Table/indexed.
Let's look at the three options and see what their advantages and disadvantages are:
Contiguous - In this scheme, the file is stored in contiguous blocks of the disk. It allows for easy random access of the data, but requires a contiguous sequence of blocks large enough to handle the entire file. Since the size of the file specified in this question varies quite a bit over it's lifespan, you're either going to be wasting a lot of space by having an allocation large enough to handle the maximum sized file, or the file will need to be copied whenever it grows and "bumps" into a file that was allocated after it. Because of this, this method is not the best.
Linked - The file is stored as a single, or double linked list of file blocks. This allows for the file to grow or shrink as needed, using only the amount of space needed for the file. Unfortunately, this storage scheme doesn't allow for random access of the file contents and the file can only be accessed sequentially. The question for this problem doesn't specify how the file is being accessed, so as long as random access isn't required, then this would be a reasonable allocation scheme. But I'm assuming that random access will be required, in which case, this scheme isn't ideal.
table/indexed - In this scheme, some disk blocks are used as tables to point to other disk blocks that actually contain the file data. It's almost as fast as contiguous allocation for random access of the file contents, yet allows for the growth and shrinkage of a file like linked allocation. As such, it handles all use cases at a relatively minor cost in total storage required. So this would be the most appropriate allocation scheme since the file access behavior wasn't specified in this question.
Answer:
Pam and Lenny's Ice Cream Shop
a. The effect of the promotion on operating income for the second week of February is an increase by $350.
b. The promotion should occur. The shop will make additional operating income of $350 within the second week. And there will be spillover positive effects during the coming weeks after the promotion.
Explanation:
a) Data and Calculations:
Selling price per cone of ice cream = $1.60
Variable expenses = $0.35
Contribution = $1.25
Fixed costs per month = $2,200
Additional sales from the promotion = 650 cones
Revenue from additional sales = $1,040.00 ($1.60 * 650)
Variable cost 227.50 ($0.35 * 650)
Cost of promotions:
Giveaways 297.50 ($0.35 * 850)
Advertising costs 165.00
Total costs $690.00
Additional income $350.00
Answer:
A representative gives a seminar to investors, making a presentation about successful hedge fund strategies. It is attended by 10 retail clients and 20 institutional clients. FINRA defines this as: a retail communication.
Explanation:
Hope this helps!
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