Answer:
Network.
Explanation:
Availability is an essential part of network security, and user behavior analysis and application analysis provide the data needed to ensure that systems are available.
Availability in computer technology ensures that systems, applications, network connectivity and data are freely available to all authorized users when they need them to perform their daily routines or tasks. In order to make network systems available regularly, it is very essential and important to ensure that all software and hardware technical conflicts are always resolved as well as regular maintenance of the systems.
A network administrator can monitor the network traffics and unusual or unknown activities on the network through the user behavior analysis and data gathered from the application analysis to ensure the effective and efficient availability of systems.
Which of the following statements represents the number of columns in a regular two-dimensional array named values?
A) values[0].length
B) values.length
C) values.length)
D) values[0].length0
E) values.getColumnLength0)
Answer:
(a) values[0].length
Explanation:
In programming languages such as Java, an array is a collection of data of the same type. For example, a and b below are an example of an array.
a = {5, 6, 7, 9}
b = {{2,3,4}, {3,5,4}, {6,8,5}, {1,4,6}}
But while a is a one-dimensional array, b is a regular two-dimensional array. A two-dimensional array is typically an array of one-dimensional arrays.
Now, a few thing to note about a two-dimensional array:
(i) The number of rows in a 2-dimensional array is given by;
arrayname.length
For example, to get the number of rows in array b above, we simply write;
b.length which will give 4
(ii) The number of columns in a 2-dimensional array is given by;
arrayname[0].length
This is with an assumption that all rows have same number of columns.
To get the number of columns in array b above, we simply write;
b[0].length which will give 3
Therefore, for a regular two-dimensional array named values, the number of columns is represented by: values[0].length
Write a program that prompts the user for the name of two files each containing a single line that represents a decimal integercall them m and n, keep in mind that theseintegerscould be very largein absolute value, so they might not be stored neither as along nor intvariables. You should:a)Handle erroneous input graciously.b)Include a class named BigIntegerwhere you define an integer as a linked list, along with integer operations such as addition and subtraction [multiplication and division will grant you extra points] c)Test your program for each operation and store the result of each operation as a single decimal number in a separate file containing only one line\
Answer:
The output is seen bellow
Explanation:
public class BigInteger {
public class Node{
private char data;
private Node next;
public Node(char d){
this.setData(d);
this.setNext(null);
}
public char getData() {
return data;
}
public void setData(char data) {
this.data = data;
}
public Node getNext() {
return next;
}
public void setNext(Node next) {
this.next = next;
}
}
private Node root;
public BigInteger(String s){
this.root=null;
for(int i=s.length()-1;i>=0;i--){
Node node=new Node(s.charAt(i));
node.setNext(root);
root=node;
}
}
public String toString(){
String str="";
Node cur=this.root;
int i=0;
while(cur!=null){
if(i==0 && cur.getData()=='0'){
}
else{
i=1;
str+=cur.getData();
}
cur=cur.getNext();
}
return str;
}
public String reverse(String s){
String ret="";
for(int i=s.length()-1;i>=0;i--){
ret+=s.charAt(i);
}
return ret;
}
public BigInteger add(BigInteger s){
String f=this.reverse(this.toString());
String l=this.reverse(s.toString());
int max=(f.length()>l.length())?f.length():l.length();
String ret="";
int carry=0;
for(int i=0;i<max;i++){
int sum=carry;
if(i<f.length()){
sum+=(f.charAt(i)-'0');
}
if(i<l.length()){
sum+=(l.charAt(i)-'0');
}
ret+=(char)(sum%10+'0');
carry=(sum/10);
}
if(carry!=0){
ret+='1';
}
BigInteger bi=new BigInteger(this.reverse(ret));
return bi;
}
public boolean bigNum(String s1,String s2){
if(s1.length()>s2.length()){
return true;
}
else{
if(s1.length()<s2.length()){
return false;
}
else{
for(int i=0;i<s1.length();i++){
if(s1.charAt(i)!=s2.charAt(i)){
if(s1.charAt(i)>s2.charAt(i)){
return true;
}
else{
return false;
}
}
}
}
}
return false;
}
public BigInteger subtraction(BigInteger s){
String f=this.toString();
String l=s.toString();
boolean b=this.bigNum(f, l);
if(b==false){
String tmp=f;
f=l;
l=tmp;
}
f=this.reverse(f);
l=this.reverse(l);
int max=(f.length()>l.length())?f.length():l.length();
String ret="";
int borrow=0;
for(int i=0;i<max;i++){
int sum=borrow;
if(i<f.length()){
sum+=(f.charAt(i)-'0');
}
if(i<l.length()){
sum-=(l.charAt(i)-'0');
}
if(sum<0){borrow=-1;sum=10+sum;}
else{borrow=0;}
ret+=(char)(sum%10+'0');
}
if(b==false){
ret+="-";
}
BigInteger bi=new BigInteger(this.reverse(ret));
return bi;
}
public BigInteger multiplication(BigInteger s){
String f=this.toString();
String l=s.toString();
int len=l.length();
BigInteger bi=new BigInteger("");
for(int i=len-1;i>=0;i--){
//System.out.println(l.charAt(i));
BigInteger r=new BigInteger(f);
for(int j=(l.charAt(i)-'0');j>1;j--){
r=r.add(new BigInteger(f));
//System.out.print(r+" " );
}
//System.out.println();
bi=bi.add(r);
f=f+"0";
}
return bi;
}
public BigInteger division(BigInteger s){
BigInteger t=this;
BigInteger bi=new BigInteger("");
int i=0;
t=t.subtraction(s);
String str=t.toString();
while(str.charAt(0)!='-' && i<40){
//System.out.println(str+" "+(i+1));
bi=bi.add(new BigInteger("1"));
t=t.subtraction(s);
str=t.toString();
i++;
}
return bi;
}
}
-------------------
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Scanner;
public class Driver {
public static void main(String [] args){
Scanner sc=new Scanner(System.in);
String str1="";
String str2="";
System.out.print("Enter file name 1 :");
String file1=sc.next();
//String file1="datafile1.txt";
BufferedReader reader1;
try {
reader1 = new BufferedReader(new FileReader(file1));
while((str1=reader1.readLine())!=null){
break;
}
reader1.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
System.out.print("Enter file name 2 :");
String file2=sc.next();
//String file2="datafile2.txt";
BufferedReader reader2;
try {
reader2 = new BufferedReader(new FileReader(file2));
while((str2=reader2.readLine())!=null){
break;
}
reader2.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Which of these statements are true about managing through Active Directory? Check all that apply.
Answer:
ADAC uses powershell
Domain Local, Global, and Universal are examples of group scenes
Explanation:
Active directory software is suitable for directory which is installed exclusively on Windows network. These directories have data which is shared volumes, servers, and computer accounts. The main function of active directory is that it centralizes the management of users.
It should be noted thst statements are true about managing through Active Directory are;
ADAC uses powershellDomain Local, Global, and Universal are examples of group scenes.Active Directory can be regarded as directory service that is been put in place by Microsoft and it serves a crucial purpose for Windows domain networks.
It should be noted that in managing through Active, ADAC uses powershell.
Therefore, in active directory Domain Local, Global, and Universal are examples of group scenes .
Learn more about Active Directory at:
https://brainly.com/question/14364696
Sum.Write a program that prompts the user to read two integers and displays their sum.Your program should prompt the user to read the number again if the input is incorrect.
Answer:
while True:
number1 = input("Enter the number1: ")
number2 = input("Enter the number2: ")
if number1.isnumeric() and number2.isnumeric():
break
number1 = int(number1)
number2 = int(number2)
print("The sum is: " + str(number1 + number2))
Explanation:
*The code is in Python.
Create an infinite while loop. Inside the loop, Get the number1 and number2 from the user. Check if they are both numeric values. If they are, stop the loop (Otherwise, the program keeps asking for the numbers).
When the loop is done, convert the numbers to integer numbers
Calculate and print their sum
Write a function named word_count that accepts a string as its parameter and returns the number of words in the string. A word is a sequence of one or more non-space characters (any character other than ' ').
Answer:
def word_count(words):
return len(words.split(" "))
print(word_count("This is Python."))
Explanation:
*The code is in Python.
Create a function called word_count that takes one parameter, words
Split the words using split function, use " " for the delimiter, and return the length of this using len function.
Note that split function will give you a list of strings that are written with a space in the words. The len function will just give you the length of this list.
Call the word_count function with a string parameter and print the result.
Which of the following is not typically a responsibility for a social media specialist? Choose the answer.
Question 19 options:
Monitor SEO and user engagement and suggest content optimization.
Communicate with industry professionals and influencers via social media to create a strong network.
Install computer hardware.
Manage a company's social media profiles.
Answer:
C
Explanation:
A social media specialist does not usually install computer hardware. They will do things like look at engagement data, create new posts to send out to followers, and consult on how to get more people to come into your business, but they wouldn't be doing things like installing new ram.
ntify five key technologies/innovations and discuss their advantages and
disadvantages to developing countries like Ghana
Answer:
1. Blockchain Technology: Blockchain is a distributed ledger technology that lets data to be stored globally on its servers and it is based on a P2P topology which makes it difficult for someone to tamper with the network.
It can be used as a cryptocurrency wallet that supports BitCoin, Ethereum, etc.
An advantage of it is that it is distributed among several users and stable.
A disadvantage for a developing country like Ghana is that once a blockchain is sent, it cannot go back which brings up the question of security.
2.Artificial Intelligence: This technology is simply the simulation of human intelligence in machines. AI can be used for problem-solving and learning. An advantage of AI is that it reduces human error and is fast in solving problems. A disadvantage of AI is that its expensive to maintain and also it does not improve with experience.
3. Global Positioning System: GPS is a satellite-based positioning system that is used to pinpoint and track location. It has the advantage of being available worldwide and information is provided to users in real-time. One disadvantage of the GPS for a developing country like Ghana is that electromagnetic interference can affect the accuracy of the GPS.
4. 5G Network: This is the 5th generation of mobile internet connectivity that gives super fast download and upload speeds when compared to its predecessors 4G, 3G, 2G, and Edge networks.
One major disadvantage of 5G for a developing country like Ghana is that it is expensive and quite unknown and its security and privacy issues are yet to be resolved.
5. Lasers: This isn't a new technology as it has been in use for some time already but its importance cannot possibly be over-emphasized. LASER is an acronym that means Light Amplification by the Stimulated Emission of Radiation.
It is precise and accurate in cutting when compared to thermal and other conventional cutting methods. It is being used in surgeries that require the highest levels of accuracy with great success.
A disadvantage of Laser technology is that it is expensive to use and maintain.
In the Stop-and-Wait flow-control protocol, what best describes the sender’s (S) and receiver’s (R) respective window sizes?
Answer:
The answer is "For the stop and wait the value of S and R is equal to 1".
Explanation:
As we know that, the SR protocol is also known as the automatic repeat request (ARQ), this process allows the sender to sends a series of frames with window size, without waiting for the particular ACK of the recipient including with Go-Back-N ARQ. This process is mainly used in the data link layer, which uses the sliding window method for the reliable provisioning of data frames, that's why for the SR protocol the value of S =R and S> 1.CHALLENGE ACTIVITY 2.1.2: Assigning a sum. Write a statement that assigns total_coins with the sum of nickel_count and dime_count. Sample output for 100 nickels and 200 dimes is: 300
Answer:
Assuming python language:
total_coins = nickel_count + dime_count
Explanation:
The values of nickel_count and dime_count are added together and stored into total_coins.
Cheers.
Following are the code to the given question:
Program Explanation:
Defining a variable "nickel_count, dime_count" that initializes the value that is "100, 200" within it.In the next step, the "total_coins" variable is declared that initializes with 0.After initializing into the "total_coins" we add the above variable value and print its value.Program:
nickel_count = 100#defining a variable nickel_count that holds an integer value
dime_count = 200#defining a variable dime_count that holds an integer value
total_coins = 0#defining a variable total_coins that initilize the value with 0
total_coins = nickel_count + dime_count#using total_coins that adds nickel and dime value
print(total_coins)#print total_coins value
Output:
Please find the attached file.
Learn more:
brainly.com/question/17027551
vSphere Client is used to install and operate the guest OS. true or false
Answer:
True
Explanation:
A guest Operating System (OS) is a secondary OS to the main installed OS which is the host Operating System (OS). Guest OS can either be a part of a partition or a Virtual Machine (VM). This guest OS is used as a substitute to the host OS.
vSphere Web Client can be installed by using a CD-ROM, DVD or ISO image which has the installation image to make a Virtual Machine (VM) functional.
An app developer is shopping for a cloud service that will allow him to build code, store information in a database and serve his application from a single place. What type of cloud service is he looking for?
Answer:
Platform as a Service (PaaS).
Explanation:
In this scenario, an app developer is shopping for a cloud service that will allow him to build code, store information in a database and serve his application from a single place. The type of cloud service he is looking for is a platform as a service (PaaS).
In Computer science, Platform as a Service (PaaS) refers to a type of cloud computing model in which a service provider makes available a platform that allow users (software developers) to build code (develop), run, store information in a database and manage applications over the internet.
The main purpose of a Platform as a Service (PaaS) is to provide an enabling environment for software developers to code without having to build and maintain complex infrastructure needed for the development, storage and launching of their software applications.
Simply stated, PaaS makes provision for all of the software and hardware tools required for all the stages associated with application development over the internet (web browser).
Hence, the advantage of the Platform as a Service (PaaS) is that, it avails software developers with enough convenience as well as simplicity, service availability, ease of licensing and reduced costs for the development of software applications.
These are the different types of Platform as a Service;
1. Private PaaS.
2. Public PaaS.
3. Hybrid PaaS.
4. Mobile PaaS.
5. Communications PaaS.
6. Open PaaS.
The software developers can choose any of the aforementioned types of PaaS that is suitable, effective and efficient for their applications development. Some examples of PaaS providers are Google, Microsoft, IBM, Oracle etc.
Write a program that asks for the weight of a package and the distance it is to be shipped. This information should be passed to a calculateCharge function that computes and returns the shipping charge to be displayed . The main function should loop to handle multiple packages until a weight of 0 is entered.
Answer:
#include <iostream>
#include <iomanip>
using namespace std;
int main()
{
const int WEIGHT_MIN = 0,
WEIGHT_MAX = 20,
DISTANCE_MIN = 10,
DISTANCE_MAX = 3000;
float package_weight,
distance,
total_charges;
cout << "\nWhat is the weight (kg) of the package? ";
cin >> package_weight;
if (package_weight <= WEIGHT_MIN ||
package_weight > WEIGHT_MAX)
{
cout << "\nWe're sorry, package weight must be\n"
<< " more than 0kg and less than 20kg.\n"
<< "Rerun the program and try again.\n"
<< endl;
}
else
{
cout << "\nDistance? ";
cin >> distance;
if (distance < DISTANCE_MIN ||
distance > DISTANCE_MAX)
{
cout << "\nWe're sorry, the distance must be\n" << "within 10 and 3000 miles.\n"
<< "Rerun the program and try again.\n"
<< endl;
}
else
{
if (package_weight <= 2)
total_charges = (distance / 500) * 1.10;
else if (package_weight > 2 &&
package_weight <= 6)
total_charges = (distance / 500) * 2.20;
else if (package_weight > 6 &&
package_weight <= 10)
total_charges = (distance / 500) * 3.70;
else if (package_weight > 10 &&
package_weight <= 20)
total_charges = (distance / 500) * 4.80;
cout << setprecision(2) << fixed
<< "Total charges are $"
<< total_charges
<< "\nFor a distance of "
<< distance
<< " miles\nand a total weight of "
<< package_weight
<< "kg.\n"
<< endl;
}
}
Explanation:
What is a what if analysis in Excel example?
Answer:
What-If Analysis in Excel allows you to try out different values (scenarios) for formulas. The following example helps you master what-if analysis quickly and easily.
Assume you own a book store and have 100 books in storage. You sell a certain % for the highest price of $50 and a certain % for the lower price of $20.
(i really hope this is what u needed)
How I to turn this ''loop while'' in ''loop for''?
var i = 0;
while (i < 20) {
var lineY = 20 + (i * 20);
line(0, lineY, 400, lineY);
i++;
}
Answer:
for (var i = 0; i <20; i++)
{
var lineY = 20 + (i * 20);
line(0, lineY, 400, lineY);
}
Explanation:
To turn the loop while to for loop, you start by considering the iterating variable i and its iterating operations which are;
var i = 0; while (i < 20) and i++;
Where var i = 0; is the initializing statement
(i < 20) is the conditional statement
i++ is the increment
The next is to combine these operations to a for loop; using the following syntax: for(initializing; condition; increment){}
This gives: for(var i = 0; i<20; i++)
Hence, the full code snippet is:
for (var i = 0; i <20; i++)
{
var lineY = 20 + (i * 20);
line(0, lineY, 400, lineY);
}
You want to change your cell phone plan and call the company to discuss options. This is a typical example of CRM that focuses on_______loyalty programs for current customerscustomer service and supportprofitability for the companyacquisition of new customers.
Answer:
customer service and support
Explanation:
-Loyalty programs for current customers refer to incentives companies provide to existing customers to encourage them to keep buying their products or services.
-Customer service and support refers to the assistance companies provide to their existing customers to help them solve issues or provide information about their current products or services and other options.
-Profitability for the company refers to actions that will increase the financial gains of the company.
-Acquisition of new customers refers to actions implemented to attract clients.
According to this, the answer is that this is a typical example of CRM that focuses on customer service and support because you call the company to get assistance with options to change your current products.
The other options are not right because the situation is not about incentives for the customer or actions the company implements to increase its revenue. Also, you are not a new customer.
Consider a classful IPv4 address 200.200.200.200? What is its implied subnet mask? If we take the same address and append the CIDR notation "/27", now what is its subnet mask?
Answer:
a. 255.255.255.0 (class C)
b. 255.255.255.224
Explanation:
Here, we want to give the implied subnet mask of the given classful IPV4 address
We proceed as follows;
Given IPv4 address: 200.200.200.200
Classes
Class A : 0.0.0.0 to 127.255.255.255
Class B: 128.0.0.0 to 191.255.255.255
Class C: 192.0.0.0 to 223.255.255.255
Class D: 224.0.0.0 to 239.255.255.255
so 200.200.200.200 belongs to Class C and it's subnet mask is 255.255.255.0
In CIDR(Classless Inter Domain Routing)
subnet /27 bits means 27 1s and 5 0s. so subnet
i.e 11111111.11111111.11111111.11100000 which in dotted decimal format is 255.255.255.224 .
When you use Word's Email option to share a document, you should edit the _____ line to let the recipient know the email is from a legitimate source.
Answer:
Subject line
Explanation:
Editing the subject line is very important so as to enable the recipient know the source of received the message (document).
For example, if a remote team working on a project called Project X receives a shared document by one member of team, we would expect the subject line of the email to be– Project X document. By so doing the legitimacy of the email is easily verified.
What is the next step to solve a problem with video drivers after Windows reports it cannot find a driver that is better than the current driver
Answer:
Explanation:
In such a situation like this one, the first step would be to identify the brand and model of the video card itself. Once you find the brand and model you can simply go over to the brand manufacturer's website and go to the driver downloads section. There you simply search for the model series of the video card in your computer and download/install the latest version. The brand manufacturer's official website always has the most up to date drivers for all of their hardware.
"The ______ code of a rootkit gets the rootkit installation started and can be activated by clicking on a link to a malicious Web site in an email or opening an infected PDF file."
Answer:
Dropper.
Explanation:
A rootkit can be defined as a collection of hidden malicious computer software applications that gives a hacker, attacker or threat actor unauthorized access to parts of a computer and installed software. Some examples of rootkits are trojan, virus, worm etc.
The dropper code of a rootkit gets the rootkit installation started and can be activated by clicking on a link to a malicious website in an email or opening an infected PDF file such as phishing.
Hence, the dropper code of a rootkit launches and installs the loader program and eventually deletes itself, so it becomes hidden and not be noticed by the owner of the computer.
A rootkit can affect the performance of a computer negatively causing it to run slowly.
5.19 LAB: Countdown until matching digits Write a program that takes in an integer in the range 20-98 as input. The output is a countdown starting from the integer, and stopping when both output digits are identical. Ex: If the input is:
Answer:
Following are the code to this question:
x = int(input())#defining a variable x for user input value
if(x>=20 and x<=98):#defining an if block that checks value is in between 20 to 98
while(not(x%10==x//10)):#defining while loop that seprate numbers and checks it is not equal
print(x)#print value
x-=1# decrease value by subtracting 1
print(x)# print value
else:#defining else block
print("The input value must lie in 20-98")#print message
Output:
36
36
35
34
33
Explanation:
In the above python program code, a variable x is declared, which is used to input the value from the user end. In the next step, a conditional statement is used in if block, it checks the input value is lie in 20 to 98, and to check its uses and logic date, if it is false it will goto else section in this, it will print a message. If the given value is true, inside if block a while loop is declared, that separately divide the value and check it is identical or not, if it is not identical it will print the value and checks its less value similarly.The program that takes in an integer in the range 20-98 as input. The output is a countdown starting from the integer, and stopping when both output digits are identical is as follows:
x = int(input("your number should be between 20 to 98: "))
while 20 <= x <= 98:
print(x, end='\n')
if x % 11 == 0:
break
x -= 1
else:
print("your number must be between 20 to 98")
Code explanation:The code is written in python
The first line of code, we store the users input in the variable x.Then while 20 is less than or equal to or less than and equals to the users input, we have to print the x value .If the users input divides 11 without remainder(the digit are the same) then we break the loop. The loop continue as we subtract one from the users valueThe else statement wants us to tell the user to input numbers between 20 to 98learn more on python code here: https://brainly.com/question/26104476
A number, a, is a power of b if it is divisible by b and a/b is a power of b. Write a function called is_power that takes parameters a and b and returns True if a is a power of b.
Answer:
Here is the Python program.
def is_power(a, b): # function that takes two positive integers a and b as arguments
if a == b: #first base case: if both the numbers are equal
return True #returns True if a=b
elif b==1: #second base case: if the value of b is equal to 1
return False #returns False if b==1
else: #recursive step
return a%b==0 and is_power(a/b, b) #call divisible method and is_power method recursively to determine if the number is the power of another
Explanation:
return a%b==0 and is_power(a/b, b) statement basically means a number, a, is a power of b if it is divisible by b and a/b is a power of b
In the statement return a%b==0 and is_power(a/b, b) , a%b==0 checks whether a number a is completely divisible by number b. The % modulo operator is used to find the remainder of the division. If the remainder of the division is 0 it means that the number a is completely divisible by b otherwise it is not completely divisible.
The second part of the above statement calls is_power() method recursively. The and operator between the two means that both of the parts of the statement should be true in order to return true.
is_power() method takes two numbers a and b as arguments. First the method checks for two base cases. The first base case: a == b. Suppose the value of a = 1 and b =1 Then a is a power of b if both of them are equal. So this returns True if both a and b are equal.
Now the program checks its second base case b == 1. Lets say a is 10 and b is 1 Then the function returns False because there is no positive integer that is the power of 1 except 1 itself.
Now the recursive case return return a%b==0 and is_power(a/b, b) takes the modulo of a and b, and is_power method is called recursively in this statement. For example if a is 27 and b is 3 then this statement:
a%b==0 is True because 27 is completely divisible by 3 i.e. 27 % 3 = 0
is_power(a/b,b) is called. This method will be called recursively until the base condition is reached. You can see it has two arguments a/b and b. a/b = 27/3 = 9 So this becomes is_power(9,3)
The base cases are checked. Now this else statement is again executed return a%b==0 and is_power(a/b, b) as none of the above base cases is evaluated to true. when a%b==0 is True as 9 is completely divisible by 3 i.e. 9%3 =0 and is_power returns (9/3,3) which is (3,3). So this becomes is_power(3,3)
Now as value of a becomes 3 and value of b becomes 3. So the first base case a == b: condition now evaluates to true as 3=3. So it returns True.
Now in order to check the working of this function you can call this method as:
print(is_power(27, 3))
The output is:
True
Class or Variable "____________" serve as a model for a family of classes or variables in functions` definitions
Answer:
Parameter.
Explanation:
A parameter variable stores information which is passed from the location of the method call directly to the method that is called by the program.
Class or Variable parameter serve as a model for a family of classes or variables in functions' definitions.
For instance, they can serve as a model for a function; when used as an input, such as for passing a value to a function and when used as an output, such as for retrieving a value from the same function.
Hence, when you create classes or variables in a function, you can can set the values for their parameters.
For instance, to pass a class to a family of classes use the code;
\\parameter Name as Type (Keywords) = value;
\\procedure XorSwap (var a,b :integer) = "myvalue";
The most widely used presentation software program is Microsoft PowerPoint. You can produce a professional and memorable presentation using this program if you plan ahead and follow important design guidelines. What text and background should you use in a darkened room
Answer:
Light text on a dark background
Explanation:
Microsoft PowerPoint is an application software in which the company ables to introduce themselves by making slides and presented to an audience in an easy and innovative way. In this, we can add pictures, sound, video by adding the different text, colors, backgrounds, etc
For memorable and professional presentations, the light text on a dark background is a best combination as it is easy to read and give the best view of the message you want to convey.
The variable sentence stores a string. Write code to determine how many words in sentence start and end with the same letter, including one-letter words. Store the result in the variable same_letter_count.
Answer:
sentence = "hello wow a stores good"
same_letter_count = 0
sentence_list = sentence.split()
for s in sentence_list:
if s[0] == s[-1]:
same_letter_count += 1
print(same_letter_count)
Explanation:
*The code is in Python.
Initialize the sentence with a string
Initialize the same_letter_count as 0
Split the sentence using split method and set it to the sentence_list
Create a for loop that iterates through the sentence_list. If the first and last of the letters of a string are same, increment the same_letter_count by 1
When the loop is done, print the same_letter_count
Boolean expressions control _________________ Select one: a. recursion b. conditional execution c. alternative execution d. all of the above
Answer:
Option D, all of the above, is the right answer.
Explanation:
A Boolean expression is an expression in Computer Science. It is employed in programming languages that create a Boolean value when it is evaluated. There may be a true or false Boolean value. These expressions correspond to propositional formularies in logic. In Boolean expression, the expression 3 > 5 is evaluated as false while 5 > 3 is evaluated as true
Boolean expressions control all of the above method execution and as such option d is correct.
What is Boolean expressions?A Boolean expression is known to be a kind of logical statement that is said to be one of the two options that is it can be TRUE or FALSE .
Conclusively, Note that Boolean expressions are used to compare two or more data of any type only if both parts of the expression have equal basic data type. Boolean expressions control recursion, conditional execution and alternative execution.
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Assume a PHP document named hello.php has been saved in a folder named carla inside the htdocs folder on your computer. Which is the correct path to enter to view this page in a browser?
The available options are:
A. localhost/Carla/hello.php
B. localhost/htdocs/hello.php
C. localhost/htdocs/Carla/hello.php
D. carla/hello.php5
Answer:
C. localhost/htdocs/Carla/hello.php
Explanation:
A path in computer programming can be defined as the name of a file or directory, which specifies a unique location in a file system.
Therefore, to get the correct path to enter to view this page in a browser, one needs to follow the directory tree hierarchy, which is expressed in a string of characters in which path components, separated by a delimiting character, represent each directory.
Hence, correct path to enter to view this page in a browser is "localhost/htdocs/Carla/hello.php"
#Write a function called "replace_all" that accepts three #arguments: # # - target_string, a string in which to search. # - find_string, a string to search for. # - replace_string, a string to use to replace every instance # of the value of find. # #The arguments will be provided in this order. Your function #should mimic the behavior of "replace", but you cannot use #that function in your implementation. Instead, you should #find the result using a combination of split() and join(), #or some other method. # #Hint: This exercise can be complicated, but it can also #be done in a single short line of code! Think carefully about #the methods we've covered. #Write your function here!
Answer:
Here is the function replace_all:
def replace_all(target_string,find_string,replace_string):
result_string = replace_string.join(target_string.split(find_string))
return result_string
#if you want to see the working of this function then you can call this function using the following statements:
target_string = "In case I don't see ya, good afternoon, good evening, and good night!"
find_string = "good"
replace_string = "bad"
print(replace_all(target_string, find_string, replace_string)
Explanation:
The above program has a function called replace_all that accepts three arguments i.e target_string, a string in which to search ,find_string, a string to search for and replace_string, a string to use to replace every instance of the value of find_string. The function has the following statement:
replace_string.join(target_string.split(find_string))
split() method in the above statement is splits or breaks the target_string in to a list of strings based on find_string. Here find_string is passed to split() method as a parameter which works as a separator. For example above:
target_string = In case I don't see ya, good afternoon, good evening, and good night!
find_string = good
After using target_string.split(find_string) we get:
["In case I don't see ya, ", ' afternoon, ', ' evening, and ', ' night']
Next join() method is used to return a string concatenated with the elements of target_string.split(find_string). Here join takes the list ["In case I don't see ya, ", ' afternoon, ', ' evening, and ', ' night'] as parameter and joins elements of this list by 'bad'.
replace_string = bad
After using replace_string.join(target_string.split(find_string)) we get:
In case I don't see ya, bad afternoon, bad evening, and bad night!
The program and output is attached as a screenshot.
5- The Menu key or Application key is
A. is the placements and keys of a keyboard.
B. a telecommunications technology used to transfer copies of documents
c. a key found on Windows-oriented computer keyboards.
Answer:
c. a key found on Windows-oriented computer keyboards.
Explanation:
Hope it helps.
3.16 (Gas Mileage) Drivers are concerned with the mileage obtained by their automobiles. One driver has kept track of several tankfuls of gasoline by recording miles driven and gallons used for each tankful. Develop a program that will input the miles driven and gallons used for each tankful. The program should calculate and display the miles per gallon obtained for each tankful. After processing all input information, the program should calculate and print the combined miles per gallon obtained for all tankfuls. Here is a sample input/output dialog:
Answer:
I am writing a C program.
#include <stdio.h> // for using input output functions
#include <stdbool.h> // for using a bool value as data type
int main() { // start of the main() function body
int count=0; //count the number of entries
double gallons, miles, MilesperGallon, combined_avg, sum; //declare variables
while(true) {// takes input gallons and miles value from user and computes avg miles per gallon
printf( "Enter the gallons used (-1 to stop): \n" ); //prompts user to enter value of gallons or enter -1 to stop
scanf( "%lf", &gallons );//reads the value of gallons from user
if ( gallons == -1 ) {// if user enters -1
combined_avg = sum / count; //displays the combined average by dividing total of miles per drives to no of entries
printf( "Combined miles per gallon for all tankfuls: %lf\n", combined_avg ); //displays overall average value
break;} //ends the loop
printf( "Enter the miles driven: \n" ); //if user does not enter -1 then prompts the user to enter value of miles
scanf( "%lf", &miles ); //read the value of miles from user
MilesperGallon = miles / gallons; //compute the miles per gallon
printf( "The miles per gallon for tankful: %lf\n", MilesperGallon ); //display the computed value of miles per gallon
sum += MilesperGallon; //adds all the computed miles per gallons values
count += 1; } } //counts number of tankfuls (input entries)
Explanation:
The program takes as input the miles driven and gallons used for each tankful. These values are stored in miles and gallons variables. The program calculates and displays the miles per gallon MilesperGallon obtained for each tankful by dividing the miles driven with the gallons used. The while loop continues to execute until the user enters -1. After user enters -1, the program calculates and prints the combined miles per gallon obtained for all tankful. At the computation of MilesperGallon for each tankful, the value of MilesperGallon are added and stored in sum variable. The count variable works as a counter which is incremented to 1 after each entry. For example if user enters values for miles and gallons and the program displays MilesperGallon then at the end of this iteration the value of count is incremented to 1. This value of incremented for each tankful and then these values are added. The program's output is attached.
Do Exercise 6.4 from your textbook using recursion and the is_divisible function from Section 6.4. Your program may assume that both arguments to is_power are positive integers. Note that the only positive integer that is a power of "1" is "1" itself. After writing your is_power function, include the following test cases in your script to exercise the function and print the results: print("is_power(10, 2) returns: ", is_power(10, 2)) print("is_power(27, 3) returns: ", is_power(27, 3)) print("is_power(1, 1) returns: ", is_power(1, 1)) print("is_power(10, 1) returns: ", is_power(10, 1)) print("is_power(3, 3) returns: ", is_power(3, 3))
Answer:
Here is the python method:
def is_power(n1, n2): # function that takes two positive integers n1 and n2 as arguments
if(not n1>0 and not n2>0): #if n1 and n2 are not positive integers
print("The number is not a positive integer so:") # print this message if n1 and n2 are negative
return None # returns none when value of n1 and n2 is negative.
elif n1 == n2: #first base case: if both the numbers are equal
return True #returns True if n1=n2
elif n2==1: #second base case: if the value of n2 is equal to 1
return False #returns False if n2==1
else: #recursive step
return is_divisible(n1, n2) and is_power(n1/n2, n2) #call divisible method and is_power method recursively to determine if the number is the power of another
Explanation:
Here is the complete program.
def is_divisible(a, b):
if a % b == 0:
return True
else:
return False
def is_power(n1, n2):
if(not n1>0 and not n2>0):
print("The number is not a positive integer so:")
return None
elif n1 == n2:
return True
elif n2==1:
return False
else:
return is_divisible(n1, n2) and is_power(n1/n2, n2)
print("is_power(10, 2) returns: ", is_power(10, 2))
print("is_power(27, 3) returns: ", is_power(27, 3))
print("is_power(1, 1) returns: ", is_power(1, 1))
print("is_power(10, 1) returns: ", is_power(10, 1))
print("is_power(3, 3) returns: ", is_power(3, 3))
print("is_power(-10, -1) returns: ", is_power(-10, -1))
The first method is is_divisible method that takes two numbers a and b as arguments. It checks whether a number a is completely divisible by number b. The % modulo operator is used to find the remainder of the division. If the remainder of the division is 0 it means that the number a is completely divisible by b otherwise it is not completely divisible. The method returns True if the result of a%b is 0 otherwise returns False.
The second method is is_power() that takes two numbers n1 and n2 as arguments. The if(not n1>0 and not n2>0) if statement checks if these numbers i.e. n1 and n2 are positive or not. If these numbers are not positive then the program prints the message: The number is not a positive integer so. After displaying this message the program returns None instead of True of False because of negative values of n1 and n2.
If the values of n1 and n2 are positive integers then the program checks its first base case: n1 == n2. Suppose the value of n1 = 1 and n2 =1 Then n1 is a power of n2 if both of them are equal. So this returns True if both n1 and n2 are equal.
Now the program checks its second base case n2 == 1. Lets say n1 is 10 and n2 is 1 Then the function returns False because there is no positive integer that is the power of 1 except 1 itself.
Now the recursive case return is_divisible(n1, n2) and is_power(n1/n2, n2) calls is_divisible() method and is_power method is called recursively in this statement. For example if n1 is 27 and n2 is 3 then this statement:
is_divisible(n1, n2) returns True because 27 is completely divisible by 3 i.e. 27 % 3 = 0
is_power(n1/n2,n2) is called. This method will be called recursively until the base condition is reached. You can see it has two arguments n1/n2 and n2. n1/n2 = 27/3 = 9 So this becomes is_power(9,3)
The base cases are checked. Now this else statement is again executed return is_divisible(n1, n2) and is_power(n1/n2, n2) as none of the above base cases is evaluated to true. when is_divisible() returns True as 9 is completely divisible by 3 i.e. 9%3 =0 and is_power returns (9/3,3) which is (3,3). So this becomes is_power(3,3)
Now as value of n1 becomes 3 and value of n2 becomes 3. So the first base case elif n1 == n2: condition now evaluates to true as 3=3. So it returns True. Hence the result of this statement print("is_power(10, 2) returns: ", is_power(10, 2)) is:
is_power(27, 3) returns: True
Following are the program to the given question:
Program Explanation:
Defining a method "is_divisible" that takes two variable "a,b" inside the parameter.Usinge the return keyword that modulas parameter value and checks its value equal to 0, and return its value.In the next step, another method "is_power" is declared that takes two parameter "a,b".Inside the method, a conditional statement is declared, in which three if block is used. Inside the two if block it checks "a, b" value that is "odd number" and return bool value that is "True, False".In the last, if block is used checks "is_power" method value, and use multiple print method to call and prints its value.Program:
def is_divisible(a, b):#defining a method is_divisible that takes two parameters
return a % b == 0#using return keyword that modulas parameter value and checks its value equal to 0
def is_power(a, b):#defining a method is_power that takes two parameters
if a == 1:#defining if block that checks a value equal to 1 or check odd number condition
return True#return value True
if b == 1:#defining if block that checks b value equal to 1 or check odd number condition
return False#return value False
if not is_divisible(a, b):#defining if block that check method is_divisible value
return False##return value False
return is_power(a/b, b)#using return keyword calls and return is_power method
print("is_power(10, 2) returns: ", is_power(10, 2))#using print method that calls is_power which accepts two parameter
print("is_power(27, 3) returns: ", is_power(27, 3))#using print method that calls is_power which accepts two parameter
print("is_power(1, 1) returns: ", is_power(1, 1))#using print method that calls is_power which accepts two parameter
print("is_power(10, 1) returns: ", is_power(10, 1))#using print method that calls is_power which accepts two parameter
print("is_power(3, 3) returns: ", is_power(3, 3))#using print method that calls is_power which accepts two parameter
Output:
Please find the attached file.
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