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Sonja [21]
3 years ago
13

Consider a file whose size varies between 4 kb and 4 mb during its lifetime. which of the three allocation schemes (contiguous,

linked and table/indexed) will be most ap- propriate
Business
1 answer:
uranmaximum [27]3 years ago
8 0
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.
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nevsk [136]

Answer:

8%

Explanation:

The internal rate of return is the discount rate that equates the after tax cash flows from an investment to the amount invested.

The IRR can be calculated using a financial calculator.

Cash flow in year zero = $-165,000

Cash flow each year from year one to seven = $31,692

IRR = 8%

To find the IRR using a financial calacutor:

1. Input the cash flow values by pressing the CF button. After inputting the value, press enter and the arrow facing a downward direction.

2. After inputting all the cash flows, press the IRR button and then press the compute button.

I hope my answer helps you

6 0
3 years ago
Using the data set below, what would be the forecast for period 5 using the exponential smoothing method? Assume the forecast fo
elena55 [62]

Answer:

The answer is C: 14300

Note: The actual answer is 14296, <em>and </em>the closest to that was option C.

Explanation:

Formula to calculate forecast using Exponential smoothing:

  •    F_{t} = F_{t-1} + \alpha ( A_{t-1} - F_{t-1} )

Where,

  • F_{t} = New Forecast
  • F_{t-1} = Previous period's forecast.
  • \alpha = Smoothing Constant
  • A_{t-1} = Previous period's Actual Demand.
  1. Calculating the forecast for period 5:

Data:

  • F_{5} = ?
  • F_{t-1} = 14000
  • \alpha = 0.4
  • A_{t-1} = 14750

Putting <em>values in the formula:</em>

F_{5} = 14000 + 0.4(14750-14000)

F_{5} = 14000 + 0.4 (740)

F_{5} = 14000 + 296

F_{5} = 14296

4 0
3 years ago
Assuming Year 2 net credit sales totaled $122,000, what was the company's average days to collect receivables
Montano1993 [528]

Answer:

44.88 days

Explanation:

Note: The full question is attached

Average amount of accounts receivables = ($16,000+$14,000)/2

Average amount of accounts receivables = $15,000

Average days to collect receivables = Days * AR / Credit sales  

= 365 * $15,000 / $122,000

= 44.87704918032787 days

= 44.88 days

4 0
3 years ago
Alpha Company is looking at two different capital​ structures, one an​ all-equity firm and the other a levered firm with ​$2.52
horrorfan [7]
Look on jiskha you will find your answer I promise
4 0
3 years ago
Costly Corporation is considering a new preferred stock issue. The preferred would have a par value of $1000 with an annual divi
shutvik [7]

Answer:

28.63%

Explanation:

The computation of the cost of preferred stock is shown below:

Cost of the preferred stock = Dividend ÷ Price of the stock

where,

Dividend is

= $1,000 × $15%

= $150

And, the price of the stock is

= Market value of the stock - flotation cost

= $576 - $52

= $524

So, the cost of preferred stock is

= $150 ÷ $524

= 28.63%

We ignored the marginal tax rate i.e 40%

3 0
3 years ago
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