Questions
Consider a file currently consisting of 100 blocks. Assume that the File Control Block (or, the...
Consider a file currently consisting of 100 blocks. Assume that the File Control Block (or, the index block, in case of indexed allocation) is already in the RAM. Calculate how many disk I/O operations (“read block” or “write block”) are required for contiguous, linked, and indexed (single-level) allocation strategies, if the following conditions hold (In the contiguous allocation case, assume that there is no room to grow in the beginning, but there is a room to grow in the end. In the linked allocation case, assume that FCB stores pointers to the first and the last block of the file; note that if a block is added or removed at the front or the end of the file, then the corresponding pointer is to be updated in FCB, but, since FCB is in the RAM, it does not require additional I/O operations. Assume that the block information to be written to the hard disk is stored in RAM).
a. The block is added at the beginning
b. The block is added in the middle
c. The block is added at the end
d. The block is removed from the beginning
e. The block is removed from the end.
This question was answered before but they gave just the answers no explanation. Can someone explain how the numbers were derived?
In: Other
The Discount Appliance Store uses a continuous review system (Q system).
The Discount Appliance Store uses a continuous review system (Q system).
One of the company's items has the following characteristics:
- Demand =10 units/week (assume 52 weeks per year)
- Ordering or Setup Cost (S)=$ 45) order
- Holding cost (H)=$12 unit/year
- Lead Time (L)=3 weeks (constant)
- Standard Deviation in Weekly Demand = 8 units
- Cycle-Service Level =70%
What is the EOQ for this item?
What is the desired safety stock?
What is the desired reorder point R?
What is the total annual cost?
Suppose that the current policy is Q=80 and R=150. What will be the changes in average cycle inventory and safety stock if your EOQ and R values are implemented?
In: Other
PA 9-4 Consider again the company making tires for... Consider again the company making tires for...
PA 9-4 Consider again the company making tires for...
Consider again the company making tires for bikes is concerned about the exact width of their cyclocross tires. The company has a lower specification limit of 22.8 mm and an upper specification limit of 23.4 mm. The standard deviation is 0.19 mm and the mean is 23.1 mm.
(Round your answer to 4 decimal places.)
a.What is the probability that a tire will be too narrow?
(Round your answer to 4 decimal places.)
b.What is the probability that a tire will be too wide?
(Round your answer to 3 decimal places.)
c.What is the probability that a tire will be defective?
In: Other
Given an unfiltered half-wave rectifier circuit with an input ac voltage of 115 Vrms
Given an unfiltered half-wave rectifier circuit with an input ac voltage of 115 Vrms, a turns ratio of 4:1 (Npri:Nsec) and a load resistance of 50 Ω. Determine (a) peak value of the primary voltage, (b)peak value of the secondary voltage, (c) peak value of the load voltage, (d) dc load voltage, and (e) dc load current.
In: Other
Deadlocks. The Banker's algorithm is used for deadlock avoidance. Consider the state of resource availability and allocation defined by the following matrices.
Deadlocks. The Banker's algorithm is used for deadlock avoidance. Consider the state of resource availability and allocation defined by the following matrices.
(1) Assuming that the total amounts for resources R1, R2, and R3 are 10, 2, and 10, should a new request to the Banker's algorithm by process P3 to acquire one additional resource from R1 and one additional resource from R3 be approved or denied? Explain why or why not
(2) Assuming that the total amounts for resources R1, R2, and R3 are 10, 2, and 10, should a new request to the Banker's algorithm by process P4 to acquire one additional resource from R3 be approved or denied? Explain why or why not.
(3) Assuming that the total amounts for resources R1 and R2 are 10 and 2, what is the minimum amount for resource R3 that would render the above state a safe state under the Banker's algorithm? P3, and P4 to complete their execution subject to the Banker's algorithm amount for resource R3 that would make it possible for the Banker's algorithm to allow process
(4) Given your answer for part (3) what are all the possible orderings for the four processes P1, P2,
(5) Assuming that the total amounts for resources R1 and R2 are 10 and 2, what is the minimum P1 to complete its execution before all other three processes?
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1. Which of the following is a formal research method? Group of answer choices Looking in...
1. Which of the following is a formal research method?
Group of answer choices
Looking in company files
Brainstorming
Investigating primary sources
Talking with your boss
2. When should passive voice be used in business writing?
Group of answer choices
When you want to de-emphasize the action or the recipient of the action
Never
When you want to conceal the doer of the action
When you want to emphasize the bad news
3. Select ALL that apply
To build paragraph coherence, a writer should
Group of answer choices
repeat a key idea by using the same expression or a similar one.
show connections with transitional expressions.
use pronouns to refer to previous nouns.
4. In effective business writing, where in a paragraph does a topic sentence usually appear?
Group of answer choices
Midway through, to keep readers focused
At the end, to summarize what has been discussed
Topic sentences are unnecessary in business writing.
At the beginning, to let readers know what to expect
5. The sentence that expresses a paragraph's main idea is called the
Group of answer choices
topic sentence.
supporting content.
preview.
blueprint.
In: Other
It takes a barber 15 minutes to serve one customer. a. What is...
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In: Other
Consider the following snapshot of a system:
Consider the following snapshot of a system:
Allocation Max Available
ABCD ABCD ABCD
T0 3141 6473 2224
T1 2102 4232
T2 2413 2533
T3 4110 6332
T4 2221 5675
Answer the following questions using the banker’s algorithm:
a. Illustrate that the system is in a safe state by demonstrating an order in which the threads may complete.
b. If a request from thread T4 arrives for (2, 2, 2, 4), can the request be granted immediately?
c. If a request from thread T2 arrives for (0, 1, 1, 0), can the request be granted immediately?
d. If a request from thread T3 arrives for (2, 2, 1, 2), can the request be granted immediately?
In: Other
Corporate Finance
7. Calculating Real Rates of Return If Treasury bills are currently paying 4.5 percent and the inflation rate is 2.1 percent, what is the approximate real rate of interest? The exact real rate?
8. Inflation and Nominal Returns Suppose the real rate is 2.4 percent and the inflation rate is 3.1 percent. What rate would you expect to see on a Treasury bill?
9. Nominal and Real Returns An investment offers a 14 percent total return over the coming year. Alan Wingspan thinks the total real return on this investment will be only 10 percent. What does Alan believe the inflation rate will be over the next year?
10. Nominal versus Real Returns Say you own an asset that had a total return last year of 12.5 percent. If the inflation rate last year was 5.3 percent, what was your real return?
In: Other
Joe Henry's machine shop uses 2 comma 450 brackets during the course of a year
Joe Henry's machine shop uses 2 comma 450 brackets during the course of a year. These brackets are purchased from a supplier 90 miles away. The following information is known about the? brackets:
Annual demand 2,450
Holding cost per bracket per year $ 1.30
Order cost per order $ 19.25
Lead time 2 days
Working days per year 250 ?
a) What is the? EOQ = _____ units ?(round your response to two decimal? places).
In: Other
A variation of the round-robin scheduler is the regressive round-robin scheduler. This scheduler assigns each process...
In: Other
Attendance at Orlando's newest Disneylike attraction, Lego World, has been as follows Quarter Guests (in thousands)...
| Quarter | Guests (in thousands) | Quarter | Guests (in thousands) |
|---|---|---|---|
| Winter Year 1 | 63 | Summer Year 2 | 125 |
| Spring Year 1 | 89 | Fall Year 2 | 51 |
| Summer Year 1 | 155 | Winter Year 3 | 94 |
| Fall Year 1 | 77 | Spring Year 3 | 161 |
| Winter Year 2 | 65 | Summer Year 3 | 210 |
| Spring Year 2 | 84 | Fall Year 3 | 97 |
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Nationwide Auto Parts uses a periodic review inventory control system for one of its stock items....
Nationwide Auto Parts uses a periodic review inventory control system for one of its stock items. The review interval is 12 weeks, and the lead time for receiving the materials ordered from its wholesaler is 4 weeks. Weekly demand is normally distributed, with a mean of 125 units and a standard deviation of 25 units. Refer to the standard normal table LOADING... for z-values. a. What is the average and the standard deviation of demand during the protection interval? The average demand during the protection interval is nothing units. (Enter your response as an integer.)
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You want to test your current security configuration. Which method would you use to avoid detection?...
- You want to test your current security configuration. Which method would you use to avoid detection?
- Active reconnaissance
- Passive reconnaissance
- Credentialed vulnerability scan
- All of these
- You are formulating a vulnerability assessment to be performed by security analysis. Nmap is one of the tools to be used, what information will you expect the program provide about the target host(S)?
- Device
- Topology
- Service
- All of these
In: Other
Consider again the company making tires for bikes is concerned about the exact width of their cyclocross tires.
Consider again the company making tires for bikes is concerned about the exact width of their cyclocross tires. The company has a lower specification limit of 22.6 mm and an upper specification limit of 22.8 mm. The standard deviation is 0.16 mm and the mean is 22.7 mm.
a. What is the probability that a tire will be too narrow?
b. What is the probability that a tire will be too wide?
c. What is the probability that a tire will be defective?
In: Other