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3 years ago

Question 10

Computers and Technology

1 answer:

Deffense [45]3 years ago

3 0

Answer:

B. Be in View Mode.

D. Select an environment element.

Explanation:

Cisco packet tracer can be defined as a software application or program designed to avail end users the ability to simulate a network. Therefore, it is typically used to present the graphical representation of a logical network and to properly configure network devices such as routers, switches, host devices etc., before they are physically deployed or installed at their primary location.

The two (2) steps which must be followed in order to view a working graph or chart of environmental changes in Cisco packet tracer includes;

I. Be in View Mode: the user must ensure he selects the view mode in order to see all environmental changes or working graph.

II. Select an environment element: you should select any of the environment element such as actuators, boards and sensors.

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When determining the cost of an item, the seller will often analyze the demand as well as the supply before setting the price of

juin [17]

Answer:

The price of a commodity is determined by supply and demand. therefore the answer is COMMODITY. that other person is wrong

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3 years ago

Develop a program so that the output will produce the following :

hammer [34]

Answer:

#include <iostream>

using namespace std;

int main()

{

float radius = 5.4;

float circumference = 2 * 3.14 * radius;

float area = 3.14 * radius * radius;

cout<<"the circumference of the circle is "<<circumference<<endl;

cout<<"the area of the circle is "<<area<<endl;

return 0;

}

Explanation:

Include the library iostream for using the input/output instructions.

create the main function and define the variable with value. Then,

use the formula to calculate the circumference and are of circle.

$circumference = 2*\pi *radius$

$area = \pi * radius^{2}$

here, choose $\pi = 3.14$

after that, display the result.

Note: All variable define in float type.

4 0

3 years ago

Write a program to declare a matrix A[][] of order (MXN) where ‘M’ is the number of rows and ‘N’ is the

Liula [17]

Answer:

import java.io.*;

import java.util.Arrays;

class Main {

public static void main(String args[])

throws IOException{

// Set up keyboard input

InputStreamReader in = new InputStreamReader(System.in);

BufferedReader br = new BufferedReader(in);

// Prompt for dimensions MxN of the matrix

System.out.print("M = ");

int m = Integer.parseInt(br.readLine());

System.out.print("N = ");

int n = Integer.parseInt(br.readLine());

// Check if input is within bounds, exit if not

if(m <= 2 || m >= 10 || n <= 2 || n >= 10){

System.out.println("Matrix size out of range.");

return;

}

// Declare the matrix as two-dimensional int array

int a[][] = new int[m][n];

// Prompt for values of the matrix elements

System.out.println("Enter elements of matrix:");

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

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

a[i][j] = Integer.parseInt(br.readLine());

}

// Output the original matrix

System.out.println("Original Matrix:");

printMatrix(a);

// Sort each row

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

Arrays.sort(a[i]);

}

// Print sorted matrix

System.out.println("Matrix after sorting rows:");

printMatrix(a);

}

// Print the matrix elements separated by tabs

public static void printMatrix(int[][] a) {

for(int i = 0; i < a.length; i++){

for(int j = 0; j < a[i].length; j++)

System.out.print(a[i][j] + "\t");

System.out.println();

}

Explanation:

I fixed the mistake in the original code and put comments in to describe each section. The mistake was that the entire matrix was sorted, while only the individual rows needed to be sorted. This even simplifies the program. I also factored out a printMatrix() method because it is used twice.

4 0

3 years ago

Oxnard Casualty wants to ensure that their e-mail server has 99.98 percent reliability. They will use several independent server

sattari [20]

Answer:

The smallest number of servers required is 3 servers

Explanation:

Given

$Reliability = 99.98\%$

$Individual Servers = 95\%$

Required

Minimum number of servers needed

Let p represent the probability that a server is reliable and the probability that it wont be reliable be represented with q

Such that

$p = 95\%\\$

It should be noted that probabilities always add up to 1;

So,

$p + q = 1$ '

Subtract p from both sides

$p - p + q = 1 - p$

$q = 1 - p$

Substitute $p = 95\%\\$

$q = 1 - 95\%$

Convert % to fraction

$q = 1 - \frac{95}{100}$

Convert fraction to decimal

$q = 1 - 0.95$

$q = 0.05$

------------------------------------------------------------------------------------------------

To get an expression for one server

The probabilities of 1 servers having 99.98% reliability is as follows;

$p = 99.98\%$

Recall that probabilities always add up to 1;

So,

$p + q = 1$

Subtract q from both sides

$p + q - q = 1 - q$

$p = 1 - q$

So,

$p = 1 - q = 99.98\%$

$1 - q = 99.98\%$

Let the number of servers be represented with n

The above expression becomes

$1 - q^n = 99.98\%$

Convert percent to fraction

$1 - q^n = \frac{9998}{10000}$

Convert fraction to decimal

$1 - q^n = 0.9998$

Add $q^n$ to both sides

$1 - q^n + q^n= 0.9998 + q^n$

$1 = 0.9998 + q^n$

Subtract 0.9998 from both sides

$1 - 0.9998 = 0.9998 - 0.9998 + q^n$

$1 - 0.9998 = q^n$

$0.0002 = q^n$

Recall that $q = 0.05$

So, the expression becomes

$0.0002 = 0.05^n$

Take Log of both sides

$Log(0.0002) = Log(0.05^n)$

From laws of logarithm $Loga^b = bLoga$

So,

$Log(0.0002) = Log(0.05^n)$ becomes

$Log(0.0002) = nLog(0.05)$

Divide both sides by $Log0.05$

$\frac{Log(0.0002)}{Log(0.05)} = \frac{nLog(0.05)}{Log(0.05)}$

$\frac{Log(0.0002)}{Log(0.05)} = n$

$n = \frac{Log(0.0002)}{Log(0.05)}$

$n = \frac{-3.69897000434}{-1.30102999566}$

$n = 2.84310893421$

$n = 3 (Approximated)$

Hence, the smallest number of servers required is 3 servers

6 0

3 years ago

Match the parts of the website address with its correct explanation. http://www.usa.gov/Agencies/federal.shtm/

meriva

sorry I was just testing something

6 0

3 years ago

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