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If you are on the phone with a customer who is being rude and disrespectful, you need to stop listening and hang up the phone.
A) TrueB) False
Answer:
False.
Explanation:
False.
As a customer service representative, it is important to remain calm and professional, even when dealing with a rude and disrespectful customer. Hanging up the phone without attempting to resolve the issue could escalate the situation further and may result in a negative customer experience.
Instead, the representative should try to diffuse the situation by listening actively, empathizing with the customer's frustrations, and attempting to find a solution to the problem. If the customer continues to be abusive or uncooperative, the representative can politely inform the customer that they will not tolerate the behavior and may need to escalate the issue to a supervisor or manager. However, hanging up the phone should not be the first course of action.
seat booking program in java
Answer:
import java.util.Scanner;
public class SeatBookingProgram {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
int rows = 5;
int cols = 10;
boolean[][] seats = new boolean[rows][cols];
int availableSeats = rows * cols;
// Initialize all seats as available
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
seats[i][j] = true;
}
}
while (availableSeats > 0) {
// Print the seating chart
System.out.println("Seating Chart:");
for (int i = 0; i < rows; i++) {
for (int j = 0; j < cols; j++) {
if (seats[i][j]) {
System.out.print("O ");
} else {
System.out.print("X ");
}
}
System.out.println();
}
// Prompt the user to select a seat
System.out.print("Select a seat (row, column): ");
int selectedRow = input.nextInt();
int selectedCol = input.nextInt();
// Check if the seat is available and book it if so
if (seats[selectedRow - 1][selectedCol - 1]) {
seats[selectedRow - 1][selectedCol - 1] = false;
availableSeats--;
System.out.println("Seat booked successfully.");
} else {
System.out.println("Seat already booked. Please select another seat.");
}
}
System.out.println("All seats have been booked.");
}
}
Explanation:
In this program, the seating chart is represented as a 2D boolean array where true indicates that a seat is available and false indicates that a seat is booked. The program initializes all seats as available, then enters a loop where it displays the seating chart, prompts the user to select a seat, and books the selected seat if it is available. The loop continues until all seats have been booked. At the end, the program displays a message indicating that all seats have been booked.
There are several considerations in deciding on a candidate system. What are they? Why are they important?
The behavioral elements include the user's prior experience with the current system, the analyst's track record of success, and the user's ability to persuade senior management to fund a potential system. The economic factor is the most crucial criterion for choosing a project.
What variables influence the economy?The economy is influenced by a number of economic elements, such as interest rates, tax rates, laws, policies, wages, and governmental actions. These variables affect the investment value even though they are not directly related to the company. Economic factors are basic market or economy-related information that affects how well businesses function. When predicting how well a corporation will succeed, such characteristics are frequently taken into account. A company's or an investment's worth is determined by investors using economic variables as well. Land, labor, capital, and entrepreneurship are the four primary drivers of economic expansion.The four components of human resources, physical capital, natural resources, and technology all have a role in the development and expansion of the economy, according to economists in general. Governments that prioritize these issues are seen in highly developed nations.To learn more about economic factor, refer to:
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The company is especially concerned about the following:
Account management. Where will accounts be created and managed?
How will user authentication be impacted? Will users still be able to use their current Active Directory credentials to sign into their devices and still access resources on the local Active Directory network?
Securing authentication in the cloud.
Address the following based on the given information:
Explain how you can implement a Microsoft Intune device management solution and still allow Tetra Shillings employees to use their existing on premises Active Directory credentials to log onto the local network.
What controls and methods are available Azure Active Directory and Intune for controlling access to resources?
What Methods are available in Intune to detect when user accounts get compromised.
What actions can be taken to prevent compromised credentials from being used to access the network.
If someone finds a vulnerability in your network, what can this let them do
Answer:
If someone finds a vulnerability in your network, it can potentially allow them to gain unauthorized access to your system, steal sensitive information, modify or delete data, install malware or viruses, and disrupt your network operations. The specific actions that an attacker can take depend on the nature of the vulnerability and the security measures in place. It is important to promptly address any vulnerabilities that are discovered and implement appropriate security controls to prevent future attacks. This may include patching software, updating security configurations, and conducting regular security assessments to identify and mitigate potential risks.
What phase or step of the Qualys vulnerability Management Lifecycle,produces scan results containing vulnerability findings?
Answer:
The Scanning phase of the Qualys Vulnerability Management Lifecycle produces scan results containing vulnerability findings.
Need help creating external css webpage, if you have knowledge please comment
Creating a CSS External Style Sheet
Start with an HTML document with an embedded style sheet, like this one.Save a new file as StyleSheet after creating it.Place all CSS rules in the StyleSheet rather than the HTML file.Delete the HTML file's style block.Why does CSS exist on websites?The display of Web pages, including their colours, design, and fonts, is described using the CSS language. It enables the presentation to be customised for various display formats, including big screens, tiny screens, and printers. The usage of CSS with any XML-based markup language is possible because it is not dependent on HTML.By typing about:flags into the address bar, you can first enable inspections. Then, select Display "View Source" and "Inspect Element" in the context menu. Then, right-click on the element to inspect its CSS selectors, and pick Inspect Element from the context menu. CSS and HTML. Create static web pages and web applications using the markup language HTML. For the appearance of markup-language-written documents, a style sheet language called CSS is used.To learn more about css webpage, refer to:
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A. Write an application where the main method holds two double variables. Assign values to the variables. Pass both variables to a method named computePercent() that displays the two values and the value of the first number as a percentage of the second one. Save the file as Percentages.java. Example: If the numbers are 2.0 and 5.0 Output: 2.0 is 40 percent of 5.0.
B. Modify the program above (Percentages.java) to accept values of the two doubles in the main method from a user at the keyboard. Save the file as UserPercentages.java. Output: Enter in two numbers: 2.0 5.0 2.0 is 40 percent of 5.0
To read input from the keyboard, we first import the Scanner class in the changed code. The user is then prompted to enter two digits using a Scanner object that we construct and call input.
What would be the code for the program?The nextDouble() method is used to read in the numbers, which are then assigned to the num1 and num2 variables. Lastly, we use the same approach as before and provide these variables to the computePercent() method. The result should be the same as before, but instead of using hardcoded values, it should use the values given by the user.
public class Percentages {
public static void main(String[] args) {
double num1 = 2.0;
double num2 = 5.0;
computePercent(num1, num2);
}
public static void computePercent(double num1, double num2) {
double percent = (num1 / num2) * 100;
System.out.println(num1 + " is " + percent + " percent of " + num2);
}
}
import java.util.Scanner;
public class UserPercentages {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("Enter in two numbers: ");
double num1 = input.nextDouble();
double num2 = input.nextDouble();
computePercent(num1, num2);
}
public static void computePercent(double num1, double num2) {
double percent = (num1 / num2) * 100;
System.out.println(num1 + " is " + percent + " percent of " + num2);
}
}
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Can some one help me right a 3 paragraph sentace on iPhone and androids specs it has too be 7 sentaces each paragraph
Answer:
iPhone
The iPhone has come a long way since its first model, the iPhone 3G. Now, the current iPhone 11 Pro Max comes with a 6.5-inch Super Retina XDR OLED display, a triple-camera system, and up to 512GB of storage. It has a powerful A13 Bionic chip with a neural engine and is powered by a 3,969 mAh battery. With its dual-SIM support and 5G capability, the iPhone is a great choice for those who want the latest and greatest in mobile technology.
Android
Android phones come in a wide range of specs and sizes, so there’s something for everyone. The current top-of-the-line Android phone is the Samsung Galaxy S20 Ultra 5G, which boasts a 6.9-inch Dynamic AMOLED display, a triple-camera system, and up to 512GB of storage. It has a Qualcomm Snapdragon 865 processor and is powered by a 5,000 mAh battery. With its dual-SIM support and 5G capability, the Android phone offers a great mix of performance and features.
Comparison
When it comes to specs, the iPhone and Android phones offer a comparable experience. Both come with powerful processors and large displays, as well as dual-SIM support and 5G capability. The main differences are in design and the camera systems. The iPhone has a unique design and a triple-camera system, while Android phones come in a variety of shapes and sizes, and often feature four or more cameras. The choice ultimately comes down to personal preference.
Given integer variables seedVal and sidesNum, output two random dice rolls. The die is numbered from 1 to sidesNum. End each output with a newline.
Ex: If sidesNum is 12, then one possible output is:
5
12
Answer:
#include <stdio.h>
#include <stdlib.h>
int main() {
int seedVal;
int sidesNum;
scanf("%d%d", &seedVal, &sidesNum);
srand(seedVal);
int dice1 = (rand() % sidesNum) + 1;
int dice2 = (rand() % sidesNum) + 1;
printf("%d\n%d\n", dice1, dice2);
return 0;
}
Digital cameras store photograph on
A. Image sensors
B. Camera lenses
C. Memory cards
D. Viewfinders
Answer:
Digital still cameras store photographs as digital bits on a memory card or tiny hard drive, as opposed to the film used in traditional cameras. Rather than developing and printing film, digital images can be downloaded easily to a computer.
Explanation:
b option
Can AI control humans???
Please respond to this email with 3-5 sentences on the topic of your choice from the two options. This is a quick and easy grade.
Choose one of the two listed prompts below:
#1 How can we use the applications in MS Office (Word, Excel PowerPoint) to help us run a productive business. (Keep in mind the lesson on choosing the right tools and communicating effectively).
#2 We learned about different types of charts to present research and data. How would you use charts to analyze your profits/losses in a business.
Answer:
Explanation:
#1: MS Office applications such as Word, Excel, and PowerPoint can be powerful tools for running a productive business. By choosing the right tool for each task and communicating effectively, businesses can increase efficiency and productivity. For example, Word can be used for writing reports and proposals, Excel can be used for data analysis and tracking expenses, and PowerPoint can be used for creating presentations and training materials. Effective communication using these tools can help ensure that everyone on the team is on the same page and working towards the same goals.
#2: Using charts to analyze profits and losses in a business can help identify trends and make informed decisions. Line charts can be used to show changes in revenue over time, while pie charts can be used to show the breakdown of expenses by category. Bar charts can be used to compare profits and losses across different time periods or departments. By analyzing this data using charts, businesses can make informed decisions about where to focus their efforts and resources, ultimately leading to increased profitability and success.
For the United States, the outlook is bleak both at the international and domestic levels: severe consequences from climate catastrophe, growing political and military threats from Russia in Europe, and fierce competition from China in the East. At home, the United States faces a severe weakening of its political system.
This is a statement about the challenging outlook for the United States. It highlights several areas of concern, both domestically and internationally.
What is the justification for the above statement about the US?At the international level, the statement mentions the severe consequences of climate change, which can have a range of impacts on ecosystems, economies, and societies.
It also points to growing political and military threats from Russia in Europe, which can have implications for global security. In addition, the statement mentions fierce competition from China in the East, which can impact economic and geopolitical dynamics.
At the domestic level, the statement highlights a severe weakening of the United States' political system, which can have implications for governance and the ability to address challenges both at home and abroad.
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Full Question:
Although part of your question is missing, you might be referring to this full question:
Comment on the statement:
For the United States, the outlook is bleak both at the international and domestic levels: severe consequences from climate catastrophe, growing political and military threats from Russia in Europe, and fierce competition from China in the East. At home, the United States faces a severe weakening of its political system.
Differentiate between man – made information system and formal information system.
Answer:
A man-made information system is a type of information system that is created and maintained by individuals or groups of people for their specific needs. It is often developed using manual processes, such as paper forms, spreadsheets, or customized software tools, and is usually designed to meet specific business requirements or personal needs.
On the other hand, a formal information system is a type of information system that is designed and maintained by professional IT staff, using formal methodologies and processes. It is often based on computer technology, and includes software applications, hardware devices, and networking infrastructure. Formal information systems are typically used by organizations or businesses to manage their operations, support decision-making processes, and store and process large volumes of data.
In summary, the key differences between man-made information systems and formal information systems are:
Development: Man-made information systems are created and maintained by individuals or groups of people, while formal information systems are designed and maintained by professional IT staff.Methodologies: Man-made information systems are often developed using manual processes, while formal information systems use formal methodologies and processes.Technology: Man-made information systems may use a variety of technologies, while formal information systems are typically based on computer technology.Purpose: Man-made information systems are often designed to meet specific business requirements or personal needs, while formal information systems are used by organizations to manage their operations and support decision-making processes.
Explanation:
For each of these conditions— deadlock, race, and starvation—give at leasttwo “real life” examples (not related to a computer system environment) ofeach of these concepts. Then give your own opinion on how each of these sixconditions can be resolved.
Answer:
Explanation:
Deadlock:
Two cars are approaching an intersection from different directions, both needing to turn left but the traffic is too heavy, and neither can proceed until the other does.
Two friends borrow each other's books and refuse to return them until the other returns their book first.
To resolve deadlock, techniques such as detecting deadlock and breaking the circular wait by releasing resources can be used. For example, in the case of the intersection, a traffic management system can detect the deadlock and break the deadlock by directing one car to move first.
Race:
Two kids are competing to finish their homework first and get a reward.
Several runners in a marathon race are competing to reach the finish line first.
To resolve race conditions, techniques such as locking mechanisms, synchronization, and mutual exclusion can be used. For example, in the case of the homework, the teacher can use a timer to ensure that both kids finish their homework at the same time.
Starvation:
A busy restaurant has a limited number of tables, and some customers may have to wait for a long time to get a table.
In a large company, some employees may never get a promotion or a pay raise despite their hard work and dedication.
To resolve starvation, techniques such as fair scheduling, prioritization, and resource allocation can be used. For example, in the case of the restaurant, a reservation system can be implemented to ensure that customers are served in an orderly and timely manner.
In general, resolving these conditions requires careful planning, design, and implementation of systems and processes to ensure fairness, efficiency, and effectiveness. It is important to identify and address these conditions early on to avoid negative impacts on productivity, customer satisfaction, and organizational success.
Select the correct answer.
Which statement best describes a website builder?
A. an application that enables code editing to create a unique website
B.
a tool that enables developers to create web apps without programming knowledge
C.
a tool that enables developers to create websites without programming knowledge
D. an application that automatically applies HTML tags to text
The statement that best describes a website builder is option C. a tool that enables developers to create websites without programming knowledge
What is programming?A website builder is a software tool that allows individuals or organizations to create websites without the need for advanced technical skills or knowledge of programming languages.
Website builders are designed to simplify the website creation process by providing an intuitive drag-and-drop interface and pre-designed templates that users can customize with their own content.
Therefore, With a website builder, users can create and edit web pages, add images and videos, and customize the design and layout of their website without needing to write code.
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According to O*NET, what is the projected growth for this career over the next ten years?
Answer: Average
Explanation:
Every programming language has rules governing its word usage and punctuation.
True
False
Answer:
False. Every programming language has syntax rules governing its word usage and punctuation.
Making sure that every employee has a stake in customer happiness is the best way to ensure:
A) Lower marketing research costsB) Lower employee turnoverC) That you are creating a customer-centric corporate cultureD) A higher percentage of market share
Answer: C) That you are creating a customer-centric corporate culture
That you are creating a customer-centric corporate culture is the best way to ensure customer happieness.
What is Corporate culture?
Corporate culture is the set of values and practices that guide how management and employees should work together and interact inside an organization.
It may have an impact on staff recruitment and retention, productivity, financial success, and long-term viability of the organization. International trade, economic trends, national cultures and traditions, company size, and goods all have an impact on corporate culture.
A company's corporate culture embodies its guiding principles in both theory and practice. Clan culture, adhocracy culture, market culture, and hierarchical culture are the four different forms of business cultures.
Therefore, That you are creating a customer-centric corporate culture is the best way to ensure customer happieness.
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discuss the implementation and use of the dark web
Answer:
The dark web is a part of the internet that is not indexed by search engines and is only accessible through specialized software or configurations. It is often associated with illegal activities such as drug trafficking, weapons trading, and cybercrime, and has also been used for activities such as whistleblowing and political activism. Here are some points to consider regarding the implementation and use of the dark web:
Implementation: The dark web is implemented through the use of specialized software such as Tor, I2P, or Freenet, which enables users to access hidden services and websites that are not available on the clear web. These software applications use encryption and routing techniques to provide anonymity and protect users’ privacy.
Anonymity: The anonymity provided by the dark web is often cited as one of its key benefits, as it enables users to communicate and transact without being identified. However, this anonymity can also be abused by criminals to engage in illegal activities such as drug trafficking, money laundering, and terrorism.
Law enforcement: The use of the dark web for illegal activities has led to increased law enforcement attention, and there have been several high-profile arrests of dark web criminals. However, the nature of the dark web makes it difficult for law enforcement to track down and prosecute offenders.
Privacy: The dark web has also been used for activities such as whistleblowing and political activism, where users may want to protect their identities and communicate securely. In these cases, the anonymity provided by the dark web can be a valuable tool for protecting free speech and democratic values.
Risks: The dark web is associated with several risks, including exposure to illegal content, malware, and scams. Users should exercise caution when accessing the dark web and take steps to protect their privacy and security.
Overall, the implementation and use of the dark web are complex and multifaceted issues that involve a range of technical, legal, and ethical considerations. While the dark web can be used for legitimate purposes, it is also associated with illegal activities and poses risks to users who are not careful
Explanation:
Write a short paragraph about the importance of electrical energy
It is used in homes for things like running fans, electric stoves, air conditioning, and lighting up spaces. All of these offer solace to people. In factories, large machines are run by electricity. Food, clothing, paper, and other essentials are among the many products made possible by electricity.
What is a electrical energy?Energy converted from other energy sources, such as mechanical, thermal, or chemical energy, is known as electric power. For many purposes, such as lighting, computer operation, propulsion, and entertainment, electric energy is unmatched. An atom's charged particles can move an item or start an action by using electrical energy. Electrical energy is produced by the transfer of electrons from one atom to another. A toaster or a phone charger is powered by electricity each time you plug them into a wall outlet.People utilise electricity for a variety of purposes, including running machines, computers, electronics, appliances, and public transportation systems as well as for lighting, heating, cooling, and refrigeration.To learn more about electrical energy, refer to:
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What will be the output of the following program segment? X=Mountain, Y=Molehill, Console.Writeline (X+Y)
The result of the next programme segment is y = 6.
What is meant by program segment?An object file or the corresponding area of the virtual address space of the programme that includes executable instructions is referred to as a code segment in computing, often known as a text segment or simply as text. Data of a particular type is utilised to fill each segment. The programme stack is kept in a third segment, while the data components are kept in another segment and the instruction codes are kept in the first.Text, data, and system data segments all exist within an executable program's process. The text and data segments are the components of a process' address space. Though it is a component of the process, the system is responsible for maintaining the system data segment, which the process can only access through system calls.The complete question is:
What is the output of the following program segment?
int x,y;
y = 0;
for (x = 1; x <= 5; x++)
y++;
y++;
System.out.println("y = " + y);
a) y = 5, b) y = 6, c) y = 10, d) y = 11, e) y = 12
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Explain the following terms and how they relate to mobile technology
Answer: Mobile technology refers to the technology used in mobile communication devices such as smartphones
Explanation:
Mobile technology refers to the technology used in mobile communication devices such as smartphones, tablets, and wearable devices. Mobile technology allows users to access information and communication services on the go, anywhere and anytime.
Mobile technology has evolved rapidly over the years, leading to the development of various applications and services that have transformed the way we communicate, work, and entertain ourselves. Some of the key features of mobile technology include:
Portability: Mobile devices are designed to be portable and can be carried around easily, making them convenient for use while on the move.
Connectivity: Mobile technology allows users to stay connected to the internet, enabling them to access various services and applications.
Personalization: Mobile devices can be customized to suit individual preferences, with various settings and features that can be tailored to the user's needs.
Location-based services: Mobile technology allows for the delivery of location-based services, such as navigation and weather updates.
Overall, mobile technology has revolutionized the way we interact with the world around us, making information and communication more accessible and convenient. It has also opened up new opportunities for businesses and individuals to connect and engage with their target audience.
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Discuss and compare the various grouping and consolidation tools available in Excel.
If you have a group of tables (or lists) it is possible to combine (or consolidate) all this data into one table (or list). This can be done using the (Data > Consolidate) dialog box.
Function - Selects the type of consolidate function to be used:The sum of the values in a list or cell range.
COUNT: The number of digits in a list or array of digits.
COUNTA: Nums Count The number of cells that are not blank in a list or cell range.
AVERAGE: The arithmetic mean of a number list or array.
MAX: The highest value in a number list or array.
The smallest value in a number list or array.
PRODUCT: The sum of the numbers in a list or a cell range.
STDEV: Sample-based standard deviation.
STDEVP: The population-based standard deviation.
VAR: Variance based on a sample.
VARP:Variability based on the entire population.
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You email the WAV file for the first song to the fitness instructors. Soon, you get an automated email back saying the file is too large and it can’t be delivered. How else can you deliver the music files to the instructors?
Answer:
To deliver music files that are too large for email attachments, you could use file-sharing or file transfer services, store them on a physical storage device, or use streaming services to create a playlist and share it with the instructors.
Describe the first generation of computer based on hardware, software, computer characteristics, physical appearance and their applications?
Answer:
The first generation of computers was developed in the 1940s and 1950s, and was characterized by the use of vacuum tubes as the primary component of their electronic circuits. These computers were large, expensive, and required a lot of power to operate. Here are some key characteristics of first-generation computers:
Hardware: First-generation computers used vacuum tubes for logic circuitry, which were large, fragile, and generated a lot of heat. They also used magnetic drums or tape for data storage.
Software: Early computer programming languages were developed during this time, including machine language and assembly language. Programs were written on punched cards or paper tape and fed into the computer by operators.
Computer characteristics: First-generation computers were slow and had limited memory capacity. They were also very expensive and often required specialized operators to use them.
Physical appearance: First-generation computers were large and took up entire rooms. They consisted of racks of electronic equipment, with wires and tubes connecting everything together. The user interface was typically a console with switches and lights.
Applications: First-generation computers were primarily used for scientific and military applications, such as calculating missile trajectories or decrypting codes. They were also used in business for accounting and payroll purposes.
Some examples of first-generation computers include the ENIAC (Electronic Numerical Integrator and Computer), UNIVAC (Universal Automatic Computer), and IBM 701. Despite their limitations, these early computers represented a major milestone in the development of computing technology and laid the foundation for future generations of computers.
Write a function getResult() with no parameters. The function will read a dataFile (grade.txt).
The following lines define a sample of the data file:
AllyBaba, 100
Darwin, 80
Aarush, 90
The function will return a dictionary where the first item in the data file is the key and the second item is the value of the dictionary (myGrade). (python)
Make sure to check if the file exists.
The getResult function reads the data file grade.txt and returns a dictionary containing the values in the file. Three key-value pairs make up the dictionary; each key is a student's name.
Which Python function reads data from text files?A built-in function in Python enables us to open files in various modes. The open() function accepts two crucial parameters: the file name and the mode; the default mode is 'r' , which opens the file for reading only.
open('grade.txt', 'r') as f: lines = f is defined in getResult().
readlines()
for line in lines: myDict =
line is equal to line.
strip()\s key, value = line.
split(',')
myDict[key] = int(value) (value)
provide myDict
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Write a program that creates a 4 x 5 list called numbers. The elements in your list should all be random numbers between -100 and 100, inclusive. Then, print the list as a grid.
For instance, the 2 x 2 list [[1,2],[3,4]] as a grid could be printed as:
1 2
3 4
Sample Output
-94 71 -18 -91 -78
-40 -89 42 -4 -99
-28 -79 52 -48 34
-30 -71 -23 88 59
Note: the numbers generated in your program will not match the sample output, as they will be randomly generated.
Answer:
Solution
import random
numbers = [[random.randint(-100,100) for _ in range(5)] for _ in range(4)]
for row in numbers:
for num in row:
print(num, end=" ")
print()
11 Network administrators require you to create an addressing scheme for a new
division in the company. The requirements include a maximum number of
networks, with each network having at least 500 users. The given IP address is
80.0.0.0/16.
C
a) What prefix should be used?
b) What subnet mask should be used?
c) Fill in the following table with the new addressing scheme (fill in only
the first four rows):
Network Address
Search
Usable Address
Broadcast
a) To determine the prefix to use, we need to calculate the number of bits needed to support the maximum number of networks and the minimum number of hosts per network. The minimum number of hosts per network is 500, which requires at least 9 bits (since 2^9 = 512). To support the maximum number of networks, we need to find the highest power of 2 that is less than or equal to the number of networks. In this case, 2^11 = 2048, so we need 11 bits for the network portion of the address. Therefore, the prefix to use is /27, since we're using 16 bits for the network portion of the address and 11 bits for the host portion (16 + 11 = 27).
b) The subnet mask to use for a /27 prefix is 255.255.255.224. This is because a /27 prefix uses the first 27 bits of the 32-bit address for the network portion, which leaves 5 bits for the host portion. Converting these 5 bits to decimal gives us 2^5 = 32, so each subnet has 32 addresses. Subtracting 2 from this (one address for the network and one address for the broadcast) gives us 30 usable addresses per subnet.
c) Using a /27 prefix, we can create up to 2048 (2^11) networks, each with up to 30 usable addresses. The first four networks would be:
Network Address Subnet Mask Usable Address Range Broadcast Address
80.0.0.0 255.255.255.224 80.0.0.1 - 80.0.0.30 80.0.0.31
80.0.0.32 255.255.255.224 80.0.0.33 - 80.0.0.62 80.0.0.63
80.0.0.64 255.255.255.224 80.0.0.65 - 80.0.0.94 80.0.0.95
80.0.0.96 255.255.255.224 80.0.0.97 - 80.0.0.126 80.0.0.127
Note that the network address and broadcast address are not usable for hosts, which is why we subtract 2 from the total number of addresses per subnet to get the number of usable addresses.