When implementing subtype associations in a database table, there are several options available. Here, we will discuss the considerations you would use in choosing one design over the others.
One table for all subtypes: In this design, you would have a single table that includes attributes for all the subtypes, such as Department, Employee, and Project. Each row would represent an instance of a subtype, and you would use a discriminator column to indicate the subtype.
For example, you might have a column called "subtype" with values like "Department", "Employee", or "Project". The considerations for this design include simplicity and ease of querying, as all the data is in one table. However, it can lead to a lot of null values in the table, which may impact performance and storage efficiency.
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Help! Computer Science Discoveries. Hurry its timed
Answer:
1. categories
2. character
3. code
4. portrait
5. conversation
6. stage
7. Landscape
8. backdrop
Explanation:
I'm not sure what "a visual programming language for children" would be, sorry about that, and sorry if these are wrong .-
13. What is a structured decision table? How do you make one? How do you document it?
A structured decision table is a tool used in decision-making processes to help organize and analyze complex decision-making scenarios. It is a matrix-like chart that outlines all possible combinations of conditions and actions that can occur in a particular scenario.
To make a structured decision table, you first need to identify the problem or decision that needs to be made and the relevant conditions and actions. Next, you list all possible combinations of these conditions and actions in a table format. Each row in the table represents a unique combination of conditions and actions.
Once the table is constructed, it is important to document it clearly and accurately. This can be done by adding labels to the columns and rows, and including a legend or key to explain the symbols or abbreviations used in the table. It is also helpful to include a brief description or explanation of the conditions and actions listed in the table to ensure that everyone involved in the decision-making process understands the meaning behind each element.
Overall, a structured decision table is a valuable tool for making complex decisions. By organizing all possible scenarios in a clear and concise way, it can help ensure that all relevant factors are considered and that the best possible decision is made.
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The next few questions related to the class Final whose definition (.h file) is shown below. This Exam class represents a certain student’s test score.
#include
class Final { public:
Final ( std::string student, int score = 90 ); bool equal( const Final & e1, const Final & e2 ) const;
int getScore() const; std::string getStudent() const; private:
std::string mName; // Final's Student name
int mScore; // Final's Student Score
};
Part A: You are working with a partner to build an online grading system that works with the class Final shown above. Your partner has added a new method to the Final class defined as: void Final::bar( int i ) const;
What do you know from this declaration? Select one:
a. None of the above choices are correct
b. The Final instance you use to call this method bar will not be changed, no matter what happens
c. A class method cannot be marked const, so this declaration will break the Final class
d. The Final instance you use to call this method bar maybe changed
Part B: You are working with a partner to build an online grading system that works with the class Final shown above. Your partner has defined the function signature: void foobar( const Final & e ) What do you know from this declaration? Select one:
a. None of the above choices are correct
b. The Final instance you pass to this function foobar will not be changed, no matter what happens
c. C++ will make a copy of the Final instance you pass to this function foobar and use it inside this function foobar
d. The Final instance you pass to this function foobar maybe changed by the function
Part C: Can the constructor: Final( std::string student, int score = 90 ); which will set the values of certain data members be marked const?
a. Yes, it can be marked const
b. Constructors can always be marked const, but only in the .h file, not the .cpp file
c. No, it cannot be marked const
d. It depends. Not enough information has been supplied to determine Yes or No.
e. Constructors can always be marked const, but only in the .cpp file, not the .h file
Part A: The correct answer is option b. The Final instance you use to call this method bar will not be changed, no matter what happens. This is because the method is marked as const, which means it cannot modify the object it is called on.
Part B: The correct answer is option b. The Final instance you pass to this function foobar will not be changed, no matter what happens. This is because the function signature indicates that a const reference to a Final object is being passed, meaning the function cannot modify the object.
Part C: The correct answer is option c. No, it cannot be marked const. Constructors are responsible for initializing the object's state, and marking a constructor as const would imply that the object cannot be modified during initialization, which is incorrect.
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Who got social media that is smart in English subject a lot pass it here your social media pls?
Answer:
I'll help with work for a low price HMU
_kay.sanchez_ Instagram
I need to calculate the % of Grand Total on Microsoft Excel, but can't for the life of me remember how to do that. Help would be greatly appreciated.
PS: Reposting my question because the answers I got previously were both only made for points, not to help in any way. :(
Answer:
You need to first use the Sum function to add up all the costs of September.
Then divide each September cost by the grand total that you got. After that format the last column to be percentages.
Look at the attached file for the formulas used.
The expression being tested by this statement will evaluate to true if varl is: an alphabetic character 9 a symbol such as $ or & both A and C None of these Explain the difference between C-Strings and string objects.
The expression being tested by this statement will evaluate to true if `varl` is an alphabetic character. The statement will be false if `varl` is a symbol such as `$` or `&`. None of these is true. C-strings are null-terminated arrays of characters in C, whereas string objects are a part of the Standard Template Library (STL) in C++.To create and manipulate C-strings, you need to use character arrays that are null-terminated. The last character in a C-string array is a null character '\0' which is automatically added to the string at the end, to signify that the string has ended. In contrast, in string objects in C++, strings are represented as an instance of the `std::string` class which is a part of the STL. String objects in C++ are more flexible than C-strings, as they provide many built-in functions to manipulate strings such as substring, concatenation, and comparison operations. A string object is created by using the `std::string` class. This class defines several member functions to manipulate the string object.
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The statement will evaluate to true if varl is an alphabetic character. The correct answer is: an alphabetic character.
A C-string is a sequence of characters held in a contiguous block of memory, with a null character at the end. It's also known as a null-terminated string. C-strings can be manipulated with a variety of standard library functions, but they don't provide a built-in class for strings.A string object is a C++ class that can represent a string of characters. It contains a range of members and functions that make it simple to manipulate strings.
A string object can be defined in a number of ways, including with string literals or using a constructor function, and its contents can be changed by using a variety of member functions .The primary advantage of string objects over C-strings is their flexibility and user-friendliness.
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What can happen if you do not follow the directions when cooking or baking? (Give 4 examples in a sentence each)
Answer: 1: You will make it incorrectaly 2: It will taste terrible 3: You may break appliences 4: you may burn down your house.
Explanation:
What type of computer uses the 68-pin micro-dimm and 144-pin so-dimm? A)Desktop PC
B)Laptop C)Mainframe D)Mobile
B) Laptop computers use the 68-pin micro-DIMM and 144-pin SO-DIMM.
Laptop computers utilize the 68-pin micro-DIMM and 144-pin SO-DIMM form factors for their memory modules. These smaller and more compact modules are specifically designed to fit within the limited space constraints of laptops. The 68-pin micro-DIMM is used for DDR SDRAM memory, while the 144-pin SO-DIMM is used for DDR2 and DDR3 SDRAM memory. These memory modules provide high-speed data transfer and efficient performance, making them suitable for the smaller and power-constrained environments of laptops. By using these specialized memory modules, laptop manufacturers are able to optimize the overall size, weight, and power consumption of their devices without compromising on performance.
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mateo is a forensic specialist. he examined a mobile device as part of a crime investigation. he is now working on the forensic report. what does mateo not need to include in the mobile device forensic report, according to national institute of standards and technology (nist) guidelines?
According to the National Institute of Standards and Technology (NIST) guidelines,
Mateo does not need to include irrelevant or immaterial information in the mobile device forensic report. The report should only contain relevant and significant findings and evidence related to the crime investigation.
Mateo should also ensure that the report follows the NIST guidelines for forensic reports to ensure its accuracy and reliability.
He also does not need to include his personal opinions or speculative information in the mobile device forensic report. He should focus on presenting factual, objective, and accurate findings based on the examination of the mobile device.
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When a cookie is created during a website visit, it is stored:
When a cookie is created during a website visit, it is stored on the hard drive if the visitor's computer.
What is a cookie?A cookie simply means the small blocks of data that are created by a web server.
In this case, when a cookie is created during a website visit, it is stored on the hard drive if the visitor's computer.
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working on a python assignment, not sure what i did wrong can anyone help?
Answer:
Explanation:
line 13 should be changed to:
print(“Item 1: “ + item1 + “ - $” + str(float(const1)))
You cannot concatenate a string to float type.
. . ........Sad + sad= very sad
Answer:
very true.. this is well said
Answer: Welcome to 2021, i understand love. stay strong im in this w u <3
Explanation:
Which of the following is the necessary equipment in order for skilled hackers working from within a
corrections facility to gain access to store account information? (Select all that apply.)
Internet connection
password detectors
computer
PIN detectors
The necessary equipment for skilled hackers working from within a corrections facility to gain access to store account information includes an Internet connection and a computer.
How is this so?An Internet connection is essential for hackers to connect to the target system and retrieve/store account information.
A computer is needed to perform the hacking activities and execute the necessary tools and techniques. Password detectors and PIN detectors are not mentioned as necessary equipment in this context.
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What are examples of object dependencies? Check all that apply.
O a button with an anchor property
Oa report that is based on a query
Oa macro with conditional formatting
Oa query that uses data from a table
Oa table that underlies the report information
Oa text box control aligned to the edge of a report
The examples of object dependencies are:
A report that is based on a query.A query that uses data from a table.A table that underlies the report information.What is an object dependency?An object dependency is known to be a term that connote the order in which an object do work or operate in.
Note that the object that is said to be operated on will have to have a reference metadata for itself and an example of object are tables, query, etc.
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While social security benefits millions of americans, the system is not perfect. In what ways is inequality built into the social security system?.
Growing economic disparity directly jeopardizes the financial stability of Social Security. The total wages of low- and middle-income workers are strongly correlated with Social Security's funding due to the payroll tax cap, but not the full wages of higher-earning workers.
What is the Social Security system?The phrase "Social Security" is frequently used in the United States to refer to the Old Age, Survivors, and Disability Insurance program, which is run by the Social Security Administration (SSA). The Social Security Act was first passed in 1935, and its present, revised form now includes a number of social welfare and insurance programs.
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Which two quality practices apply to Agile teams? (Choose two.)
a. Providing architectural runway
b. Peer review and pairing
c. Decentralized decision-making
d. Using nonfunctional requirements
e. Establishing flow
Providing architectural runway and Establishing flow are the two quality practices apply to Agile teams. Hence, option A and E are correct.
What agile principle says about architecture?Utilize the principles of continuous improvement and set aside time to enhance the procedures and equipment required for the job. Integrate quality; be accountable for guaranteeing that all output satisfies adequate standards of quality throughout development.
A system's active, evolving design and architecture are supported by a set of values, practices, and partnerships known as agile architecture. With this strategy, which supports the DevOps philosophy, the design of a system can continuously change over time while still meeting the needs of the present user base.
Thus, option A and E are correct.
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Explain what will happen if we continue to use fossil fuels at the rate we are now and what impacts it will have on the planet.
Answer:
At the point when non-renewable energy sources are singed, they discharge carbon dioxide and other ozone depleting substances, which thusly trap heat in our air, making them the essential supporters of an Earth-wide temperature boost and environmental change. At the point when we consume oil, coal, and gas, we don't simply meet our vitality needs—we drive the current an unnatural weather change emergency also. Non-renewable energy sources produce huge amounts of carbon dioxide when consumed. Carbon discharges trap heat in the air and lead to environmental change.
1
You are given an input file called with the following content: 14 Ana \( 73.39 \) true blank_line... is here false 3113 Ray Poojitha 14 Nic 15 Aerin \( 16.0 \) Jacob and Omar Vidhi Andrew Mi
The given input file contains several pieces of information that are separated by spaces, including names, numbers, and boolean values. The information in the file appears to be arranged in a specific pattern, with each piece of information appearing on a new line.
Here is an explanation of the terms and data included in the file:
14Ana (73.39)true(blank_line)is herefalse3113RayPoojitha14Nic15Aerin (16.0)Jacob and OmarVidhiAndrewMiAna: The name "Ana" is included in the file.73.39: The number 73.39 is included in parentheses immediately after Ana's name. true: The boolean value "true" is included on the third line of the file.blank_line: There is a blank line between the boolean value "true" and the value "is here".false: The boolean value "false" is included on the fifth line of the file.3113: The number 3113 is included on the sixth line of the file. Ray:The name "Ray" is included on the sixth line of the file. Poojitha: The name "Poojitha" is included on the sixth line of the file.14: The number 14 is included on the sixth line of the file.Nic: The name "Nic" is included on the seventh line of the file.15: The number 15 is included on the seventh line of the file.
Aerin: The name "Aerin" is included on the seventh line of the file.16.0: The number 16.0 is included in parentheses immediately after Aerin's name. Jacob: The name "Jacob" is included on the eighth line of the file. Omar: The name "Omar" is included on the eighth line of the file.
Vidhi: The name "Vidhi" is included on the ninth line of the file. Andrew: The name "Andrew" is included on the ninth line of the file.Mi: The name "Mi" is included on the ninth line of the file.
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If the offer is no longer valid, perhaps because of a timeout or another client taking the lease, the selected server responds with a ___________________ message.
If the offer is no longer valid, perhaps because of a timeout or another client taking the lease, the selected server responds with a "NACK" (Negative Acknowledgment) message.
A NACK message is a type of response message that indicates a failure or rejection of a previous request or message. In this context, the DHCP server sends a NACK message to inform the client that the offered IP address is no longer available and the client needs to request a new address.
The NACK message typically includes a reason code or message indicating why the offer was rejected. The client can then send a new DHCP request message to request a new IP address and other configuration information.
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With bluetooth printing, the computer and printer need to be within an approximate ______-foot range.
The wireless technology used by Bluetooth printers can be set up to work with iOS, Android, and Windows devices. These systems use 2.4GHz low-power radio waves to convey data.
What does the term "wireless printer" mean?Wireless printers, also referred to as WiFi printers, may connect to a network without the need for a hard connection or cable. The laptops, cellphones, and tablets linked to a WiFi network can print to a wireless printer once it has been connected to the network.
Is a Bluetooth printer available? Inkjets, lasers, and even multifunction devices that print, scan, and copy are all options. A Bluetooth printer is the best option if you want a printer that can go anywhere you do and work with your laptop or other mobile devices.
If the network is congested, if there is network interference, or if the signal strength is weak, Wi-Fi printers may experience lengthy print times and print problems. With Bluetooth, printing is rapid and interference-free.
The two most common types of wireless printers are Bluetooth and Wi-Fi. Although Bluetooth is easy to set up and use, it is best suited for small offices with a small number of users. Wi-Fi can accommodate more users across a wider area, but it requires more time to set up.
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Selective colleges choose to have in-person meetings to learn more about the applicants. These meetings are called:
A. college recruiting meetings.
B. personal meetings.
C. student orientations.
D. college interviews
Selective colleges choose to have in-person meetings to learn more about the applicants. These meetings are called college interviews. Thus, option D is correct.
What is a College?A college has been either an educational institution or itself or one of its component parts. A college would be the secondary school, a part of the a collegiate or the federal university, a postsecondary institution offering the degrees, or the facility providing the vocational training.
A college could be the high school or the secondary school, a college of the further education, a training facility that would grants trade qualifications,as well as a higher-education provider without university status, or the component part of a university.
In the United States, a college may provide undergraduate programs as an independent institution, as the undergraduate division of a university, as a residential college of a university, as a community college, or as the undergraduate division of a non-profit organization.
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assuming classfull routing, how many least number of bit positions to borrow from, to subnet 199.67.67.0 into 5 subnets.
Assuming classful routing, the IP address 199.67.67.0 falls under Class C, which by default has a subnet mask of 255.255.255.0. To subnet this network into 5 subnets, we need to borrow enough bits to create at least 5 subnets.
To find the minimum number of bits required to create 5 subnets, we need to find the smallest power of 2 that is greater than or equal to 5. The smallest power of 2 greater than or equal to 5 is 2^3 = 8. Therefore, we need to borrow 3 bits from the host portion of the IP address to create 8 subnets.
The new subnet mask would be 255.255.255.224, which means that each subnet will have a range of 32 IP addresses (30 usable addresses). The subnets would be:
- 199.67.67.0/27
- 199.67.67.32/27
- 199.67.67.64/27
- 199.67.67.96/27
- 199.67.67.128/27Note that when we borrow bits to create subnets, we reduce the number of host bits available, which means that each subnet will have fewer usable IP addresses. Also, it's important to note that classful routing is no longer used on the internet and has been replaced by classless routing, where the subnet mask can be varied to create any number of subnets and hosts within those subnets.
Hi! To subnet the IP address 199.67.67.0 into at least 5 subnets, you'll need to borrow a minimum number of bit positions from the host portion of the address while assuming classful routing.
199.67.67.0 is a Class C address, which has a default subnet mask of 255.255.255.0. The host portion of the address has 8 bits available. To create 5 or more subnets, you'll need to borrow at least 3 bits from the host portion (2^3 = 8), as borrowing 2 bits would only provide 4 subnets (2^2 = 4), which is not enough.
Therefore, the least number of bit positions to borrow for creating 5 subnets is 3.
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Assuming classful routing, the IP address 199.67.67.0 falls under the Class C category, which by default has a subnet mask of 255.255.255.0. This means that all the 32-bit positions of the IP address are already assigned for network and host addresses.
To subnet this network into 5 subnets, we need to borrow some bit positions from the host portion of the IP address. We can use the formula 2^n, where n is the number of bit positions borrowed, to determine the number of subnets created.
To create 5 subnets, we need to borrow at least 3 bit positions since 2^3 = 8 subnets, which is more than 5. We cannot borrow fewer than 3 bit positions because 2^2 = 4 subnets, which is not enough.
Thus, we need to use a subnet mask with at least 3 additional bits in the host portion, which gives us a subnet mask of 255.255.255.224. This subnet mask uses 3 additional bit positions (11100000) in the fourth octet of the IP address, leaving us with 5 subnets of 32 IP addresses each.
Therefore, to subnet 199.67.67.0 into 5 subnets, we need to borrow at least 3 bit positions from the host portion and use a subnet mask of 255.255.255.224.
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help pls I will mark brainliest the top answer i need it rn
Nonsense = REPORT
Answer the question 3-5 sentences.
"Why is recycling very important and beneficial to you and your community?"
Answer:
to reduce outbreak of diseases
Explanation:
materials recycled, funds earned from it are used developmental projects in my community
plz help me
Marie has never used a word processor. in 3 to 4 sentences describe how she could benefit from using a word processor to complete school writing assignment.
Her info would be clear to read. This means it cold flow better, and make more sense when reading it. If she didn't use it, she might have unclear sentences.
A film producer is having difficulty with distribution. After major and minor theaters show no interest in the film, what would the logical next move be for him to take?
release the soundtrack on compact disc
make a sequel
give up
pursue Internet distribution
Answer:
pursue internet distribution
Explanation:
Answer:
B: pursue internet distribution
Explanation:
edg2021
Explain software piracy and Hacking
Answer:
Hacking refers to attempts to gain information from otherwise undisclosed areas. Hacking is the most commonly known computer crime, however, people refer to hacking as committing any criminal act using a computer while this is not the case. ... Piracy refers to the unauthorized duplication of computer software.
Hope this helps!!
Explanation:
Answer:
SOFTWARE PIRACY is a term used to describe the act of illegal using, copying distributing software without ownership or legal rights eg: downloading movies
HACKING is an attempt to exploit a computer system or a private network inside a computer
an employee sets up apache http server. he types in the browser to check that the content is there. what is the next step in the setup process?
The next step in the setup process would typically involve configuring the server to serve the content correctly and securely.
Here are some key steps that may follow:
1. Virtual Host Configuration: If the Apache server is hosting multiple websites or applications, the employee would configure virtual hosts to ensure proper routing of requests to the correct content directories.
2. SSL/TLS Configuration: If the employee intends to enable secure connections using HTTPS, they would need to set up SSL/TLS certificates for the server. This involves generating or obtaining SSL certificates and configuring the server to use them for encrypted communication.
3. Fine-tuning Server Settings: The employee might adjust various server settings based on specific requirements, such as performance optimization, caching, access controls, logging, or error handling.
4. Testing and Monitoring: Once the initial configuration is complete, the employee would conduct thorough testing to ensure all desired functionalities, including dynamic content, server-side scripting, and any additional modules or extensions, are working correctly. They would also set up monitoring tools to track server performance and address any issues that may arise.
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Select the correct answer
Beatrice is going to make her second short film on e-learning. She has already shot five GB of footage and wants to edit it into a film. Which
method of editing should she use to minimize the time spent on this activity?
a. Non-linear editing
b. Linear editing
c. Assemble editing
d. Tape-to-tape editing
a.The method of editing she should use to minimize the time spent on this activity is Non-linear editing.
Non-linear editing is the best option for Beatrice since it allows her to quickly and easily organize, access, and edit her footage. Non-linear editing can be done on a computer and is much faster than linear editing or tape-to-tape editing.
With non-linear editing, Beatrice can quickly and easily find the footage she needs and create her film. She can also easily experiment with different versions of her film, which can help her refine the structure of her film and make it more engaging.
Non-linear editing also allows Beatrice to make changes quickly and easily without having to start from scratch. This will save her a lot of time and effort, and make the editing process much smoother.
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Question 1 of 19
What element is not a selection in the Interface preferences?
O UI Character Presets
OUI Font Size
OUI Language
OUI Scaling
Answer:
UI Character Presets
Explanation:
User Interface is an option or go-to menu in a desktop application. For example, Photoshop. It allows a user to tweak the outlook to his or her own preference rather than the default settings.
To do this, a user is often tasked to do the following:
1. Click on the "Edit" menu
2. Navigate and click on "Preferences"
3. Select the "Interface" link
The options available to change includes:
a. UI Scaling
b. UI Font Size
c. UI Language.
Hence, in this case, the element that is not a selection in the Interface preferences is "UI Character preset"
Three teams (Team A, Team B, and Team C) are participating in a trivia contest. Let scoreA represent the number of correct questions for Team A, scoreB represent the number of correct questions for Team B, and scoreC represent the number of correct questions for Team C. Assuming no two teams get the same number of correct questions, what code segments correctly displays the team with the highest number of correct questions?
To make comparison between a set of variables, the if-else statement is usually employed, Hence, the correct code segment which displays the team with the highest number of correct questions is the option A.
First it checks if ScoreA > ScoreB ; - - - #1st blockIf True ; then check if ScoreA > ScoreC ;Then TeamA will be the highest, if otherwise then it will be TeamCIf the 1st block is false, then ScoreB > ScoreA;then check if ScoreB > ScoreC ;Then TeamB will be the highest, if otherwise then it will be TeamC
Hence, the correct option is A.
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Answer:
A
Explanation: