What is the third rule to normalize a database?

All primary keys must be based on filtered values.
All fields in the table must be included in the primary key.
Each primary key must be based on multiple fields in the table.
Each nonkey field must relate to the entire single-field primary key.

Answer is 4
Each nonkey field must relate to the entire single-field primary key

Answers

Answer 1

Answer:

4th option as u told

oook


Related Questions

For minimization problems, the optimal objective function value to the LP relaxation provides what for the optimal objective function value of the ILP problem?

Answers

Answer:

A lower bound on the optimal integer value.

Explanation:

The question is poorly typed.  The original question requires the optimal solution of the objective function of a minimization problem

I will answer this question base on the above illustration.

When an objective function is to be minimized, it means that the objective function will take the feasible solution with the least value.

The least value are often referred to as the lower bound.

Create a file named A10.java. Place all your code in this file. Create a publicstatic ArrayList of integers named intList.
Define a public static method addNumber(int i) that adds ito your list.
Exercise 2
Create a publicstatic HashMap of integers,integers namedintMap.
Define a public static method addPair(int i,int j) that adds i,jto your HashMap (make ithe key and j the value).

Answers

Explanation:

The file named as A10.java has been attached to this response. It contains the source code for the exercises. The source code contains comments explaining important parts of the code.

A few things to note;

i. To add an item to an arraylist, the add() method is used. For example to add an integer 7 to the arraylist named intList, simply write;

intList.add(7);

ii. To add an item to a hashmap, the put() method is used. The put method receives two parameters which are the key and value respectively. The key is a form of identifier used to store or retrieve a particular value in a hashmap. To store an integer 8 with a key of 5 in a hashmap named intMap, for example, simply write;

intMap.put(5,8);


Explain the
4 ways

ways of arranging icons.

Answers

Answer:

There are 4 ways of arranging icons:

By name.by type.by date or by size.

Explanation:

Click right-click a blank desktop area and then click Arrange icons to arrange icons for name, type, date, or size. Click on the command to show how the icons should be organized (by Name, by Type, and so on).

Click Auto Arrange to set the icons automatically. Click Auto Arrange to remove the checkmark if you want to set the icons alone.

HOW TO ARRANGE ICONS ON LAPTOP'S DESKTOP:

Right-click the Desktop and from the resulting shortcut menu select View; make sure that Auto Arrange Icons are not selected.

         Destroy it before proceeding to the next step if selected.

Click on the desktop with the righ-click.Choose Sort-by from the resulting shortcut menu and then click on the desktop shortcut criteria.Any icon can be clicked and dragged to a different place on your desktop, for instance, to separate your favorite game from other desktop icons to help you easily find it.

Trình bày phép biến đổi tịnh tiến và quay quanh trục tọa độ? Hãy xác định ma trận chuyển đổi của các phép biến đổi sau :
H = trans(3,7,2). Rot(x,30).Rot(z,45)

Answers

Answer:B

Explanation: she she

Ten examples of an interpreter

Answers

Answer:

Some popular examples of today's interpreters are:

Interpreter of PythonInterpreter for RubyPerl performerInterpreter for PHPMATLAB UCSD Pascal

Explanation:

An interpreter executes the commands directly in an object code or a machine code, written in a program or a scripting language.

The Interpreter can be referred to as system software that can read and execute the programme instead of interpreting programmes. This interpretation includes high-level source code, pre-compiled programmes and scripts.

It is important to note that the interpreter translates programme by programme line, meaning that one statement is translated on one go. This feature makes it easy for programmers to check any line on debugging but slows the whole programme running time.

difference between cyberbullying ,cyber wellness and cyber safety​

Answers

cyber bullying is the use of electronic communication to bully a person, typically by sending messages of an intimidating or threatening nature.

cyber wellness is refers to the positive well-being of Internet users. It involves an understanding of online behaviour and awareness of how to protect oneself in cyberspace.

cybersafety is being secure online

Design a RomanNumerals class that takes a number within 1 to 10 and display the Roman numeral version of that number (I, II, III, IV, V … X). If the number entered by the user is outside the range of 1-10, the program should display an error message. Code a driver class RomanNumeralsApp to test the class by asking user to enter a number, creating an object of RomanNumerals and calling its methods getNumber, setNumber, convertNum, and displayResult to perform the described task.

Answers

Answer:

Explanation:

The following code is written in Java. It  creates a RomanNumberals class with all of the requested methods, including a convertNum method and displayResults method. The user is then asked to input a number within the main method. A RomanNumeral object is created, passed the userInput and all of it's methods are called for testing. A test output can be seen in the attached image below.

import java.util.Scanner;

class Brainly {

   public static void main(String[] args) {

       Scanner in = new Scanner(System.in);

       System.out.println("Enter a number: ");

       int number = in.nextInt();

       RomanNumerals romanNumeral1 = new RomanNumerals();

       romanNumeral1.setNumber(number);

       System.out.println("Test getNumber Method: " + romanNumeral1.getNumber());

       romanNumeral1.convertNumber();

       romanNumeral1.displayResult();

   }

}

class RomanNumerals {

   int number;

   String romanNumeral;

   public RomanNumerals() {

   }

   public int getNumber() {

       return number;

   }

   public void setNumber(int number) {

       this.number = number;

   }

   public void convertNumber() {

       switch (this.number) {

           case 1: romanNumeral = "I"; break;

           case 2: romanNumeral = "II"; break;

           case 3: romanNumeral = "III"; break;

           case 4: romanNumeral = "IV"; break;

           case 5: romanNumeral = "V"; break;

           case 6: romanNumeral = "VI"; break;

           case 7: romanNumeral = "VII"; break;

           case 8: romanNumeral = "VIII"; break;

           case 9: romanNumeral = "IX"; break;

           case 10: romanNumeral = "X"; break;

           default: System.out.println("Not a valid number"); break;

       }

   }

   public void displayResult() {

       System.out.println("Number " + this.number + " is represented as " + this.romanNumeral);

   }

}

A network technician is planning to update the firmware on a router on the network. The technician has downloaded the file from the vendor's website. Before installing the firmware update, which of the following steps should the technician perform to ensure file integrity?

a. Perform antivirus and anti-malware scans of the file.
b. Perform a hash on the file for comparison with the vendor’s hash.
c. Download the file a second time and compare the version numbers.
d. Compare the hash of the file to the previous firmware update.

Answers

Answer: B. Perform a hash on the file for comparison with the vendor’s hash.

Explanation:

Before installing the firmware update, the step that the technician should perform to ensure file integrity is to perform a hash on the file for comparison with the vendor’s hash.

Hashing refers to the algorithm that is used for the calculation of a string value from a file. Hashes are helpful in the identification of a threat on a machine and when a user wants to query the network for the existence of a certain file.

x-1; while x ==1 disp(x) end, then the result a. infinity or b. (1) ​

Answers

Answer:

1 is the answer because ur trying to trick us

Explanation:

6.23 LAB: Convert to binary - functions Instructor note: This is a lab from a previous chapter that now requires the use of a function. If you weren't able to solve it before, think of this as a new opportunity. Write a program that takes in a positive integer as input, and outputs a string of 1's and 0's representing the integer in binary. For an integer x, the algorithm is: As long as x is greater than 0 Output x % 2 (remainder is either 0 or 1) x = x // 2 Note: The above algorithm outputs the 0's and 1's in reverse order. You will need to write a second function to reverse the string. Ex: If the input is: 6 the output is: 110 Your program must define and call the following two functions. The function integer_to_reverse_binary() should return a string of 1's and 0's representing the integer in binary (in reverse). The function reverse_string() should return a string representing the input string in reverse. def integer_to_reverse_binary(integer_value) def reverse_string(input_string)

Answers

Answer:

The program in Python is as follows:

import math

def integer_to_reverse_binary(integer_value):

   remainder = ""

   while integer_value>=1:

       remainder+=str(integer_value % 2)

       integer_value=math.floor(integer_value/2)

   reverse_string(remainder)

def reverse_string(input_string):

   binaryOutput=""

   for i in range(len(input_string)-1,-1,-1):

       binaryOutput = binaryOutput + input_string[i]

   print(binaryOutput)

integer_value = int(input("Enter a Number : "))

integer_to_reverse_binary(integer_value)

Explanation:

This imports the math module

import math

This defines the integer_to_reverse_binary function

def integer_to_reverse_binary(integer_value):

This initializes the remainder to an empty string

   remainder = ""

This loop is repeated while the integer input is greater than or equal to 1

   while integer_value>=1:

This calculates the remainder after the integer value is divided by 2

       remainder+=str(integer_value % 2)

This gets the floor division of the integer input by 2

       integer_value=math.floor(integer_value/2)

This passes the remainder to the reverse_string function

   reverse_string(remainder)

The reverse_string function begins here

def reverse_string(input_string):

This initializes the binaryOutput to an empty string

   binaryOutput=""

This iterates through the input string i.e. the string of the remainders

   for i in range(len(input_string)-1,-1,-1):

This reverses the input string

       binaryOutput = binaryOutput + input_string[i]

This prints the binary output

   print(binaryOutput)

The main begins here

This gets input for integer_value

integer_value = int(input("Enter a Number : "))

This passes the integer value to the integer_to_reverse_binary function

integer_to_reverse_binary(integer_value)

Unchecked exceptions require you surround the code that might throw such an exception with a try block or you must use a throws statement at the end of the method signature. Failure to do one of these two things will result in a compile error.

a. True
b. False

Answers

Answer:

b. False

Explanation:

False, unchecked exceptions do not cause compilation errors and do not require try/catch blocks or throws statements. However, although they are not required it is good programming to include them in order to handle any exceptions that may arise. If you do not include a proper way to handle such an exception the program will still run but may run into an exception during runtime. If this occurs then the entire program will crash because it does not know how to handle the exception since you did not provide instructions for such a scenario.

which feature of organisations to manage needs to know about to build and use information system successfully

Answers

The correct answer to this open question is the following.

The feature of organizations to manage needs to know about to build and use information system successful is the following.

Managers of successful organizations should know that companies have hierarchies and different structures in which these companies are organized.

Every company use systems and procedures that could be specialized to the degree the company requires. For that system to function, they have to be perfectly interconnected to all the areas of the company. The goal: to maximize efficiency and accomplish the goals.

Systems and procedures should take into consideration the culture and diversity of the workplace. There are interest groups in every organization that have special characteristics and requirements that have to be taken into consideration to create a much better system.

Good managers must be aware of these elements, and the different roles, goals, management styles, tasks, incentives, and departmental structure of the company so the system can better serve the purpose of the entire organization.

what's the difference between pseudo code and natural language​

Answers

Answer:

The pseudo-code describes steps in an algorithm or another system in plain language. Pseudo-Code is often designed for human reading rather than machine reading with structural conventions of a normal language of programming.

Natural languages consist of phrases, usually declarative phrases, with a sequence of information.

Explanation:

Pseudo-Code is often designed for human reading rather than machine reading with structural conventions of a normal language of programming. It usually omits information that is essential to the understanding of the algorithm by the machine, for example, variable declarations and language code.Easily human, but not machines, use the natural languages (like English).Natural languages also are creative. Poetry, metaphor, and other interpretations are permitted. Programming permits certain style differences, but the significance is not flexible.The aim of using pseudo-code is to make it easier for people to comprehensibly than standard programming language code and to describe the key principles of an algorithm efficiently and environmentally independently. It is usually used for documenting software and other algorithms in textbooks and scientific publications.

An infographic displays the relative frequencies of the 100 most common emojis used in text messaging for each of the last 12 months. Which of the following conclusions cannot be drawn from such a representation of emoji usage?
a. You can determine the growth or decline in popularity of a particular emoji.
b. You can determine what percentage of text messages contains a particular emoji.
c. You can determine how long the most popular emoji has held the #1 position.
d. You can determine the average age of emoji users based on emoji use.

Answers

Answer:

d. you can determine the average age of emoji users based on emoji use.

Explanation:

The infographic displays 100 most common emoji used in text messaging. This information can be used to determine percentages of text message which contains particular emoji. This details can not determine the age of emoji user based in emoji use.

Suppose users share a 3 Mbps link. Also suppose each user requires 150 kbps when transmitting, but each user transmits only 10 percent of the time. (See the discussion of packet switching versus circuit switching in Section 1.3.)
a. When circuit switching is used, how many users can be supported?
b. For the remainder of this problem, suppose packet switching is used. Find the probability that a given user is transmitting.
c. Suppose there are 120 users. Find the probability that at any given time, exactly n users are transmitting simultaneously. (Hint: Use the binomial distribution.)
d. Find the probability that there are 21 or more users transmitting simultaneously.

Answers

Answer:

a) 20 users

b) 0.1  or 1/10

c) P ( X = n )   =   [tex]^{120}C_{n} ( 0.10 )^n (0.9)^{120-n}[/tex]

d) 0.008

Explanation:

Given data:

Link shared by users = 3 Mbps

each user requires ; 150 kbps

percentage transmitted by each user = 10%

a) Determine the number of users can be supported

number of users = 3 Mbps / 150 kbps = 3000 / 150 = 20 users

b) P( user is transmitting )

given that percentage transmitted by each user = 10%

since packet switching is used ; P ( user is transmitting ) = 10% = 0.1

c) P ( n users are transmitting simultaneously )

let the number of users ( i.e. N ) = 120

number transmitting = n

P ( user is transmitting ) = 0.10

using Binomial distribution

P ( X = n ) = [tex]^{N}[/tex]Cₙ ( P )ⁿ ( 1 - P )^[tex]^{N-n}[/tex]

                = [tex]^{120}C_{n} ( 0.10 )^n (0.9)^{120-n}[/tex]

d) P( X ≥ 21 transmitting simultaneously )

P ( X = n ) = [tex]^{120}C_{n} ( 0.10 )^n (0.9)^{120-n}[/tex]

Therefore ; P( X ≥ 21 ) = 1 - P( X ≤ 20 )

                                   = 1 - BINOMDIST(20,120,0.1,1)  ( excel function )

∴ P( X ≥ 21 ) = 1 - 0.992059 ≈ 0.008

Write a single Python regular expression for each of the following. Note: For each problem, you must use only ONE regular expression.
Matches a string that has both the substring dog and cat in the string in either order. For instance, both of the following strings match: 'The dog chased the cat' and 'xxcatxxdogxx'.

Answers

Matches a string that has both the substring dog and car in the string in either order

Given that EAX contains FFFF80C0h, which of the following would be true after executing the CWD instruction?

a. AX=FFFFh, DX=80C0h
b. EDX=FFFFFFFFh, EAX=FFFF80C0h
c. DX=FFFFh, AX=80C0h
d. cannot be determined

Answers

Answer:

c. DX=FFFFh, AX=80C0h

Explanation:

CWD instruction set all bits in DX register with same sign as in AX register. The effect is to create a 32 bit sign result. This will have same integer value as of 16 bit.

Which orientation style has more height than width?

Answers

Answer:

"Portrait orientation" would be the correct answer.

Explanation:

The vertical picture, communication as well as gadget architecture would be considered as Portrait orientation. A webpage featuring portrait orientation seems to be usually larger than large containing lettering, memo abases as well as numerous types of content publications.One such volume fraction also becomes perfect for impressionism depicting an individual from either the top.

Thus the above is the correct answer.

What is a fruitful function? Explain with help of programming example?
plz

Answers

These are the functions that return a value after their completion. A fruitful function must always return a value to where it is called from. A fruitful function can return any type of value may it be string, integer, boolean, etc. It is not necessary for a fruitful function to return the value of one variable, the value to be returned can be an array or a vector. A fruitful function can also return multiple values.

Which report views shows how the report will look in print and enable you to make modifications to the print settings?

Answers

Answer:

Print preview

Explanation:

In Microsoft access the report view that will show you an accurate picture of what your print out will look like before it is printed is : Print preview

Microsoft access is a relational database that allows the usage and storage of information in and organization

HEYYY! you're probably a really fast typer can you please type this for me! i tried copying and pasting it but it wouldn't let me!!! sooo can you please be a dear and kindly type it for me ^^

what i want you to type is directly in the image so please type exactly that

i dunno what subject this would be under so i'll just put it in any

Answers

Answer:

here you go. wish you a great day tomorrow.

and in fact,computer science is somewhat the right category

Abstract art may be - and may seem like - almost anything. This because, unlike the painter or artist who can consider how best they can convey their mind using colour or sculptural materials and techniques. The conceptual artist uses whatever materials and whatever form is most suited to putting their mind across - that would be anything from the presentation to a written statement. Although there is no one kind or structure employed by abstract artists, from the late 1960s specific tendencies emerged.

Explain in details:
(i) Deadlock
(ii) File manager
(iii) Process
(iv) Multiprogramming
(v) Software Classification
(vi) Virtual memory

Answers

Answer and Explanation:

Deadlock occurs when two operating systems on the same computer are hindering each other's execution, getting blocked, waiting for each one to run first. This can happen when a preemption has not occurred, when a mutual exclusion has occurred, or when one of the systems causes the other to not execute.

File manager is software that allows a computer user to create directories and organize files inside and outside of them.

Process is the term used to determine the functioning of computer software. When a software is started, it uses its own programming code to perform a specific activity.

Multiprogramming is the term used for the moment when an operating system allows the user to run more than one software at the same time. For this to happen, the computer needs to have a high processing capacity, to handle the effort of running several software simultaneously.

Software Classification is the process that determines the composition and different aspects that make up a software. In this way, it is possible to understand the usefulness and programming of this software.

Virtual memory is the use of secondary memory for caching. This allows the user to share files more securely and quickly, in addition to alleviating the problems that limited memory presents.

is a collection of information stored under a single name ​

Answers

[tex]\boxed{ File }[/tex] is a collection of information stored under a single name.

[tex]\bold{ \green{ \star{ \orange{Mystique35}}}}⋆[/tex]

Answer:

Explanation:A collection of information that is stored on a computer under a single name, for example a text document, a picture, or a program. The association between a file and the program that created the file. Displays the contents of the current folder or library.

Làm thế nào để hack mật khẩu trên 1 trang web

Answers

Heuwieieididbzhdysudududhhxydydy
Trang web Hacker mật khẩu
Password Hacker hoặc Cracker đề cập đến cá nhân cố gắng bẻ khóa từ, cụm từ hoặc chuỗi ký tự bí mật được sử dụng để truy cập vào dữ liệu được bảo mật. Hack mật khẩu thường được gọi là bẻ khóa mật khẩu. Trong trường hợp chính hãng, kẻ tấn công mật khẩu cố gắng khôi phục mật khẩu từ dữ liệu được truyền qua hoặc được lưu trữ trên máy tính.

Quản trị viên hệ thống có thể sử dụng hack mật khẩu như một chiến thuật phòng ngừa, để giúp người dùng hợp pháp lấy lại mật khẩu đã quên. Bên cạnh đó, nó cũng giúp họ dễ dàng theo dõi mật khẩu bị tấn công để sửa đổi chúng nhằm tăng tính bảo mật.

Tội phạm mạng và những kẻ lừa đảo trực tuyến hack mật khẩu để có được quyền truy cập vào một hệ thống an toàn. Mục đích của họ là độc hại và nó thường xoay quanh việc kiếm tiền thông qua các phương tiện bất hợp pháp.

Làm thế nào để Crack và Hack mật khẩu?
Về cơ bản, có hai phương pháp được sử dụng để hack mật khẩu - một là phương pháp vũ phu và phương pháp kia là bằng cách đoán.

Brute Force: Trong phương pháp brute force, một hacker có mật khẩu cố gắng nhập mọi tiềm năng. Hãy thử cWatch ngay hôm nay! trình tự mật khẩu để tìm ra mật khẩu. Cho đến nay, phương pháp này là phương pháp hiệu quả để kẻ tấn công mật khẩu kết luận về hàm băm mật khẩu, hoặc tính toán toán học hoặc thuật toán, được sử dụng để mã hóa hoặc mã hóa dữ liệu mật khẩu.

Đoán: Trong phương pháp đoán, một hacker mật khẩu có thể sử dụng thông tin cá nhân của chủ sở hữu mật khẩu để tìm ra mật khẩu. Ngày sinh, vật nuôi, người thân hoặc thông tin khác của chủ sở hữu mật khẩu đều được sử dụng để đoán mật khẩu chính xác.

How do u create a blank line between two lines in a document

Answers

Answer: Press enter at the end of the line.

Explanation:

If you press enter at the end of the line or sentence, it will start a new space underneath your line or sentence.

What is scrum of scrum

Answers

Answer: scrum

Explanation:

Answer:

The Scrum of Scrums is a time-boxed session in which a representative from each Team shares high-level updates on their respective team's work and articulates their progress and impediments. Ideally, it should follow the various teams' Daily Stand-ups, so that the latest information is communicated.

hope that helps bby<3

is joining Together as a group to use a specific product more efficiently

Answers

[tex]\sf\purple{Collaborative \:consumption}[/tex] is joining together as a group to use a specific product more efficiently.

[tex]\bold{ \green{ \star{ \orange{Hope\:it\:helps.}}}}⋆[/tex]

what is web browser ?​

Answers

Answer:

A web browser, or simply "browser," is an application used to access and view websites.

what is the Is option that prints the author of a file​

Answers

Answer:

Print.. is your answer...

We will find an video named????
Help us and select once name.
Complete: B__in___t

Answers

Beint cause its cool yea yea
Beinlit (pronounced ben-in-lit)
Other Questions
What does the digit 8 represent in 687,413?Eight hundred thousandEight thousandEight hundredO Eighty thousand "health is more precious than wealth" justify the statement Assignment1Which is rational?a. 64b. 17C. 67.714819...22. Which is irrational?a. 75.106c. 101Identify each of the following as Rational or Irrational.3 -424 65.4279598166257 57.013013..818.44333777...9-139.042410 If you had a sequence of DNA that was ATGCCATTGC, what would be the complementary DNA Sequence? Which expression is the same as 1 ten, 3 ones, and 9 thousandths?Choose 1 answer: Please help Ill give brainliest A nation whose interest rate is rising more rapidly than interest rates in other nations can expect the international value of its currency to appreciate. name hydrogen ionwhat the symbolotom What were two reasons that Britain was opposed to the Soviet Union's occupation of Poland after World War II? "Section fourteen provides that, if any negro, mulatto, or other person of color, shall intrude himself into any religious or public vehicle set apart for the exclusive accommodation of white people, he shall be deemed to be guilty of a misdemeanor, and upon conviction, shall be sentenced to stand in the pillory for one hour, or be whipped, not exceeding thirty-nine stripes, or both, at the discretion of the jury; nor shall it be lawful for any white person to intrude himself into any religious or other public assembly of colored persons, or into any railroad car or other public vehicle, set apart for the exclusive accommodation of persons of color, under the same penalties."is example of ? Select the graph that would represent the best presentation of the solution set.|xl > 5 Part B: Collins also does part-time yard work. The ratio of the number of hours Collins works to the money he earns in dollars is 1:7. Create a table to show the money earned by Collins for 5, 6, and 8 hours of doing yard work. (3 points) Identify whether the following transactions are primary market or secondary market transactions. a. You buy 855 shares of ABC Co. through your brokerage account. b. You buy $5,801 of XYZ Co. bonds from another investor. c. M Which two lines in this excerpt from Shakespeare's Romeo and Juliet foreshadow the tragic fate of Romeo and Jullet?FRIAR LAURENCE: So smile the heavens upon this holy act,That after hours with sorrow chide us not!ROMEO: Amen, amen! but come what sorrow can,It cannot countervail the exchange of joyThat one short minute gives me in her sight:Do thou but close our hands with holy words,Then love-devouring death do what he dare;It is enough I may but call her mine.FRIAR LAURENCE: These violent delights have violent endsAnd in their triumph die, like fire and powder,Which as they kiss consume: the sweetest honeyIs loathsome in his own deliciousnessAnd in the taste confounds the appetite:Therefore love moderately; long love doth sO;Too swift arrives as tardy as too slow.Next is solar energy reliable and powerful enough to be used in home or business If Devon took 20 min to drive 24 km, what was his R.O.C.? Answer in decimals. Just doing a experiment.......................... for 21 points PLS HELP! I NEED TO FIND THE SURFACE AREA OF THIS CYLINDER! PLS PROVIDE A STEP BY STEP EXPLANATION! Which of the following are not polynomials? O A. x2 +x+1 O B. X-2 + x + 1 am. x + V3x+1 OD. 3+x+1 E. x + 0x2 + 2x + 2 A car on the roller coaster begins with 0j of kinetic energy and 12,928j of potential energy and finishes the track with 3,715j of potential energy. How much kinetic energy dose the car finish with????