A retail department store is approximately square, 35 meters (100 feet) on each side. Each wall has two entrances equally spaced apart. Located at each entrance is a point-of-sale cash register. Suggest a local area network solution that interconnects all eight cash registers. Draw a diagram showing the room, the location of all cash registers, the wiring, the switches, and the server. What type of wiring would you suggest?

Answers

Answer 1

Answer:

The use of twisted pair cable ( category 5e/6 ) to connect the computers on each register and also the use of switches to connect each register to the server

Explanation:

The local area network ( LAN ) solution  that will be used to interconnect all the POS  registers is ; The use of twisted pair cable ( category 5e/6 ) to connect the computers on each register and also the use of switches to connect each register to the server .  

This is because category 5e/6 twisted pair cable has a data rate transfer of up to 10 Mbps and it is best used for LAN connections

while The function of the three switches is to connect each cash register to the the central server been used .

attached below is a schematic representation

A Retail Department Store Is Approximately Square, 35 Meters (100 Feet) On Each Side. Each Wall Has Two

Related Questions

Write a method printShampooInstructions(), with int parameter numCycles, and void return type. If numCycles is less than 1, print "Too few.". If more than 4, print "Too many.". Else, print "N: Lather and rinse." numCycles times, where N is the cycle number, followed by "Done.". End with a newline and decare/use loop variable. Example output for numCycles = 2:
1: Lather and rinse.
2: Lather and rinse.
Done.
import java.util.Scanner; 3 public class ShampooBottle 4 5 Your solution goes here / 7 public static void main (String [] args) ShampooBottle trialSize - new ShampooBottle); trialsize.printShampooInstructions (2) 10 Run View your last submission Your solution goes here / public void printShampooInstructions (int numCycles) f if (numCycles 1) System.out.printin("Too few.") else if (numCycles4) System.out.printin("Too many.") else System.out.println("Done."); for (int i = 1; i (z numCycles ; ++i){ System.out . printin (? + ": Lather and rinse.");

Answers

Answer:

if (numCycles < 1){

        System.out.println("Too few.");

     }

     else if (numCycles > 4){

        System.out.println("Too many.");

        }    

  else{

     for(int i = 1; i <= numCycles; i++)

  {

     System.out.println(i + ": Lather and rinse.");

  }

     System.out.println("Done.");

  }

 

Explanation:

How would you type the word floor

Answers

Answer:

f l o o r

Explanation:

vacuum tubes produced a large amount of

Answers

Answer: suck

Explanation:

sucktion    

Large computer programs, such as operating systems, achieve zero defects prior to release. Group of answer choices True False PreviousNext

Answers

Answer:

The answer is "False"

Explanation:

It is put to use Six Sigma had 3.4 defects per million opportunities (DPMO) from the start, allowing for a 1.5-sigma process shift. However, the definition of zero faults is a little hazy. Perhaps the area beyond 3.4 DPMO is referred to by the term "zero faults.", that's why Before being released, large computer programs, such as operating systems, must have no faults the wrong choice.

Write three statements to print the first three elements of vector runTimes. Follow each with a newline. Ex: If runTimes = {800, 775, 790, 805, 808}, print: 800 775 790

Answers

Answer:

Following are the code to the given question:

#include <iostream>//header file

using namespace std;

int main()//main method

{

int runTimes[] = {800, 775, 790, 805, 808};//defining array of integer

for(int x=0;x<3;x++)//defining for loop to print three element of array value

{

printf("%d\n",runTimes[x]);//print array value  

}

return 0;

}

Output:

Please find the attached file.

Explanation:

In this code, an array integer "runTimes" is declared that holds the given array values, and in the next step, a for loop is declared.

Inside the loop, an integer variable x is declared that starts from 0 and ends when its value less than 3 in which we print the first three array element values.

Base conversion. Perform the following conversion (you must have to show the steps to get any credit.
3DF16 = ?

Answers

Base to be converted to was not included but we would assume conversion to base 10(decimal)

Answer and Explanation:

The 3DF in base 16 is a hex number so we need to convert to its equivalent binary/base 2 form:

We therefore each digit of given hex number 3DF in base 16 to equivalent binary, 4 digits each.

3 = 0011

D = 1101

F = 1111

We then arrange the binary numbers in order

3DF base 16 = 1111011111 in base 2

We then convert to base 10 =

= 1x2^9+1x2^8+1x2^7+1x2^6+0x2^5+1x2^4+1x2^3+1x2^2+1×2^1+1×2^0

= 991 in base 10

CPT (Current Procedural Terminology) codes consist of 3-4 numbers representing a unique service. True False

Answers

this is in fact false to my knowledge

The manager of the Super Supermarket would like to be able to compute the unit price for products sold there. To do this, the program should input the name and price of an item per pound and its weight in pounds and ounces. Then it should determine and display the unit price (the price per ounce) of that item and the total cost of the amount purchased. You will need the following variables: ItemName Pounds Ounces PoundPrice TotalPrice UnitPriceYou will need the following formulas: UnitPrice = PoundPrice/16 TotalPrice = PoundPrice * (Pounds + Ounces/16)

Answers

Answer:

The program in Python is as follows:

name = input("Name of item: ")

PoundPrice = int(input("Pound Price: "))

Pounds = int(input("Weight (pounds): "))

Ounces = int(input("Weight (ounce): "))

UnitPrice = PoundPrice/16

TotalPrice = PoundPrice * (Pounds + Ounces/16)

print("Unit Price:",UnitPrice)

print("Total Price:",TotalPrice)

Explanation:

This gets the name of the item

name = input("Name of item: ")

This gets the pound price

PoundPrice = int(input("Pound Price: "))

This gets the weight in pounds

Pounds = int(input("Weight (pounds): "))

This gets the weight in ounces

Ounces = int(input("Weight (ounce): "))

This calculates the unit price

UnitPrice = PoundPrice/16

This calculates the total price

TotalPrice = PoundPrice * (Pounds + Ounces/16)

This prints the unit price

print("Unit Price:",UnitPrice)

This prints the total price

print("Total Price:",TotalPrice)

now now now now mowewweedeeee

Answers

Answer:

15

Inside the type declaration, you specify the maximum length the entry can be. For branch, it would be 15.

I can't seem to type the full "vc(15)" phrase because brainly won't let me.

application of printer​

Answers

Answer:

In addition, a few modern printers can directly interface to electronic media such as memory cards, or to image capture devices such as digital cameras, scanners; some printers are combined with a scanners and/or fax machines in a single unit, and can function as photocopiers.

9.19 LAB: Sort an array Write a program that gets a list of integers from input, and outputs the integers in ascending order (lowest to highest). The first integer indicates how many numbers are in the list. Assume that the list will always contain less than 20 integers. Ex: If the input is:

Answers

Answer:

i hope you understand

mark me brainlist

Explanation:

Explanation:

#include <iostream>

#include <vector>

using namespace std;

void vector_sort(vector<int> &vec) {

int i, j, temp;

for (i = 0; i < vec.size(); ++i) {

for (j = 0; j < vec.size() - 1; ++j) {

if (vec[j] > vec[j + 1]) {

temp = vec[j];

vec[j] = vec[j + 1];

vec[j + 1] = temp;

}

}

}

}

int main() {

int size, n;

vector<int> v;

cin >> size;

for (int i = 0; i < size; ++i) {

cin >> n;

v.push_back(n);

}

vector_sort(v);

for (int i = 0; i < size; ++i) {

cout << v[i] << " ";

}

cout << endl;

return 0;

}

g 1-4 Which piece of network hardware breaks a network up into separate collision domains within a single broadcast domain

Answers

Answer:

A switch

Explanation:

A local area network (LAN) refers to a group of personal computers (PCs) or terminals that are located within the same general area and connected by a common network cable (communication circuit), so that they can exchange information from one node of the network to another. A local area network (LAN) is typically used in small or limited areas such as a set of rooms, a single building, school, hospital, or a set of well-connected buildings. Some of the network devices or equipments used in a local area network (LAN) includes an access point, personal computers, a hub, a router, printer, a switch, etc.

In computer networking, a switch is a network hardware (device) that breaks up a network into separate collision domains within a single broadcast domain. Thus, it's commonly configured with virtual local area network (VLAN) to break up and interconnect multiple networks.

The DevOps team is requesting read/write access to a storage bucket in the public cloud that is located in a backup region. What kind of services are they requesting

Answers

Answer:

Authorization

Explanation:

The kind of service that they are requesting is known as Authorization. This is basically when a user, such as the DevOps team in this scenario, is requesting permission to access a certain service or function that is locked. In this scenario, the services being requested are the read/write access which would allow the DevOps team to manipulate the data in the storage bucket. This is usually locked because the data is sensitive and innapropriate changes can cause many errors in the system. Therefore, authorization is needed to make sure that only specific users have access.

write an algorithm for finding the perimeter of a rectangle

Answers

A formula could be 2a+2b

Sophia is putting together a training manual for her new batch of employees.Which of the following features can she use to add a document title at the top of each page?
A) Heading style
B) Page margin
C) References
D) Header and Footer

Answers

Answer:

A heading style to add a document title

The feature can she use to add a document title at the top of each page is - Heading style. Therefore option A is the correct resposne.

What are Header and Footer?

A footer is a text that is positioned at the bottom of a page, whereas a header is text that is positioned at the top of a page. Usually, details about the document, such as the title, chapter heading, page numbers, and creation date, are inserted in these spaces.

A piece of the document that appears in the top margin is called the header, while a section that appears in the bottom margin is called the footer. Longer papers may be kept structured and made simpler to read by including more information in the headers and footers, such as page numbers, dates, author names, and footnotes. Each page of the paper will have the header or footer text you input.

To read more about Header and Footer, refer to - https://brainly.com/question/20998839

#SPJ2

The conversion rate would be the highest for keyword searches classified as Group of answer choices buyers grazers researchers browsers

Answers

Answer:

buyers

Explanation:

Search engine optimization (SEO) can be defined as a strategic process which typically involves improving and maximizing the quantity and quality of the number of visitors (website traffics) to a particular website by making it appear topmost among the list of results from a search engine such as Goo-gle, Bing, Yah-oo etc.

This ultimately implies that, search engine optimization (SEO) helps individuals and business firms to maximize the amount of traffic generated by their website i.e strategically placing their website at the top of the results returned by a search engine through the use of algorithms, keywords and phrases, hierarchy, website updates etc.

Hence, search engine optimization (SEO) is focused on improving the ranking in user searches by simply increasing the probability (chances) of a specific website emerging at the top of a web search.

Typically, this is achieved through the proper use of descriptive page titles and heading tags with appropriate keywords.

Generally, the conversion rate is mainly designed to be the highest for keyword searches classified as buyers because they're the main source of revenue for a business and by extension profits.

To connect several computers together, one generally needs to be running a(n) ____ operating system
a. Network
b. Stand-alone
c. Embedded
d. Internet

Answers

Answer. Network

Explanation:

Write a recursive method to form the sum of two positive integers a and b. Test your program by calling it from a main program that reads two integers from the keyboard and users your method to complete and print their sum, along with two numbers.

Answers

Answer:

see the code snippet below writing in Kotlin Language

Explanation:

fun main(args: Array<String>) {

   sumOfNumbers()

}

fun sumOfNumbers(): Int{

   var firstNum:Int

   var secondNum:Int

   println("Enter the value of first +ve Number")

   firstNum= Integer.valueOf(readLine())

   println("Enter the value of second +ve Number")

   secondNum= Integer.valueOf(readLine())

   var sum:Int= firstNum+secondNum

  println("The sum of $firstNum and $secondNum is $sum")

   return sum

}

Write a program using integers user_num and x as input, and output user_num divided by x three times.Ex: If the input is:20002Then the output is:1000 500 250Note: In Python 3, integer division discards fractions. Ex: 6 // 4 is 1 (the 0.5 is discarded).LAB ACTIVITY2.29.1: LAB: Divide by x0 / 10main.pyLoad default template...12''' Type your code here. '''

Answers

Answer:

Following are the code to the given question:

user_num = int(input())#defining a variable user_num that takes input from user-end

x = int(input())#defining a variable x that takes input from user-end

for j in range(3):#defining for loop that divides the value three times

   user_num = user_num // x#dividing the value and store integer part

   print(user_num)#print value

Output:

2000

2

1000

500

250

Explanation:

In the above-given program code two-variable "user_num and x" is declared that inputs the value from the user-end and define a for loop that uses the "j" variable with the range method.

In the loop, it divides the "user_num" value with the "x" value and holds the integer part in the "user_num" variable, and prints its value.  

A coin is tossed repeatedly, and a payoff of 2n dollars is made, where n is the number of the toss on which the first Head appears. So TTH pays $8, TH pays $4 and H pays $2. Write a program to simulate playing the game 10 times. Display the result of the tosses and the payoff. At the end, display the average payoff for the games played. A typical run would be:

Answers

Answer:

Explanation:

The following code is written in Java. It creates a loop within a loop that plays the game 10 times. As soon as the inner loop tosses a Heads (represented by 1) the inner loop breaks and the cost of that game is printed to the screen. A test case has been made and the output is shown in the attached image below.

import java.util.Random;

import java.util.Scanner;

class Brainly {

   public static void main(String[] args) {

       int count = 0;

       int loopCount = 0;

       while (loopCount < 10) {

           while (true) {

               Random rand = new Random();

               int coinFlip = rand.nextInt(2);

               count++;

               if (coinFlip == 1) {

                   System.out.println("Cost: $" + 2*count);

                   count = 0;

                   break;

               }

               loopCount++;

           }

       }

   }

}

Your dashboard should show the sum and average as two separate columns. If you use measure names as the column field, what should you use for the marks

Answers

Answer:

Hence the answer is a sum.

Explanation:

Here the statement shows that the dashboard should show the sum and average as two separate columns if we name measure names because the column field then for marks we'll use the sum. Since the sum displays the sum of the values of all the fields, which refers to the marks of the person.

Therefore the answer is a sum.

If we use measure names as the column field, we should use "the sum".

A set of cells that are support equipment on about a similar vertical line, is considered as a column.

Usually, the name of the user or a client represents a field column, while the total and sometimes even averaging columns in our dashboards or screen are different.When using a summation of total summary, perhaps the column field (title), as well as its amount and averaging marking, are indicated.

The preceding reply is thus right.

Learn more:

https://brainly.com/question/17271202

1. Write the CSS for an id with the following characteristics: fixed position, light grey background color, bold font weight, and 10 pixels of padding

Answers

Answer:

#element

{

position: fixed;

background-color: RGBA(211, 211, 211, 1);

font-weight: bold;

padding: 10px;  

}

___________ colors come forward and command attention. ______________ colors recede away from our eyes and tend to fall into the background of a design.

Answers

Answer:

"Warm; Cool/receding" is the correct answer.

Explanation:

The color temperature would be referred to as summer and winter upon that color wheel, the hottest becoming red/orange as well as the most cooler always being bluish or greenish.A terminology to define the warmth of the color is termed as Warm colors. Warm hues are prominent as well as lively just like reds, oranges, etc.

Thus the above is the right answer.

Assume that an O(log2N) algorithm runs for 10 milliseconds when the input size (N) is 32. What input size makes the algorithm run for 14 milliseconds

Answers

Answer:

An input size of N = 128 makes the algorithm run for 14 milliseconds

Explanation:

O(log2N)

This means that the running time for an algorithm of length N is given by:

[tex]F(N) = c\log_{2}{N}[/tex]

In which C is a constant.

Runs for 10 milliseconds when the input size (N) is 32.

This means that [tex]F(32) = 10[/tex]

So

[tex]F(N) = c\log_{2}{N}[/tex]

[tex]10 = c\log_{2}{32}[/tex]

Since [tex]2^5 = 32, \log_{2}{32} = 5[/tex]

Then

[tex]5c = 10[/tex]

[tex]c = \frac{10}{5}[/tex]

[tex]c = 2[/tex]

Thus:

[tex]F(N) = 2\log_{2}{N}[/tex]

What input size makes the algorithm run for 14 milliseconds

N for which [tex]F(N) = 14[/tex]. So

[tex]F(N) = 2\log_{2}{N}[/tex]

[tex]14 = 2\log_{2}{N}[/tex]

[tex]\log_{2}{N} = 7[/tex]

[tex]2^{\log_{2}{N}} = 2^7[/tex]

[tex]N = 128[/tex]

An input size of N = 128 makes the algorithm run for 14 milliseconds

How can I pass the variable argument list passed to one function to another function.

Answers

Answer:

Explanation:

#include <stdarg.h>  

main()  

{  

display("Hello", 4, 12, 13, 14, 44);  

}  

display(char *s,...)  

{  

va_list ptr;  

va_start(ptr, s);  

show(s,ptr);  

}  

show(char *t, va_list ptr1)  

{  

int a, n, i;  

a=va_arg(ptr1, int);  

for(i=0; i<a; i++)  

 {  

n=va_arg(ptr1, int);  

printf("\n%d", n);  

}  

}

List safety conditions when downloading shareware, free free where, or public domain software

Answers

Answer:

Explanation:

Freeware and shareware programs are softwares which are either free of charge or consist of a free version for a certain trial period. These programs pose a threat of habouring malware or viruses which could damage one's computer and important files and programs. Therefore, it is imperative that carefulness is maintained when trying to get these softwares.

Some of the necessary safety conditions that should be taken include;

1) Appropriate research about the software including taking more about the vendors and reviews.

2.) Once, a healthy review has been identified ; the download can begin with the Downloader ensuring that the download is from the recommended site.

3) Prior to installation the software should be scanned with an active anti-virus program to determine if there is possibility that a virus has creeped in.

4.) Some softwares may require that computer anti-virus be turned off during installation, this is not always a good idea as this act leaves the system vulnerable a d badly exposed.

what is an RTF file?

Answers

Answer:

The Rich Text Format is a proprietary document file format with published specification developed by Microsoft Corporation from 1987 until 2008 for cross-platform document interchange with Microsoft products.

Complete the implementation of the following methods:__init__hasNext()next()getFirstToken()getNextToken()nextChar()skipWhiteSpace()getInteger()

Answers

From method names, I am compelled to believe you are creating some sort of a Lexer object. Generally you implement Lexer with stratified design. First consumption of characters, then tokens (made out of characters), then optionally constructs made out of tokens.

Hope this helps.

Complete the calcAverage() method that has an integer array parameter and returns the average value of the elements in the array as a double.(Java program)

Ex: If the input array is:

1 2 3 4 5
then the returned average will be:

3.0

Answers

Answer:

Explanation:

The following Java program has the method calcAverage(). It creates a sum variable which holds the sum of all the values in the array and the count variable which holds the number of elements in the array. Then it uses a For Each loop to loop through the array and go adding each element to the sum variable. Finally it calculates the average by dividing the sum by the variable count and returns the average to the user. A test case has been created in the main method using the example in the question. The output can be seen in the image attached below.

class Brainly {

   public static void main(String[] args) {

       int[] myArr = {1, 2, 3, 4, 5};

       System.out.println(calcAverage(myArr));

   }

   

   public static double calcAverage(int[] myArr) {

       double sum = 0;

       double count = myArr.length;

       for (int x: myArr) {

           sum += x;

       }

       double average = sum / count;

       return average;

   }

}

Which tools do you use for LinkedIn automation?

Answers

Explanation:

Automation tools allow applications, businesses, teams or organizations to automate their processes which could be deployment, execution, testing, validation and so on. Automation tools help increase the speed at which processes are being handled with the main aim of reducing human intervention.

Linkedln automation tools are designed to help automate certain processes in Linkedln such as sending broadcast messages, connection requests, page following and other processes with less or no human or manual efforts. Some of these automation tools include;

i. Sales navigator for finding right prospects thereby helping to build and establish trusting relationships with these prospects.

ii. Crystal for providing insights and information about a specified Linkedln profile.

iii. Dripify used by managers for quick onboarding of new team members, assignment of roles and rights and even management of subscription plans.  

Answer:

Well, for me I personally use LinkedCamap to drive more LinkedIn connections, hundreds of leads, sales, and conversions automatically.  

Some other LinkedIn automation tools are;  

   Expandi      Meet Alfred      Phantombuster      WeConnect      LinkedIn Helper  

Hope this helps!

Other Questions
The petty cash fund of the Brooks Agency is established at $150. At the end of the current period, the fund contained $28 and had the following receipts: entertainment, $70; postage, $30; and printing, $22. Prepare journal entries to record (a) establishment of the fund and (b) reimbursement of the fund at the end of the current period.Identify the two events from the following that cause a Petty Cash account to be credited in a journal entry.______________ a. Fund amount is being reduced._____________ b. Fund amount is being increased._______________ c. Fund is being eliminated._______________ d. Fund is being established. 4a=5b+5 2a=3b+2. solve using the method of elimination please help !* How did George Washington die Question below plz answer it fast! Quickly pls!!! A wave with a wavelength of 0.5 m moves with a speed of 1.5 m/s. What is the frequency of the wave?A. 2.0 HzB. 1.0 HzC. 0.33 HzD. 3.0 Hz What is the rate of change of the line on the graph You are implementing a new application control solution. Prior to enforcing your application whitelist, you want to monitor user traffic for a period of time to discover user behaviors and log violations for later review. How should you configure the application control software to handle applications not contained in the whitelist? what is the task of vessel cells in xylem The fraction8produces a repeating decimal.0.375O A. TrueO B. False HELP-Which element of art does Louise Bourgeois use in Maman?A.Balance B.Color C.Form D.Value Choose the correct answers for (a) the total installment price, (b) the carrying charges, and (c) the number of months needed to save money at the monthly rate to buy the item for its cash price.A bunk bed with a cash price of $1,998, at $143 per month for 15 months What term is used to describe decay that happens in the presence of oxygen? On May 10, 2020, Marin Co. enters into a contract to deliver a product to Greig Inc. on June 15, 2020. Greig agrees to pay the full contract price of $2,060 on July 15, 2020. The cost of the goods is $1,350. Marin delivers the product to Greig on June 15, 2020, and receives payment on July 15, 2020. Prepare the journal entries for Marin related to this contract. Either party may terminate the contract without compensation until one of the parties performs Based on a predicted level of production and sales of 12,000 units, a company anticipates reporting operating income of $26,000 after deducting variable costs of $72,000 and fixed costs of $10,000. Based on this information, the budgeted amounts of fixed and variable costs for 15,000 units would be Wires manufactured for a certain computer system are specified to have a resistance ofbetween 0.11 and 0.16 ohm. The actual measured resistances of the wires produced byCompany A have a normal probability distribution, with a mean of 0.14 ohms, and astandard deviation of 0.003 ohms. What is the probability that a randomly selected wirefrom Company As production lot will meet the specifications? Summarize the article in one sentence (your own words). What is the main idea? Newspaper Coverage of the Invasion at NormandyWar News Summarized June 6th 1944 | New York Times The invasion of western Europe began this morning. General Eisenhower, in his first communique from Supreme Headquarters, Allied Expeditionary Force, issued at 3:30 am, said that Allied naval forces supported by strong air forces began landing Allied armies this morning on the northern coast of France. The assault was made by British, American, and Canadian troops who, under command of Gen. Sir Bernard L. Montgomery, landed in Normandy. London gave no further details but earlier Berlin had broadcast that parachute troops had landed on the Normandy Peninsula near Cherbourg and that invasion forces were pouring from landing craft under cover of warships near Havre. Dunkerque and Calais were being heavily bombed, the Germans said. Later announcements from Berlin said that there was fighting between Caen and Trouville and that shock troops had swung into action to halt the invasion. General Eisenhower, in an order of the day to each member of the great crusade told his men the enemy would fight savagely: We will accept nothing less than full victory! Good luck. In a broadcast to the Peoples of Western Europe, he said the day would come when he would need their full help.A special word to France added that Frenchmen would rule the country. Almost simultaneously it was announced that General de Gaulle had arrived in London. The liberation of Rome in no way slowed the Allied pursuit of the tired and disorganized German armies in Italy yesterday. Armored and motorized units sped across the Tiber River to attack upon the retreating enemies' heels. Five hundred heavy bombers joined with lighter aircraft to smash rail and road routes leading to northern Italy and to add to the foes demoralization. The Eighth Army, despite heavy opposition, especially northeast of Valmontone, captured a number of strategic towns. General Clark said that parts of the two German armies had been smashed. He doubted the ability of the Germans Fourteenth to put up effective opposition, and felt the Allied victory would come soon. President Roosevelt warned the people of the United States in a radio talk last night not to overemphasize the military significance of the liberation of Rome. Germany has not yet been driven to surrender, he said. Victory still lies some distance ahead it will be tough and costly [tex]what \: is \: photosynthesis \: {?} [/tex] Which graph shows the solution to the system of linear inequalities?y>2/3x+3y -1/3x+2 Which sentence most clearly describes Mrs whites first reaction to the story of the monkeys paws What is the present value of the annual interest payments on a 10-year, $1,000 par value bond with a coupon rate of 10 percent paid annually, if the yield on similar bonds is 9 percent?