em>= D_{450} * 15

(1.2 * 10^(-4) m^2 / s) * exp ( - 130,000 / 8.31 * 723.15) * <em>t</em>

(4.88 * 10^(-14) m^2 / s) * 15

by, solving for <em>t </em>we get:

 <em>t </em>= 1.1 hr

So, the time required is 1.1 hr.

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