Fail lock commands can you use to list users who have been locked out by pam_faillock.
What is pam_faillock?Pam faillock performs a similar function to pam tally and pam tally2, but with more options and flexibility. In the event of numerous failed authentication attempts, the pam faillock module supports the temporary locking of user accounts.
By enabling temporary locking when the authentication attempts are made while the screensaver is running, this new module enhances functionality over the pre-existing pam tally2 module.
After a predetermined number of unsuccessful login attempts, we will use pam fail lock to lock the user account. Then, by resetting the failed login counter, we will use the fail lock binary command to unlock the user.
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11
Fourth part
nd return
Third part
except TooWide:
print("Your luggage will not fit in the overhead bln.")
21
class TooWide (Exception):
pass
11
try:
11
if width> 30:
else:
answer input('How wide is it?')
width= float(answer)
raise TooWide
Save and Exit
print("Have a nice tript")
Next
'How wide is it?' input height = float (answer) try: if width exceeds 30, raise TooWide If not, print "Have a good vacation!" excluding TooWide print("Your luggage will not fit in the overhead bin") ("Your luggage will not fit in the overhead bin.")
What is Computer programme?A series of instructions written in a programming language for a computer to follow constitutes a computer programme. Software, which also contains documentation and other intangible components, includes computer programmes as one of its constituents. The source code of a computer programme is what can be read by humans. A programme is a set of instructions that a computer can carry out. Programs are logical, well-organized, and written in a language that computers can understand.Computer programmes include MS Word, MS Excel, Adobe Photoshop, Internet Explorer, Chrome, and others. In order to create graphics and special effects for movies, computer applications are used.Except for Python, your application serves as an example to try.
A comparable except statement is what the Python interpreter anticipates when it encounters a try statement.
Thus, the full programme is:
class TooWide(Exception): pass
answer = input('How wide is it? ')
width = float(answer)
try:
if width > 30:
raise TooWide
else:
print("Have a nice trip!")
except TooWide:
print("Your luggage will not fit in the overhead bin.")
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It appears that the text provided is a code snippet in Python programming language. Line 11 appears to be a loop of some sort, possibly a try-except block.
What these programming lines explains about?The loop is trying to check if the width of an object is greater than 30. If it is, it raises an exception called Too Wide.Line 21 defines the Too Wide exception as a class.Line 11 is again a try-except block, it tries to check the width of the object, if it's greater than 30 it raises the Too Wide exception, otherwise it prompts the user to input the width of the object and assigns it to the width variable.Line 11: The code saves and exits the program.Line 11: The code prints "Have a nice trip" as the final statement.To learn more about python program refer:
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A line in the plane can be specified in various ways: By giving a point (x,y) and a slope m (You DON'T NEED the Point Class) by giving two Points (x1,y1), (x2,y2) (You DON'T NEED the Point class.) as an equation in slope intercept form y = mx+b as an equation x=a if the line is vertical Implement a class Line with four constructors, corresponding to the four cases above. Implement methods: boolean intersects (Line other) boolean equals(Line other) boolean isParallel(Line other).
A line in the plane can be specified in various ways: Method 3: boolean is Parallel(Line other) public boolean isParallel(Line other) { return this.m == other.m;
What is the boolean ?Boolean is a data type that represents one of two values, either true or false. It is commonly used in programming to determine the result of a comparison between two values. Boolean values are also used in logic to create logical expressions that can be used to control the flow of a program. Boolean values are the building blocks of any computer language and are essential for any programming task.
public class Line {
// y = mx + b
private double m;
private double b;
// x = a
private double a;
// Constructor 1: y = mx + b
public Line(double m, double b) {
this.m = m;
this.b = b;
}
// Constructor 2: two points (x1,y1), (x2,y2)
double x1, double y1, double x2, double y2 public Line
if (x2 - x1 == 0) {
this.a = x1;
}
else {
x2 - x1 = (y2 - y1) / this.m;
this.b = y1 - m * x1;
}
}
// Constructor 3: equation in slope-intercept form y = mx + b
public Line(String equation) {
String[] parts = equation.split("x\\+");
this.m = Double.parseDouble(parts[0].replace("y=", ""));
this.b = Double.parseDouble(parts[1]);
}
// Constructor 4: equation x = a
public Line(double a) {
this.a = a;
}
// Method 1: boolean intersects (Line other)
public boolean intersects(Line other) {
if (this.a == 0 && other.a == 0) {
return false;
}
else if (this.a != 0 && other.a != 0) {
return false;
}
else {
if (this.a != 0) {
return this.a == other.b;
}
else {
return other.a == this.b;
}
}
}
// Method 2: boolean equals(Line other)
public boolean equals(Line other) {
if (this.a == 0 && other.a == 0) {
return this.m == other.m && this.b == other.b;
}
else {
return this.a == other.a;
}
}
// Method 3: boolean isParallel(Line other)
public boolean isParallel(Line other) {
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Which of the following statements about anti-malware are accurate? Select 2 options. (Multiple choice)
A) Anti-malware and firewalls perform the same functions.
B) It is rarely necessary to update virus definitions in anti-malware.
C) Anti-malware can detect viruses currently on your computer and within incoming files.
D) Anti-malware is software that identifies and removes malicious software
E) Anti-malware is 100 percent effective, but it is very expensive.
C) Anti-malware can detect viruses currently on your computer and within incoming files.
D) Anti-malware is software that identifies and removes malicious software
which of the following statements describes the difference in how local variables and instance variables work given the following code fragment? def main():
p = Object1(2, 3)
print(p.method1())
print(p.method2())
print("done")
The instance variables are reused each time an Object1 method (like method1() or method2()) is called, while new copies of the local variables are only utilised each time.
A variable in programming is a value that can vary based on external factors or data that has been supplied to the programme. A programme typically comprises of data that it uses while running and instructions that tell the machine what to execute. Constants, or fixed values, are values that never change, while variables are values that can change but are often set to "0" or another default value since a program's user will supply the real values. Constants and variables are often classified as certain data types. Each data type specifies and restricts the data's shape. An integer expressed as a decimal number is an example of a data type, as is a string of text characters that is often constrained in length.
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When a full tunnel is being used by a VPN client and server, you can expect the first hop in to always be the gateway for the network. 1) PuTTY; remote 2) tracert; remote 3) PuTTY; VPN 4) tracert; VPN Question 6 ( 1 point) Which tool or application can be used to create a remote connection with network devices, including switches, file servers, or web servers, across a LAN or WAN? 1) Ping 2) Traceroute 3) PutTy 4) Nslookup
You can expect the first hop in tracert to always be the gateway for the vpn network. PuTTY is tool or application can be used to create a remote connection with network devices.
What is the difference between a server and a VPN?
Proxy servers and VPNs both mask your IP address, permitting you to visit websites anonymously, but VPNs are the only ones that route all network traffic through with an encrypted tunnel. Another significant distinction is that VPNs treat all network traffic, whereas proxy servers just address application-level data.
What is a server in a VPN?
A VPN server is a server of server that allows VPN services to be hosted and delivered. It is a combination between VPN software and hardware that connects VPN clients to a safe and/or local network, or perhaps the VPN.
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Which of the following is a free, open-source scriptable screen reader that works with the GNOME desktop?
a. High contrast
b. Orca
c. Mouse keys
d. Bounce keys
Orca is a free, open-source scriptable screen reader that works with the GNOME desktop.
What is screen reader?A screen reader is a form of assistive technology that reads text aloud from a computer screen. This type of software is used by people who have a visual impairment or other disability that prevents them from viewing the text on the screen. Screen readers use text-to-speech technology to read out loud the text that appears on the screen.
It provides access to graphical user interfaces, such as web browsers and graphical applications, to visually impaired users. It includes features such as support for spoken language and braille, as well as customizable keyboard shortcuts.
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which of the following contains code, written in the java programming language, that you and other programmers can understand? group of answer choices source file bytecode file executable file
Source file contains code, written in the java programming language, that you and other programmers can understand.
What is the name of a source file?The files that you, the designer, utilised to generate your designs are known as source files. The more well-known files are from Adobe and include Indesign, Illustrator, and Photoshop. Clients should be given access to these files so they can modify or print scalable copies of the design as needed. The primary project file that the freelancer will utilise to finish your project is referred to as the "source file." Photoshop (.psd) or Illustrator (.ai) files are generally used for this. It's possible that you won't be able to open or edit the source file if you're unfamiliar with these applications. A designer uses a source file to create the layout or design of something.
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which of the following is true of symbols and communication?
A symbol is a representation of an idea, object, or concept that conveys meaning and serves as a form of communication. Symbols can be verbal, visual, or abstract and have the power to create a shared understanding among people.
What is symbol?A symbol is a physical object, character or sign that stands for or represents an idea, concept, or object. Symbols are often used to represent different meanings, emotions, or ideas. Examples of symbols include words, numbers, shapes, colors, and images. Symbols can be used in literature, artwork, and language to convey a specific message or to evoke a certain emotion. Symbols are often used to signify something larger than what is represented, such as a nation, a religion, an ideology, or even a set of values. Symbols can also be used to represent a certain idea, such as a flag representing a country or a cross representing Christianity. Symbols can also be used to represent abstract concepts, such as light representing hope or a dove representing peace.
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A user copies files from her desktop computer to a USB flash device and puts the device into her pocket. Which of the following security risks is most pressing?
confidentiality ensures that it is not shared with unauthorized parties. Because it is so simple to remove data from removable media and give it to unauthorized people, this poses a serious danger to confidentiality. Data availability ensures that it is accessible when required. transferring files to a malicious server.so, option (a) is the correct one.
The majority of sectors contain sensitive data that, if revealed, could cause serious harm to a company's reputation, loss of sales, legal expenses, punitive damage costs, and non-compliance fines. Protecting sensitive data on USB drives is a top priority, according to almost 80% of poll participants. By failing to appropriately monitor these devices and the data that is written to them, businesses expose themselves to data breaches and leaks.Although businesses are aware of the value of USB drives for productivity and efficiency, only 50% of them are needed to get authorization before using an external USB drive. The fact that these and other inadequate security measures will eventually make firms exposed to data compromise and assault may not come as a surprise.
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A user copies files from her desktop computer to a USB flash device and puts the device into her pocket. Which of the following security risks is most pressing?
a) confidentiality
b) non-repudiation
c) intergrity
d) availbility
#include
#include
using namespace std;
/*
Write a for loop to print all NUM_VALS elements of vector courseGrades, following each with a space (including the last). Print forwards, then backwards. End with newline. Ex: If courseGrades = {7, 9, 11, 10}, print:
7 9 11 10
10 11 9 7
Hint: Use two for loops. Second loop starts with i = NUM_VALS - 1.
Note: These activities may test code with different test values. This activity will perform two tests, the first with a 4-element vector (vector courseGrades(4)), the second with a 2-element vector (vector courseGrades(2)). See How to Use zyBooks.
Also note: If the submitted code tries to access an invalid vector element, such as courseGrades.at(9) for a 4-element vector, the test may generate strange results. Or the test may crash and report "Program end never reached", in which case the system doesn't print the test case that caused the reported message.
*/
int main() {
const int NUM_VALS = 4;
vector courseGrades(NUM_VALS);
int i = 0;
courseGrades.at(0) = 7;
courseGrades.at(1) = 9;
courseGrades.at(2) = 11;
courseGrades.at(3) = 10;
/* Your solution goes here */
int loopLimiter = courseGrades.size() - 1; //NOTE: size() starts at 1 NOT 0 for(i = 0; i <= loopLimiter; i++){
cout << courseGrades.at(i) << " ";
}
cout << endl;
for(i = loopLimiter; i >= 0; i--){
cout << courseGrades.at(i) << " ";
}
cout << endl;
return 0;
}
The loop to print all NUM_VALS elements of vector courseGrades can be write as follows:
#include <iostream>
#include <vector>
using namespace std;
int main() {
const int NUM_VALS = 4;
vector<int> courseGrades(NUM_VALS);
int i = 0;
courseGrades.at(0) = 7;
courseGrades.at(1) = 9;
courseGrades.at(2) = 11;
courseGrades.at(3) = 10;
/* Your solution goes here */
int loopLimiter = courseGrades.size() - 1; //NOTE: size() starts at 1 NOT 0
for(i = 0; i <= loopLimiter; i++){
cout << courseGrades.at(i) << " ";
}
cout << endl;
for(i = loopLimiter; i >= 0; i--){
cout << courseGrades.at(i) << " ";
}
cout << endl;
return 0;
}
Code may be tested using various test values throughout these operations. Using a 4-element vector (vectorint> courseGrades(4)) for the first exam and a 2-element vector (vectorint> courseGrades(2)) for the second, this activity will conduct two tests.
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You can get the last digit of a positive integer n as n % 10. Complete the following program to compute the second-to-last digit. For example, if n is 1729, your program should print 2. If n is less than 10, print o. Complete the following file: SecondToLast.java import java.util.Scanner; 1 2 3 4 5 6 7 8 9 10 11 12 13 public class SecondToLast { public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.print("Radius: "); int n = in.nextInt(); double secondToLast = ...; System.out.println("Second to last digit: " } } + secondToLast); Submit
Answer: First, the last digit of the number is `n = n % 10`, once you have calculated the last digit of the number, the second last digit is `n = n % 10`.
Second, if n < 10 then print "o"
from the following tcp communication flags identity the flag which initiates a connection between different hosts.
From the given TCP communication flags, the flag which initiates a connection between different hosts is the SYN flag.
What is SYN flag?The SYN flag is a control flag used in the Transmission Control Protocol (TCP) to initiate a connection between two computers. When the SYN flag is set, the first computer sends a SYN packet to the second computer, which responds with an acknowledgment (ACK) packet.
This exchange of SYN and ACK packets between two computers is known as the TCP three-way handshake. After this three-way handshake is completed, a connection is established and the two computers can begin sending data back and forth. The SYN flag is used for other purposes as well, such as for retransmission of lost packets and to close a TCP connection.
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Edit the formula in cell D2 so the references to cell C2 will update when the formula is copied, and the reference to cell B9 will remain constant. Use AutoFill to copy the formula to cells
=C2*B9 will update when the formula is copied, and the reference to cell B9 will remain constant .
About cell in excel
A cell in Excel is a single box that stores data. It is the basic unit of a worksheet, and can contain either a numeric or text value. Cells are organized into columns and rows, and can contain formulas, references, functions, and other types of data. Cells can be merged and formatted to create a visual representation of data. Cells can be linked to other cells and worksheets, allowing information to be shared and manipulated. Microsoft Excel enables everyone to format and organize and calculate data in a spreadsheet.
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TRUE/FALSE. the ribbon in the microsoft office suite shows the same number of buttons no matter your monitor's display settings.
No matter how your monitor is set up for display, the ribbon in the Microsoft office suite always displays the same amount of buttons. which is incorrect.
Where is the ribbon display options button ?To view the tabs and instructions if the ribbon is hidden, click the ribbon display options button on the title bar. Look at the tabs and click and drag on the pictures. You can get hints on where to find commands from tabs and groups, for example. They are sorted and gathered in one place.
At the top of the screen, the ribbon, which is a command bar, groups the functions of a software into a number of tabs. The purpose of ribbon tabs, which are made up of collections of related commands, is to make it simple for users to locate the commands they want. A bar (line) runs the length of each ribbon. In Microsoft Office 2007, the Ribbon, a user interface component, was unveiled by the company. It can be found below the Title Bar and Quick Access Toolbar.
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Compare the ufw status verbose command output with Windows Firewall with the Advanced Security Windows Firewall Properties you investigated in an earlier lab. Describe the major similarities that you observe.
Explain the advantages and disadvantages of having the firewall disabled at start up in the Linux operating system.
Create and document two firewall rules that you think would be important to include if all outbound traffic is being denied by the firewall rules. Explain your decision.
Firewalls can defend systems against the most common types of trojans, but they are unable to defend systems against other forms of malware, which may enter the system as trustworthy data.
What does a Linux firewall do?A firewall is a network security system that regulates and filters traffic on the predetermined set of rules. It serves as a bridge between the device and the Internet. Linux's kernel includes the Netfilter component.
Does Linux require a firewall?Most Linux desktop users don't need firewalls. You would only require a firewall if you were running a server application on your computer. It might be an email server or both.
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match the resource name with its use. (use answers only once) required tool that lab instructors use to improve the material for the course. answer 1 choose... required in-depth assignment to be completed individually. answer 2 independent assignment required assignment in which you watch a video of a lab instructor completing the assignment while you complete it yourself. answer 3 choose... optional (but recommended) time where you can get help with understanding material and assignments. answer 4 office hours required assignment that tests comprehension of week's material. preparation for the rest of the week's assignments. answer 5 choose... optional resource that serves as tutorials for specific topics. answer 6 videos required reading for each week, before completing any assignments. answer 7 textbook chapters optional, condensed versions of the information for each topic.
Answer 8 condensed versions of the information for each topic is Summaries.
What is Summaries?
Summaries are condensed versions of texts or stories which provide a brief overview of the main points. Summaries are generally shorter than the original text, and can be used to provide a brief assessment of the text or help a reader decide if they are interested in reading the full version. Summaries can be written in various forms such as paragraph summaries, chapter summaries, and abstracts. Summaries should be concise and objective, and should include only the main points of the original text.
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In the DMAIC (Define, Measure, Analyze, Improve, Control) process improvement, which of the following would belong to the measure step?Map and analyze current process
The "Map and analyze current process" activity would belong to the "Measure" step of the DMAIC (Define, Measure, Analyze, Improve, Control) process improvement method. The measure step is focused on identifying and quantifying the current performance of the process, including collecting data and measuring key performance indicators (KPIs) to establish a baseline for the process. Mapping and analyzing the current process helps to identify bottlenecks, inefficiencies, and other issues that may be impacting the process's performance. This information is then used to determine where improvements can be made and establish measurable goals for the process.
Zoned bit recording is how disk manufacturers ensure that a platter’s outer tracks store as much data as possible. True or False?
Disk manufacturers use zoned bit recording to make sure that the outside tracks of a platter can hold the most data possible. False
Which statement about the majority of drive imaging tools is accurate?They fulfill the same role as a backup. They make sure the digital evidence is not harmed by a corrupt original drive.
What program is employed for disk forensic imaging?Autopsy.The Sleuth Kit disk analysis
The most well-known forensics toolkits on the market are probably Autopsy and the Sleuth Kit. A command-line tool called The Sleuth Kit conducts forensic examination of hard drive and smartphone forensic photos.
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briefly describe architecture of IOT?
Explanation:
IOT architecture consists of the devices, network structure, and cloud technology that allows IOT devices to communicate with each other. A basic IOT architecture consists of three layers: Perception (the sensors, gadgets, and other devices) Network (the connectivity between devices)
to answer this question, complete the lab using the information below. perform the following tasks on the windows server 2016, corpserver:
The operating system for the cloud, Windows Server 2016, brings new layers of security and innovation inspired by Azure to the infrastructure and applications that run your company.
What are the two file systems that server 2016 mainly uses?Microsoft created the NTFS New Technology File System (NTFS) and Resilient File System (ReFS) file structures.
What are the three Windows Server 2016 licence types?For highly virtualized and software-defined datacenter environments, Datacenter Edition is ideal. Customers with low density or non-virtualized environments should use the Standard Edition. A first server with cloud connectivity, the Essentials Edition is perfect for small businesses with up to 25 users and 50 devices.
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before the paragraph, add an h2 header that reads 'conclusion' and then an h3 header that reads 'section 1'. show expected
To add an h2 header that reads 'Conclusion' and an h3 header that reads 'Section 1', we need to use the HTML tags <h2> and <h3>. The <h2> tag defines a heading and the <h3> tag defines a sub-heading. Both the tags should be added before the paragraph.
What is Conclusion?A conclusion is a summary of the main points of an essay, presentation, or other document. It is typically the final section of an essay, report, or speech and serves as a way to review the main points and reinforce the main ideas discussed. The conclusion is also an opportunity to provide a sense of closure to the reader or audience and to leave a lasting impression. In some cases, the conclusion may be used to suggest further action or make a recommendation.
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name your program calculator.java. it should work as follows: print out the list of operations for the user. prompt the user to enter an operation. this operation must be processed as case-insensitive.
Create a basic calculator class with methods for addition, subtraction, division, and multiplication.
To assist users in getting and setting the values on which an action is to be done, develop a getter setter class. main class, which is where the call to the operation is made. Calculations such as addition, subtraction, multiplication, division, modulus, power of numbers, etc. are performed using a Java calculator. A straightforward Java switch case and a Java swing standalone application can be used to perform this calculator operation. The widely used programming language BASIC is frequently implemented on desktop and handheld computers. Today, Casio BASIC or BasicLike and TI's own dialects of BASIC are the most often used languages in high-end calculators (TI-BASIC).
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How to fix this eror: you are running `create-react-app` 4.0.3, which is behind the latest release (5.0.1). we no longer support global installation of create react app. please remove any global installs with one of the following commands: - npm uninstall -g create-react-app - yarn global remove create-react-app
Try running npx create-react-app your-app after using npx clear-npx-cache to remove your npx cache. It aids in correcting the error.
How can I remove the Create React App version 4.0 3?To remove any global versions of create-react-app, use npm uninstall -g. Update npm by running npm I -g npm latest. Try to clear any cached information about create-react-app by running sudo npm cache clean -f followed by npm uninstall -g create-react-app.
Why does it take so long to construct a React app?There are only a few variables that could affect how well npm or npx commands function in general. Hard disks (often 5400RPM models) are the bottleneck for I/O performance, which slows down the installation process. challenges with internet access, such as slow or high latency.
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the syntax of which of the following formulas would allow the analyst to count purchase sizes of two or more?a. =SUMIF(G2:G30,"<=")b. =COUNTIF(G2:G30,">=")c. =SUMIF(H2:H30,"=4")d. =COUNTIF(H2:H30,">=")
The following formulas would allow the analyst to count purchase sizes of two or more;d. =COUNTIF(H2:H30,">=")
What is the analyst ?An analyst is a professional who performs analysis of a situation or problem in order to provide solutions, guidance, and recommendations. Analysts are often employed in business, finance, and scientific research. They use a variety of methods to evaluate data and make decisions. These methods include data analysis, statistical analysis, and qualitative analysis. Analysts may also be involved in presenting their findings to stakeholders and helping to develop strategies for implementation. Analysts must be organized and have strong problem-solving and communication skills. They must also be able to think analytically and be able to make decisions based on the evidence they have gathered.
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Research hacktivism, and write a one-page paper that answers the following questions:
Quiz Questions
a. Is hacktivism an effective political tool?
b. Did any of the hacktivists you researched go too far?
c. Can hacktivism ever be justified?
Hacktivism is the use of hacking as a means to achieve a political or social agenda. It is a form of cyber-activism that involves the use of hacking techniques to disrupt, deface, or steal information from targeted websites or systems. Hacktivists often use their skills to draw attention to political or social issues, such as censorship or human rights abuses.
a. In some way, Yes, hacktivism is an effective political tool.
B: Yes, hacktivists that i have researched had go too far.
c. In some way, yes, hacktivism can be justified.
What is hacktivism?The effectiveness of hacktivism as a political tool is a topic of debate. On one hand, hacktivists argue that their actions are necessary to raise awareness about issues that are not being addressed by traditional means.
Hacktivism can be seen as a form of protest that allows individuals to take direct action against organizations or governments that they perceive as corrupt or oppressive. On the other hand, critics argue that hacktivism is not an effective means of achieving political change.
Therefore, Some of the hacktivists that have been researched have been criticized for going too far in their actions. For example, the group Anonymous has been involved in a number of high-profile hacks, including attacks on government websites and the theft of sensitive information. While Anonymous has been praised
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according to a soccer coach, 75% of soccer players have had at least one sprained ankle. an athletic trainer would like to investigate this claim. to do so, the trainer selects a random sample of 125 college soccer players from across the country and finds that 99 of them have had at least one sprained ankle. the trainer would like to know if the data provide convincing evidence that the true proportion of college soccer players who have had at least one sprained ankle is greater than 75%. the computer output gives the results of a z-test for one proportion. test and ci for one proportion test of p
NOT H0: p = 0.75 vs Ha: p > 0.75, where p is the percentage of collegiate soccer players in the sample who had experienced at least one sprained ankle.
What do you mean by proportion?
Proportion is explained mostly through the use of ratios and fractions. When two ratios are stated as a fraction with in form of a/b, ration a:b, followed by a proportion, they are equal. a or b could be any two integers in this situation. The ratio of proportion are essential building blocks for comprehending the many notions found in mathematics and science. Numerous issues in daily life, like those that arise in business when processing transactions or in kitchen, can be overcome with balance. It establishes a link between two or even more quantities and facilitates comparison.
(A) NOT H0: p = 0.75 vs Ha: p > 0.792, where p is the percentage of collegiate soccer players in the sample who had experienced at least one sprained ankle. (C)
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Suppose users share a 10 Mbps link. Also suppose each user requires 200 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.this problem, we consider sending real-time voice from Host A to Host Bc. Suppose there are 120 users. Find the probability that at any given time, exactly n users are transmitting simultaneously. (Hint: Use the binomial distribution.)
The probability of there being 21 or more users is 0.001, as there are only 20 users who have the ability to transmit.
How do you find the probability that a given user is transmitting?We'll refer to this probability as p and it equals the fraction of time, or 0.2, that a given (specific) user is sending. The probability that any other Nps-1 users are not transmitting is equal to the probability that one specific other Nps-1 user is not busy, which is (1-p). 100 Kbps must be set aside for each user at all times when using circuit-switching. Therefore, only ten users can be connected to the link at once. There is a less than.0004 chance that there will be 10 or more concurrently active users using packet switching if there are 35 users.
[tex]$$\begin{aligned}& 10 \mathrm{Mbps} / 200 \mathrm{Kbps}=10 \\& 10 \%=1 / 10=0.1 \\& 120 \mathrm{Cn}(1 / 10)^\mathrm{n}[(9 / 10)]^{(120-n)}\end{aligned}$$[/tex]
Since there are only 20 users who can transmit, the likelihood of there being 21 or more users is 0.001.
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unlike application software programs, which run in a window on your desktop,____usually run in the background whenever they're needed.
System software programs usually run in the background whenever they're needed.
What is programs?Programs are sets of instructions that tell a computer how to perform a task. Programs can be written in a variety of computer languages, including C++, Java, Python, Visual Basic, and HTML. A program consists of one or more files that contain code, which tells the computer what to do when a certain command is issued. The code is written in a way that is understandable by the computer and can be read and understood by a human. Programs can range from simple games to complex applications that manage businesses.
System software forms the platform for application software programs to work on, allowing a user to access the hardware and other resources of the computer. This type of software includes the operating system, device drivers, language translators and utilities.
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79.1% complete question an attacker used an exploit to steal information from a mobile device, which allowed the attacker to circumvent the authentication process. which of the following attacks was used to exploit the mobile device?
The attack used could be a variety of attacks, such as a phishing attack, or an exploit that takes advantage of a vulnerability in the mobile device's operating system in authentication process.
What is authentication process?Authentication is the process of verifying the identity of a user or device. It is used to ensure that the person or device attempting to access a system is legitimate. Authentication is typically done through a username and password combination, but can also include biometric data such as fingerprints, retinal scans, or facial recognition. Authentication can also be done through two-factor authentication, which adds an additional layer of security by requiring a second form of identity verification such as a security code sent via text message. Authentication is essential for protecting sensitive data and maintaining system security.
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Which of the following allows for verifying the absence of traffic on a shared transmission medium in 802.3 networks?
a. CDMA (Code-Division Multiple Access)
b. CSMA/CA (Carrier Sense Multiple Access w/ Collision Avoidance)
c. CWDM (Coarse Wavelength Division Multiplexing)
d. CSMA/CD (Carrier Sense Multiple Access/Collision Detection)
d. CSMA/CD (Carrier Sense Multiple Access/Collision Detection)
