Five batch jobs, A through E, arrive at a computer center at essentially the same time. They have an estimated running time of 15, 9, 3, 6, and 12 minutes, respectively. Their externally defined priorities are 6, 3, 7, 9, and 4, respectively, with a lower value corresponding to a higher priority. For each of the following scheduling algorithms, determine the turnaround time for each process and the average turnaround time for all jobs. Ignore process switching overhead. Explain how you found your answers. In the last three cases, assume only one job at a time runs until it finishes. (40 points) • Round robin with a time quantum of 1 minute Priority scheduling • FCFS (run in order 15, 9, 3, 6, 12) • Shortest job first
Answers
In the given scenario, we have five batch jobs A through E with different estimated running times and priority values. We need to simulate the execution of these jobs using different scheduling algorithms and compute their turnaround time and average turnaround time.
In Round Robin Scheduling with a time quantum of 1 minute, we execute jobs in round-robin fashion for a fixed time quantum of 1 minute until all jobs are completed. We keep track of each job's waiting time and turnaround time. Using this algorithm, job C, with shorter estimated running time and higher priority, completes first. However, due to the time quantum constraint, some jobs may not complete in their first cycle and require additional cycles to finish, leading to increased waiting time. The average turnaround time of all jobs using Round Robin is 24 minutes.
In Priority Scheduling, we execute jobs based on their priority values. Jobs with lower priority values get executed first, followed by jobs with higher priority values. If two jobs have the same priority, First Come First Serve (FCFS) scheduling applies. Using this algorithm, job C with the highest priority value completes first, followed by jobs E, B, A, and D. The average turnaround time of all jobs using priority scheduling is 25.2 minutes.
In FCFS scheduling, we execute jobs in the order of their arrival times. Using this algorithm, job A completes first, followed by jobs B, C, D, and E. This approach does not consider the priority levels of jobs. Therefore, jobs with higher priority values may need to wait longer than those with lower priority values. The average turnaround time of all jobs using FCFS is 28.8 minutes.
In Shortest Job First scheduling, we execute jobs based on their estimated running time. Jobs with shorter running times get executed first. Using this algorithm, job C with the shortest estimated running time completes first, followed by jobs D, B, E, and A. This approach considers the execution time required for each job, leading to lower turnaround times for shorter jobs. The average turnaround time of all jobs using Shortest Job First scheduling is 15.4 minutes.
In summary, employing different scheduling algorithms leads to different turnaround time and average turnaround time values. Round Robin and Priority Scheduling algorithms consider the priority levels of jobs, while FCFS scheduling prioritizes the order of arrival times. Shortest Job First scheduling focuses on the estimated running time of jobs, leading to lower turnaround times for shorter jobs.
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Related Questions
Consider a buddy system in which a particular block under the current allocation has an address of 011011110000. a. If the block is of size 4, what is the binary address of its buddy
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The binary address of the buddy block can be determined based on the address of the current block and the block size. In this case, the current block has an address of 011011110000 and a size of 4.
To find the binary address of its buddy block, we need to flip the value of the rightmost bit that represents the block size.
The binary address of the buddy block is obtained by toggling the rightmost bit of the current block's address. In this case, since the block size is 4 (2^2), the rightmost bit that represents the block size is the third bit from the right. Therefore, we need to flip this bit to find the binary address of the buddy block.
By toggling the third bit of the current block's address (011011110000), we get the binary address of its buddy block as 011011110100.
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Need help ASAP
Thankss + BRAINLIST only for correct answers
Answers
For entertainment, purely for the user to enjoy the content that has been produced for them.
Why was it made?
Netflix is a subscription based service that has been made to allow users to stream TV shows and other entertainment sources. It was made for leisure.
Caroline is building an expert system for wartime defense. Which of these is true about the system she is building?
A. The expert system can demonstrate an attack to test the defense mechanism.
B. The expert system can make autonomous decisions with no human intervention.
C. The expert system can rebuild its knowledge base based on new defense technology.
D. The expert system can diagnose a new threat with any existing information.
Answers
Answer:
The true statement about the system she is building is;
B. The expert system can make autonomous decisions with no human intervention
Explanation:
A computer program known as an expert system is a system that emulates the human or organizational, decision making, judgement and behavior that has gained the knowledge and experience of an expert by analyzing information categories using if then rules of artificial intelligence technologies and not procedural code
Therefore, an expert system of wartime defense can make decisions on its own without the input of a human administrator
The name of the program for the prevention early detection and treatment of conditions of children receiving welfare is known as:_________
Answers
The name of the program for the prevention early detection and treatment of conditions of children receiving welfare is known as "Early and Periodic Screening, Diagnosis, and Treatment."
What is Diagnosis?The process of identifying the sickness or condition that accounts for a person's symptoms and indicators is known as medical diagnosis. It is most frequently referred to as a diagnostic, with the implied medical context.
What is diagnosis and types?Sub-types of diagnoses include: Clinical diagnosis. A diagnosis made on the basis of medical signs and reported symptoms, rather than diagnostic tests. Laboratory diagnosis. A diagnosis based significantly on laboratory reports or test results, rather than the physical examination of the patient.
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Use logic gates to make the output
Answers
To get output B, either connect input B directly to output B, or use an OR gate where you connect one input to GND, because B OR 0 = B. To get C|D, connect C and D to inputs of an OR gate, and connect the output to C|D.
What is Gate?Gate in engineering is a device used to control and regulate the flow of electricity, liquids, gases, or particles. It is used to ensure that the desired flow of current, liquid, gas or particles is maintained safely and efficiently.
It's not possible to do it with the given gates only. If all four inputs were 0, you wouldn't be able to get a 1 from any combination of AND gates. You have to incorporate NOR gates.
Therefore, To get C|D, connect C and D to inputs of an OR gate, and connect the output to C|D.
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#5 Multiple Select Which of the following describes a hardware error? Select 3 options.
a. Nothing happens when you press the spacebar on your keyboard, but the other keys are working.
b. The mouse pointer on-screen only moves horizontally, not vertically.
c. Every time you try to run your new game, it crashes after displaying the opening screen.
d. After a recent Windows update, you can no longer access the internet on your laptop.
e. Nothing happens when you press the power button on your desktop PC.
Answers
Answer:
A, E
Explanation:
Hope this is correct
Answer:
B,C,D
Explanation:
is wireless or wired network faster??
Answers
Answer:
Wired
Explanation:
Answer:
Wired!
Explanation:
According to askleo.com, wired connections are almost always faster than wireless! This is of course not talking about wired connections that are old, outdated, in a bad environment, and/or ruined.
Hope this helps! :]
Which symbol is at the beginning and end of a multiline comment block? &&& """ %%% ###
Answers
Answer:
#
Explanation:
I have notes on it we learned it in 8th
###
the other guy was correct.
Which code is easier to learn, Python or C++. And which one is better than the other in your opinion
Answers
on the qtr 1 worksheet, add a row to the table that automatically calculates total entries
Answers
a network designer is considering whether to implement a switch block on the company network. what is the primary advantage of deploying a switch block?
Answers
This programme protects against the failure of just one network device on the network. A switch block failure won't affect every end user. The new Catalyst switches all come with this security feature.
Figure 3-3 shows how VLANs allow switches to generate several broadcast domains within a switched environment. You'll see that all users in a certain group—in this case, a department—are now identified as belonging to the same VLAN. Main variations: Cost - For supplying high-speed inter-VLAN routing, a Layer 3 switch is substantially more cost-effective than a router. In general, high performance routers cost substantially more than Layer 3 switches. Layer 3 switches have a higher port density than routers, which have fewer ports per square inch.
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if you want to restart page numbering partway through your document, what do you need to do first?
Answers
Answer:
Place the insertion point at the top of the page you want to restart page numbering for. ...
Select the Layout tab, then click the Breaks command. Select Next Page from the drop-down menu that appears.
A section break will be added to the document.
Double-click the header or footer containing the page number you want to restart.
Click the Page Number command. In the menu that appears, select Format Page Numbers.
A dialog box will appear. Click the Start at: button. By default, it will start at 1. If you want, you can change the number. When you're done, click OK.
The page numbering will restart.
Explanation:
Which of these are correctly formatted Python tuples? CHECK ALL THAT APPY.
A. tup1=(‘computer science’, ‘math’, ‘psychology’)
B. list1=[“final”, “complete”, “finish”]
C. tup2=“Programming 101”, “Intro to Python”
D. tup3=[“MacBook”, “Dell”, “IBM”]
E. tup4=(‘laptop’, ‘computer’, ‘hard drive’)
Answers
Answer:
It’s A C E
Explanation:
Discuss the Autonomous Robots and Additive Manufacturing contribution to Smart Systems. Why are these two technologies are important for the Smart Systems? Explain the technologies with an example.
Answers
Additive manufacturing, also known as 3D printing, revolutionizes traditional manufacturing methods by constructing objects layer by layer. It enables rapid prototyping, customization, and on-demand production. For instance, in a smart healthcare system, additive manufacturing can be employed to produce personalized medical implants, such as customized prosthetics or dental implants, based on patient-specific requirements, resulting in improved patient outcomes and reduced lead times. Both technologies contribute to the advancement of Smart Systems by optimizing processes, enhancing productivity, and enabling customization in various industries.
How many bit patterns can be represented by 3 bits?
Answers
Answer:
6312
Explanation: dffe
X466: Sorting - Fix Selection Sort The following method is a Selection Sort method. Within the method, there is an error on one line. You job is to find that line and fix that one error so that the method may work properly. You will need to understand exactly how a selection sort method works. Examples: selectionSort({4,7,1}) -> {1,4,7} selection Sort({80,6,6,8,2}) -> {2,6,6,8,80) Your Answer: Feedback 0.0 / 1.0 public int[] selectionSort(int[] array) { for (int i = 0; i < array.length - 1; i++) { int min = array[i]; int minIndex = i; for (int j = i + 1; j < array.length; j++) { if (min > array[i]) { min = array[i]; minIndex :); Your answer could not be processed because it contains errors: Line 14: error:';' expected 10 11 12 13 14 15 16 17) 18 } if (minIndex == i) { array[minIndex] = array[i]; array[i] = min; } return array:
Answers
The error in the given code is that there is a colon ":" instead of a semicolon ";" at the end of the line "minIndex = i". This is causing a syntax error in the code.
The corrected code is:
public int[] selectionSort(int[] array) {
for (int i = 0; i < array.length - 1; i++) {
int min = array[i];
int minIndex = i;
for (int j = i + 1; j < array.length; j++) {
if (min > array[j]) {
min = array[j];
minIndex = j;
}
}
if (minIndex != i) {
array[minIndex] = array[i];
array[i] = min;
}
}
return array;
}
This code should now properly sort the given array using the Selection Sort method.
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Which of these graphic elements combine text, illustrations, and color? Word Art Smart Art Clip Art none of the above
Answers
Answer:
I believe it's Word Art
Explanation:
Justify the following statement: " Diversity should exist in the workplace."
Answers
Answer:
Explanation:
Diversity should exist in the workplace because if everyone working together had the exact same views, there wouldn't be any growth and learning of new ways to expand ideas.Answer:
Diversity should exist in the workplace because if everyone working together had the exact same views, there wouldn't be any growth and learning of new ways to expand ideas.
Explanation:
e d g e
How does the team know what to work upon during the iteration? (1 correct answer)
1. The team participates in the iteration planning during which the Lead/Onsite coordinator/Facilitator decides who would work on that.
2. Based on the discussions during iteration planning, team members agree on what each would work on.
3. The Facilitator has regular interaction with the Product Owner. He/she guides the team on the tasks to be taken up.
4. Iteration plans are shared by Product Owner beforehand; any spill over from last iteration is taken up by default.
Answers
Answer:
2
Explanation:
In iteration, the entire team participates. A list of backlog and upcoming tasks is made and plan for the execution of these tasks is decided mutually.
does some one have a presentation for pc viruses
Answers
Answer:
yes. don't get one. they huant ur pc and make ads pop up consistantly.
Answer the crosswords for brainliest and 30
I really need help here get 30 points and brainliest
Answers
Answer:
6:width
Explanation:
what kind of crossword computer srry i did not mean take ur points I don't use them
How do I calculate this square footage?
Answers
Answer:
To calculate it, you have to break it apart. Sorry for the bad writing but after you break it apart, you multiply the smaller squares. Then with all of the smaller areas, add them together for the final answer which in this case is 456.
What will the following program display in the console?
for(var i = 0; i < 4; i++) {
console.log(i);
}
Answers
It will display the numbers 0 through 3, each on a separate console line.
The program display 0,1,2,3 in the console. The correct option is A.
What is console?One definition of a system console is a text entry and display device for system administration messages, particularly those from the BIOS or boot loader, the kernel, the init system, and the system logger. Other definitions of console include the operator's console, root console, and computer console.
The associated keyboard and display on modern compact computers serve as the console. The console on many older computers connects via RS-232 to a terminal, like a DEC VT100.
The operators of the minicomputer are constantly watching this terminal, which is in a locked room. In the console, the software displays 0, 1, 2, and 3.
Thus, the correct option is A.
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What will the following program display in the console?
for(var i = 0; i < 4; i++) {
console.log(i);
}
0,1,2,3
0,1,2,3,4
1,2,3
1,2,3,4
What is a software routine that collects information about the devices operation?
Answers
Network management agent is a software routine that collects information about a device’s operations.
Network management is a process that monitors, configures, and manages network performance. As network complexity grows its ability to operate effectively depends upon the quality of network management. A network management agent is software that collects information from the network, network devices like routers and switches can also be used to access information.
Some benefits of effective network management include network visibility, performance optimization, and downtime detection. Network management is very important to ensure service delivery, reliability, and overall performance.
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Computer science student Jones has been assigned a project on how to set up sniffer. What must he keep in mind as part of the process
Answers
Setting up a sniffer requires certain considerations to be taken into account, such as ensuring that the sniffer is being used legally, selecting the appropriate hardware and software for the task, and configuring the sniffer correctly to capture and analyze network traffic.
The use of a sniffer or packet analyzer can be subject to legal restrictions and ethical considerations, as capturing and analyzing network traffic may violate privacy laws or ethical norms. As such, Jones needs to ensure that the use of the sniffer is authorized and that he is aware of any legal or ethical considerations that may apply.
When selecting hardware and software for the sniffer, Jones should consider factors such as the intended use of the sniffer, the complexity of the network, and the level of analysis required. Different sniffer tools may be better suited for different tasks, such as capturing traffic on wired or wireless networks, analyzing specific protocols, or detecting security threats.
Once the hardware and software have been selected, Jones needs to configure the sniffer correctly to ensure that it is capturing the desired traffic and providing accurate results. This may involve setting filters to capture specific types of traffic, configuring the interface to ensure that packets are being captured properly, and adjusting the settings to optimize the performance of the sniffer.
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Not a question, but am I the only one who keeps seeing those people who say "The answer is linked here"? I feel like its some sort of way people are trying to hack you or something, if anyone knows what's up with that please tell me.. Its getting annoying.
Answers
Different between user define function and built in function? please help me
Answers
A user-defined function is a function that is defined by the user at the time when the program is written, as opposed to a built-in function, which is already defined by the programming language.
What is function?
Simply put, a function is a "chunk" of code that you can reuse repeatedly rather than having to write it out several times. Programmers can divide a problem into smaller, more manageable chunks, each of which can carry out a specific task, using functions. The specifics of how a function operates can almost be forgotten once it has been created. By abstracting the specifics, the programmer can concentrate on the big picture. Once a function has been defined, a programmer can use its name to call it whenever they need it. The function also likely needs some inputs or parameters to operate, which are passed to the function each time it really is called.
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Date Detection Write a regular expression that can detect dates in the DD/MM/YYYY format. Assume that the days range from 01 to 31 , the months range from 01 to 12 , and the years range from 1000 to 2999. Note that if the day or month is a single digit, it'll have a leading zero. The regular expression doesn't have to detect correct days for each month or for leap years; it will accept nonexistent dates like 31/02/2020 or 31/04/2021. Then store these strings into variables named month, day, and year, and write additional code that can detect if it is a valid date. April, June, September, and November have 30 days, February has 28 days, and the rest of the months have 31 days. February has 29 days in leap years. Leap years are every year evenly divisible by 4 , except for years evenly divisible by 100 , unless the year is also evenly divisible by 400. Note how this calculation makes it impossible to make a reasonably sized regular expression that can detect a valid date
Answers
Answer:
Attached is your code, written in Python.
most mobile devices can track your location unless you turn off the so-called _____ services.
Answers
Mobile devices can track your location using built-in GPS and other technologies like Wi-Fi and Bluetooth through the so-called location services.
Location services provide valuable features, such as navigation, weather updates, and targeted advertising. However, privacy concerns arise when these services are enabled, as they can reveal your whereabouts to third parties
. To maintain your privacy, you can disable location services in your device's settings. By doing so, you prevent apps and websites from accessing your real-time location data.
Keep in mind, though, that turning off location services may limit the functionality of certain apps that rely on your location information.
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Write a report on the effectiveness of using thicker bags. Remember to include the effect on the environment and the economy in your report
Answers
The effectiveness of using thicker bags are:
It has the lowest environmental impact in terms of any other disposable bag. It can be used three to six more times.It is environmentally sustainable.What is the effect of thicker plastic bags have on the environment?The use of plastic bags is known to have some form of detrimental effects on the such as animal choking, pollution, and others.
Conclusively, Note that thicker bags needs a lot of plastic to be able to produce it and it goes to waste even if a person do not use it again.
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