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Practical connection: network survey | Information Systems homework help

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Practical Connection: Network Survey

Introduction

Network defenses rely first on understanding the current configuration of hosts, services, and protocols in use within the organization. Before it is possible to plan to change anything, you must first understand what is present and where it is located within the network. The initial phase of any network security realignment process involves identifying existing resources.

Scenario

You have been working as a technology associate in the information systems department at Corporation Techs. The Corporation Techs’ management is concerned that they are losing business to a competitor whose bids are too accurately just under the bids offered by Corporation Techs––by an exact amount. A security firm was contracted to conduct a review of Corporation Techs’ systems, identifying unauthorized access to the Web server as a potential source of compromise due to the shared reporting and public Web site functions. The packet trace and vulnerability scans gathered during this review are available for your use.
The Web server provides public access to the organization’s static Web site for contact information, while sales team members in the field transfer contract and bid documents using a site secured with a logon and password. Corporation Techs has budgeted for new networking hardware but does not want to add additional servers due to cooling issues. Your manager has asked you to create a security plan that will prevent unauthorized access, while making sure that both public and secured Web access remain available.

Tasks

The data and information you need to complete this part of the project are provided to you. (See the Required Source Information and Tools section at the beginning of this document.) In this part of the project, you need to conduct a survey of the existing hosts, services, and protocols within Corporation Techs’ network. Specifically, you need to:

  1. Access the PCAP data using NetWitness Investigator.
  2. Identify hosts within the Corporation Techs’ network.
  3. Identify protocols in use within the Corporation Techs’ network.
  4. Develop a list of hosts and services provided by each.
  5. Create a professional report detailing the information above as the initial document for development of the network security plan.

Write the network survey results as detailed in the instructions above.

Evaluation Criteria and Rubrics

Evaluation ParametersPercentage WeightDid the student demonstrate an understanding of the competencies covered to date?30ptsDid the student include all hosts identified within the provided packet trace?30ptsDid the student include all services and protocols identified within the provided packet trace and align them with the proper host?30ptsDid the student create a professional, well-developed draft with proper grammar, spelling, and punctuation?10ptsTotal100pts
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July 1, 2023
    
  1. The Times per week a student uses a lab computer are normally distributed, with a mean of 6.6 hours and a standard deviation of 1.1 hours.  A student is randomly selected. Find the following probabilites

 

  a) Find the probability that a student uses a lab computer less than 4 hours per week is

b ) The probabilty that student uses a lab computer between 5 to 7 hours per week is

c) The probability that a student uses a lab computer more than 8 hours per week is

All answers round to 3 decimal places

  1. A researcher wishes to estimate with 95% confidence. The proportion of adults who have high speed internet. Her estimate must be 1% of the true proportion.
    Find the minimum sample size needed using a prior study that found 34% of the respondents saying they have high speed internet. Then find the minimal sample size for no preliminary estimates available
  2. A random sample of forty-two 200-meter swims has a meant time of 3.724 minutes and a standard deviation of 0.080 minutes. A 95% confidence interval for the population mean time is (3.704,3.744)

Construct a 95% confidence interval for the population mean time using a standard deviation of 0.05 minutes. Which confidence interval is wider?

  1. The state test scores for 12 randomly selected high school seniors are shown below

Assume the population is normally distributed.

 

1428       1220       990        

698         729         831        

730         749         546        

 

(a)    Find the sample mean

(b)   Find the sample standard deviation.

(c)    construct a 99% confidence interval for the population mean u

5.  Assume the Poison distribution applies use the given mean to find the indicated probability.

Find P(4) when u=8

6..

Find the equation of the regression line for the data. Then construct a scatter plot of the data and draw the regression line. (the pair of variables has a significant correlation) then us the regression equation to predict the value of y for each of the given x-values, if meaningful. The table shoes shoe size and height in inches for 6 men.

 

Shoe size, x

Height, y

6.0

65.5

10.0

70.5

11.0

72.5

11.5

74.5

12.0

74.5

13.0

72.5

 

What is the regression equation?

Predict the value of y for x = 9.5

Predict the value of y for x = 8.0?

Predict the value of y for x = 14.5?

Predict the value of y for x = 9.0 ?

7.  For your study on the food consumption habits of teenage males you randomly select 10 teenage males and aske each how many 12 ounch servings soda he drinks each day. The results are below. At a=0.01, is there enough evidence to support the claim that teenage males drink fewer than three 12ounce servings of soda per day? Assume the population is normally distributed?

3.4

2.9

2.6

2.1

1.9

3.9

2.6

3.6

3.5

1.2

Write the claim mathematically and identify Ho and Ha ?

Use technology to find the P-value

Decide whether to reject or fail to reject the null hypothesis?

Interpret the decision in the context of the original claim.

8. An employment information service claims the mean annual pay for the full-time male workers over age 25 without a high school diploma is $22,350. The annual pay for a random sample of 10 full-time workers over age 25 without a high school diploma is listed. At a=0.10, test the claim that the mean salary is $22,350. Assume the population is normally distributed.

20,650

21,135

22,355

21,399

22,974

16,914

19,150

23,194

24,187

26,287

 

Write the claim mathematically and identify Ho and Ha ?

Find the critical value and identify the rejection region?

Find the standardized test statistic.

Decide whether to reject or fail to reject the null hypothesis?

Interpret the decision in the context of the original claim.?

9. A company that makes cola drinks states that the mean caffeine content per 12-ounch bottle of cola is 50milligrams. You want to test this claim. During your test you find that a random sample of thirty 12-ounce bottles of cola has a mean caffeine content of 49.3 milligrams with a standard deviation of 6.6 milligrams. At a=0.02, can you reject the companys claim?

 

Write the claim mathematically and identify Ho and Ha ?

Find the critical value and identify the rejection region?

Decide whether to reject or fail to reject the null hypothesis?

10. The altitude (in thousands of feet) and speed of a plane(in feet per second) for various altitudes is shown below.

Altitude, x

Speed, y

0

962.2

5

1106.8

10

981.8

15

1016.8

20

994.7

25

1007.8

30

1033.1

35

1104.9

The correlation is strong or weak  AND positive or  negative linear correlation?

 

default image
July 1, 2023
    
  1. The Times per week a student uses a lab computer are normally distributed, with a mean of 6.6 hours and a standard deviation of 1.1 hours.  A student is randomly selected. Find the following probabilites

 

  a) Find the probability that a student uses a lab computer less than 4 hours per week is

b ) The probabilty that student uses a lab computer between 5 to 7 hours per week is

c) The probability that a student uses a lab computer more than 8 hours per week is

All answers round to 3 decimal places

  1. A researcher wishes to estimate with 95% confidence. The proportion of adults who have high speed internet. Her estimate must be 1% of the true proportion.
    Find the minimum sample size needed using a prior study that found 34% of the respondents saying they have high speed internet. Then find the minimal sample size for no preliminary estimates available
  2. A random sample of forty-two 200-meter swims has a meant time of 3.724 minutes and a standard deviation of 0.080 minutes. A 95% confidence interval for the population mean time is (3.704,3.744)

Construct a 95% confidence interval for the population mean time using a standard deviation of 0.05 minutes. Which confidence interval is wider?

  1. The state test scores for 12 randomly selected high school seniors are shown below

Assume the population is normally distributed.

 

1428       1220       990        

698         729         831        

730         749         546        

 

(a)    Find the sample mean

(b)   Find the sample standard deviation.

(c)    construct a 99% confidence interval for the population mean u

5.  Assume the Poison distribution applies use the given mean to find the indicated probability.

Find P(4) when u=8

6..

Find the equation of the regression line for the data. Then construct a scatter plot of the data and draw the regression line. (the pair of variables has a significant correlation) then us the regression equation to predict the value of y for each of the given x-values, if meaningful. The table shoes shoe size and height in inches for 6 men.

 

Shoe size, x

Height, y

6.0

65.5

10.0

70.5

11.0

72.5

11.5

74.5

12.0

74.5

13.0

72.5

 

What is the regression equation?

Predict the value of y for x = 9.5

Predict the value of y for x = 8.0?

Predict the value of y for x = 14.5?

Predict the value of y for x = 9.0 ?

7.  For your study on the food consumption habits of teenage males you randomly select 10 teenage males and aske each how many 12 ounch servings soda he drinks each day. The results are below. At a=0.01, is there enough evidence to support the claim that teenage males drink fewer than three 12ounce servings of soda per day? Assume the population is normally distributed?

3.4

2.9

2.6

2.1

1.9

3.9

2.6

3.6

3.5

1.2

Write the claim mathematically and identify Ho and Ha ?

Use technology to find the P-value

Decide whether to reject or fail to reject the null hypothesis?

Interpret the decision in the context of the original claim.

8. An employment information service claims the mean annual pay for the full-time male workers over age 25 without a high school diploma is $22,350. The annual pay for a random sample of 10 full-time workers over age 25 without a high school diploma is listed. At a=0.10, test the claim that the mean salary is $22,350. Assume the population is normally distributed.

20,650

21,135

22,355

21,399

22,974

16,914

19,150

23,194

24,187

26,287

 

Write the claim mathematically and identify Ho and Ha ?

Find the critical value and identify the rejection region?

Find the standardized test statistic.

Decide whether to reject or fail to reject the null hypothesis?

Interpret the decision in the context of the original claim.?

9. A company that makes cola drinks states that the mean caffeine content per 12-ounch bottle of cola is 50milligrams. You want to test this claim. During your test you find that a random sample of thirty 12-ounce bottles of cola has a mean caffeine content of 49.3 milligrams with a standard deviation of 6.6 milligrams. At a=0.02, can you reject the companys claim?

 

Write the claim mathematically and identify Ho and Ha ?

Find the critical value and identify the rejection region?

Decide whether to reject or fail to reject the null hypothesis?

10. The altitude (in thousands of feet) and speed of a plane(in feet per second) for various altitudes is shown below.

Altitude, x

Speed, y

0

962.2

5

1106.8

10

981.8

15

1016.8

20

994.7

25

1007.8

30

1033.1

35

1104.9

The correlation is strong or weak  AND positive or  negative linear correlation?

 

default image
July 1, 2023
    
  1. The Times per week a student uses a lab computer are normally distributed, with a mean of 6.6 hours and a standard deviation of 1.1 hours.  A student is randomly selected. Find the following probabilites

 

  a) Find the probability that a student uses a lab computer less than 4 hours per week is

b ) The probabilty that student uses a lab computer between 5 to 7 hours per week is

c) The probability that a student uses a lab computer more than 8 hours per week is

All answers round to 3 decimal places

  1. A researcher wishes to estimate with 95% confidence. The proportion of adults who have high speed internet. Her estimate must be 1% of the true proportion.
    Find the minimum sample size needed using a prior study that found 34% of the respondents saying they have high speed internet. Then find the minimal sample size for no preliminary estimates available
  2. A random sample of forty-two 200-meter swims has a meant time of 3.724 minutes and a standard deviation of 0.080 minutes. A 95% confidence interval for the population mean time is (3.704,3.744)

Construct a 95% confidence interval for the population mean time using a standard deviation of 0.05 minutes. Which confidence interval is wider?

  1. The state test scores for 12 randomly selected high school seniors are shown below

Assume the population is normally distributed.

 

1428       1220       990        

698         729         831        

730         749         546        

 

(a)    Find the sample mean

(b)   Find the sample standard deviation.

(c)    construct a 99% confidence interval for the population mean u

5.  Assume the Poison distribution applies use the given mean to find the indicated probability.

Find P(4) when u=8

6..

Find the equation of the regression line for the data. Then construct a scatter plot of the data and draw the regression line. (the pair of variables has a significant correlation) then us the regression equation to predict the value of y for each of the given x-values, if meaningful. The table shoes shoe size and height in inches for 6 men.

 

Shoe size, x

Height, y

6.0

65.5

10.0

70.5

11.0

72.5

11.5

74.5

12.0

74.5

13.0

72.5

 

What is the regression equation?

Predict the value of y for x = 9.5

Predict the value of y for x = 8.0?

Predict the value of y for x = 14.5?

Predict the value of y for x = 9.0 ?

7.  For your study on the food consumption habits of teenage males you randomly select 10 teenage males and aske each how many 12 ounch servings soda he drinks each day. The results are below. At a=0.01, is there enough evidence to support the claim that teenage males drink fewer than three 12ounce servings of soda per day? Assume the population is normally distributed?

3.4

2.9

2.6

2.1

1.9

3.9

2.6

3.6

3.5

1.2

Write the claim mathematically and identify Ho and Ha ?

Use technology to find the P-value

Decide whether to reject or fail to reject the null hypothesis?

Interpret the decision in the context of the original claim.

8. An employment information service claims the mean annual pay for the full-time male workers over age 25 without a high school diploma is $22,350. The annual pay for a random sample of 10 full-time workers over age 25 without a high school diploma is listed. At a=0.10, test the claim that the mean salary is $22,350. Assume the population is normally distributed.

20,650

21,135

22,355

21,399

22,974

16,914

19,150

23,194

24,187

26,287

 

Write the claim mathematically and identify Ho and Ha ?

Find the critical value and identify the rejection region?

Find the standardized test statistic.

Decide whether to reject or fail to reject the null hypothesis?

Interpret the decision in the context of the original claim.?

9. A company that makes cola drinks states that the mean caffeine content per 12-ounch bottle of cola is 50milligrams. You want to test this claim. During your test you find that a random sample of thirty 12-ounce bottles of cola has a mean caffeine content of 49.3 milligrams with a standard deviation of 6.6 milligrams. At a=0.02, can you reject the companys claim?

 

Write the claim mathematically and identify Ho and Ha ?

Find the critical value and identify the rejection region?

Decide whether to reject or fail to reject the null hypothesis?

10. The altitude (in thousands of feet) and speed of a plane(in feet per second) for various altitudes is shown below.

Altitude, x

Speed, y

0

962.2

5

1106.8

10

981.8

15

1016.8

20

994.7

25

1007.8

30

1033.1

35

1104.9

The correlation is strong or weak  AND positive or  negative linear correlation?

 

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