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Shkiper50 [21]
3 years ago
10

Which of the following is NOT a valid method to increase a variable named score by 1?

Computers and Technology
1 answer:
Fofino [41]3 years ago
5 0

Answer:

a.

++score = score + 1

Explanation:

First you have to understand the increment operator;

There are three possible ways to increment the value of variable by 1.

1.  <u>post increment</u>

syntax:

name++

it using in expression first then increase the value by 1.

2. <u>Pre increment</u><u> </u>

syntax:

++name

it increase the value by 1 before it using in expression.

3. simple method

name = name +1

In the question,

option 1: ++score = score + 1

it increase the value of score by 2 because their are two increment is used first for (score + 1) and second ++score.

Therefore, the correct option is a.

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5.14 Describe how the compare and swap() instruction can be used to provide mutual exclusion that satisfies the bounded-waiting
Naddik [55]

Answer:

Explained below

Explanation:

Compare and Swap(C&S) is simply an atomic operation whereby the compare and swap operations are automatically executed.

Now compare and Swap basically needs 3 arguments namely:

- 2 old values which we will label X and Y

- 1 new value which is written in X that we will call Z

Thus, we now have; C & S = {X, Y, Z}

To explain this well, let X be a variable where X has a value of 7.

Now, if a programmer gives a program me that X be multiplied by 2,then what C&S operation will do is;

I) Y = X where Y is a new variable.

II) Result = C&S(X, Y, X*7)

Variable X is global and this means that mere than one process and more than 1 thread can see the variable X.

Now, if a process named P1 wants multiply the variable X by 7 using C&S operation, it will first make a local copy of variable X (which in this case is now the new variable Y). After that it will atomically compare X & Y and if they are equal, it will replace X with 10X.

However, if they are not equal, P1 will re-read value of X into Y and carry of C&S instruction again.

8 0
3 years ago
You configure a Windows laptop for a user who frequently travels and must connect to several wireless networks. While at a new b
aliina [53]

Answer:

Turn on file and printing sharing for all networks.

Explanation:

Windows has several security features when connecting to a network. In the control panel, you can access to Network and internet > Network and sharing center > Advanced sharing options. There you will see 3 different profiles, one for private networks, one for guest or public networks, and one for all networks.

You should take one of the 2 options. Enable file and printer sharing for all networks, so he can just print without doing anything more. Or keeping the print sharing just for private networks, and adding his new branch office's network to the private networks list.

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3 years ago
You are writing a report about a trip you made to several cities last month. Which of the following paragraph styles would be th
AlekseyPX
I would say B would be the best answer choice out of the given choices
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You will create two classes, one for a box and one for a triangle. Each of the figures, the box and the triangle, will have an o
Softa [21]

I believe it should be

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3 years ago
How to do codehs 7.4.4 Square with Return Values?
GaryK [48]

The codehs 7.4.4 program is meant to return the square of a number

<h3>How to write the actual program</h3>

The program in Python, where comments are used to explain each line is as follows:

#This gets input for the number

userNum = int(input("Number: "))

#This prints the square of the number

print(userNum**2)

Read more about Python programs at:

brainly.com/question/16397886

3 0
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