any protection mechanism must have the flexibility to allow several processes to access the same portion of main memory. question 15 options: true false

Answers

Answer 1

True.

In a multi-programming environment, where several processes are running simultaneously, it is necessary for protection mechanisms to have the flexibility to allow several processes to access the same portion of main memory. This is because the resources in a computer system, including memory, are limited, and it is not feasible to allocate separate portions of memory for each process.


1)To ensure that multiple processes can access the same portion of memory without interfering with each other, protection mechanisms such as access control lists, permissions, and virtual memory are implemented. These mechanisms allow processes to access the memory they require while preventing unauthorized access and ensuring that one process does not overwrite another's data.
2)Access control lists and permissions allow for fine-grained control over which processes can access specific portions of memory. Virtual memory, on the other hand, allows multiple processes to share the same physical memory by mapping virtual addresses to physical addresses. This enables the system to efficiently manage memory and allow multiple processes to access the same portion of memory without interfering with each other.
3)In summary, protection mechanisms in a multi-programming environment must have the flexibility to allow several processes to access the same portion of main memory, and this is achieved through the implementation of access control lists, permissions, and virtual memory.

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Related Questions

What is the difference between safety stock inventory and the cross docking method?

Answers

Answer:

Cycle stock inventory represents the quantity of inventory that a business can sell and replenish according to plan. It does not include safety stock which is held to maintain sales in times of sustained high demand. In comparison, safety stock is held to prevent stockouts that can become costly when they equate to lost sales and poor inventory management.

Hope this helps

Firewall implementation and design for an enterprise can be a daunting task. Choices made early in the design process can have broad security implications for years to come. Which firewall architecture is designed to host servers that offer public services?

Answers

Complete Question:

Firewall implementation and design for an enterprise can be a daunting task. Choices made early in the design process can have far-reaching security implications for years to come. Which of the following firewall architecture is designed to host servers that offer public services?

a) Bastion Host

b) Screened subnet

c) Screened host

d)  Screened

Answer:

b) Screened subnet

Explanation:

In Computer science, Firewall implementation and design for an enterprise can be a daunting task. Choices made early in the design process can have far-reaching security implications for years to come.

Screened subnet firewall architecture is designed to host servers that offer public services.

In network security and management, one of the network architecture used by network engineers for the prevention of unauthorized access of data on a computer is a screened subnet. A screened subnet can be defined as a network architecture that uses a single firewall with three screening routers as a firewall.

A screened subnet is also known as a triple-homed firewall, this is because it has three (3) network interfaces;

1. Interface 1: it is known as the external or access router, which is a public interface and connects to the global internet.

2. Interface 2: it is known as the demilitarized zone or perimeter network, which acts as a buffer and hosted public servers (bastions host) are attached herein.

3. Interface 3: it is known as the internal router, which is a subnet that connects to an intranet.

The screened subnet when properly configured helps to prevent access to the internal network or intranet.

4. Calculate the standard deviation for the following data set: Foundations of Technology Engineering byDesi OITEEA . . Data Set = 4, 14, 6, 2, 7, 12 217 ,​

Answers

Answer:

\(\sigma_x = 5.68\)

Explanation:

Given

\(x = 4, 14, 6, 2, 7, 12 2,17\)

Required

The standard deviation

First, calculate the mean

\(\bar x =\frac{\sum x}{n}\)

So, we have:

\(\bar x = \frac{4+ 14+ 6+ 2+ 7+ 12 +2+17}{8}\)

\(\bar x = \frac{64}{8}\)

\(\bar x = 8\)

The standard deviation is:

\(\sigma_x = \sqrt{\frac{\sum(x - \bar x)^2}{n-1}}\)

So, we have:

\(\sigma_x = \sqrt{\frac{(4 - 8)^2+ (14 - 8)^2+ (6 - 8)^2+ (2 - 8)^2+ (7 - 8)^2+ (12 - 8)^2+ (2 - 8)^2+ (17 - 8)^2}{8-1}}\)

\(\sigma_x = \sqrt{\frac{226}{7}}\)

\(\sigma_x = \sqrt{32.2857}\)

\(\sigma_x = 5.68\)

What are the 5 core concepts explored in the computer science standards?

Answers

engineering, computer science, information systems, information technology, and software engineering

Is there enough time in A Levels to code? Or, prepare for Python certifications? I am currently in grade 10, and highly interested in computer and programming. I am a basic level programmer.

Answers

Yes, there enough time in A Levels to code as well as prepare for Python certifications, because it can basically take 3 - 6 months and since you are in grade ten, there is a lot of time to do so.

How challenging is certification in Python?

No, most people don't find learning Python difficult. Python is really regarded as one of the simplest programming languages to learn. Even if you've never written a line of Python code before, you can learn to program in Python, but it will take time, and there will probably be frustrating times along the way.

Note that the majority of programmers concur that being familiar with the fundamentals of coding takes three to six months. But depending on your personal pace, you can learn coding more quickly or more slowly. Let's talk about the specific abilities you must develop.

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1.
Why do you need to use sources of information when writing a formal business
document?

Answers

Answer:

You need sources of information when writing a formal business document because, if the person receiving the document would like to see the full source you got your information from it could help them understand better what they are reading. Also it looks more professional.

Explanation:

Which activity is the best example of a negative habit that may result from
heavy computer and Internet usage?
A. Playing web-based games instead using social media
B. Shopping online in order to find a gift for a friend
c. Using apps for driving directions instead of using a paper map
O D. Avoiding local friends in order to play online games
SUBMIT

Answers

Answer:

D

Explanation:

Any of these is an example, but the most drastic would be D, Avoiding local friends in order to play online games

Type the correct answer in the box. Spell all words correctly.
Natasha came across a website that had a building image, where each window in the building was clickable. She clicked on one of the windows,
Upon clicking the link information was sent to another computer. This computer processed the information and returned the appropriate page
about a window. Which attribute is used in this case to identify the type of image map?
The
attribute is used in this case to identify the type of image map.

Answers

Answer:

Redirection

Explanation:

This is something called redirection, you can sometimes get paid for it, or just some sort of reward, sometimes even a virus scanner.

Answer:

The  ismap  attribute is used in this case to identify the type of image map.

Explanation:

Using ismap indicates to your browser that the link is processed by another computer (server). Once the server processes the information about the link, it returns the appropriate page.

regarding the free look provision the insurance company

Answers

The free look provision is an important feature of insurance policies that provides policyholders with a limited amount of time to review their policies and make changes or cancel the policy without any penalties or fees.

This provision is particularly important for people who purchase insurance policies online or over the phone, as they may not have had the opportunity to review the policy in person or speak with an agent about any concerns or questions they may have had.The length of the free look period varies depending on the state and type of insurance policy. In some states, the free look period may be as short as 10 days, while in others it may be up to 30 days or longer. During this time, policyholders are encouraged to read the policy carefully, ask questions, and make any necessary changes.If a policyholder decides to cancel their policy during the free look period, they will typically receive a full refund of any premiums paid. However, it is important to note that if the policyholder has already made a claim during this time, they may not be eligible for a full refund.Overall, the free look provision is an important protection for consumers purchasing insurance policies. It allows them to review the policy carefully and make informed decisions about their coverage without fear of penalty or fee.

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what is your favorite coler and what do you like to do and

Answers

Answer:

Orange

Explanation:

I like orange because its vibrant.

10. An area on a slide that can hold text, graphics and other media is called

Placeholder
Section
Text Box​

Answers

Answer:

textbox

Explanation:

how many words is 4 pages double spaced times new roman 12

Answers

There are 1,000 word count double spaced in 4 pages. Documents that typically are 4 pages include college essays, operating manuals, and longer form blog posts.  A standard single-spaced page has 500 words.

2000 words, single-spaced, or 1000 words, double-spaced, make up 4 pages. It will take approximately 7 minutes to read 4 pages. On average it will take approximately 50 minutes for the average writer typing on a keyboard at a typing speed of 40 words per minute. When utilising conventional 1-inch margins, 12 pt. Arial font, and an A4 (letter size) page size, a word count of 2,000 will result in approximately 4 pages with single spacing or 8 pages double-spaced.

However, the number of pages will vary depending on your margins, font family, font size, whether you use multiple spaces after a period, and your paragraph spacing settings. For example, 1 page single spaced created using Arial font will generate only 0.9 pages with Calibri or Times New Roman font.

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What mathematical functions can be solved while using python?

Answers

Answer:

Once the script is loaded into a Python code, it gives the ability to solve problems of: Nonlinear equations Differential and algebraic equations

Explanation:

Once the script is loaded into a Python code, it gives the ability to solve problems of: Nonlinear equations Differential and algebraic equations

Which function is used to add a range of cells?
A) =SUM
B) =AVERAGE
C) =MAX
D) =ADD

Answers

Answer:

Sum

Sum a range of cells -- SUM Function

The quickest way to sum a range of cells is to use the AutoSum button. It automatically enters a SUM function in the selected cell. The SUM function totals one or more numbers in a range of cells.

Explanation:

The answer is "Option A" because it is used for adding the range of the cell, and the further explanation can be defined as follows:

The AutoSum button was its fastest way to add up a range of cells in Excel. It automatically inserts a SUM function into the specified cell. The SUM function sums up one or more numbers inside a range of cells. SUM function combines numbers together. Numbers can be added individually, as well as numerical values and ranges.

The wrong solution can be defined as follows:

In option B, it is used to calculate the average of the value.In option C, it is used to calculate the maximum number in the among values.In option D, it is used to calculate the Autosum.

Therefore "Option A" is the correct choice.

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Which function is used to add a range of cells?A) =SUMB) =AVERAGEC) =MAXD) =ADD

Discuss two business information systems that are used in two different sectors in a modern economy.

Answers

Explanation:

Two business information systems that are used in two different sectors in a modern economy are:

Transaction Processing System (TPS):

The Transaction Processing System (TPS) is a type of data system for capturing, storing, updating and recovering a company's data operations. Transaction systems often try to provide consistent response times to requests even if this is not as important as in real-time systems.

Management Information System (MIS)

MIS is the study of persons, technological systems and associations between them. Management Information Systems (MIS) Professionals at MIS allow businesses to profit maximally from staff, facilities and business process expenditure. MIS is a field of people with a focus on technological support.

what would be the implication of assigning a /32 on subnetting?

Answers

Assigning a /32 subnet in subnetting would result in a single IP address being assigned to the network. In IP addressing and subnetting, the subnet mask determines the size of the subnet and the number of available IP addresses.

A /32 subnet mask is the smallest possible subnet and only allows for a single IP address to be assigned within that subnet. This is typically used for point-to-point connections, where two devices need to communicate directly with each other.

Implications of assigning a /32 subnet include:

Limited address capacity: With only one IP address available, there is no room for additional devices or hosts on the network.No subnetting: Subnetting allows for the division of a network into smaller subnets, enabling better organization, management, and efficient use of IP addresses. With a /32 subnet, subnetting is not possible. No network communication: A /32 subnet is limited to a single host, which means it cannot communicate with other devices on the network without the use of additional networking techniques such as Network Address Translation (NAT).

Assigning a /32 subnet can be useful for specific scenarios that require a dedicated point-to-point connection or when assigning a single IP address to a specific device.

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Select all the correct answers. Which two statements are true about electric current through a circuit? Current flows from a positive terminal to a negative terminal. Current flows through an open circuit. Electrons flow from a positive terminal to a negative terminal. Electrons flow in the same direction as current. Electrons flow from a negative terminal to a positive terminal.

Answers

Answer:

Current flows from a positive terminal to a negative terminal.Electrons flow from a negative terminal to a positive terminal.

Explanation:

Indeed, it is a proven and generally accepted fact that electric current flows away from a positive terminal to a negative terminal. This is the case because the positive terminal of an electric circuit is under the pushing influence of the electric field, hence it moves to the negative terminal.

While electrons in an electric circuit flow from a negative terminal to a positive terminal. In other words, they move in the opposite direction of the current through the wires.

que es la felicidad??​

Answers

Se feliz el amor es nada

6. What type of application is designed for making slide shows?​

Answers

Keynotes is good , PowerPoint

Explanation:

Microsoft PowerPoint is one of the most popular presentation software package available. and it does do a very good job however, PowerPoint is not the only professional PowerPoint tool is there is 2019. there are many PowerPoint alternative available if you need to make a presentation.

All the following statements are true EXCEPT: A) Both SUMIF and SUMIFS Functions consider the conditions first. B) SUMIFS allows SUMRANGE first whereas SUMIF allows sum range last. C) SUMIFS considers conditions last whereas SUMIF considers conditions first D) SUMIFS allows multiple conditions a. A b. B c. C d. D

Answers

All the following statements are true EXCEPT for the statement "Both SUMIF and SUMIFS Functions consider the conditions first."

What is the difference between SUMIF and SUMIFS functions?

SUMIF and SUMIFS are two different functions that are used in Excel. Both functions are used to add up the values in a range of cells that meet specific conditions. But, there is a difference between these two functions. The primary difference is that SUMIF only allows one condition to be checked. While SUMIFS allows multiple conditions to be checked.

For example: SUMIF: =SUMIF(A1:A5, "Apples", B1:B5) - This formula will only sum the values in column B if the corresponding cell in column A is "Apples".SUMIFS: =SUMIFS(B1:B5, A1:A5, "Apples", C1:C5, ">0") - This formula will sum the values in column B if the corresponding cell in column A is "Apples" AND the corresponding cell in column C is greater than 0.

Another difference is that in SUMIFS, the sum_range comes first, while in SUMIF, it comes last. In other words, SUMIFS allows sum_range first, whereas SUMIF allows sum_range last.

All the other options that are mentioned in the question are true. Option A) Both SUMIF and SUMIFS Functions consider the conditions first. Option C) SUMIFS considers conditions last whereas SUMIF considers conditions first Option D) SUMIFS allows multiple conditions to be true.

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I’m completely lost...can someone help!

Im completely lost...can someone help!

Answers

Answer:

2,000

Explanation:

I am in collage

Answer: i wish i could help you

Explanation:

i wish i could help you

how to use software for simulation experiments and probability calculations, and how to interpret the results and observe patterns in the data.

Answers

using simulation and probability software can help to streamline the process of running experiments and calculations, and can make it easier to interpret the results. By following these tips, you can ensure that you are getting the most out of your software and making informed decisions based on the data.

Simulations and probability calculations can be performed using software that is designed for this purpose. The following are some tips on how to use such software and interpret the results:

1. Content loading: To use simulation and probability software, you will need to load the appropriate content into the program. This content may include data on variables, constraints, and other factors that will be used in the simulation or calculation. The content can be loaded into the software either manually or automatically.

2. Software usage: Once the content is loaded, the software can be used to perform the simulation or probability calculation. This may involve setting certain parameters, defining variables, and specifying other details of the experiment or calculation.

3. Interpretation of results: Once the simulation or calculation is complete, the results must be interpreted in order to make sense of the data. This may involve analyzing the data to identify patterns, trends, or other relevant factors. The results can then be used to draw conclusions about the experiment or calculation, and to inform future decision-making.

4. Observing patterns in data: Patterns in the data can be observed by looking at the graphs, charts, and other visualizations that are generated by the software. These visualizations can help to highlight trends, correlations, and other important factors that may not be immediately apparent from the raw data.

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Write a function called "getOdd" where it takes in any string input and prints out the characters in the sentence whose decimal ASCII values are odd.
So, for example, if the input was "ABCD", we would only print out "AC" since A is 65 and C is 67.

PLEASE ANSWER ASAP
FIRST PERSON GET BRAINEST AWARD!!!!

Answers

Answer:

Change this around however you'd like:

Explanation:

def getOdd(word) -> str:

wordArr = word.split()

wordArr = list(fliter(lambda x: ord(x) % 2 != 0, wordArr))

return "".join(wordArr)

(Sorry if formatting is a bit off, I'm on mobile)

Please help, will give brainliest!!! I need help with these coding questions, any help is appreciated

Please help, will give brainliest!!! I need help with these coding questions, any help is appreciated
Please help, will give brainliest!!! I need help with these coding questions, any help is appreciated

Answers

Answer:

class Foo:

   def F(self, n):

       if n == 1:

           return 1

       return self.F(n - 1) + 3 * n - 2

Explanation:

This should cover part a to this question. The thing I'm not sure on is they use the term "method" which in python technically means a class function...but then list one argument with the function call which makes me think it is possibly just supposed to be a regular function. Which would be the following snippet. It would depend on if you are using classes or not yet in your coding class.

def F(n):

   if n == 1:

       return 1

   return F(n - 1) + 3 * n - 2

Play around with it and look into python "lists" and "for loops" for part c. Part b I'm not sure what kind of example they want since I'm not in that class. Good luck!

___________ is the number of pixels per inch

Answers

Answer:

Explanation:

What ever the number is inches is divide it by pixels

Which network type uses light pulses to transmit data?

Answers

Answer:

Fiber optic cable

Explanation:

Final answer:

Fiber optic network uses light pulses to transmit data through optical fibers.

Explanation:

The network type that uses light pulses to transmit data is called fiber optic network. In a fiber optic network, data is transmitted through optical fibers using pulses of light. These networks offer high-speed and secure data transmission, making them suitable for long-distance communication and high-bandwidth applications.

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this text command defines how text will appear

Answers

In programming, the text command is not a specific command, but rather a term used to refer to a wide range of commands and functions that manipulate or display text.

What is a text command?

Text commands may include functions for formatting, searching, replacing, and displaying text within a program or on a screen. These commands may be used in a variety of programming languages, including C, as you mentioned.

In C, for example, there are many standard library functions that can be used to work with text. Some of the most commonly used functions for working with text in C include:

printf(): used to display formatted text on the screen or in a file

scanf(): used to read formatted text from the keyboard or a file

strcpy(): used to copy one string of text to another

strcmp(): used to compare two strings of text to determine if they are equal

strlen(): used to determine the length of a string of text

Overall, text commands are a crucial part of programming and are used extensively in applications that involve working with text data.

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How to fix my pc from this

How to fix my pc from this

Answers

Answer:

Restart it

Explanation:

Answer:

break it and throw it away

Explanation:

cuz why not

A cookie is stored on your device's memory or disk in what file format? 1.)video file

2.) audio file

3.)image file

4.) text file

Answers

Answer:

text file format

4 this is the answer

which item is developed last in the cyclical design process

Answers

The item that is developed last in the cyclical design process is known to be Prototype.

What is the last step in the design process?

Designers which can be known to be evaluators are said to test the complete product using the best solutions known to be in the Prototype stage.

Note that The item that is developed last in the cyclical design process is known to be Prototype.

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A collection of pitches arranged in ascending or descending order is called a(n):_____. at 21 days into development, the cells are the shape of a flat disk but will fold into a ____. A.sphereB.boxC.pyramidD. tube Nick and Liv can complete the same task together in 5 hours working together. Live works twice as fast as Nick. How long would it take Nick to complete the task himself. A credit card company charges a customer 1.5% per month on the unpaid balance of charges on the credit card. What is the finance charge in a month when the customer has an unpaid balance of $254? What is the total amount that must be paid to have the account paid in full? Louise mowed a neighbor's yard to earn $25. She mowed a few more yards and earned an additional $75. She continued to mow all of the yards each week for a total of 5 weeks, earning money at the same rate. At the end of the 5 weeks, she spent $250. Please help solve questions J is the midpoint of line KM. If JK=12x+5 and JM=10x+15. find KM Mrs. House wants to buy a wireless speaker for her husband. She has narrowed down her choice to two stores: Kohls is selling the speaker for $60.00. Mrs. House has a Friends and Family discount coupon for 25% off. Target purchased the speaker for $38.00 and marked it up by 15% to sell in the store. How much would Mrs. House pay for this speaker at Target? Show your work The sum of two numbers is 20.5 and the difference of the same two numbers is 6.5.Find the two numbers. * The function y(t) satisfies Given that (y(/12)) = 2e/6, find the value c. The answer is an integer. Write it without a decimal point. - 4 +13y =0 with y(0) = 1 and y()=e*/. T/F If crane work activities come within 6 meters (20 feet) of lines, you will need barricades to exclude: Nonessential personnel Kelly has $92. 63 and the bank. She wants a jacket for 91 but must keep at least 25 in the bank The first sign of mild hypothermia is shivering.TrueFalse A horzontal beam of uniform section is pinned at its ends Which are at the same level and is loaded at the left-hand pin with an anticlockwise moment ' 5kNm ' and at the night -hand pin with a clockwise moment ' 10kNm, both in the same vertical plane. The length between the pin is 5 m ? Use the virtual work method to find: a slope at A b: slope at B c deflection at the midpont of the span El is constant. Fig 1. Bearn for question 1 What are the aspects they use in adult internal management system ? in the diagram,the measure of angle ACB is 25 degrees. what is the measure of angle AOB? What do you conclude with regards to: The specific heat capacity of water? The time it takes for each volume to reach a specific temperature? Explain help ASAPtrue or false?and please tell me how to solve it How can a company decrease its food costs and waste? Throw away food that is out-of-season. Distribute local food to places around the world. Increase the number of diesel-powered trucks to transport food. Use local resources to make food products. one of the most difficult factors in transitioning from wartime to peacetime after the great war was .