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netineya [11]
1 year ago
11

Write a function, named "wait_die_scheduler" that takes a list of actions, and returns a list of actions according to the follow

ing rules. The actions given to the scheduler will only consist of WRITE and COMMIT actions. (Hence only exclusive locks need be implemented.) Each transaction will end with a COMMIT action. Before examining each action, attempt to perform an action for each of the transactions encountered (ordered by their names). After all the actions have been examined, continue to attempt to perform an action from each transaction until there are no more actions to be done. You will need to add LOCK, UNLOCK, and ROLLBACK actions to the list of actions to be returned, according to the Wait-Die protocol. If releasing more than one lock (for instance after a COMMIT), release them in order by the name of their object. Use the deferred transaction mode (only requesting locks when needed).

Computers and Technology
1 answer:
lidiya [134]1 year ago
4 0

Answer:

See attached picture for complete code.

Explanation:

See attached picture.

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A data scientist is writing a Machine Learning (ML) algorithm using a large data set.
Olenka [21]

The product of the data scientist, who writes a Machine Learning (ML) algorithm using a large data set, is called a data-driven model.

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4 0
2 years ago
A sum amounts to ₹2400 at 15% simple interest per annum after 4 years fond the sum.​
Elis [28]

Answer: $1,500

Explanation:

The future value of value using simple interest is:

Future value = Value * ( 1 + rate * time)

2,400 = Value * (1 + 15% * 4)

2,400 = Value * 1.6

Value = 2,400 / 1.6

Value = $1,500

6 0
1 year ago
A BCD code is being transmitted to a remote receiver. The bits are A3, A2, A1, and A0, with A3as the MSB. The receiver circuitry
NARA [144]
<span>BCD only goes from digit 0 (0000) to digit 9 (1001), because for 10 you need two digits, so all you've got to do is make a function that produces high for numbers from 10 (1010) to 15 (1111) as follows:
A3 A2 A1 A0   F
 0    0    0    0    0
 0    0    0    1    0
 0    0    1    0    0
 ...........................
 1    0    0    0    0
 1    0    1    0    1
 1    0    1    1    1
 1    1    0    0    1
 1    1    0    1    1
 1    1    1    0    1
 1    1    1    1    1
 
Then simplify the function: F = A3*A2 + A3*A1 Finally just draw or connect the circuit using NAND</span>
3 0
1 year ago
3) 5, 10, 15, 20 are items of data. Explain how these could become information and what knowledge
yKpoI14uk [10]

For example when there is research on how many people shoplift in a shopping centre per week. These numbers could show a increase in the number of shoplifters per week.

8 0
1 year ago
Use Excel to develop a regression model for the Consumer Food Database (using the "Excel Databases.xls" file on Blackboard) to p
m_a_m_a [10]

Answer:

Step 1 : Create an Indicator Variable for metro cities using formula mentioned in formula bar.

Step 2: Filter the Data on Metro cities i.e. select only those cities with Metro Indicator 1.

Step 3: Paste this filtered data to a new sheet.

Step 4: Go to Data - Data Analysis - Regression

Step 5: Enter the range of Y-variable and X-variable as shown. Select Output range and click on residuals. It will give you Output Summary and the Predicted Values along with Residuals

Please see attachment

5 0
2 years ago
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