Need help coding a sql probelm (not that hard im just confused)

Answer:

Yes

Explanation:

We known that TCP is the connection [tex]\text{oriented}[/tex] protocol. So the TCP expects for the target host to acknowledge or to check that the [tex]\text{communication}[/tex] session has been established or not.

Also the End stations that is running reliable protocols will be working together in order to verify transmission of data so as to ensure the accuracy and the integrity of the data. Hence it is reliable and so the data can be sent A will still be delivered reliably and it is in-sequence at B.

Answer:

False

Explanation:

The Carrier-sense multiple access with collision detection (CSMA/CD) technology was used in pioneer Ethernet to allow for local area networking.  Carrier-sensing aids transmission while the collision detection feature recognizes interfering transmissions from other stations and signals a jam. This means that transmission of the frame must temporarily stop until the interfering signal is abated.

The advent of Ethernet Switches resulted in a displacement of the CSMA/CD functionality.

Answer and Explanation:

A spreadsheet is an interactive computer application for the analysis and storage of data. The database is a collection of data and accessed from the computer system. This is the main difference between spreadsheets and databases. The spreadsheet is accessed by the user and the database is accessed by the user. The database can store more data than a spreadsheet. The spreadsheet is used for tasks and used in enterprises to store the data. Spreadsheet and database are two methods and the main difference is the computer application that helps to arrange, manage and calculate the data. The database is a collection of data and organized to access easily. Spreadsheet applications were the first spreadsheet on the mainframe. Database stores and manipulates the data easily. The database maintains the data and stores the records of teachers and courses. The spreadsheet is the computer application and analyzing the data in table form. The spreadsheet is a standard feature for productive suite and based on an accounting worksheet.

Answer:

True

Explanation:

To protect them from becoming disturbed by construction operations, hub stakes are placed on both sides of a roadway at a certain distance outside the work zone. The final stakes are connected to the hub stakes, which are used to write the essential information.

As a result, hub stakes are always accompanied with stakes.

Answer:

it would have to be flow control which would be C.

Explanation:

Flow Control is restricts the ability for individuals to reveal information present in some part of the database. Hence, option C is correct.

The management of data flow between computers, devices, or network nodes is known as flow control. This allows the data to be processed at an effective rate. Data overflow, which occurs when a device receives too much data before it can handle it, results in data loss or retransmission.

A design concern at the data link layer is flow control. It is a method that typically monitors the correct data flow from sender to recipient. It is very important because it allows the transmitter to convey data or information at a very quick rate, which allows the receiver to receive it and process it.

The amount of data transmitted to the receiver side without any acknowledgement is dealt with by flow control.

Thus, option C is correct.

For more information about Flow Control, click here:

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Answer:

4

Explanation:

Given

The attached code segment

Required

The output

The first and second lines initialize num2 to 32 and num1 to 12, respectively.

Next, the remainder is calculated on line 3

[tex]rem = 32\%12[/tex]

[tex]rem = 8[/tex]

Then the while loop is repeated as long as rem > 0.

At first, we have:

[tex]num2 = 32[/tex]

[tex]num1 = 12[/tex]

[tex]rem = 8[/tex]

The first iteration gives:

[tex]num2 = 12[/tex]

[tex]num1 = 8[/tex]

[tex]rem = 12\%8 = 4[/tex]

Is 4 > 0? Yes; The loop is executed again.

This gives:

[tex]num2 = 8[/tex]

[tex]num1 = 4[/tex]

[tex]rem = 8\%4=0[/tex]

Is 0 > 0? No; The loop is executed

The last statement prints the last value of num1;

In the last loop, we have:

[tex]num1 = 4[/tex]

Hence, the output is 4

Answer:

Below is correct, the answer is 4.

Explanation:

PLATO

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

Answer:

Explanation:

If an OS is using paging with offsets needing 12 bits, give the offset (in decimal or hexadecimal) to: the third word on a page the last word on a page.

Answer:

see your answer in image

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The amount of disk space in sectors that would be required to store 300,000 records is equal to 75,000 sectors.

Given the following data:

First of all, we would determine the number of logical records that can be held by each sector as follows:

Number of logical records per sector = 512/120

Number of logical records per sector = 4.3 ≈ 4.0.

Now, we can calculate the required disk space to store 300,000 records:

Disk space = 300,000/4

Disk space = 75,000 sectors.

For the tracks, we have:

Disk space in tracks = 75,000/96

Disk space in tracks = 781.25 ≈ 782.

Disk space in tracks = 782 tracks.

For the surfaces, we have:

Disk space in surfaces = 782/110

Disk space in surfaces = 7.10 ≈ 8.

Disk space in surfaces = 8 surfaces.

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Answer:

wheres the statement

Explanation:

Answer:

Explanation:

#include <iostream>

using std::cout;

using std::endl;  

using std::cin;  

int main()

{

int side, rowPosition, size;

cout << "Enter the square side: ";

cin >> side;

size = side;

while ( side > 0 ) {

rowPosition = size;

 while ( rowPosition > 0 ) {

if ( size == side || side == 1 || rowPosition == 1 ||  

rowPosition == size )

cout << '*';

else

cout << ' ';

--rowPosition;

}  

cout << '\n';

--side;

}

cout << endl;

return 0;

}

Answer:

B. Parallel

Explanation:

When using the ohmmeter function of a digital multimeter, the leads are placed parallel to the component being tested. The digital multimeter is placed parallel to the component because, current has to flow into the component so as to be able to measure its resistance. Without the flow of current in the component, the resistance could not be measured.

If the component were placed in series, there would be no way to close the circuit because, we need a closed circuit so as to measure the resistance and use the ohmmeter function of the digital multimeter.

Only a parallel connection would close the circuit.

So, B is the answer.

Answer:

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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.

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.

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Explanation:

In the backward chaining technique, used by the inference engine component of an expert system, the expert system starts with the goal, which is the then part,

Backward chaining is the process of working backward from the goal. It is used s an artificial intelligence application and proof application. The backward chaining can be implemented in logic programming.

Hence the then part is the correct answer.

Learn more about the backward chaining technique,

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Answer:

The function is as follows:

int returnsFixed(int arr [],int n){

   int retVal = -1;

   for(int i = 0; i<n;i++){

       if(i == arr[i]){

           retVal = i;

           break;

       }

   }

   return retVal;

}

Explanation:

This defines the functionl it receives the array and the length of the array

int returnsFixed(int arr [],int n){

This initializes the return value to -1

   int retVal = -1;

This iterates through the array

   for(int i = 0; i<n;i++){

This checks if i equals arr[i]

       if(i == arr[i]){

If yes, the return value (i.e. the fixed point) is set to i

           retVal = i;

And the code is exited

           break;

       } This ends the if condition

   } This ends the iteration

This returns the calculated fixed point

   return retVal;

}

Answer:

Bridges and switches

Explanation:

4a) A bridge is an intelligent repeater that is aware of the MAC addresses of the nodes on either side of the bridge and can forward packets accordingly.

A switch is an intelligent hub that examines the MAC address of arriving packets in order to determine which port to forward the packet to.

4b) Twisted-pair cable is a type of cabling that is used for telephone communications and most modern Ethernet networks

Answer:

Download the financial report as =FDS codes with cell referencing.

Explanation:

An excel is a spreadsheet that is developed by the Microsoft company for the Windows operating system. It can be also used in iOS, macOS and Android. It has many features including  graphing tools, calculation, pivot tables, etc.

In excel the fastest way to pull out a financial data from an application into the Excel as the refreshable formulas which can be edited or can be uploaded later on is by downloading the financial report as an +FDS code with the cell referencing.

In excel, cell refreshing is a way to refer to a cell in the formula.

Answer:

B. installApplication(‘A’, 1);

Explanation:

Given

The above code segment

Required

The correct call to installApplication

The function installApplication is declared as void, meaning that it is not expected to return anything.

Also, it receives a character and an integer argument.

So, the call to this function must include a character and an integer argument, in that order.

Option D is incorrect because both arguments are integer

Option C is incorrect because it passes no argument to the function.

Option A is incorrect because it receives an integer value from the function (and the function is not meant not to have a return value).

Option B is correct

Answer:

Following are the code to the given question:

#include<stdio.h>//include header file  

int main() //defining a main method

{  

   int a[100],k,x,s; //defining integer variable and an array  

   printf("Input the number of element want to insert array: ");  //print message

   scanf("%d",&x);  //input value

   printf("Enter array value: \n"); //print message  

   for(k = 0; k<x; k++)  //defining a loop that inputs values

   {  

       scanf("%d",&a[k]);  //use array to input value

   }  

   s = a[0]; //holding first array value in array

   for(k=0;k<x;k++)  //use for loop

   {  

       if(a[k]<s)  //use if block to check the smallest array value

       {  

         s=a[k];//holding smallest array value

       }  

   }  

   printf("smallest number= %d",s);//print smallest value

}  

Output:

Please find the attached file.

Explanation:

In this code an array and another integer variable "a[100], i,n, and s" is is declared, in which the array and n for input the value from the user-end.

In the next step, an "s" variable is declared that inputs the first array element value in s and use a loop to check the smallest array element and prints its value.

Answer. Network

Explanation:

Answer:

Explanation:

The following code is written in Java. It creates the Rainfall class with two constructors, one that passes the entire array of rainfall and another that initializes an array with 0.0 for all the months. Then the class contains a method to add rain to a specific month, as well as the three methods requested in the question. The method to add rain validates to make sure that no negative value was added. 8 Test cases were provided, and any methods can be called on any of the 8 objects.

class Brainly {

   public static void main(String[] args) {

       Rainfall rain1 = new Rainfall();

       Rainfall rain2 = new Rainfall();

       Rainfall rain3 = new Rainfall();

       Rainfall rain4 = new Rainfall();

       Rainfall rain5 = new Rainfall();

       Rainfall rain6 = new Rainfall();

       Rainfall rain7 = new Rainfall();

       Rainfall rain8 = new Rainfall();

   }

}

class Rainfall {

   double[] rainfall = {0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0, 0.0};

   public Rainfall(double[] rainfall) {

       this.rainfall = rainfall;

   }

   public Rainfall() {

   }

   public void addMonthRain(double rain, int month) {

       if (rain > 0) {

           rainfall[month-1] = rain;

       }

   }

   public double totalRainfall() {

       double total = 0;

       for (double rain: rainfall) {

           total += rain;

       }

       return total;

   }

   public double averageRainfall() {

       double average = totalRainfall() / 12;

       return average;

   }

   public double rainiestMonth() {

       double max = 0;

       for (double rain : rainfall) {

           if (rain > max) {

               max = rain;

           }

       }

       return max;

   }

}

Answer:

Static variables are initialized only once

Explanation:

Only one copy of static variables are created when 10 objects are created of a class

A static variable is common to all instances of a class because it is a class level variable

Answer:

I'm unsure of what language you are referring to, but the explanation below is in Python.

Explanation:

a = int(input("Input your first number: "))

b = int(input("Input your second number: "))  

c = int(input("Input your third number: "))

maximum = max(a, b, c)

print("The largest value: ", maximum)

Answer:

The program in C++ is as follows:

#include <iostream>

#include <vector>

using namespace std;

int main(){

   vector<int> intVect;

   int n;

   cin>>n;

int intInp;

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

 cin >> intInp;

 intVect.push_back(intInp); }

for (int i = n-1; i >=0; i--) {  cout << intVect[i] << " "; }

 return 0;

}

Explanation:

This declares the vector

   vector<int> intVect;

This declares n as integer; which represents the number of inputs

   int n;

This gets input for n

   cin>>n;

This declares intInp as integer; it is used to get input to the vector

int intInp;

This iterates from 0 to n-1

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

This gets each input

 cin >> intInp;

This passes the input to the vector

 intVect.push_back(intInp); }

This iterates from n - 1 to 0; i.e. in reverse and printe the vector elements in reverse

for (int i = n-1; i >=0; i--) {  cout << intVect[i] << " "; }

Answer:

sorry, I don't know what that is