the disjoint set data structure will be used in the creation of a maze. the algorithm to do this is discussed in the textbook in chapter 8. details: write a program to generate and display a maze as described in the textbook. the program may either be a command-line program that generates a character-based maze, or it may be a gui program that draws the maze in a window. the user should be able to specify the number of rows and columns in the maze, at least up to 20x20. you must use the disjset class from the textbook to implement the textbook's algorithm. the disjset class must be used as given in the textbook without making modifications to it. since this problem is one from the textbook, it is likely that there are solutions on the internet for it, however, you may not use solutions from the internet in any way on this project. all work must be your own.
Answers
Using the knowledge in computational language in JAVA it is possible to write a code that generate and display a maze as described in the textbook.
Writting the code:import java.awt.*;
import javax.swing.*;
public class MazeSolver extends JPanel implements Runnable
{
public static void main(String[] args)
{
JFrame maze = new JFrame("Maze Solver Game");
maze.setContentPane(new MazeSolver());
maze.pack();
maze.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
maze.setVisible(true);
}
//Take an array named mazeSolver
int[][] mazeSolver;
//creates clr as object of Color class
Color[] clr;
//Number of rows either it is wall or edge
int row = 31;
//Number of columns either it is wall or edge
int col = 41;
//Number of moves between edges and maze
int border = 0;
//time to wait
int timer = 5000;
//Delay to solve maze
int delay = 30;
//size of the block
int size = 12;
//To check whether maze exists or not
boolean MazeComplete = false;
//Sets the backcolor
final static int backcolor = 0;
//Generates walls
final static int walls = 1;
//NextMove used to move to the next step
//either there is path or wall
final static int nextMove = 2;
//WaitingToMove means the path that is
//not visited but it is to be visited
final static int WaitingToMove = 3;
//Means compiler moves from this path but
//did not get the solution
final static int Unsolvedvisit = 4;
//Panel width and height
int wd = -1;
int ht = -1;
//width and height of the panel minus border area
int width;
int height;
//Left and top edges to move
int leftmove;
int topmove;
//Construtor of MazeSolver class
public MazeSolver()
{
//Sets the color to the Maze
clr = new Color[] {
new Color(200,0,0),
new Color(200,0,0),
new Color(128,128,255),
Color.WHITE,
new Color(200,200,200)
};
//Sets background color of the mazeSolver
setBackground(clr[backcolor]);
//Sets size of the mazeSolver
setPreferredSize(new Dimension
(size*col, size*row));
//Start the new thread
new Thread(this).start();
}
//Method mazeSize() to check the size
void mazeSize()
{
//Sets the parameter before call
if (getWidth() != wd || getHeight() != ht) {
wd = getWidth();
ht = getHeight();
int w = (wd - 2*border) / col;
int h = (ht - 2*border) / row;
leftmove = (wd - w*col) / 2;
topmove = (ht - h*row) / 2;
width = w*col;
height = h*row;
}
}
//call protected method paintComponent()
synchronized protected void paintComponent(Graphics g)
{
//Call the parent class paintComponent() method
super.paintComponent(g);
//Call the mazeSize() method.
mazeSize();
//Call draw() method
draw(g);
}
//Define draw() method to draw the maze structure
void draw(Graphics g)
{
// Checks whether maze exists or not
if (MazeComplete)
{
//calculated width of Maze
int w = width / col;
//calculated height of Maze
int h = height / row;
//loop to set color in the complete maze
//either it is visiting or looking for
//path or here is no path to move
for (int j=0; j<col; j++)
for (int i=0; i<row; i++) {
if (mazeSolver[i][j] < 0)
g.setColor(clr[WaitingToMove]);
else
g.setColor(clr[mazeSolver[i][j]]);
g.fillRect( (j * w) + leftmove,
(i * h) + topmove, w, h ); }
}
}
//Run() method solves the maze problem
public void run()
{
//start try-catch block
//Thread wait for a bit
try { Thread.sleep(1000); }
catch (InterruptedException e) { }
//creates maze and call for the solution
while (true)
{
createMaze();
synchronized(this)
{
//try-catch block
try { wait(timer); }
catch (InterruptedException e) { }
}
//Maze solution is false, after checking
//means no solution exists
MazeComplete = false;
repaint();
}
}
//createMaze() method
void createMaze()
{
if (mazeSolver == null)
mazeSolver = new int[row][col];
int i,j;
int rooms = 0;
int square = 0;
int[] wall1 = new int[(row*col)/2];
int[] wall2 = new int[(row*col)/2];
for (i = 0; i<row; i++)
for (j = 0; j < col; j++)
mazeSolver[i][j] = walls;
for (i = 1; i<row-1; i += 2)
for (j = 1; j<col-1; j += 2)
{
rooms++;
mazeSolver[i][j] = -rooms;
if (i < row-2)
{
wall1[square] = i+1;
wall2[square] = j;
square++;
}
if (j < col-2)
{
wall1[square] = i;
wall2[square] = j+1;
square++;
}
}
MazeComplete = true;
repaint();
int n;
for (i=square-1; i>0; i--)
{
n = (int)(Math.random() * i);
setPath(wall1[n],wall2[n]);
wall1[n] = wall1[i];
wall2[n] = wall2[i];
}
for (i=1; i<row-1; i++)
for (j=1; j<col-1; j++)
if (mazeSolver[i][j] < 0)
mazeSolver[i][j] = WaitingToMove;
}
synchronized void setPath(int row, int col)
{
if (row % 2 == 1 && mazeSolver[row][col-1]
!= mazeSolver[row][col+1])
{
fill(row, col-1, mazeSolver[row][col-1],
mazeSolver[row][col+1]);
mazeSolver[row][col]=mazeSolver[row][col+1];
repaint();
try { wait(delay); }
catch (InterruptedException e) { }
}
else if(row % 2 == 0 && mazeSolver[row-1][col] !=
mazeSolver[row+1][col]) {
fill(row-1, col, mazeSolver[row-1][col],
mazeSolver[row+1][col]);
mazeSolver[row][col]=mazeSolver[row+1][col];
repaint();
try { wait(delay); }
catch (InterruptedException e) { }
}
}
void fill(int r, int c, int from, int to)
{
if (mazeSolver[r][c] == from)
{
mazeSolver[r][c] = to;
fill(r+1,c,from,to);
fill(r-1,c,from,to);
fill(r,c+1,from,to);
fill(r,c-1,from,to);
}
}
}
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Related Questions
you have just installed a second and third hard drive into a windows pro workstation. each drive is 500 gb. the user wants to combine the two drives into one 1 tb volume. what should you create from those two drives to accomplish this and give the user a disk read and write performance boost?
Answers
The thing that you can create to accomplish this and also give the user a disk read and write performance boost is option C: A new striped volume
If you have two hard drives, what happens?You can simply expand your storage without replacing current devices by using several hard drives. Backing up is safer. Although a hard drive can be partitioned to behave as if it has numerous hard drives, having multiple physical drives gives you built-in redundancy.
Note that You must construct a spanned, striped, or mirrored volume in order to integrate both hard drives into one volume. In this situation, a mirrored volume would not provide the user with 1 TB of storage because a mirrored volume, like a RAID-1 array, will render one of the disks redundant. A striped volume will provide you a minor performance advantage and is similar to RAID-0.
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See full question below
19. You have just installed a second and third hard drive into a Windows 8.1 workstation. Each drive is 500 GB. The user wants to combine her space into one 1 TB volume. What should you create to accomplish this and also give the user a disk read and write performance boost?
A. A new simple volume
B. A new spanned volume
C. A new striped volume
D. A new mirrored volume
you are the security administrator for your organization. you have implemented a cloud service to provide features such as authentication, anti-malware, intrusion detection, and penetration testing. which cloud service have you most likely implemented?
Answers
The SECaaS cloud service is most likely to be implemented in this case.
Define cloud service.
Cloud computing is the on-demand provision of computer system resources, particularly processing power and data storage, without direct active supervision by the user. Infrastructure, platforms, or software in the cloud is hosted by a third party and made accessible to customers online.
Cloud services make it easier for user data to move from front-end clients (such as servers on users' ends, tablets, desktops, and laptops), across the internet to the provider's systems, and back again. The development of cloud-native apps and the adaptability of working in the cloud are promoted by cloud services.
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in an interview, you are provided the following statements regarding secure protocols. which of the following should you identify as correct? secure ftp (sftp) uses ssl or tls to encrypt commands, while ftp secure (ftps) is an entire protocol itself. x.500 lite is an open protocol, so applications don't need to worry about the type of server hosting the directory. pop3 is a remote email storage service responsible for incoming email, while imap is a store-and-forward service for incoming email. snmpv1 uses community strings that support authentication, while snmpv3 use community strings that support encryption.
Answers
x.500 lite is an open protocol, so applications don't need to worry about the type of server hosting the directory
the difference between sftp and ftps is : SFTP builds on secure shell protocol (SSH) and adds on file transfer capabilities. FTPS builds on file transfer protocol (FTP) and adds on a security and encryption layer. so the statement "secure ftp (sftp) uses ssl or tls to encrypt commands, while secure ftp (ftps) is an entire protocol itself" is considered inappropriate
the meaning of X.500 Protocol is : a protocol (among others) for a client application to access the X. 500 directory. Called the Directory Access Protocol (DAP), it is layered on top of the Open Systems Interconnection (OSI) protocol stack.
the difference between POP3 and IMAP is : POP3 is an abbreviation for Post Office Protocol. IMAP is an abbreviation for Internet Message Access Protocol. The POP is an Internet standard protocol on the application layer that the local email clients use for retrieving emails from any remote server over the TCP/IP connection. so the statement "pop3 is a remote email storage service responsible for incoming email, while imap is a store-and-forward service for incoming email." is considered inappropriate
for the another option, "snmpv1 uses community strings that support authentication, while snmpv3 use community strings that support encryption" it's False because SNPMv3 is the concept of an authentication service (view-based access control) , and SNMPv1 is a framework that control an access and called SNMP MIB view
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Correct handling and operation of office equipment prevents
A. injuries
B. stresses
C. burn - outs
D. ill - treatments
Answers
robert is a black box penetration tester who conducted pen testing attacks on all of the network's application servers. he was able to exploit a vulnerability and gain access to the system. which task should he perform next?
Answers
Robert should carry out privilege escalation using a high-privileged account after utilizing mimikatz to harvest credentials.
What is black box penetration tester?Black box penetration tester is defined as finds a system's weaknesses that can be exploited from outside the network. Millions of people have installed Selenium, which is perhaps the most popular tool for black box testing web apps today.
This indicates that dynamic analysis of systems and applications that are already executing on the target network is a key component of black-box penetration testing. Penetration (Pen) testing aims to find any security system vulnerabilities that an attacker might exploit.
Thus, Robert should carry out privilege escalation using a high-privileged account after utilizing mimikatz to harvest credentials.
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alyssa says that no one would risk selling operable or effective malware programs, even on the dark web. why is she wrong?
Answers
Since Alyssa says that no one would risk selling operable or effective malware programs, even on the Dark Web, the reason she is wrong is that: The U.S. Cyber Command sells malware to catch potential hackers.
What is a malware?A malware simply refers to any type of software program (document or file) that is designed and developed to be intentionally harmful to the host computer, website, server, or network, especially for the purpose of wreaking havoc, disruption, and destruction such as the following:
ZombiesRootkitRATAdwareVirusesWormsTrojan horseSpywareWhat is the Dark Web?In Computer technology, the Dark Web is also referred to as darknet and it can be defined as a subset of the world wide web that is intentionally encrypted from conventional web browser and search engines.
This ultimately implies that, the Dark Web is a peer-to-peer network that requires the use of specialized configuration and web browser such as the sales of malware by the U.S. Cyber Command in order to catch potential hackers.
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Complete Question:
Alyssa says that no one would risk selling operable or effective malware programs, even on the Dark Web. Why is she wrong? Multiple Choice o
The U.S. Cyber Command sells malware to catch potential hackers.
Criminal hackers do make money by selling actual malware.
It is not possible for authorities to track the sale or purchase of malware.
It is not possible for authorities to identify the author of malware.
you are going to develop an r-chart based on range statistics, and you are using a sample size of 15 for your charting purposes. which of the following is the upper control limit d4 factor for the chart?
Answers
Formal parameters in method headers require including the data type for each parameter in source code.
a. true
b. false
Answers
Answer: Option A) True
Explanation:
Let's take an example:
public static int min (int a, int b)
{
if (a <= b)
return a;
else
return b;
}
We divide method into two parts: header and body.
The method header comprises the access modifiers (public static), return type (int), method name (min), and parameters (int a, int b); if this method threw any exceptions, they would appear next.The method body is a block-statement that immediately follows the method header. The parameter names are like variable names; in fact, we often call them parameter variables to make this similarity explicit.When a method is called, its parameter variables are always initialized by matching arguments first. Then, the method body executes, using these values to compute and return its result; it can also any local variables declard in the block to help in its computation.
If we wrote the statement
System.out.println( Math.min(3,5) );
it would display 3. If we had declared int x = 3, y = 8; and wrote the statement
System.out.println(Math.min (3*x+5,y) );
it would display 8
If we wrote the statement
System.out.println( Math.min(3,5) );
it would display 3. If we had declared int x = 3, y = 8; and wrote the statement
System.out.println(Math.min (3*x+5,y) );
it would display 8
Generally, We call a method by writing its name, followed in parentheses by its arguments (one for each parameter in the method's header) As in the header (where parameters are separated by commas), arguments are are separated by commas as well. When we call a method, Java first evaluates each argument (each can be a simple or complicated expression) and transmits or passes it to its matching parameter; this just means that Java uses each argument's value to initialize it matching parameter in the method. It is equivalent to writing first-parameter = first-argument, then second-parameter = second-argument, etc.
Thus, when calling Math.max(3*x+5,y) above, the first parameter (a) is initialized by the value 14 (3*x+5: the equivalent of a = 3*x+5). Likewise, the second parameter (b) is initialized by the value 8 (y: the equivalent of b = y). Then, Java executes the body of the method, which typically performs some computation using these initialized parameters. It finally returns a result.
suppose you want to estimate the proportion of students at a large university that approve of the new health care bill. from an srs of 1000 university students, 778 approve of the health care bill. how do you find the margin of error for a 99% confidence interval for p? what is the missing piece in the following formula? margin of error
Answers
The margin of error here is 0.034.
What is margin of error?
The margin of error is a statistic that expresses the amount of random sampling error in survey results. The greater the margin of error, the less confident one should be that a poll result will accurately reflect the results of a population census. When a population is incompletely sampled and the outcome measure has positive variance, or when the measure varies, the margin of error will be positive.
Multiplying a key factor (for a specific confidence level) and the population standard deviation yields the calculation for the margin of error. The outcome is then divided by the square root of the sample's number of observations.
Mathematically, it is represented as,
Margin of Error = Z * ơ / √n
For a 99% confidence level, the critical factor or z-value is 2.58 i.e. z = 2.58.
[tex]M.E = 2.58\sqrt{\frac{0.778(1-0.778)}{1000} }[/tex]
M.E. = 0.034
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sources of data with examples each
Answers
What do you mean by that? Please let me know and I'll try my best to help you with your question, thanks!
from which os did windows xp evolve?
Answers
Answer: Windows 2000
Explanation: I researched it and multiple sites said that it was Windows 2000.
Hope this helps!!! :)
refers to the systematic way in which words are combined and sequenced to make meaningful phrases and sentences in a given language. group of answer choices semantics special relativity general relativity pragmatics syntax
Answers
Syntax, a systematic way in which words are combined and sequenced to make meaningful phrases and sentences in a given language
Syntax is a set of principles that define the order of words, clauses, and phrases to form appropriate sentences in a given language..
in other hand, Semantic is the study of meaning in language or the study of the meaning of sentences,
Pragmatics is the study of the meaning of sentences within a certain context.
so the relativity between syntax, semantic, and Pragmatic is Syntax is what we use to do our best to communicate on the most basic level (with order of words, clauses, and phrases). Semantics help determine if it makes sense. Pragmatics allows us to apply the right meaning to the right situation.
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fault tolerant information systems offer 100 percent availability because they use: group of answer choices dedicated phone lines. high-capacity storage. redundant hardware, software, and power supplies. a digital certificate system. a multitier server network.
Answers
Fault-tolerant information systems offer 100 percent availability because they use: " redundant hardware, software, and power supplies" (Option C)
What is a Fault-tolerant information system?The ability of a system (computer, network, cloud cluster, etc.) to continue working without interruption when one or more of its components fail is referred to as fault tolerance.
The goal of developing a fault-tolerant system is to reduce interruptions caused by a single point of failure, while also assuring the high availability and business continuity of mission-critical systems or programs.
In cloud computing, fault tolerance is creating a plan for continuing current work when a few components fail or become unavailable. This allows businesses to assess their infrastructure needs and requirements, as well as deliver services when the connected devices are unavailable due to a variety of factors.
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in the manner of figures 8.17b and 8.18b, indicate the location in the vicinity of an edge dislocation at which an interstitial impurity atom would be expected to be situated. now briefly explain in terms of lattice strains why it would be situated at this position.
Answers
It will be in the position because there will be a net reduction in lattice strain energy when the lattice strains cancel tensile strains that are associated with the edge dislocation
What is a compressive strain?The deformation in a solid caused by the application of compressive stress is defined as compressive strain in an elastic material. In other words, compressive strain occurs when a body's length decreases due to equal and opposite forces attempting to compress it.
The impurity atom introduces compressive lattice strains. When these lattice strains partially cancel tensile strains associated with the edge dislocation, there will be a net reduction in lattice strain energy; such tensile strains exist just below the bottom of the extra half-plane of atoms (as shown in the below figure).
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you work as a network administrator for xyz. you enable powershell remoting on a computer that runs windows 10. you need to limit which powershell cmdlets can be used in a remote session. which of the following actions should you perform in sequence to accomplish this?
Answers
Actions to be performed sequentially to restrict PowerShell cmdlets:
Run the NewPSSession cmdletRun the Register-PSSessionConfiguration cmdletRun the New-PSSessionConfigurationFile cmdletWhat is PowerShell?PowerShell is a command line interface (CLI) that forms a command line interface and scripting language developed by Microsoft, for task automation and configuration management. PowerShell or Windows PowerShell is known as Microsoft Shell or MSH. Almost similar to the UNIX shell operating system, but PowerShell is built based on OOP or Object-Oriented Programming and the Microsoft .NET design. which has a very broad scope.
PowerShell commands are known as cmdlets, which are commands used in the Windows PowerShell environment. Furthermore, there are dozens of parameters and methods that can maximize scripts in PowerShell.
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If an equipment SCCR is conditional on a specific type of OCPD and ampere rating, be sure to field install that specific OCPD and ampere rating in the supply circuit to the equipment. True or False
Answers
If an equipment SCCR is conditional on a specific type of OCPD and ampere rating, be sure to field install that specific OCPD and ampere rating in the supply circuit to the equipment is a true statement.
What is SCCR condition?Electrical panels for industrial machinery must be developed and designed with the correct SCCR in order to maintain the system, save downtime, and improve worker safety. This essay aims to clarify its significance and how to locate the necessary computations.
Short-Circuit Current Rating (SCCR) is defined as "the anticipated symmetrical fault current at a nominal voltage to which an apparatus or system is able to be connected without sustaining damage exceeding stated acceptability requirements" in Article 100 of the 2017 NEC (National Electric Code).
The maximum short-circuit current that an electrical component can safely withstand without posing a shock or fire hazard is known as SCCR.
Therefore, If an equipment SCCR is conditional on a specific type of OCPD and ampere rating, be sure to field install that specific OCPD and ampere rating in the supply circuit to the equipment is a true statement.
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A new computer has been added to the Sales department and needs to be joined to the CorpNet domain.
Which of the following System Properties settings MUST be used to make the change?
System Properties > Computer Name
System Properties > Advanced
System Properties > System Protection
System Properties > Remote
Answers
The following System Properties settings must be used to make the change is System Properties > Computer Name. Hence option a is correct.
What is computer?
Computer is defined as a digital electrical device that can be configured to automatically perform logical or mathematical operations in sequences. Programs are generic sets of operations that can be carried out by modern computers. It is a crucial tool for scientific students, who frequently use it to create reports and projects for school.
For setting of new computer the system properties must be changed as per the person requirement and the name of the the computer also changed.
Thus, the following System Properties settings must be used to make the change is System Properties > Computer Name. Hence option a is correct.
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after previewing and cleaning your data, you determine what variables are most relevant to your analysis. your main focus is on rating, cocoa.percent, and company. you decide to use the select() function to create a new data frame with only these three variables. assume the first part of your code is: trimmed flavors df <- flavors df %>% add the code chunk that lets you select the three variables.
Answers
According to the information given, "Forastero" is the bean type that can be found in row six of the dribble and trimmed flavors df <- flavors df %>%
Is the first part of the code.
What is data?
Information that has been altered into a format that can be sent or processed by computers is referred to as data.
In terms of today's computers and transmission technologies, data is information that has been converted into binary digital form. Data may be used as either a singular or plural topic.
Your code's first line is:
flavors df%>% trimmed flavors df
add the section of code that enables you to choose among the three variables.
select(Rating, Cocoa.Percent, Company.Location) (Rating, Cocoa.Percent, Company.Location)You add the code block select to choose the three variables (Rating, Cocoa.Percent, Company.Location). The proper code is taken out. tastes df% and _tastes df% Choose the percentages for (Rating, Cocoa.Percent, and Company.Location). This part of the code:The choose() function allows you to select specified variables for your new data frame.You pass as an input to choose the variables you want to choose their names. Company, location, percentage cocoa rating.Your tibble's first row lists France as the company's location.
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given main() and a base book class, define a derived class called encyclopedia. within the derived encyclopedia class, define a printinfo() function that overrides the book class' printinfo() function by printing not only the title, author, publisher, and publication date, but also the edition and number of volumes.
Answers
The code for the program related to the book database is:
#include <iostream>
using namespace std;
class book {
protected:
string title;
string author;
string publisher;
int publicationDate;
public:
book(string t, string a, string p, int d) {
title = t;
author = a;
publisher = p;
publicationDate = d;
}
void printInfo() {
cout << "Title: " << title << endl;
cout << "Author: " << author << endl;
cout << "Publisher: " << publisher << endl;
cout << "Publication Date: " << publicationDate << endl;
}
};
class encyclopedia : public book {
private:
int edition;
int numVolumes;
public:
encyclopedia(string t, string a, string p, int d, int e, int n) : book(t, a, p, d) {
edition = e;
numVolumes = n;
}
void printInfo() {
cout << "Title: " << title << endl;
cout << "Author: " << author << endl;
cout << "Publisher: " << publisher << endl;
cout << "Publication Date: " << publicationDate << endl;
cout << "Edition: " << edition << endl;
cout << "Number of Volumes: " << numVolumes << endl;
}
};
int main() {
book b1("Moby ", "Herman Melville", "Harper and Brothers", 1851);
encyclopedia e1("The Encyclopedia", "David MacDonald", "Facts on File", 1984, 2, 3);
b1. printInfo();
e1. printInfo();
return 0;
}
Code explanation:The code above defines a base book class and a derived encyclopedia class. The derived encyclopedia class overrides the book class ' printInfo() function by adding the edition and number of volumes to the information that is printed.
When the code is run, the following output is displayed:
Title: MobyAuthor: Herman MelvillePublisher: Harper and BrothersPublication Date: 1851Title: The Encyclopedia of MammalsAuthor: David MacDonaldPublisher: Facts on FilePublication Date: 1984Edition: 2Number of Volumes: 3Learn more about programming:
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Which carrier sense technology is used on wireless networks to reduce collisions?.
Answers
you are the network administrator for your organization. you are away from the office on a business trip, and some problem occurs with the server with resources that requires the server to be updated urgently. which of the following options will you use to accomplish this?
Answers
The best option would be to use a VPN so that you can connect to the server and make the necessary changes.
Benefits of VPN: A VPN can provide a higher level of security than a standard connectionA VPN can encrypt all data traffic between your computer and the VPN serverA VPN can hide your real IP address and make it difficult for third parties to track your online activityWhat is a VPN?A VPN (virtual private network) is a private network that uses a public network (usually the Internet) to connect remote sites or users together. VPNs use "virtual" connections routed through the Internet from the organization's private network to the remote site or employee.
Missing Options:
1. Use a remote management tool to connect to the server and update the resources.2. Use a VPN to connect to the server and update the resources.3. Use a dial-up connection to connect to the server and update the resources.4. Use a proxy server to connect to the server and update the resources.Learn more about the VPN :
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having poor software development practices and failing to program input validation checks during development of custom software can result in a system vulnerable to which type of attack?
Answers
Poor software development practices, such as failing to program input validation checks during custom software development, can expose a system to a buffer overflow attack.
What is a Buffer overflow vulnerability?
Attackers take advantage of buffer overflow issues by overwriting an application's memory. This alters the program's execution path, resulting in a response that damages files or exposes private information. An attacker, for example, may insert extra code into the application, sending new instructions to gain access to IT systems.
If an attacker knows a program's memory layout, they can intentionally feed input that the buffer cannot store and overwrite areas that contain executable code with their own code. To gain control of a program, an attacker can, for example, overwrite a pointer (an object that points to another area in memory) and point it to an exploit payload.
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Identify the correct declaration of an array of strings.
a.char stringArr[10][50];
b.char stringArr[10];
c.stringArr[10][50];
d.char[50] stringArr[10];
Answers
The correct declaration of an array of strings is as 'char stringArr[10][50];' Thus, option A i.e. 'char stringArr[10][50];' is the correct answer.
The expression 'char stringArr[10][50];' is the representation of an array of strings using a two-dimensional or 2D char array. The two-dimensional array provides the declaration of an array of strings in C++. So in option A, a two-dimensional char array is used to declare string-type elements in an array. The two-dimensional char array creates and stores elements of a string array at static or compile-time i.e. the size and number of elements stay remain constant.
The syntax for the declaration of an array of strings is as follows:
char array_name[number_of_elements][maximum_size_of_string];
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(9 pts) what are the cidr addresses for a network if all its addresses start with 145.98? and if this network has exactly two subnets, what are the cidr addresses for each of its subnets?
Answers
The cidr addresses for each of its subnets are 145.98.0.1 to 145.98.127.255 and 145.98.128.1 to 145.98.255.255.
What is a network?A network is a collection of two or more computers or other electronic devices that are linked together to exchange data and share resources.
It should be noted that 145.98 = 10010001.01100010
Then there are 2^(32-16) = 2^16 addresses possible. The range of addresses is from 145.98.0.1 to 145.98.255.255
If there are 2 subnets, 1 bit will be used for the subnet. So each subnet will have 2^32-17 = 2^15 addresses.
For subnet 1 range of IP shall be 145.98.0.1 to 145.98.127.255
For subnet 2, the range of IP shall be 145.98.128.1 to 145.98.255.255
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-2
Write a program that contains a function that takes in a 2D list and an integer as parameters. The integer represents the limit of the values inside the list. The function should change any value in the list that is greater than that limit to be equal to limit, and any values less than -limit to be equal to -limit. For example, if the limit is 200, it should change 250 to 200, it should change -300 to -200, and leave any values between -200 and 200 unchanged. Finally, the function should print the resulting list. Ask the user for 25 integers, put them in a 5x5 list, ask the user for the limit, then call the function and output the result.
Answers
Answer:
The integer represents the limit of the values inside the list. The function should change any value in the list that is greater than Explanation:
How does the brain influence your emotions, thoughts, and values? A) it rejects sensory signals. B) It controls your reaction to emotions C) It assesses the cost sensory signals D) It makes you forget any prior memories
Answers
The brain influence your emotions, thoughts, and values as it rejects sensory signals. The correct option is A.
What are sensory signals?A sensory activation tends to occur when a physical or chemical stimulus is processed by a sensory receptor into a neural signal (sensory transduction).
Chemical messengers such as serotonin and dopamine are used to send signals across the network.
These signals are received by brain regions, resulting in us recognizing objects and situations, assigning emotional value to them to guide behavior, and making split-second risk/reward assessments.
Thus, the correct option is A.
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What is printed by the following program?
function product(x, y){ return x * y; } function difference(x, y){ return x - y; } function start(){ var x = 2; var y = 5; var value1 = product(x, y); var value2 = difference(y, x); var result = difference(value1, value2); println(result); }
7
-7
13
-13
Answers
The useful product (x,y).The PRODUCT function multiplies each number provided as an input before returning the result.
What does a formula produce?
The product function multiplies each number provided as an input before returning the result. For instance, you can multiply two integers in cells A1 and A2 together by using the formula =PRODUCT(A1, A2).The def keyword in Python is used to define a function. The function name, parentheses, and a colon are then written after the function name. The next step is to ensure that you indent with a tab or four spaces, after which you must explain what you want the function to accomplish for you.A function's output is referred to as its return value, and the data type of the return value is referred to as the return type.To learn more about Product function refer to:
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at the start of your shift how would you check to see where you're working and who your back up is
Answers
Check the myWorkstation: Assignment Tool at the start of your shift .
What is Assignment tool?
Online assignment creation, distribution, collection, and grading are all made possible via the Assignments tool for teachers. Individual student submissions and grades are kept confidential between the student and the instructor, and they are not shared with other students.
What is Workstation?
Instructors can create, distribute, collect, and grade assignments online using the Assignments tool. Assignments are confidential between the student and the teacher; other students cannot see any individual student submissions or grades.
When we at our starting shift ,we should check our workstation and the assignment tool is our backup because everyday we work on the same workstation which we were alloted and the works are given through some of the assignment tool like checklist, Grading Guide, etc.
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you are working as a network engineer at shell info. the organization uses cisco's ios on all of its workstations. the network administrator has asked you to use the route utility to delete some static routes used by the router. which of the following commands will you use in this scenario?
Answers
Since You are working as a network engineer at Shell Info, the commands that you can use in the above scenario is option D: show ip route.
What does the command show ip route do?The show of the router interface where the most recent update was received as well as the IP address of the router that is the next hop in reaching the remote network.
The IPv4 routing table of a router is seen using the show ip route command on a Cisco router. A router offers extra route details, such as how the route was discovered, how long it has been stored in the table, and which particular interface should be used to reach a predetermined location.
Therefore, in display IP route: In this case, the command should be executed at the CLI in privileged EXEC mode.
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See full question below
You are working as a network engineer at Shell Info. The organization uses Cisco's IOS on all of its workstations. The network administrator has asked you to use the route utility to delete some static routes used by the router. Which of the following commands will you use in this scenario?
route print
route
show running-config
show ip route
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Answers
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