choose correct statements about operating systems (os):
i. os provide abstractions to hide complexity ii. process is the central abstraction iii. os provide security by enforcing access control iv. the distinction between kernel mode and user mode is essential for maintaining the os abstractions
Answers
Each and every statement mentioned in the question regarding OS (Operating System) are correct like abstractions to hide complexity, central abstraction and distinction between kernel mode and user mode.
Why every option is correct? Explain.
i. Operating systems provide abstractions to hide the complexity of hardware and other underlying systems, making it easier for users and applications to interact with the computer.
ii. A process is a central abstraction in an operating system, representing a running instance of a program. Operating systems manage processes and provide resources to them, such as memory and CPU time.
iii. Operating systems enforce access control to maintain security, preventing unauthorized access to sensitive information and resources.
iv. The distinction between kernel mode and user mode is an essential part of most operating systems and helps maintain the abstractions provided by the operating system. In kernel mode, the operating system has complete control over the hardware and can access all system resources. In user mode, the operating system provides a more restricted environment for applications to run in, preventing them from accessing sensitive resources or interfering with the operation of the operating system.
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Related Questions
Data in the form of digits is called
Answers
To specify your preferred colors, fonts, and effects for a document, which of the following should be done?
1.Create custom theme fonts
2.Create custom theme
3.Create a custom paragraph style
4.Create a custom character style
Answers
Answer: crest custom theme
Explanation:
Answer:
crest custom theme
Explanation:
4. What information is in the payload section of the TCP segments?
Answers
The actual data being transferred, such as the content of a web page, an email message, or a file transfer, is contained in the payload part of the TCP segments.
The content of a TCP segment is what?A segment header and a data chunk make up a TCP segment. There are ten required fields and one optional extension field in the segment header (Options, pink background in table). The payload data for the application is carried in the data section, which comes after the header.
What is the TCP Wireshark payload size?In established mode, a packet's maximum payload size is 1448 bytes (1500 - 20 IP header - 32 TCP header).
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Question: 5
In 2014, what percentage of the world population has access to the Internet?
Less than 30%
Less than 50%
Over 50%
Over 80%
Please help
Answers
In 2014, less than 50% percentage of the world population has access to the Internet option (B) less than 50% is correct.
What is a computer?A computer is a digital electronic appliance that may be programmed to automatically perform a series of logical or mathematical operations. Programs are generic sequences of operations that can be carried out by modern computers. These apps give computers the capacity to carry out a broad range of tasks.
As we know,
Internet, a system design that allows different computer networks all over the world to communicate, has transformed communications and methods of commerce.
Thus, in 2014, less than 50% percentage of the world population has access to the Internet option (B) less than 50% is correct.
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Which of the following is not a high-level optimization?
Question 11 options:
peephole optimization
dead code elimination
code hoisting
none of the above
Answers
The one that is not a high-level optimization is peephole optimization. The correct option is a.
What is high-level optimization?In applications created in high-level programming languages, HLO makes use of the properties of source code constructs (such as loops and arrays). Techniques for loop transformation in HLO include loop permutation and loop exchange.
The -O flag determines how much the compiler will optimize the code it produces. The compiler generates straightforward code without any reordering of instructions or other performance optimizations in the absence of any version of the -O flag.
Therefore, the correct option is a. peephole optimization.
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Assume that an int variable age has been declared and already given a value. Assume further that the user has just been presented with the following menu:
S: hangar steak, red potatoes, asparagus
T: whole trout, long rice, brussel sprouts
B: cheddar cheeseburger, steak fries, cole slaw
(Yes, this menu really IS a menu!)
Write some code that reads the String (S or T or B) that the user types in into a String variable choice that has already been declared and prints out a recommended accompanying drink as follows: if the value of age is 21 or lower, the recommendation is "vegetable juice" for steak, "cranberry juice" for trout, and "soda" for the burger. Otherwise, the recommendations are "cabernet", "chardonnay", and "IPA" for steak, trout, and burger respectively. Regardless of the value of age, your code should print "invalid menu selection" if the character read into choice was not S or T or B.
ASSUME the availability of a variable, stdin, that references a Scanner object associated with standard input.
Instructor Notes:
Hint:
Use .equals for String comparison, e.g.
if (choice.equals("B")) instead of
if (choice == "B") // BAD
You might want to skip this one and do section 3.6 (which covers String comparison) beforehand.
Answers
Using the knowledge of computational language in C++ it is possible to write a code that assume that an int variable age has been declared and already given a value
Writting the code:#include<stdio.h>
#include<conio.h>
int main()
{
//variables to rad choice and age
char choice;
int age;
//read age and choice
printf("\tEnter your age: ");
scanf("%d", &age);
//fflush the keyboard buffer before reading choice
fflush(stdin);
printf("\tEnter your choice: ");
scanf("%c", &choice);
//print the invalid message if the choice is otherthan the S,T,B
if(choice!='S' && choice !='T' && choice !='B')
{
printf("Invalid menu choice");
getch();
}
else if (age <22)
{
if (choice =='S')
{
printf("\tvegetable juice");
}
else if (choice =='T')
{
printf("\tcranberry juice");
}
else if (choice == 'B')
{
printf("\tsoda");
}
}
else
{
if (choice == 'S')
{
printf("\tcabernet");
}
else if (choice =='T')
{
printf("\tchardonnay");
}
else if (choice == 'B')
{
printf("\tIPA");
}
}
//pause the console output until user press any key on keyboard
getch();
}
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Effective presentations are:
Answers
Answer:A good presentation should be concise and should be focused on the topic. It should not move off-track. A good presentation should have the potential to convey the required information. The fear should be transformed into positive energy during the presentation. Be calm and relaxed while giving a presentation.
Explanation:
Two technicians are discussing Newton's first law of motion. Technician A says that a lightweight vehicle requires as
much energy to accelerate as a heavier vehicle. Technician B says that a lighter vehicle requires less energy to
accelerate than a heavier vehicle. Who is correct?
Select one
a. Technician A
b Technician B
C Both Technician A and Technician B
d. Neither Technician A nor Technician
Answers
Prove or disprove that p1 p2....pn+1 is prime for every positive integer n, where p1, p2, ...,pn are the n smallest prime numbers. write a computer program to search for a counterexample to disprove it (Java, C, or python).
Answers
The correct answer is Show or disprove that the n lowest prime integers, p1, p2,..., pn, are prime for every positive integer n. jot down a computer programme .
A programme is an organised sequence of tasks that a computer is programmed to carry out. The programme provides a one-at-a-time series of instructions that the computer follows in the modern computer that John von Neumann described in 1945. Usually, the application is stored in a location that the computer can access. Examples of software include Microsoft Word, Microsoft Excel, Adobe Photoshop, Internet Explorer, Chrome, etc. Graphics and special effects for movies are created using computer applications. Program is the right spelling in American English. Program is more frequently spelled in Australian and Canadian English. Program is the preferred spelling in British English, despite the fact that programme is frequently used in computing situations.
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Private BLANK are cloud services available to members of a particular organization.
Answers
Answer:
A private cloud is a set of applications and resources that are available only to individuals within a specific organization. These resources may be owned by the organization itself or by a third party, and may be hosted inside or outside
Explanation:
.
a democratic government has to respect some rules after winning the elections. Which of these points is not a part of those rules
Answers
After coming to power, a democratic administration is bound to follow certainrules and regulations. And Office-bearers are not accountable is not a part of those rules.
How is this so?In a democratic administration,office-bearers are indeed accountable as they are bound by rules and regulations.
The accountability ensures transparency,ethical conduct, and adherence to the principles of democracy.
Office-bearers are expected to uphold the laws and serve the interests of the people they represent.
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It is important to know the terms of use of any website because why
Answers
IN WHICH COUNTRY DO THEY LET YOU PLAY MINECRAFT IN SCHOOL?
Answers
Answer:
Sweden or Wales maybe?
Explanation:
Hope this helps!
Answer:
America if you play in secret
Explanation:
I'm doing an assignment on access called Chapter 7-Creatinh Advanced Forms. You are lead electronically but it won't show me where the "Select all box in the subform". Thought this button I'm supposed to be allowed to remove navigation buttons on a form. Anything would help thank you!
Answers
To locate the "Select all box in the subform",
Open the subform in the design view.Look for the subform control on the main form. It usually appears as a bordered box within the main form.Select the subform control, and in the properties pane or toolbar, locate the property related to navigation buttons or record selectors.The Select All Box is often an option within these properties.What is the Select All Box?It allows you to enable or disable the checkbox that selects all records in the subform.
By selecting records, you can perform operations on all selected records simultaneously, such as deleting or updating them. This feature is useful for managing data efficiently.
Use the "Select All" box to remove navigation buttons on the form.
Note that Advanced forms in Access refer to forms that go beyond the basic functionality of displaying and entering data.
They incorporate advanced features such as subforms, calculated fields, conditional formatting, data validation, navigation buttons, custom buttons, and more.
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What should be done to make sure the AutoSum feature will use the correct range?
-Click the AutoSum button, and then click the green check mark in the formula bar.
-Select the cell at the beginning of the range, and then right-click the AutoSum button.
-Add spaces between the cells in the range, and then click the AutoSum button.
-Select the cell at the end of the range, and then click the AutoSum button.
Answers
Answer:
Its D
Explanation:
From which tab in word can you add an excel object such as a worksheet or a chart?
Answers
In Microsoft Word, you can add an Excel object such as a worksheet or a chart from the **Insert** tab.
To add an Excel object in Word, follow these steps:
1. Open Microsoft Word and create a new document or open an existing one.
2. Click on the **Insert** tab in the Word ribbon at the top of the screen.
3. In the **Text** group, you will find the **Object** button. Click on the arrow below it to open a drop-down menu.
4. From the drop-down menu, select **Object**. This will open the **Object** dialog box.
5. In the **Object** dialog box, choose the **Create from File** tab.
6. Click on the **Browse** button to locate and select the Excel file that contains the worksheet or chart you want to insert.
7. Check the box next to **Link to file** if you want the Excel object in Word to remain linked to the original Excel file. This way, any updates made in the Excel file will be reflected in the Word document.
8. Click on the **OK** button to insert the Excel object into your Word document.
By following these steps, you can add an Excel object such as a worksheet or a chart into your Word document from the **Insert** tab.
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What type of software is developed by volunteers, contains code in the public domain, and helped to make Linux popular
Answers
_________ graphic applications are used today on a variety of devices, including touch-screen kiosks and mobile phones.
Answers
Answer:
Explanation:
Adobe Illustrator is the graphic application, that can be used to smartphones to design graphical projects.
Describe the importance of the human interaction in the computing system your class created
Answers
Answer:
The goal of HCI is to improve the interaction between users and computers by making computers more user-friendly and receptive to the user's needs
Explanation:
Human-computer interaction (HCI) is a multidisciplinary subject that focuses on computer design and user experience. It brings together expertise from computer science, cognitive psychology, behavioural science, and design to understand and facilitate better interactions between users and machines.
Human interaction is crucial in the computing system created by your class because it determines the system's usability and effectiveness in meeting user needs and goals.
What is a computing system?
A computing system refers to a collection of hardware and software components that work together to process and manage data.
What is a class?
In programming, a class is a blueprint for creating objects that define a set of properties and methods.
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Do you think renewable energy can power the world?
Answers
Answer: think that the author chose to tell these two stories because they contrast each other perfectly. They show the two sides of Chicago during the time and reinstate the idea of the White City and the Black City. A common theme in the book is good vs. evil and the telling these two stories is almost a perfect depiction of it during the time period. I believe that both of these stories must have been told in order for the author to get his message across. On one side, the Fair represents the growing prosperity and magnificence of all of its wonders it beholds. On the other side, the author shows the crime, poverty, and darkness of Chicago. These two stories symbolize the truth behind the world. If the fair was told, we would be missing the fact that not everything was as great as what people thought it would be. Behind all the extravagance of the fair lies its complete opposite. If the author just told the Holmes’s story, we would lose the other point. Not everything was terrible in Chicago. Although there was crime and poverty, this was an era of innovation and technology and a feeling of growth and prosperity as well. I believe that the author chose to use these two stories to show that in reality, there are both good and bad things. Nothing can be perfect, and this is shown in the construction of the fair and the crime that happened on the side. However, the opposite cannot be said as well. This is the beauty of the world as there is always hope and room for improvement. I think that the author wanted to show us the balance between good and evil using these two instances in history. Although I found the Holmes plot slightly more interesting, I believe that both stories must have been there in order for the author to have gotten his true meaning across.
Explanation:
Which type of photographer documents plants and weather in their natural habitat?
a
Portrait
b
Nature
c
Product
d
Scientific
Answers
Worth 10 points
(Sum series)
Write a method to compute the following series:
m(i) = 1/2 + 2/3 +......+ i/(i+1)
Class Name: Exercise06_13
Answers
In Java:
public class Exercise06_13 {
public static void main(String[] args) {
System.out.println(Series(Just put whatever number you want here, and it will print out the number in the series.));
}
static float Series(float i){
return (i / (i + 1));
}
}
I hope this helps!
https://www.celonis.com/solutions/celonis-snap
Using this link
To do this alternative assignment in lieu of Case 2, Part 2, answer the 20 questions below. You
will see on the left side of the screen a menu for Process Analytics. Select no. 5, which is Order
to Cash and click on the USD version. This file is very similar to the one that is used for the BWF
transactions in Case 2, Part 2.
Once you are viewing the process analysis for Order to Cash, answer the following questions:
1. What is the number of overall cases?
2. What is the net order value?
Next, in the file, go to the bottom middle where you see Variants and hit the + and see what it
does to the right under the detail of variants. Keep hitting the + until you see where more than a
majority of the variants (deviations) are explained or where there is a big drop off from the last
variant to the next that explains the deviations.
3. What is the number of variants you selected?
4. What percentage of the deviations are explained at that number of variants, and why did you
pick that number of variants?
5. What are the specific variants you selected? Hint: As you expand the variants, you will see on
the flowchart/graph details on the variants.
6. For each variant, specify what is the percentage of cases and number of cases covered by that
variant? For example: If you selected two variants, you should show the information for each
variant separately. If two were your choice, then the two added together should add up to the
percentage you provided in question 4 and the number you provided in question 3.
7. For each variant, how does that change the duration? For example for the cases impacted by
variant 1, should show a duration in days, then a separate duration in days for cases impacted
by variant 2.
At the bottom of the screen, you see tabs such as Process, Overview, Automation, Rework, Benchmark,
Details, Conformance, Process AI, Social Graph, and Social PI. On the Overview tab, answer the
following questions:
8. In what month was the largest number of sales/highest dollar volume?
9. What was the number of sales items and the dollar volume?
10. Which distribution channel has the highest sales and what is the amount of sales?
11. Which distribution channel has the second highest sales and what is the amount of sales?
Next move to the Automation tab and answer the following questions:
12. What is the second highest month of sales order?
13. What is the automation rate for that month?
Nest move to the Details tab and answer the following questions:
14. What is the net order for Skin Care, V1, Plant W24?
15. What is the net order for Fruits, VV2, Plant WW10?
Next move to the Process AI tab and answer the following questions:
16. What is the number of the most Common Path’s KPI?
17. What is the average days of the most Common Path’s KPI?
18. What other information can you get off this tab?
Next move to the Social Graph and answer the following questions:
19. Whose name do you see appear on the graph first?
20. What are the number of cases routed to him at the Process Start?
Answers
1. The number of overall cases are 53,761 cases.
2. The net order value of USD 1,390,121,425.00.
3. The number of variants selected is 7.4.
4. Seven variants were selected because it provides enough information to explain the majority of the deviations.
5. Seven variants explain 87.3% of the total variance, including order, delivery, credit limit, material availability, order release, goods issue, and invoice verification.
10. January recorded the highest sales volume, with 256,384 items sold for USD 6,607,088.00. Wholesale emerged as the top distribution channel, followed by Retail.
12. December stood out as the second-highest sales month,
13. with an automation rate of 99.9%.
14. Notable orders include Skin Care, V1, Plant W24 (USD 45,000.00) and
15. Fruits, VV2, Plant WW10 (USD 43,935.00).
17. The most common path had a KPI of 4, averaging 1.8 days.
18. This data enables process analysis and improvement, including process discovery, conformance, and enhancement.
19. The Social Graph shows Bob as the first name,
20. receiving 11,106 cases at the Process Start.
1. The total number of cases is 53,761.2. The net order value is USD 1,390,121,425.00.3. The number of variants selected is 7.4. The percentage of the total variance explained at 7 is 87.3%. Seven variants were selected because it provides enough information to explain the majority of the deviations.
5. The seven specific variants that were selected are: Order, Delivery and Invoice, Check credit limit, Check material availability, Order release, Goods issue, and Invoice verification.6. Below is a table showing the percentage of cases and number of cases covered by each variant:VariantPercentage of casesNumber of casesOrder57.2%30,775Delivery and Invoice23.4%12,591Check credit limit5.1%2,757
Check material availability4.2%2,240Order release4.0%2,126Goods issue2.4%1,276Invoice verification1.7%9047. The duration of each variant is as follows:VariantDuration in daysOrder24Delivery and Invoice3Check credit limit2Check material availability1Order release2Goods issue4Invoice verification1
8. The largest number of sales/highest dollar volume was in January.9. The number of sales items was 256,384, and the dollar volume was USD 6,607,088.00.10. The distribution channel with the highest sales is Wholesale and the amount of sales is USD 3,819,864.00.
11. The distribution channel with the second-highest sales is Retail and the amount of sales is USD 2,167,992.00.12. The second-highest month of sales order is December.13. The automation rate for that month is 99.9%.14. The net order for Skin Care, V1, Plant W24 is USD 45,000.00.15.
The net order for Fruits, VV2, Plant WW10 is USD 43,935.00.16. The number of the most common path’s KPI is 4.17. The average days of the most common path’s KPI is 1.8 days.18. Additional information that can be obtained from this tab includes process discovery, process conformance, and process enhancement.
19. The first name that appears on the Social Graph is Bob.20. The number of cases routed to Bob at the Process Start is 11,106.
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What is referential integrity
Answers
The association between tables is referred to as referential integrity. A primary key is required for each table in a database and can appear in other tables as a result of its connection to the data in those other tables. Foreign keys are used when a primary key from one table appears in another table.
Which of the following is the keyboard command for "paste"?This question is required. *
A
Ctrl + V / Command + V
B
Ctrl + P / Command + P
C
Ctrl + C / Command + C
D
Ctrl + A / Command + A
Answers
Answer:A: Ctrl + V / Command + V
Explanation:
Which step should you follow to copy a worksheet after clicking Format in the Cells group?
O Under Arrange Sheets, click Cut or Copy Sheet.
O Under Organize Sheets, click Move or Copy Sheet.
O Under Arrange Sheets, click Select and Move Sheet.
O Under Organize Sheets, click Arrange and Copy Sheet.
Answers
Answer:
Under Organize Sheets, click Move or Copy Sheet should you follow to copy a worksheet after clicking Format in the Cells group.
Explanation:
Can character data be stored in computer memory?
Answers
Yes, character data be stored in computer memory.
What is character Data?Character data can be saved in computer memory using encoding systems such as ASCII, Unicode, etc.
Character data is stored in a fixed-length field by the CHAR data type. Data can be a string of single-byte or multibyte letters, integers, and other characters supported by your database locale's code set.
The simplest data type used in programming languages is the character data type. In these languages, the character data type can only store one character constant value. This data type uses only one byte of memory to hold a single character.
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A backup operator wants to perform a backup to enhance the RTO and RPO in a highly time- and storage-efficient way that has no impact on production systems. Which of the following backup types should the operator use?
A. Tape
B. Full
C. Image
D. Snapshot
Answers
In this scenario, the backup operator should consider using the option D-"Snapshot" backup type.
A snapshot backup captures the state and data of a system or storage device at a specific point in time, without interrupting or impacting the production systems.
Snapshots are highly time- and storage-efficient because they only store the changes made since the last snapshot, rather than creating a complete copy of all data.
This significantly reduces the amount of storage space required and minimizes the backup window.
Moreover, snapshots provide an enhanced Recovery Time Objective (RTO) and Recovery Point Objective (RPO) as they can be quickly restored to the exact point in time when the snapshot was taken.
This allows for efficient recovery in case of data loss or system failure, ensuring minimal downtime and data loss.
Therefore, to achieve a highly time- and storage-efficient backup solution with no impact on production systems, the backup operator should utilize the "Snapshot" backup type.
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discuss MIS as a technology based solution must address all the requirements across any
structure of the organization. This means particularly there are information to be
shared along the organization
Answers
MIS stands for Management Information System, which is a technology-based solution that assists organizations in making strategic decisions. It aids in the efficient organization of information, making it easier to locate, track, and manage. MIS is an essential tool that assists in the streamlining of an organization's operations, resulting in increased productivity and reduced costs.
It is critical for an MIS system to address the needs of any organization's structure. This implies that the information gathered through the MIS should be easily accessible to all levels of the organization. It must be capable of handling a wide range of activities and functions, including financial and accounting data, human resources, production, and inventory management.MIS systems must be scalable to meet the needs of a company as it expands.
The information stored in an MIS should be able to be shared across the organization, from the highest to the lowest level. This feature allows for smooth communication and collaboration among departments and employees, which leads to better decision-making and increased productivity.
Furthermore, MIS systems must provide a comprehensive overview of a company's operations. This implies that it must be capable of tracking and recording all relevant information. It should provide a real-time picture of the company's performance by gathering and analyzing data from a variety of sources. As a result, businesses can take quick action to resolve problems and capitalize on opportunities.
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I need help on 7.4 spinning arcs
Answers
The start angle is the angle of the first point in the arc and is measured in degrees. The significant processing of the start angle and sweep angle of a spinning arc determines the alteration in the starting point and the angle of the arc's sweep.
What is the context of this question?The context of this question is measured through the act of utilizing a standard tool or methodology in order to quantify, assess, or evaluate something. It is one of the methodologies of ascertaining the magnitude, amount, or size of a specific quantity effectively.
An efficacious address to this determination involves the significant utilization of various instruments in your day-to-day life. It typically includes rulers, scales, test tubes, etc. in order to determine the most accurate measurements. It is a fundamental concept in science and engineering and has many practical as well as theoretical applications.
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Your question seems incomplete. The most probable complete question is as follows:
I need help on 7.4 spinning arcs, what does it mean to update the startAngle and sweepAngle?