Solution :
ENTITY 1 CARDINALITY RATIO ENTITY 2
1. Student 1 to many Social security card
A student may have more than one
social security card (legally with the
same unique social security number),
and every social security number belongs
to a unique.
2. Student Many to Many Teacher
Generally students are taught by many
teachers and a teacher teaches many students.
3.ClassRoom Many to Many Wall
Do not forget that the wall is usually
shared by adjacent rooms.
4. Country 1 to 1 Current President
Assuming a normal country under normal
circumstances having one president at a
time.
5. Course Many to Many TextBook
A course may have many textbooks and
text book may be prescribed for different
courses.
6. Item Many to Many Order
Assuming the same item can appear
in different orders.
7. Student Many to Many Class
One student may take several classes.
Every class usually has several students.
8. Class Many to 1 Instructor
Assuming that every class has a unique
instructor. In case instructors were allowed
to team teach, this will be many-many.
9. Instructor 1 to 1 Office
Assuming every instructor has only one
office and it is not shared. In case of offices
shared by 2 instructors, the relationship
will be 2-1. Conversely, if any instructor has a joint
appointment and offices in both departments,
then the relationship will be 1-2. In a very general
case, it may be many-many.
10. E-bay Auction item 1-Many E-bay bid
1 item has many bids and a bid is unique
to an item.
Write a program that reads in the size of the side of a square and then prints a hollow square of that size out of asterisks and
blanks. Your program should work for squares of all side sizes between 1 and 20. For example, if your program reads a size of 5, it
should print
Answer:
Explanation:
#include <iostream>
using std::cout;
using std::endl;
using std::cin;
int main()
{
int side, rowPosition, size;
cout << "Enter the square side: ";
cin >> side;
size = side;
while ( side > 0 ) {
rowPosition = size;
while ( rowPosition > 0 ) {
if ( size == side || side == 1 || rowPosition == 1 ||
rowPosition == size )
cout << '*';
else
cout << ' ';
--rowPosition;
}
cout << '\n';
--side;
}
cout << endl;
return 0;
}
You have recently subscribed to an online data analytics magazine. You really enjoyed an article and want to share it in the discussion forum. Which of the following would be appropriate in a post?
A. Including an advertisement for how to subscribe to the data analytics magazine.
B. Checking your post for typos or grammatical errors.
C. Giving credit to the original author.
D. Including your own thoughts about the article.
Select All that apply
Answer:
These are the things that are would be appropriate in a post.
B. Checking your post for typos or grammatical errors.
C. Giving credit to the original author.
D. Including your own thoughts about the article.
Explanation:
The correct answer options B, C, and D" According to unofficial online or internet usage it is believed that sharing informative articles is a reasonable use of a website forum as much the credit goes back to the actual or original author. Also, it is believed that posts should be suitable for data analytics checked for typos and grammatical errors.
A coin is tossed repeatedly, and a payoff of 2n dollars is made, where n is the number of the toss on which the first Head appears. So TTH pays $8, TH pays $4 and H pays $2. Write a program to simulate playing the game 10 times. Display the result of the tosses and the payoff. At the end, display the average payoff for the games played. A typical run would be:
Answer:
Explanation:
The following code is written in Java. It creates a loop within a loop that plays the game 10 times. As soon as the inner loop tosses a Heads (represented by 1) the inner loop breaks and the cost of that game is printed to the screen. A test case has been made and the output is shown in the attached image below.
import java.util.Random;
import java.util.Scanner;
class Brainly {
public static void main(String[] args) {
int count = 0;
int loopCount = 0;
while (loopCount < 10) {
while (true) {
Random rand = new Random();
int coinFlip = rand.nextInt(2);
count++;
if (coinFlip == 1) {
System.out.println("Cost: $" + 2*count);
count = 0;
break;
}
loopCount++;
}
}
}
}
Can we update App Store in any apple device. (because my device is kinda old and if want to download the recent apps it aint showing them). So is it possible to update???
Please help
Answer:
For me yes i guess you can update an app store in any deviceI'm not sure×_× mello ×_×Spending plans serve as a tool to analyze program execution, an indicator of potential problems, and a predictor of future program performance. True False
Answer:
True
Explanation:
Spending plans serve as a tool to analyze program execution, an indicator of potential problems, and a predictor of future program performance.
Database multiple-choice question don't bs pls
Which of the following is not a common factor for database management system selection?
a. Cost
b. Features and tools
c. Software requirements
d. Hardware requirements
e. All of the above
f. None of the above
(D and F are wrong)
Answer:
f. None of the above
Explanation:
Considering the available options, the right answer is option F "None of the above."
Common factors for database management system selection are the following:
1. Cost: various DBMS vendors have different pricing, hence, interested buyers will consider the price before selections
2. Features and Tools: different types of DBMS have varied features and tools in carrying out the work.
3. Software requirements: there are various software requirements in various DBMS, such as encryption support, scalability, application-level data recovery, etc.
4. Hardware requirement: various DBMS vendors have different hardware requirements to consider, such as sizeable RAM, CPU value, etc.
Hence, in this case, the correct answer is option F.
command create database in oracle database ::((
Answer:
kdkskskiisidiodoosooddodod
For each of the following memory accesses indicate if it will be a cache hit or miss when carried out in sequence as listed. Also, give the value of a read if it can be inferred from the information in the cache.
Operation Address Hit? Read value (or unknown)
Read 0x834
Write 0x 836
Read 0xFFD
Answer:
Explanation:
Operation Address Hit? Read Value
Read 0x834 No Unknown
Write 0x836 Yes (not applicable)
Read 0xFFD Yes CO
information technology please help
Answer:
Read Technical Books. To improve your technical skills and knowledge, it's best to read technical books and journals. ...
Browse Online Tutorials. ...
Build-up online profile. ...
Learn new Tools. ...
Implement what you learned. ...
Enrich your skillset. ...
Try-out and Apply.
How can an Outlook user search for contacts? Check all that apply.
the Search bar located above the list of contacts
the Search People bar on the Find command group
the Search People located on the People navigation icon
CTL + E to activate the search contacts box
advanced Find under the Search tab
the options menu in the backstage view
Answer: the Search bar located above the list of contacts.
the Search People bar on the Find command group.
the Search People located on the People navigation icon.
CTL + E to activate the search contacts box.
advanced Find under the Search tab.
Explanation:
An Outlook user can search for contacts through the following ways:
• the Search bar located above the list of contacts.
• the Search People bar on the Find command group.
• the Search People located on the People navigation icon.
• CTL + E to activate the search contacts box.
• advanced Find under the Search tab.
Therefore, the correct options are A, B, C, D and E.
A retail department store is approximately square, 35 meters (100 feet) on each side. Each wall has two entrances equally spaced apart. Located at each entrance is a point-of-sale cash register. Suggest a local area network solution that interconnects all eight cash registers. Draw a diagram showing the room, the location of all cash registers, the wiring, the switches, and the server. What type of wiring would you suggest?
Answer:
The use of twisted pair cable ( category 5e/6 ) to connect the computers on each register and also the use of switches to connect each register to the server
Explanation:
The local area network ( LAN ) solution that will be used to interconnect all the POS registers is ; The use of twisted pair cable ( category 5e/6 ) to connect the computers on each register and also the use of switches to connect each register to the server .
This is because category 5e/6 twisted pair cable has a data rate transfer of up to 10 Mbps and it is best used for LAN connections
while The function of the three switches is to connect each cash register to the the central server been used .
attached below is a schematic representation
Write a recursive function that returns 1 if an array of size n is in sorted order and 0 otherwise. Note: If array a stores 3, 6, 7, 7, 12, then isSorted(a, 5) should return 1 . If array b stores 3, 4, 9, 8, then isSorted(b, 4) should return 0.
Answer:
The function in C++ is as follows:
int isSorted(int ar[], int n){
if ([tex]n == 1[/tex] || [tex]n == 0[/tex]){
return 1;}
if ([tex]ar[n - 1][/tex] < [tex]ar[n - 2][/tex]){
return 0;}
return isSorted(ar, n - 1);}
Explanation:
This defines the function
int isSorted(int ar[], int n){
This represents the base case; n = 1 or 0 will return 1 (i.e. the array is sorted)
if ([tex]n == 1[/tex] || [tex]n == 0[/tex]){
return 1;}
This checks if the current element is less than the previous array element; If yes, the array is not sorted
if ([tex]ar[n - 1][/tex] < [tex]ar[n - 2][/tex]){
return 0;}
This calls the function, recursively
return isSorted(ar, n - 1);
}
HELP ASAP PLZZZZZ
Question 35(Multiple Choice Worth 5 points)
(03.01 LC)
To write a letter to your grandma using Word Online, which document layout should you choose?
APA Style Paper
General Notes
New Blank Document
Table of Contents
Answer:
third one
Explanation:
To write a letter to your grandma using Word Online, you should choose the "New Blank Document" layout.
What is Word?Microsoft Word is a word processing application. It is part of the Microsoft Office productivity software suite, along with Excel, PowerPoint, Access, and Outlook.
To write a letter to your grandmother in Word Online, select the "New Blank Document" layout. This will open a blank page on which you can begin typing your letter.
The "APA Style Paper" layout is intended for academic papers and includes formatting guidelines and section headings that a personal letter may not require.
In Word Online, "General Notes" is not a document layout option.
The "Table of Contents" feature generates a table of contents based on the headings in your document, but it is not a document layout option.
Thus, the answer is "New Blank Document".
For more details regarding Microsoft word, visit:
https://brainly.com/question/26695071
#SPJ2
To connect several computers together, one generally needs to be running a(n) ____ operating system
a. Network
b. Stand-alone
c. Embedded
d. Internet
Answer. Network
Explanation:
How many ways are there to arrange the letters in the word ALGORITHMS? Note, the letter arrangement does not have to spell a word in the dictionary, but the new word must contain all the letters and each letter can be used only once.
there are ten letters in the word, so for the first position we can choose out of 10 option.
no matter wich specific option we choose, we will have 9 letters left for the 2nd letter.
and 8 for the third place.
...
when we will have used up 9 of 10 letters, there will be only one option for the last place.
the number of possible decision-paths is therefore given by this expression:
10*9*8*7*6*5*4*3*2*1
wich is 3,628,800
there are quite a few ways to rearrange 10 letters
The sorting method which commands entries in a going to head predicated on each character without regard to space as well as punctuation, therefore there are 3628800 ways.
The word 'ALGORITHMS' has 10 letters. There is no repeated letter so, the first Letter can hold 10 places if we start taking one letter at a time. The second can then hold nine positions, the third can hold eight, and so on.So, as [tex]\bold{ 10\times 9 \times 8.... \times 3 \times 2 \times 1 = 362,8800}[/tex] ways, we have such a total number of ways.
Learn more:
brainly.com/question/17276660
Sophia is putting together a training manual for her new batch of employees.Which of the following features can she use to add a document title at the top of each page?
A) Heading style
B) Page margin
C) References
D) Header and Footer
Answer:
A heading style to add a document title
The feature can she use to add a document title at the top of each page is - Heading style. Therefore option A is the correct resposne.
What are Header and Footer?A footer is a text that is positioned at the bottom of a page, whereas a header is text that is positioned at the top of a page. Usually, details about the document, such as the title, chapter heading, page numbers, and creation date, are inserted in these spaces.
A piece of the document that appears in the top margin is called the header, while a section that appears in the bottom margin is called the footer. Longer papers may be kept structured and made simpler to read by including more information in the headers and footers, such as page numbers, dates, author names, and footnotes. Each page of the paper will have the header or footer text you input.
To read more about Header and Footer, refer to - https://brainly.com/question/20998839
#SPJ2
Select the correct statement(s) regarding 4B5B encoding.
a. 4B5B is used to map four codeword bits into a five bit data word
b. 4B5B information bit rate is 80% of the total (information plus overhead) bit rate
c. 4B5B information bit rate is 20% of the total (information plus overhead) bit rate
d. all statements are correct
Answer:
b. 4B5B information bit rate is 80% of the total information plus overhead bit rate.
Explanation:
4B5B bit rate encoding means there is 80% of the bit rate which included all the information plus the overheads. There is 20% of lack in bit rate due to encoding code words which converts data into smaller bits.
Illustrate why Sally's slide meets or does not meet professional expectations?
Describe all the things Sally can improve on one of her slides?
Suggest some ways Sally can learn more PowerPoint skills.
The correct answer to this open question is the following.
Unfortunately, you did not provide any context or background about the situation of Sally and the problem with her slides. We do not know it, just you.
However, trying to be of help, we can comment on the following general terms.
When someone does not meet professional expectations, this means that this individual did not prepare her presentation, lacked technical skills, did not included proper sources, or missed the proper visual aids to make the presentation more attractive and dynamic.
What Sally can improve about her slides is the following.
She can design a better structure for the presentation to have more congruence.
Sally has to clearly establish the goal or goals for her presentation.
She has to add many visuals instead of plain text. This way she can better capture the interest of her audience.
If she can use more vivid colors instead of pale or dark ones, that would be best.
No paragraphs unless necessary. She better uses bullet points.
Take care of the tone of her voice. During her practice, she can record her vice to check how it sounds.
now now now now mowewweedeeee
Answer:
15
Inside the type declaration, you specify the maximum length the entry can be. For branch, it would be 15.
I can't seem to type the full "vc(15)" phrase because brainly won't let me.
/*
Given a 2D board containing 'X' and 'O', capture all regions surrounded by 'X'.
A region is captured by flipping all 'O's into 'X's in that surrounded region .
For example,
X X X X
X O O X
X X O X
X O X X
After running your function, the board should be:
X X X X
X X X X
X X X X
X O X X
*/
public class Solution {
// This algorithm cannot solve the large test set
public void solve(char[][] board) {
// Start typing your Java solution below
// DO NOT write main() function
int rows = board.length;
if(rows == 0) return;
int cols = board[0].length;
for(int i = 0; i < cols; i++) {
// check first row's O
if(board[0][i] == 'O') {
// change it to other symbol
board[0][i] = '#';
dfs(board, 0, i);
}
// check the last row
if(board[rows - 1][i] == 'O') {
board[rows - 1][i] = '#';
dfs(board, rows - 1, i);
}
}
for(int i = 0; i < rows; i++) {
// check first col
if(board[i][0] == 'O') {
board[i][0] = '#';
dfs(board, i, 0);
}
// check last col
if(board[i][cols - 1] == 'O') {
board[i][cols - 1] = '#';
dfs(board, i, cols - 1);
}
}
// change O to X
changeTo(board, 'O', 'X');
// change # to O
changeTo(board, '#', 'O');
return;
}
public void dfs(char[][] board, int row, int col) {
// check up
if(row > 0) {
if(board[row - 1][col] == 'O') {
board[row - 1][col] = '#';
dfs(board, row - 1, col);
}
}
// check left
if(col > 0) {
if(board[row][col - 1] == 'O') {
board[row][col - 1] = '#';
dfs(board, row, col - 1);
}
}
// check right
if(row < board.length - 1) {
if(board[row + 1][col] == 'O') {
board[row+1][col] = '#';
dfs(board, row+1, col);
}
}
// check down
if(col < board[0].length - 1) {
if(board[row][col+1] == 'O'){
board[row][col+1] = '#';
dfs(board, row, col+1);
}
}
return;
}
public void changeTo(char[][] board, char from, char to) {
for(int i = 0; i < board.length; i++) {
for(int j = 0; j < board[0].length; j++) {
if(board[i][j] == from) {
board[i][j] = to;
}
}
}
return;
}
}
LAB: Count multiples (EO)
Complete a program that creates an object of the Count class, takes three integers as input: low, high, and x, and then calls the countMultiples() method. The countMultiples() method then returns the number of multiples of x between low and high inclusively.
Ex: If the input is:
1 10 2
countMutiples() returns and the program output is:
5
Hint: Use the % operator to determine if a number is a multiple of x. Use a for loop to test each number between low and high.
Note: Your program must define the method:
public int countMultiples(int low, int high, int x)
Count.java
1 import java.util.Scanner;
2
3 public class Count {
4
5 public int countMultiples(int low, int high, int x) {
6 /* Type your code here. */
7
8 }
9
10 public static void main(String[] args) {
11 Scanner scnr = new Scanner(System.in);
12 /* Type your code here. */
13 }
14)
15
Following are the Java Program to the given question:
import java.util.Scanner; //import package for user-input
public class Count //defining a class Count
{
public static int countMultiples(int low,int high,int x)//defining a method countMultiples that takes three integer parameters
{
int c=0,i; //defining integer variables that hold value
for(i=low;i<=high;i++)//defining loop that iterates value between low and high
{
if(i%x==0)//defining if block that uses % operator to check value
{
c+=1; //incrementing c value
}
}
return c; //return c value
}
public static void main(String[] args)//main method
{
int l,h,x;//defining integer variable
Scanner scnr=new Scanner(System.in); //creating scanner class object
l=scnr.nextInt(); //input value
h=scnr.nextInt();//input value
x=scnr.nextInt();//input value
System.out.println(countMultiples(l,h,x)); //calling method and print its value
}
}
Output:
Please find the attached file.
Program Explanation:
Import package.Defining a class "Count", and inside the class two method "countMultiples and main method" is declared.In the "countMultiples" method three integer parameter that are "low, high, and x".Inside this method a for loop is declared that uses the parameter value and use conditional statement with the % operator and check and return its values.Inside the main method three integer variable is declared that uses the scanner class to input the value and pass to the method and print its calculated value.Learn more:
brainly.com/question/16106262
Please help urgently
how much is this worth in dollars
Answer:
This is worth 50 dollars.
Explanation:
١ - one
٢ - two
٣ - three
٤ - four
٥ - five
٦ - six
٧ - seven
٨ - eight
٩ - nine
٠ - zero
What you see above is the ten digits in Arabic.
Both 5 (٥) and 0 (٠) appear here, thus representing 50.
What type of device is a computer? Where does it use
Answer:A computer is an electronic device that manipulates information, or data. It has the ability to store, retrieve, and process data. You may already know that you can use a computer to type documents, send email, play games, and browse the Web.
Many companies possess valuable information they want to guard closely (ex. new chip design, competition plans, legal documents). Personal computer hard disks these days are full of important photos, videos, and movies. As more and more information is stored in computer systems, the need to protect it is becoming increasingly important. Which of the following statements is incorrect with respect to Security?
a. security has many facets; three of the more important ones are: the nature of the threats, the nature of intruders, and cryptography
b. data integrity means that unauthorized users should not be able to modify any data without the owner's permission
c. a common category of intruders are driven by determined attempts to make money; for example: bank programmers attempting to steal from the bank they work for
d. in addition to threats caused by malicious users, data can be lost by accident; for example: rats gnawing backup tapes
Answer: D. in addition to threats caused by malicious users, data can be lost by accident; for example: rats gnawing backup tapes
Explanation:
Data security is essential to protecting unwanted people from having access to ones data, malicious attack should also be prevented and unusual behavior should be monitored.
Data security has many facets such as threat nature, the nature of intruders, and cryptography. Furthermore, data integrity means that unauthorized users should not be able to modify any data without the owner's permission. Also, the statement that a common category of intruders are driven by determined attempts to make money; for example: bank programmers attempting to steal from the bank they work for is correct.
It should be no noted that rats gnawing backup tapes cannot prevent data loss. Therefore, the correct option is D
Can anyone decipher these? There a bit random. Maybe binary but if there are other ways please include them.
Answer:
Explanation:
so this is what "format" is about, it's saying what do the ones and zeros represent. b/c the bits can represent lots of different things , like letters with ascii code , and that's got several types. some are 8 bits, some are 16 bits, the questions you've shown are in groups of 5 which is really not a "thing" in binary, it's always by twos, without some type of "frame work" around the bits, we won't know what they represent, if that is helping? the important part is what is the "frame work" that these bits are in.
all of your questions seem to have some "art" thing going on, they make some kinda of binary artwork, for what they are saying, that's not what's important. Other than if they form palindromes, maybe that's what the questions are really about, how these do from palindromes, that is, they read the same backwards as forwards... I know.. why would anyone read backwards.. but a computer can do that pretty quickly, sooo sometimes to check, it will read forwards and backwards.. but when there is a palindrome, the computer is "confused"
this is also a big big part of "typing" not like on a keyboard but when you program, and you say that your variables are of a certain type, like a char, or a string, or a double, you are specifying how many bits will be used to represent your data. so then when you put the ones and zeros into the memory , ( think RAM) then it's stored in groups of what ever size you've determined. hmmmm does this help?
Preserving confidentiality, integrity, and availability is a restatement of the concern over interruption, interception, modification, and fabrication.
i. Briefly explain the 4 attacks: interruption, interception, modification, and fabrication.
ii. How do the first three security concepts relate to these four attacks
Answer and Explanation:
I and II answered
Interruption: interruption occurs when network is tampered with or communication between systems in a network is obstructed for illegitimate purposes.
Interception: interception occurs when data sent between systems is intercepted such that the message sent to another system is seen by an unauthorized user before it reaches destination. Interception violates confidentiality of a message.
Modification: modification occurs when data sent from a system to another system on the network is altered by an authorized user before it reaches it's destination. Modification attacks violate integrity, confidentiality and authenticity of a message.
Fabrication: fabrication occurs when an unauthorized user poses as a valid user and sends a fake message to a system in the network. Fabrication violates confidentiality, integrity and authenticity.
Which of the following terms describes an attacker walking or driving through business areas and neighborhoods to identify unprotected wireless networks from the street using a laptop or a handheld computer?
A. Wi-Fi stealing.
B. Wi-Fi trolling.
C. Wi-Fi jacking.
D. Wi-Fi hacking.
Answer:
C. Wi-Fi jacking
Explanation:
Answer: yessir b
Explanation:
Use NAND operator to write; P or Q, and P -Q make an everyday implication sentence using only NAND
Answer:
Hence the answer is given as follows,
Explanation:
By using the NAND operator:-
P or Q and P -Q make an everyday implication sentence using the only NAND is given as,
9.17 LAB: Acronyms An acronym is a word formed from the initial letters of words in a set phrase. Write a program whose input is a phrase and whose output is an acronym of the input. If a word begins with a lower case letter, don't include that letter in the acronym. Assume there will be at least one upper case letter in the input.
Answer:
Hence the code is given as follows,
import java.util.Scanner;
public class LabProgram {
public static String createAcronym(String userPhrase){
String result = "";
String splits[] = userPhrase.split(" ");
for(int i = 0;i<splits.length;i++){
if(splits[i].charAt(0)>='A' && splits[i].charAt(0)<='Z')
result += splits[i].charAt(0);
}
return result;
}
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
String s = scan.nextLine();
System.out.println(createAcronym(s));
}
}
