1. Define and describe NAS. Assume you must implement a shared file system within the cloud. What company would you select? Why? What costs should your client expect to pay for cloud-based data on a gigabyte (GB) basis?
2. Assume that you must select a cloud-based data storage solution for your company. List the factors you would consider when selecting a vendor.
3. Once you have mapped this system, you will map relationships contained within the system. First, identify relationships within your system diagram that represent feedback loops, and represent those loops within your model. Then, identify a relationship within the system that could be modeled with a stock and flow or causal loop diagram, and model that diagram in Visio.
4.Compose a brief, 250- to 500-word summary of the given system, as well as the relationships present in this system. In your summary, describe the system, feedback loops, and other archetypes you identified within the system.
This week’s journal article focus on the how positive team culture can correct the impact of lagging leadership creativity. Additionally, we discussed how digital transformation leaders in regard to artificial intelligence (AI). After reviewing the reading, please answer the following questions:
Be sure to use the UC Library for scholarly research. Google Scholar is also a great source for research. Please be sure that journal articles are peer-reviewed and are published within the last five years.
The paper should meet the following requirements:
The writing should be clear and concise. Headings should be used to transition thoughts. Don’t forget that the grade also includes the quality of writing.
Articles:
Before you begin read: https://www.energy.gov/sites/prod/files/2014/03/f13/C2M2-v1-1_cor.pdf
Our class focuses on integrating many different aspects of cybersecurity, information security, and information assurance. Recent developments in the field of cybersecurity have resulted in a number of “maturity models” which can be used by external assessors to evaluate the maturity level of an organization’s cybersecurity management program.
For this discussion paper, you will need to research the Department of Energy’s Cybersecurity Maturity Model and then compare it to the NIST Cybersecurity Framework and other frameworks listed in the course readings. After you have done so, write a position paper in which you recommend a cybersecurity framework or maturity model as the basis for assessing the cybersecurity program for Padgett-Beale Financial Services. Assessments will be performed on an annual basis beginning one year after the company launches its new operations.
Your 5-7 paragraph position paper must answer the following questions (at a minimum). (You will need to write clearly and concisely to fit all required information into this restricted length.)
Post your position paper as a reply to this topic. Remember to cite your sources and place your reference list at the end of your posting.
1. Consider the data set shown in Table 5.20 (439 page). (Chapter 5)
(a) Compute the support for itemsets {e}, {b, d}, and {b, d, e} by treating each transaction ID as a market basket.
(b) Use the results in part (a) to compute the confidence for the association rules {b, d} −→ {e} and {e} −→ {b, d}. Is confidence a symmetric measure?
(c) Repeat part (a) by treating each customer ID as a market basket. Each item should be treated as a binary variable (1 if an item appears in at least one transaction bought by the customer, and 0 otherwise). Use this result to compute the confidence for the association rules {b, d} −→ {e} and {e} −→ {b, d}.
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2. Consider the transactions shown in Table 6.15, with an item taxonomy given in Figure 6.15 (515 page). (Chapter 6)
(a) What are the main challenges of mining association rules with item taxonomy?
(b) Consider the approach where each transaction t is replaced by an extended transaction t_ that contains all the items in t as well as their respective ancestors. For example, the transaction t = { Chips, Cookies} will be replaced by t_ = {Chips, Cookies, Snack Food, Food}. Use this approach to derive all frequent itemsets (up to size 4) with support ≥ 70%.
(c) Consider an alternative approach where the frequent itemsets are generated one level at a time. Initially, all the frequent itemsets involving items at the highest level of the hierarchy are generated. Next, we use the frequent itemsets discovered at the higher level of the hierarchy to generate candidate itemsets involving items at the lower levels of the hierarchy. For example, we generate the candidate itemset {Chips, Diet Soda} only if {Snack Food, Soda} is frequent. Use this approach to derive all frequent itemsets (up to size 4) with support ≥ 70%.
3. Consider a data set consisting of 220 data vectors, where each vector has 32 components and each component is a 4-byte value. Suppose that vector quantization is used for compression and that 216 prototype vectors are used. How many bytes of storage does that data set take before and after compression and what is the compression ratio? (Chapter 7)
1. The Physical Model was based on the idea that people did not really understand the work involved in the digital forensics world or how to treat it in court. With all the crime dramas on television, the average juror may now think that everything can be resolved in 60 minutes and is based on perfect DNA physical evidence and the digital “smoking gun” always found on the criminal’s computer.
How would you tailor your approach and reporting to address the fact that the jury may now think that without 100% conclusive evidence, the person should not be found guilty? Please avoid discussions about the presumption of innocence or a position that circumstantial evidence is never sufficient to find someone guilty. This discussion is for you to consider how you would convince someone that your circumstantial evidence is sufficient and how to counter the idea that perfect evidence is always available.
Your word count should be between 250-300 Words
2. Here is a case regarding computer forgery and how digital forensics was able to prove the underlying file was indeed forged. https://nakedsecurity.sophos.com/2019/01/17/telltale-font-scuppers-bankruptcy-trust-claim/
Basically, the document claimed to be created (and a printed copy signed and dated as proof, at a time before the fonts used in the document were available.
For this discussion, write 200-250 words on your opinion of this case. Can you think of other digital artifacts that could be used to prove that a computer file is not what it claims to be?
You are the inventory manager for Crafton’s Pet Supplies. You are currently preforming analysis to determine inventory levels, as well as the total value of inventory on hand. Your last steps will be to check the report for duplicate entries and format for printing.
Contrasting local and public test blockchains Contrasting local and public test blockchains.
In chapter 4, the author discusses different options for testing blockchain applications. For our course, we have chosen to use Ganache, a local test blockchain. Explore some of the advantages and disadvantages of using local and public blockchains to test apps and contrast the two options.
1Draw the corresponding ERD for the following Employee Database
