Answer: C. File encryption
Explanation: To ensure security and privacy of files and its content, encrypting the file may be an option. File encryption refers to a process of ensuring the security and privacy of individual files so as to prevent unauthorized access to the content. File encryption works by setting up a security key which will be requested or needed when the file is being clicked such that only users or individuals with the authorized pass code or password can open and read its content or modify the file, this is called file decryption.
Answer:
No you can not tell that recursion is ever required to solve a problem.
Recursion is required when in the problem, the solution of the input depends on the solution of the subsets of the input.
Iteration is also another form of repetitive approach we follow to solve that kind of problems.
But the difference between recursion and iteration is :
- In recursion we call the function repeatedly to return the result to next level.
- In iteration certain bunch of instructions in a loop are executed until certain conditions met.
Explanation:
For example in the Fibonacci sequence problem, to find
, we need to compute
and
before that.
- In case of recursion we just call the method Fibonacci(n) repeatedly only changing the parameter Fibonacci(n-1), that calculates the value and return it.
Fibonacci(n)
1. if(n==0 or n==1)
2. return 1.
3.else
4. return( Fibonacci(n-1)+Fibonacci(n-1) )
- But in case of iteration we run a loop for i=2 to n, within which we add the value of current
and
to find the value of 
Fibonacci(n)
1. if(n<=2)
2. result = 1
3. else
4. result1 =1 and result2=1.
5. { result = result1 +result2.
6. result1= result2.
7. result2 = result.
8. }
9. output result.
Pictures not loading on websites Chrome – Many users reported that pictures aren't loading on websites in Chrome. To fix the problem, be sure to check your Chrome settings and disable your antivirus. Images won't load in Chrome – Sometimes this issue can appear if JavaScript is disabled in your browser.
Explanation:
Speaking of image problems, users reported the following issues:
-
Broken image icon Firefox, Internet Explorer – According to users, you might be able to experience this issue in other browsers including Firefox and Internet Explorer. If the problem appears in other browsers, the issue is related to your system or to your network configuration.
- Pictures not loading on websites Chrome – Many users reported that pictures aren’t loading on websites in Chrome. To fix the problem, be sure to check your Chrome settings and disable your antivirus.
- Images won’t load in Chrome – Sometimes this issue can appear if JavaScript is disabled in your browser. If that’s the case, simply enable JavaScript and the problem will be resolved.
- Chrome showing broken images – In some cases, extensions can lead to this problem, and if you noticed that your images are missing, simply disable or uninstall your extensions and check if that solves the problem.
- You can remove an image from the preview by clicking the thumbnail below Available images. Edit Descriptions: If you've added multiple images, click the description below each image in the preview to edit it.
- Icon in the top-right corner of the window. Select Internet Options. In the Internet Options window, click the Advanced tab. In the Settings under Multimedia, make sure there is a check in the Show Pictures check box.
Answer:
See explanation below
Explanation:
Previos concepts
First Come First Serve (FCFS) "is an operating system scheduling algorithm that automatically executes queued requests and processes in order of their arrival".
Shortest job next (SJN), or the shortest job first (SJF) or shortest "is a scheduling policy that selects for execution the waiting process with the smallest execution time".
Shortest remaining time (SRF) "is a scheduling method that is a preemptive version of shortest job next scheduling'".
Round robin (RR) is an algorithm where the time parts "are assigned to each process in equal portions and in circular order, handling all processes without priority"
Solution for the problem
Assuming the dataset given on the plot attached.
Part a
For this algorithm the result would be:
Job A 0-6
Job B 6-(6+3) = 6-9
Job C 9-(9+1) = 9-10
Job D 10-(10+4) = 10-14
Part b
For this algorithm the result would be:
Job A 0-6
Job C 6-(6+1) = 6-7
Job B 7-(7+3) = 7-10
Job D 10-(10+4) = 10-14
Part c
For this algorithm the result would be:
Job A 0-1 until 14
Job B 2-(2+3) = 2-5
Job C 3-(3+2) = 3-5
Job D 9-(9+5) = 9-14
Part d
For this algorithm the result would be:
Job A 0-2 , 7-9, 12-14
Job B 2-4, 9-10
Job C 4-(4+1) = 4-5
Job D 5-7, 10-12