Use the web to learn more about the following Windows operating system tools: firewalls, automatic updates, and software that scans for viruses, spyware, and other malware. Read reviews by industry experts and users. Analyze the advantages and disadvantages of using built-in operating system tools. Do any built-in operating system tools present security concerns? If so, what would you recommend? Explore alternatives for each of the tools, and determine whether you should disable the Windows tool and if any risks exist. Compile your findings.

Assume that there is a 4% rate of disk drive failure in a year. a. if all your computer data is stored on a hard disk drive with a copy stored on a second hard disk drive, what is the probability that during a year, you can avoid catastrophe with at least one working drive? b. if copies of all your computer data are stored on three independent hard disk drives, what is the probability that during a year, you can avoid catastrophe with at least one working drive?

Jaina and tomas are being considered as new tenants in an apartment. the landlord looks at their creditworthiness because he wants to be sure his new tenant pays the rent on time and in full. the table below summarizes the information that was on their applications. application information questions jaina tomas how many years have you had your job? 5 2 what is your monthly salary? $1,850 $2,500 how many credit cards do you have? 4 1 how much debt do you have? $13,000 $7,000 how many times were you late with payments on credit cards in the past year? 5 1 who will the landlord decide to be more creditworthy and why? tomas because the ratio of his debt to income is less. jaina because she has had her job longer, which makes her look more stable. jaina because she has more credit cards available to her. tomas because he makes more money per month.

Which analyst position analyzes information using mathematical models to business managers make decisions?