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Pie
4 years ago
8

What is the technique in which a process can do nothing until it gets permission to enter its critical section but continues to

execute an instruction or set of instructions that test the appropriate variable to gain entrance? A. Spin Waiting B. General Semaphore C. Critical Resource D. Message Passing
Computers and Technology
1 answer:
iVinArrow [24]4 years ago
7 0

Answer:  A)Spin Waiting

Explanation: Spin waiting is the mechanism to wait in a loop till the permission for the entering the critical sector is granted.The permission is granted on the basis of availability of the lock. The loop continues to wait by tending to be in busy waiting situation .

Other options are incorrect because general semaphore is used for solving critical issues and achieving synchronization, critical resource can be used at one time at one certain situation and message passing is used for communication of object by sending and receiving message.Thus, the correct option is option(A).

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What is the difference between password protection and encryption? please answer quick, i cant pass this test for the life of me
sergiy2304 [10]

Answer:Password protection is like locking something in a safe-deposit. It means no one can get to the locked content without knowing the right combination. This method is used on separate documents, folders, and other data the computer's user may want to protect from other people who might have access to the device. The problem is, if someone interested in such content obtains the password or finds a way to open it without it, the content might be revealed despite the owner's efforts to keep it hidden. Unfortunately, there are a lot of ways hackers could obtain the password or hack in without it. For example, it could be obtained with the help of malware, or it might be guessed if the user chooses a weak password. Not to mention, when it comes to PDF documents, the passwords placed on them can be removed using the CMD window or specific.

Password encryption is a step up from password protection. The term can be a tad confusing because, in fact, you cannot encrypt the password itself. Instead, by setting up "password encryption" you are creating a password AND encrypting the contents of the file. In our example (see instructions below), the contents of the user's PDF document are not only password protected, but also encrypted. It is a process during which the content one wishes to keep secret is altered to make it unrecognizable. For example, if it is a text document, letters of each word might be shuffled with additional characters so the words would no longer make any sense. The reverse process is only available if the person who wants to decrypt this data can provide a specific decryption key or a password. In other words, even if the password is removed no one could read the hidden content as it still would need to be decrypted. Of course, it is important to realize you might be unable to retrieve it too if you lose the decryption key, aka, the password.



PLS MARK ME AS BRAINLIEST.

3 0
2 years ago
You '' friend or ''like'' a page o your favorite social media page that advertises a
Naddik [55]

Answer:

The correct answer for the given question is " yes".

Explanation:

In the above question the correct answer is yes because, in any social media site. If we like any web page.it will shows the name of person that like the web  pages .

For example: if we login in any social side  we will see various images,video and story etc.if any  user like all.  it will show the person name that is liked by them.

So the correct answer for this question is yes.

5 0
3 years ago
Consider the following code segment.
Bingel [31]

Answer:

A.)

arr[0] = 10;

arr[1] = 10;

Explanation:

Given the array:

arr = {1,2,3,4,5}

To set the first two elements of array arr to 10.

Kindly note that ; index numbering if array elements starts from 0

First element of the array has an index of 0

2nd element of the array has an index of 1 and so on.

Array elements can be called one at a time using the array name followed by the index number of the array enclosed in square brackets.

arr[0] = 10 (this assigns a value of 10 to the index value, which replace 1

arr[1] = 10 (assigns a value of 10 to the 2nd value in arr, which replaces 2

3 0
3 years ago
Programs which were typically reserved for college-level classes such as computer animation and CAD programs are now being appli
Irina-Kira [14]
Answer: I think C


Step by step explanation:
8 0
3 years ago
Circle class
NISA [10]

Answer:

What was the actual the question? I am confused.

Explanation:

4 0
3 years ago
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