A golf club wants to develop software to support a number of its activities. The club secretary will use the system to manage membership details, which includes adding and removing members. To become a member an application has to be recommended by two current members. The secretary can add tournaments as well as printing tournament results. Members of the club can enter tournaments if they wish and can view results. Draw a use case diagram for the following scenario
Answers
In the scenario above the case diagram will have:
Three actors Golf club Tournaments Three users which will be Clerk Person, Admin Clerk and others.
What is case diagram?Use-case diagrams is known to be a high-level functions and width of a system that tells the interactions between the given system and its actors.
Therefore, In the scenario above the case diagram will have:
Three actors Golf club Tournaments Three users which will be Clerk Person, Admin Clerk and others.Learn more about case diagram from
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Related Questions
what is data abstraction and data independence?
Answers
Data abstraction and data independence are two key concepts in computer science and database management systems. They are closely related and aim to improve the efficiency, flexibility, and maintainability of data management.
What is data abstraction and data independence?The definitions of these two are:
Data Abstraction:
Data abstraction refers to the process of hiding the implementation details of data and providing a simplified view or interface to interact with it. It allows users to focus on the essential aspects of data without being concerned about the underlying complexities. In programming languages, data abstraction is often achieved through the use of abstract data types (ADTs) or classes.
By abstracting data, programmers can create high-level representations of data entities, defining their properties and operations.
Data Independence:
Data independence refers to the ability to modify the data storage structures and organization without affecting the higher-level applications or programs that use the data. It allows for changes to be made to the database system without requiring corresponding modifications to the applications that rely on that data. Data independence provides flexibility, scalability, and ease of maintenance in database systems.
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How would a malfunction in each component affect the system as a whole ?
Answers
Answer:
The whole system becomes unavaliable
Explanation:
Which kind of wave would be observed in outer space between planets where there is little matter?; What type of waves are observed in outer space?; What type of wave carries energy through space?; Which type of wave Cannot travel in outer space?
Answers
A wave that can cross the vacuum of space is an electromagnetic wave. For their energy to be transferred from one place to another, mechanical waves, unlike electromagnetic waves, need a material medium.
The definition of electromagnetic waves.A wave that can cross the vacuum of space is an electromagnetic wave. For their energy to be transferred from one place to another, mechanical waves, unlike electromagnetic waves, need a material medium.Unlike mechanical waves, which need a medium to travel, electromagnetic waves can move through air or space. This implies that electromagnetic waves can pass not only through solid objects like metals and solid materials, but also through empty space.Electromagnetic waves are similar to other waves in that they can move energy from one location to another. Electromagnetic radiation is the term for the electromagnetic transmission of energy.To learn more about Wave refer to:
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What’s one task you think would be hard for computers to do as well as humans? Explain.
Answers
One task that could be challenging for computers to perform as effectively as humans is creative and intuitive problem solving. While computers excel at tasks that involve data analysis, calculation, and pattern recognition, they often lack the ability to think critically and creatively in complex and ambiguous situations.
What is the computers task about?Creative problem solving often requires human traits such as empathy, emotional intelligence, and intuition, which allow us to consider multiple perspectives, generate novel ideas, and come up with innovative solutions. Humans are capable of leveraging their experiences, emotions, and intuition to tackle problems that do not have clear-cut answers or require subjective judgment.
Furthermore, creative problem solving often involves dealing with uncertainty, making decisions based on incomplete information, and adapting to changing circumstances. Humans are naturally equipped with cognitive flexibility and adaptability, which enable us to navigate uncertain and dynamic situations with agility.
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Components of a product or system must be
1) Reliable
2) Flexible
3) Purposeful
4)Interchangeable
Answers
Answer:
The correct answer to the following question will be Option D (Interchangeable).
Explanation:
Interchangeability applies towards any portion, part as well as a unit that could be accompanied either by equivalent portion, component, and unit within a specified commodity or piece of technology or equipment.This would be the degree to which another object can be quickly replaced with such an equivalent object without re-calibration being required.The other three solutions are not situation-ally appropriate, so option D seems to be the right choice.
Please write in Python
Answers
A program that returns the price, delta and vega for European and American options is given below:
The Programimport jax.numpy as np
from jax.scipy.stats import norm
from jax import grad
class EuropeanCall:
def call_price(
self, asset_price, asset_volatility, strike_price,
time_to_expiration, risk_free_rate
):
The complete code can be found in the attached file.
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PLEASE HELP ME ANSWER THIS QUESTION. I REALLY REALLY NEED IT.
. According to IEEE, what is software engineering? (A) The study of
approaches (B) The development of software product using scientific
principles, methods, and procedures (C) The application of engineering
to software (D) All of the above
Answers
IEEE (Institute of Electrical and Electronics Engineers) describes software engineering as:
(D) All of the above.
Software engineering encompasses the study of approaches, and the development of software products using scientific principles, methods, and procedures. It also encompasses the application of engineering principles to software. It is a multidisciplinary field that combines technical knowledge, problem-solving skills, and systematic processes to design, develop, and maintain software systems efficiently and effectively.
Please help its due on May 7th and the code has to be in python.
Answers
We can use a list to store the sensor objects, and we can sort the list by room number, room description, or sensor number. However, accessing a sensor by its room number would require iterating through the entire list.
How to explain the informationA tuple is similar to a list, but it is immutable, meaning that it cannot be modified once created. We could use a tuple to store each sensor object, but sorting the tuple would require creating a new sorted tuple. Accessing a sensor by its room number would also require iterating through the entire tuple.
A set is an unordered collection of unique items, and it can be modified. We could use a set to store the sensor objects, but sorting the set is not possible. Accessing a sensor by its room number would also require iterating through the entire set.
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. What is a one-dimensional basic component in art and geometry
Answers
Answer:
a straight line
Explanation:
Anything one dimensional can only be a line
Before inserting a preformatted table of contents, what must you do first?
apply heading styles to text
update the table of contents
navigate to the Review tab and the Table of Contents grouping
navigate to the Insert Table of Contents dialog box
Answers
Answer: apply heading styles to text.
Explanation:
In addition to letting people share files, what is the most useful feature of
document-synchronization tools?
A. They email updated revisions on a document back and forth to
one another
B. They combine and compress large files into a zip file for sending
through email
C. They schedule appointments for work meetings and personal
reasons
D. They let more than one person work on the same document at the
same time
Answers
Explanation:
B. They combine and compress large files into a zip file for sending through email
Answer:
D. They let more than one person work on the same document at the
same time
Name six different administrative controls used to secure personnel
Answers
The six different administrative controls used to secure personnel are: Preventative, detective, corrective, deterrent, recovery, directive, and compensation.
What controls have the additional name "administrative controls"?To lessen or restrict exposure to a particular hazard at work, administrative controls, also known as work practice controls, are used. When substitution, omission, or the use of engineering controls are not practical, this type of hazard control alters the way work is done.
Therefore, Policies, processes, or guidelines that outline employee or company practices in keeping with the organization's security objectives are referred to as administrative security controls.
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Help Menu is available at which button in the keyboard?
Answers
In which of the following situations must you stop for a school bus with flashing red lights?
None of the choices are correct.
on a highway that is divided into two separate roadways if you are on the SAME roadway as the school bus
you never have to stop for a school bus as long as you slow down and proceed with caution until you have completely passed it
on a highway that is divided into two separate roadways if you are on the OPPOSITE roadway as the school bus
Answers
The correct answer is:
on a highway that is divided into two separate roadways if you are on the OPPOSITE roadway as the school busWhat happens when a school bus is flashing red lightsWhen a school bus has its flashing red lights activated and the stop sign extended, it is indicating that students are either boarding or exiting the bus. In most jurisdictions, drivers are required to stop when they are on the opposite side of a divided highway from the school bus. This is to ensure the safety of the students crossing the road.
It is crucial to follow the specific laws and regulations of your local jurisdiction regarding school bus safety, as they may vary.
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What is the value of grade after this program is executed? Assume the score is 71. if score >= 90: grade = "A" elif score >= 80: grade = "B" elif score >= 70: grade = "C" elif score >= 60: grade = "D" else: grade = "F" grade =
Answers
Answer:
C
Explanation:
if the score is 71 it would fall into 70 because it is not greater than 80 and not less than 70
Answer:
F= 50%
Fail is 50% grades.
1. A network administrator was to implement a solution that will allow authorized traffic, deny unauthorized traffic and ensure that appropriate ports are being used for a number of TCP and UDP protocols.
Which of the following network controls would meet these requirements?
a) Stateful Firewall
b) Web Security Gateway
c) URL Filter
d) Proxy Server
e) Web Application Firewall
Answer:
Why:
2. The security administrator has noticed cars parking just outside of the building fence line.
Which of the following security measures can the administrator use to help protect the company's WiFi network against war driving? (Select TWO)
a) Create a honeynet
b) Reduce beacon rate
c) Add false SSIDs
d) Change antenna placement
e) Adjust power level controls
f) Implement a warning banner
Answer:
Why:
3. A wireless network consists of an _____ or router that receives, forwards and transmits data, and one or more devices, called_____, such as computers or printers, that communicate with the access point.
a) Stations, Access Point
b) Access Point, Stations
c) Stations, SSID
d) Access Point, SSID
Answer:
Why:
4. A technician suspects that a system has been compromised. The technician reviews the following log entry:
WARNING- hash mismatch: C:\Window\SysWOW64\user32.dll
WARNING- hash mismatch: C:\Window\SysWOW64\kernel32.dll
Based solely ono the above information, which of the following types of malware is MOST likely installed on the system?
a) Rootkit
b) Ransomware
c) Trojan
d) Backdoor
Answer:
Why:
5. An instructor is teaching a hands-on wireless security class and needs to configure a test access point to show students an attack on a weak protocol.
Which of the following configurations should the instructor implement?
a) WPA2
b) WPA
c) EAP
d) WEP
Answer:
Why:
Answers
Network controls that would meet the requirements is option a) Stateful Firewall
Security measures to protect against war driving: b) Reduce beacon rate and e) Adjust power level controlsComponents of a wireless network option b) Access Point, StationsType of malware most likely installed based on log entry option a) RootkitConfiguration to demonstrate an attack on a weak protocol optio d) WEPWhat is the statement about?A stateful firewall authorizes established connections and blocks suspicious traffic, while enforcing appropriate TCP and UDP ports.
A log entry with hash mismatch for system files suggest a rootkit is installed. To show a weak protocol attack, use WEP on the access point as it is an outdated and weak wireless network security protocol.
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Question 5 (1 point) When you create a table of contents (TOC) a reader can use the table of contents links to move to the titled section in the document that use heading styles. True False
Answers
The given statement about TOC is True.
What is a TOC?
A Table of Contents (TOC) provides a quick and easy way for readers to navigate through a document by listing its headings and corresponding page numbers.
The headings used in a TOC are usually formatted with heading styles (e.g. Heading 1, Heading 2, etc.).
When a reader clicks on a heading listed in the TOC, it takes them directly to the corresponding section in the document. This helps the reader to quickly locate the information they are looking for and improves the overall readability and usability of the document.
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If you delete search results, you will a. clear the history on the computer. b. delete files from our computer. c. modify the results. d. be unable to search again.
Answers
Answer:
a. clear the history on the compute
Explanation:
Choose the expression that belongs in the blank in order to ask the user the question shown.
>>> answer = input(_____)
What is your name? Juan
Answers
Answer:
"Juan"
Explanation:
If this is script, than that should be the correct argument.
Please need help ASAP will mark brainliest
Answers
Answer:
x8 negakation with a false
first 2 questions are true or false the last question is multiple choice. 7th grade work. plz only answer if u know.
Answers
#4 is true
We use pseudocode to help us understand code.
#5 is false
Strings are surrounded by quotes, integers are not.
#6 is 100.
Integers are numbers with no decimal places.
A shot made while running is a ____________.
Answers
Answer:
A shot made while running is called a layup.
Creating a company culture for security design document
Answers
Use strict access control methods: Limit access to cardholder data to those who "need to know." Identify and authenticate system access. Limit physical access to cardholder information.
Networks should be monitored and tested on a regular basis. Maintain a policy for information security.
What is a healthy security culture?Security culture refers to a set of practises employed by activists, most notably contemporary anarchists, to avoid or mitigate the effects of police surveillance and harassment, as well as state control.
Your security policies, as well as how your security team communicates, enables, and enforces those policies, are frequently the most important drivers of your security culture. You will have a strong security culture if you have relatively simple, common sense policies communicated by an engaging and supportive security team.
What topics can be discussed, in what context, and with whom is governed by security culture. It forbids speaking with law enforcement, and certain media and locations are identified as security risks; the Internet, telephone and mail, people's homes and vehicles, and community meeting places are all assumed to have covert listening devices.
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the increase and decrease font button and the change text colour button (as shown in the picture )are include in which group ?
Answers
Answer:
These are the part of FONT Group on MS word / Excel application where you can increase and decrease font, change text color, highlight text, select font from the list and many other functions.
You can also perform advance functions related to Font by clicking on a small arrow like icon in bottom right corner.
You resurrected an old worksheet. It appears to contain most of the information that you need, but not all of it. Which step should you take next?
a) Check for data you have previously hidden.
b) Make the columns wider.
c) Check that the worksheet is not Read-Only.
d) Change the format to reduce the font size.
Answers
Answer:
a)
Explanation:
Since the worksheet contains most of the data that you need, there is a decent possibility that it also contains the data that you are missing. Therefore, you should check for data you have previously hidden. Sometimes, some data in a worksheet may become irrelevant in a given moment, and instead of deleting it since it may be useful later most people tend to make that data hidden. So checking for previously hidden data may be the best solution in this scenario.
Can someone help me with this lab assignment? I really do not know what should I do?
This assignment
The program you wrote in Stacks 1 is incomplete. Without a destructor it creates a memory leak. A destructor has been defined in this program but it is incorrect. To visualize how the destructor works, a cout statement has been added. Fix the errors, including the cout statement, to display the value in each node of the stack before releasing the memory.
Write a loop in main() to enter an unknown number of positive integers. The loop stops when you enter 0 or a negative number. As you are entering integers, they are to be pushed onto a stack.
Ex.: If the user enters '10 20 30 -1` the output (from the destructor) should be:
30 - deleted!
20 - deleted!
10 - deleted!
Empty stack!
Ex.: If the user enters '-1` the output should be:
Empty stack!
This is the code:
#include
using namespace std;
class Stack_int
{
private:
// Structure for the stack nodes
struct StackNode {
int value; // Value in the node
StackNode *next; // Pointer to next node
};
StackNode *top; // Pointer to the stack top
int length; // Number of nodes
public:
Stack_int(){ top = NULL; length = 0; } //Constructor
~Stack_int(); // Destructor
// Stack operations
// bool isEmpty();
bool push(int);
// int pop();
// int peek();
// int getLength();
};
/**~*~*
Member function push: pushes the argument onto the stack.
*~**/
bool Stack_int::push(int item)
{
StackNode *newNode; // Pointer to a new node
// Allocate a new node and store num there.
newNode = new StackNode;
if (!newNode)
return false;
newNode->value = item;
// Update links and counter
newNode->next = top;
top = newNode;
length++;
return true;
}
/**~*~*
Destructor
*~**/
Stack_int::~Stack_int()
{
StackNode *currNode;
// Position nodePtr at the top of the stack.
currNode = top;
// Traverse the list deleting each node.
while (currNode)
{
cout << currNode->value << " - deleted!" << endl;
delete currNode;
currNode = NULL;
currNode = currNode->next;
}
cout << "Empty stack!" << endl;
}
int main() {
Stack_int s;
int item;
return 0;
}
Answers
Answer:
your question is too long to read
Explanation:
try explaining it in fewer words
Write a Python program stored in a file q1.py to play Rock-Paper-Scissors. In this game, two players count aloud to three, swinging their hand in a fist each time. When both players say three, the players throw one of three gestures: Rock beats scissors Scissors beats paper Paper beats rock Your task is to have a user play Rock-Paper-Scissors against a computer opponent that randomly picks a throw. You will ask the user how many points are required to win the game. The Rock-Paper-Scissors game is composed of rounds, where the winner of a round scores a single point. The user and computer play the game until the desired number of points to win the game is reached. Note: Within a round, if there is a tie (i.e., the user picks the same throw as the computer), prompt the user to throw again and generate a new throw for the computer. The computer and user continue throwing until there is a winner for the round.
Answers
Answer:
The program is as follows:
import random
print("Rock\nPaper\nScissors")
points = int(input("Points to win the game: "))
player_point = 0; computer_point = 0
while player_point != points and computer_point != points:
computer = random.choice(['Rock', 'Paper', 'Scissors'])
player = input('Choose: ')
if player == computer:
print('A tie - Both players chose '+player)
elif (player.lower() == "Rock".lower() and computer.lower() == "Scissors".lower()) or (player.lower() == "Paper".lower() and computer.lower() == "Rock".lower()) or (player == "Scissors" and computer.lower() == "Paper".lower()):
print('Player won! '+player +' beats '+computer)
player_point+=1
else:
print('Computer won! '+computer+' beats '+player)
computer_point+=1
print("Player:",player_point)
print("Computer:",computer_point)
Explanation:
This imports the random module
import random
This prints the three possible selections
print("Rock\nPaper\nScissors")
This gets input for the number of points to win
points = int(input("Points to win the game: "))
This initializes the player and the computer point to 0
player_point = 0; computer_point = 0
The following loop is repeated until the player or the computer gets to the winning point
while player_point != points and computer_point != points:
The computer makes selection
computer = random.choice(['Rock', 'Paper', 'Scissors'])
The player enters his selection
player = input('Choose: ')
If both selections are the same, then there is a tie
if player == computer:
print('A tie - Both players chose '+player)
If otherwise, further comparison is made
elif (player.lower() == "Rock".lower() and computer.lower() == "Scissors".lower()) or (player.lower() == "Paper".lower() and computer.lower() == "Rock".lower()) or (player == "Scissors" and computer.lower() == "Paper".lower()):
If the player wins, then the player's point is incremented by 1
print('Player won! '+player +' beats '+computer)
player_point+=1
If the computer wins, then the computer's point is incremented by 1
else:
print('Computer won! '+computer+' beats '+player)
computer_point+=1
At the end of the game, the player's and the computer's points are printed
print("Player:",player_point)
print("Computer:",computer_point)
Solve recurrence relation x (n) = x(n/3) +1 for n >1,x(1) =1. (Solve for n = 3k)
Answers
To solve this recurrence relation, we can use the iterative method known as substitution method. First, we make a guess for the solution and then prove it by mathematical induction.
Let's guess that x(n) = log base 3 of n. We can verify this guess by induction:
Base Case: x(1) = log base 3 of 1 = 0 + 1 = 1. So, the guess holds for n = 1.
Induction Hypothesis: Assume that x(k) = log base 3 of k holds for all k < n.
Induction Step: We need to show that x(n) = log base 3 of n holds as well. We have:
x(n) = x(n/3) + 1
= log base 3 of (n/3) + 1 (by induction hypothesis)
= log base 3 of n - log base 3 of 3 + 1
= log base 3 of n
So, x(n) = log base 3 of n holds for all n that are powers of 3.
Therefore, the solution to the recurrence relation x(n) = x(n/3) + 1 for n > 1, x(1) = 1, is x(n) = log base 3 of n for n = 3^k.
The global communication network that allows computers to connect and pass through information is called?
Answers
Answer: Internet
Explanation:
Answer:
The Internet.
Explanation:
Which of the following statements about markup languages is true?
• Markup languages are used to write algorithms.
Markup languages are used to structure content for computers to interpret
JavaScript is an example of a markup language.
Markup languages are a type of programming language.
Answers
The most widely used markup languages are SGML (Standard Generalized Markup Language), HTML (Hypertext Markup Language), and XML (Extensible Markup Language).
B .Markup languages are used to structure content for computers to interpret is true.
What is a markup language in programming?A markup language is a type of language used to annotate text and embed tags in accurately styled electronic documents, irrespective of computer platform, operating system, application or program.
What does a markup language used to identify content?Hypertext markup language is used to aid in the publication of web pages by providing a structure that defines elements like tables, forms, lists and headings, and identifies where different portions of our content begin and end.
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