Other Programming & Computer Science Answers

The topic for this assignment is on Internet of Things (IOT). (15) What’s the buzz? The Internet of Things revolves around increased machine-to-machine communication; it’s built on cloud computing and networks of data-gathering sensors; it’s mobile, virtual, and instantaneous connection; and they say it’s going to make everything in our lives from streetlights to seaports “smart You will write about the: 2.1 History (5) 2.2 Current applications (10)

1. Discuss cybercrimes including creation of malicious programs such as viruses, worms, Trojan horses, and zombies as well as denial of service attacks, Internet scams, identity theft, cyberbullying, rogue Wi-Fi hotspots, and data manipulation. (10) 2. Identify ways to safeguard computer against each of the following risk viruses, worms, Trojan horses, botnets, denial of service attacks, back doors and spoofing (10)

• Age-related maculopathy is a leading cause of blindness among people 65 and older in the United States, and is estimated to affect between 16 and 26% of people in this age group. In a recent study by Klein, residents aged 43 to 86 years in the town of Beaver Dam, Wisconsin were asked to participate in a study to determine whether cigarette smoking was related to age-related maculopathy. At a baseline examination, participants were asked to report their lifetime smoking habits. After 5 years, participants had an examination to determine whether they had developed age-related maculopathy. The following table presents the number of cases of age-related maculopathy measured at the follow-up examination among the 1232 male participants ages 43-86 who did not have age related maculopathy (ARM) at the baseline examination:

Smoking status

N

Cases of ARM

Never smokers

368

26

Ever smokers

864

79

calculate the 5 year cumulative incidence of age related maculopathy in ever smokers and in never smokers

(a). Information system professionals in various organizations help to streamline and coordinate the performance of data processing and storage activities in their outfits to foster effectiveness and efficiency. Furthermore, to ensure accurate work performance, these professionals regularly examine the quality of information that they produce

.

(i). Discuss four categories of Information System professionals that a typical large business organization may have; and for each category, explain (in your own words) what they do on daily basis and skills they need to succeed in their work.

(ii). Explain qualities (or characteristics) that users expect information that they produce to have, so as to be considered useful for decision-making; and give practical examples to illustrate your answer.

(a) Elmax Africa is currently using the File Based system approach for their data storage. As a newly appointed database administrator…

(i). Explain in your own words to the board of directors the limitations of the file based approach with practical examples.

(ii).Introduce the concept of DBMS to the board of directors and outline the benefits Elmax Africa can derive from its investments in, and use of the proposed DBMS. Use practical examples to support your points.

(b). Explain in your own words how DB administrators can use Views to enable users interact with the DBMS efficiently.

(c). In your own words, explain how feedback fits into the input-processing-output-storage chain, in the context of computer-based information systems, for useful information to be produced for use in business organizations.

With the aid of a diagram, illustrate how horizontal cabling systems get connected from the 

telecommunications room to the work areas in the buildings. In your illustration, ensure you 

indicate various details that need to be involved, such as meters, etc.

The four branches of a bakery in new York made sales(in millions us dollars). As shown below

A 1.13 1.71 1.39 1.68 1.74 1.19 1.15 1.36

B 1.34 1.47 1.74 1.53 1.74 1.19 1.15 1.36

C 1.15 1.33 1.01 1.28 1.20 1.59 1.59 1.68

D 1.03 1.68 1.78 1.51 1.23 1.91 1.34 1.82

Write a well commented program in R that uses the data to compute the following parameter estimates

a) CS =(( (n₁-1)s²₁ +(n₂-1)s₂² +(n₃-1)s²₃ +(n₄-1)s²₄)/(n₁+n₂+n₃+n₄-4))^1/2

b)CM= (n₁x₁+n₂x₂+n₃x₃+n₄x₄)/(n₁+n₂+n₃+n₄)

where

n_i =sample size for the i^th branch

x_i =sample mean for the i^th branch

s²_i=sample variance for the i^th branch

i=1,2,3,4

Identify and describe the purpose of each layer of OSI model

1.      Create a new HTML file and save it

as Laboratory1.html

2.      The title should be “Laboratory 1”

3.      Using the Personal Web page that you

had submitted last meeting. Enhance its layout by using Layout table and

different CSS layouts that we’ve been discuss