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True [87]
1 year ago
8

A multiprocessor with 10 processors has 36 attached tape drives. A number of jobs have been submitted to the system where each j

ob requires a maximum of 6 drives in order to complete execution. Assume that each job starts running with only 4 drives for a long period before requiring the other 2 drives for a short period toward the end of its operation. Also assume an endless supply of those jobs
Assume the scheduler in the operating system will not start a job unless there are 6
tape drives available. When a job is started, 6 drives are assigned immediately and
are not released until the job finishes.
1 What is the maximum number of jobs that can be in progress at once?
2 What is the maximum number of tape drives that may be left idle as a result of
this policy?
3 What is the minimum number of tape drives that may be left idle as a result of
this policy?
Computers and Technology
1 answer:
N76 [4]1 year ago
4 0

The maximum number of tape drivers that are required by each job in the multiprocessor is 6.

<h3>How to illustrate the information?</h3>

It is given that a job will be performed in parallel with 4 tape drivers and laterin series with remaining 2 tape drivers. The maximum number of jobs that cab be progress simultaneously will be:

= total number of tape drivers / number of tape drivers assigned for each job.

Maximum number of jobs that cab be progress simultaneously = 36 / 6 = 6

Each process run with 4 tape drivers parallel and remaining 2 tape drivers is used at the last. Therefore, most of the time the 4 tape drivers are used and the remaining 2 tape drivers is left idle.

The maximum number of tape drivers kept idle = last tape drive in each of the processes running.

There are 6 processes running so, the maximum number of processes left idle is 6.

When each process makes use of all the tape drivers, and then there will not be any idle state for the tape drivers. Therefore, the minimum number of tape drivers kept idle is 0.

Learn more about multiprocessor on:

brainly.com/question/20316947

#SPJ1

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Answer:

Explanation:

try

clc

clear

close all

x=linspace(0,2*pi,7);

z=cos(pi.*x./3)

% the output on mine is to 4 decimals so it looks a bit different than what the output on your example is , but, I think if you change the format to decimal 2 it will look the same  :)

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3 years ago
A data structure used to bind an authenticated individual to a public key is the definition of ________.
patriot [66]

Answer:

Digital Certificate is the correct answer of this question.

Explanation:

Digital certificates are always for encryption and identification for transmitting public keys.The concept of digital certificate is a data structure used for linking an authenticated person to a public key. It is used to cryptographically attach public key rights to the organization that controls it.

<u>For example</u>:- Verisign, Entrust, etc.

  • An appendix to an electronic document that is used for authentication purposes.
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3 years ago
A company asked you help mitigate the brute force attacks carried out against its users' Windows account passwords. You successf
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a. Require user account passwords

e. Set failed logon restrictions

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Explanation:

3 0
3 years ago
Use the variables k, d, and s so that they can read three different values from standard input--an integer, a double, and a stri
Nat2105 [25]

Answer:

The c++ program to implement the given scenario is shown below.

#include <iostream>

using namespace std;

int main() {

   // variables declared as mentioned

   int k;

   double d;

   string s;

   cout << " Enter an integer value, a double value, a string value in the mentioned order " << endl;

   cin >> k >> d >> s;

   // variables printed in reverse order

   cout << " Reverse order " << endl;

   cout << s << " " << d << " " << k << endl;

   // variables printed in original order

   cout << " Original order " << endl;

   cout << k << " " << d << " " << s << endl;

   return 0;

}

OUTPUT

Enter an integer value, a double value, a string value in the mentioned order  

12 45.67 brainly

Reverse order  

brainly 45.67 12

Original order  

12 45.67 brainly

Explanation:

1. All the variables are declared as mentioned in the question.

int k;

   double d;

   string s;

2. The user is prompted to enter values for integer, double and string variables respectively. The input is accepted in the order mentioned above.

cin >> k >> d >> s;

3. The input is accepted in a single line since this is mentioned in the scenario that variables should be printed in the order in which they are read.

4. These variables are displayed to the standard output in reverse order – string, double, integer. The variables are displayed with exactly one space in between them.

cout << s << " " << d << " " << k << endl;

5. Then, variables are displayed in the original order – integer, double, string. The variables are displayed with exactly one space in between them.

cout << k << " " << d << " " << s << endl;

7 0
3 years ago
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guajiro [1.7K]

Answer:

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2. C) User Agent Style

Explanation:

1. Alex will use Embedded style to create styles that apply only to the HTML document that the style was created. With Embedded styling; the rules can be embedded into the HTML document using the <style> element.

2. Since Alex has forgotten to give any style for all of his pages, the style that will be applied to his pages is User Agent Style. User Agent Style is the default style of a browser. The browser has a basic style sheet that gives a default style to any document and this style is called User Agent.

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