Explanation:
I am a collection of this process from Trash on the computer system and the program that included a new twist on the computer and the skin that appears after loading and the Windows operating system it was much that appear on identifying long horizontal bar at the bottom of the screen and water pollution and its control car parts of the computer with enough letters and adware if for the collection of the fat calculation in the complete committee that in the water method is a product of a screensaver been disciplined displayed at the subject of the right click an icon To Number Sau new file getting opened on you can getting opened on a forgiving of an operational effectiveness of the program is a false false false
If the object instance is created in a user program, then the object instance can access both the public and private members of the class using DOT notation (such as Rectangle r; r.area=10). True or False
Answer:
False
Explanation:
The private member of a class is not accessible by using the Dot notation ,however the private member are those which are not accessible inside the class they are accessible outside the class .The public member are accessible inside the class so they are accessible by using the dot operator .
Following are the example is given below in C++ Language
#include<iostream> // header file
using namespace std;
class Rectangle
{
private:
double r; // private member
public:
double area()
{ return 3.14*r*r;
}
};
int main()
{
Rectangle r1;// creating the object
r1.r = 3.5;
double t= r1.area(); // calling
cout<<" Area is:"<<t;
return 0;
}
Output:
compile time error is generated
The correct program to access the private member of class is given below
#include<iostream> // header file
using namespace std;
class Rectangle
{
private:
double r; // private member
public:
double area()
{
r1=r;
double t2=3.14*r2*r2;
return(t2); // return the value
}
};
int main()
{
Rectangle r1;// creating the object
r1.r = 1.5;
double t= r1.area(); // calling
cout<<" Area is:"<<t;
return 0;
}
Therefore the given statement is False
opearating system protection refers to a mechanism for controling access by programs, processes, or users to both system and user resources. briefly explain what must be done by the operating system protection mechanism in order to provide the required system protection
Answer:
The operating system must by the use of policies define access to and the use of all computer resources.
Policies are usually defined during the design of the system. These are usually default in settings. Others are defined and or modified during installation of the addon and or third-party software.
Computer Security Policies are used to exact the nature and use of an organisations computers systems. IT Policies are divided into 5 classes namely:
General PoliciesServer PoliciesVPN PoliciesBack-Up PoliciesFirewall Access and Configuration PoliciesCheers!
Write the code to read 3 input values for the length, height and width of a cuboid, then calculate the area and circumference.
Answer:
length = float(input("Enter the length: "))
height = float(input("Enter the height: "))
width = float(input("Enter the width: "))
area = 2 * (length * height + height * width + width * length)
circumference = 4 * (length + height + width)
print("The area is: " + str(area))
print("The circumference is: " + str(circumference))
Explanation:
*The code is in Python.
Ask the user to enter the length, height and width
Calculate the area and circumference using the formulas and print them
If we used an inadmissible heuristic in A* tree search, could it change the completeness of the search?
Answer:
No
Explanation:
If we used an inadmissible heuristic in A* tree search, it cannot change the completeness of the search, and this is because as long as a heuristic function is bounded, then A* tree search would visit all the nodes available and would definitely find a path to an existing goal
A* tree search is a search strategy that is used to find and establish an efficient path between points, and the node in a search tree can be visited several times as well
Classify each of the following acts as a violation of confidentiality, of data integrity, source integrity, or availability, or some combination thereof: a) A hacker obtains millions of Yahoo passwords. b) Anthony accidentally cuts the electricity from the server room. c) The NSA finds an efficient method to break AES. d) Anna registers the domain name, "JohnSmith" and refuses to let John Smith buy or use the domain name. e) Some malware encrypts the victim’s hard drive with a secret key and a criminal asks for a ransom to decrypt it. f) The NSA wiretaps the cell phone of a suspect in a criminal investigation. g) A foreign state actor finds a zero-day vulnerability for voting machines used in the US.
Answer:
A) Violation of Confidentiality and Source Integrity:
Passwords are very confidential information and are usually protected by both the owner and the ower of the system (which in this case is Yahoo). To obtain the passwords, the hacker had to illegally gain access to the source of the data which is on Yahoo servers. Hence a breach of confidentiality and lack of adequate integrity on the part of Yahoo.
B) Source Integrity: Anthony accidentally cuts the electricity from the server room. Why would he be able to do that? how did he gain access into the server room? This speaks to source integrity. People should not be able to access the server room except they are authorised.
C) Source Integrity and Confidentiality: NSA finds an efficient method to break AES. AES refers to the Advanced Encryption Standard. AES is a symmetric encryption technology known as a block cipher.
It is used by the United States Government for the classification of information. Their ability to break this code speaks to Violation of Source Integrity. In this case, they haven't exactly hacked any document. However, any document that was encrypted using this technology is already compromised at the source.
D) Anna registers the domain name, "JohnSmith" and refuses to let John Smith buy or use the domain name: Violation of Availability.
It is assumed here that John Smith was the original owner of the domain but it was highjacked at expiration and registered by Anna. This kind of breach is called Violation of Availability of the domain name.
E) Some malware encrypts the victim’s hard drive with a secret key and a criminal asks for a ransom to decrypt.
This move is called the Ransomeware attack. The Integrity of the source of information (which is the hard drive) is already compromised. This is a combination of Source Integrity or availability and confidentiality violation.
F) The wiretapping of a cell phone is a breach of confidentiality and data integrity.
G) when there is a vulnerability in a system or software that is unknown to those who should be interested, it is called a Zero-Day vulnerability. Where there is a Zero-Day vulnerability there could be a violation of confidentiality, data integrity, source data and or it's availability.
Cheers!
The Secure Sockets Layer which relies on __________ for encrypting the data between client and server
Answer: symmetric encryption
Explanation:
The Secure Sockets Layer (SSL) protocol is required by the Web servers and the web browsers in order to protect the data of the users during transfer through the creation of an encrypted channel that is unique for private communications that occur over the Internet.
The Secure Sockets Layer relies on the encryption in order to secure the link that exists between the client and the server which is the website.
This implies that the encryption and also the decryption of the data will be done using a cryptographic key that is shared. The cryptographic key will be generated and shared on accordance with transport layer security handshake.
4. Discuss the advantages and disadvantages of using the same system call interface for both files and devices. Why do you think operating system designers would use the same interface for both
Answer:
According to the principles of design, Repetition refers to the recurrence of elements of the design
One of the advantages of this is that it affords uniformity. Another is that it keeps the user of such a system familiar or with the interface of the operating system.
One major drawback of this principle especially as used in the question is that it creates a familiar route for hackers.
Another drawback is that creates what is called "repetition blindness". This normally occurs with perceptual identification tasks.
The phenomenon may be due to a failure in sensory analysis to process the same shape, figures or objects.
Cheers!
If a process does not call exec after forking, A. the program specified in the parameter to exec will replace the entire process B. all the threads should be duplicated C. all the threads should not be duplicated D. none of above
Answer:
b) all the threads should be duplicated
Explanation:
The fork provides a process to start a new one, and the new process is not the same program. The exec system call com in play. Exec replaces the currently running process with information. The process is launching a new program firstly fork and create a new process. Exec load into memory. Fork copies of all attribute the new process except for memory. A clone system call implements the kernel fork. Forking provides the existing process. And the thread should be duplicated.
When discussing the behavior of vulnerability assessments which choice will exploit a weakness?
a) Penetration test
b) Vulnerability scan
c) Intrusive
d) Gray box
e) Credentialed vulnerability scan
f) Non-credentialed vulnerability scan
Answer:
a) Penetration test
Explanation:
A penetration test, often referred to as a pen test, is part of important process in the development of internet facing service. It is a process of determining if vulnerabilities are actually exploitable in a particular environment.
In other words, it is a process that involves a simulated cyber attack against computer system to check for exploitable vulnerabilities or attempts to actively exploit weaknesses in an environment.
Hence, when discussing the behavior of vulnerability assessments the choice that will exploit a weakness is PENETRATION TEST.
When discussing the behavior of vulnerability assessments, the choice which will exploit a weakness is: A) Penetration test.
Cyber security can be defined as a preventive practice to systematically protect computers, software applications (programs), networks, electronic devices, servers and user data from potential attack, damage, theft or an unauthorized access, especially through the use of technologies, frameworks, integrity principles, processes, penetration test and network engineers.
A vulnerability can be defined as a weakness in an automated internal control system and security procedures, which may be exploited by an attacker (hacker) to gain unauthorized access to the data stored on a computer system or disrupt the information system.
Basically, vulnerability assessments can be used in the following ways:
Identify loopholes, risks and security threats. Prioritize and enhance an information system.Mitigate potential security threats.A penetration test is also referred to as pen test or ethical hacking and it can be defined as a cybersecurity technique that simulates a cyber attack against a user's computer system, so as to identify, test an check for exploitable vulnerabilities in a web software, network, etc.
This ultimately implies that, a penetration test avails an end user the ability to exploit a weakness and potential security threats during vulnerability assessments.
What is meat by text wrapping?
Answer:
Text wrap is a feature supported by many word processors that enables you to surround a picture or diagram with text. The text wraps around the graphic (picture or diagram).
Explanation:
Hope this helps :)
Write a Java program to get the values stored in a four-by-five array of integers and store those values in a one-dimensional array referred by the name sorted1Darray . This array will have all the numbers in increasing order (remember the bubble sort!!) !
Answer:
done
Explanation:
int a[][] = new int[4][4];
Random r = new Random();
for(int i=0;i<4;i++)
for(int j=0;j<4;j++)
{
a[i][j]=r.nextInt()%100;
}
int sorted1Darray[] = new int [16];
int k=0;
for(int i=0;i<4;i++)
for(int j=0;j<4;j++)
sorted1Darray[k++]=a[i][j];
//now sorting using bubble sort
for(int i=0;i<16;i++)
for(int j=0;j<16;j++)
if(sorted1Darray[i]<sorted1Darray[j])
{
int t= sorted1Darray[i];
sorted1Darray[i]=sorted1Darray[j];
sorted1Darray[j]=t;
}
System.out.println("Sorted array:");
for(int i=0;i<16;i++)
System.out.print(sorted1Darray[i]+" ");
System.out.println();
"Players The files SomePlayers.txt initially contains the names of 30 football play- ers. Write a program that deletes those players from the file whose names do not begin with a vowel."
Answer:
I am writing a Python program that deletes players from the file whose names whose names do not begin with a vowel which means their names begin with a consonant instead. Since the SomePlayers.txt is not provided so i am creating this file. You can simply use this program on your own file.
fileobj= open('SomePlayers.txt', 'r')
player_names=[name.rstrip() for name in fileobj]
fileobj.close()
vowels = ('a', 'e', 'i', 'o', 'u','A','E','I','O','U')
player_names=[name for name in player_names
if name[0] in vowels]
fileobj.close()
print(player_names)
Explanation:
I will explain the program line by line.
First SomePlayers.txt is opened in r mode which is read mode using open() method. fileobj is the name of the file object created to access or manipulate the SomePlayers.txt file. Next a for loop is used to move through each string in the text file and rstrip() method is used to remove white spaces from the text file and stores the names in player_names. Next the file is closed using close() method. Next vowels holds the list of characters which are vowels including both the upper and lower case vowels.
player_names=[name for name in player_names
if name[0] in vowels]
This is the main line of the code. The for loop traverses through every name string in the text file SomePlayers.txt which was first stored in player_names when rstrip() method was used. Now the IF condition checks the first character of each name string. [0] is the index position of the first character of each players name. So the if condition checks if the first character of the name is a vowel or not. in keyword is used here to check if the vowel is included in the first character of every name in the file. This will separate all the names that begins with a vowel and stores in the list player_names. At the end the print statement print(player_names) displays all the names included in the player_names which begin with a vowel hence removing all those names do not begin with a vowel.
You have a 20-bit network part and a 4-bit subnet part. How many hosts can you have per subnet?
A) 14
B) 16
C) 254
D) none of the above
Answer:
tiddies
Explanation:
sukk
A school has 100 lockers and 100 students. All lockers are closed on the first day of school. As the students enter, the first student, denoted S1, opens every locker. Then the second student, S2, begins with the second locker, denoted L2, and closes every other locker (i.e. every even numbered locker). Student S3 begins with the third locker and changes every third locker (closes it if it was open, and opens it if it was closed). Student S4 begins with locker L4 and changes every fourth locker. Student
S5 starts with L5 and changes every fifth locker, and so on, until student S100 changes L100.
After all the students have passed through the building and changed the lockers, which lockers areopen? Write a program to find your answer.
(Hint: Use an array of 100 boolean elements. each of which indicates whether a locker is open (true) or closed (false). Initially, all lockers are closed.)
Answer:
Following are the code to this question:
public class Locker //defining a class Locker
{
public static void main(String[] ax)//defining main method
{
boolean[] locker = new boolean[101]; //defining boolean array locker that's size is 100.
int j,s1,k1,x;
x=locker.length;
for (j=1;j<x; j++)//defining loop to assigns value false in locker array
{
locker[j] = false;// assign value false
}
for (j=1;j<x; j++)//defining loop loop to assign value true in array
{
locker[j] = true;//assign value true
}
for(s1=2; s1<x; s1++)//defining loop to count locker from 2nd place
{
for(k1=s1; k1<x; k1=k1+s1)// defining inner loop to assign value
{
if(locker[k1]==false) //defining if block for check false value
{
locker[k1] = true;// if condition is true it assign value true
}
else //defining else block
{
locker[k1] = false;//assign value false in locker array
}
}
}
for(s1=1; s1<x; s1++)//defining loop to print locker value
{
if (locker[s1] == true) //defining if block that check Locker array value is equal to true
{
System.out.println("Locker " + s1 + " Open");//print Locker value with message
}
}
}
}
Output:
Locker 1 Open
Locker 4 Open
Locker 9 Open
Locker 16 Open
Locker 25 Open
Locker 36 Open
Locker 49 Open
Locker 64 Open
Locker 81 Open
Locker 100 Open
Explanation:
In the above code, a class "Locker" is declared, inside the class main method is declared, in which a boolean array "locker" is declared that's size is 100, in the next line fouth integer variable " j,s1,k1, and x" is declared, in which variable x is used to hold the boolean array length value, and other variable used in the loop.
In the next step, two for loop is declared, in the first loop assign value "false" in locker array and in seconde loop it assigns the value "true".In the next step, multiple for loop it uses if block uses to check locker value equal to false then assign value true otherwise assign value false. At the last another loop is declared, that uses if block to check locker value is equal to true and print its value with the message.Modify the DemoSalesperson application so each Salesperson has a successive ID number from 111 through 120 and a sales value that ranges from $25,000 to $70,000, increasing by $5,000 for each successive Salesperson. Save the file as DemoSalesperson2.java.
Answer:
Here is the modified DemoSalesperson2
public class DemoSalesperson2{ // class DemoSalesperson2
public static void main(String[] args) { //start of main() function body
SalesPerson[] sp = new SalesPerson[10]; // creates an array of SalesPerson object named sp
int start_id =111; // assign 111 to starting id number
double start_sal=25000; //assign 25000 to starting salary means salary will start from amount 25000
for (int i =0; i<sp.length; i++) { //loop iterates until the value of loop variable i remains less then length of the array object sp
sp[i] =new SalesPerson(start_id+i,start_sal+5000*(i)); /*at each iteration ID number from 111 through 120 and a sales value that ranges from $25,000 to $70,000, increasing by $5,000 for each successive is displayed using object array sp[] which calls the SalesPerson constructor to access id and sales */
System.out.println(sp[i].getId()+" "+sp[i].getAnnualSales() ); } } } /*uses object sp of class SalesPerson to access the methods getId which returns the id and getAnnualSales method which returns the annual sales, to display id and annual sales */
Explanation:
The question first requires a SalesPerson class with these requisites:
Class name: Salesperson.
Data fields for Salesperson: int ID number , double annual sales amount.
Methods: constructor SalesPerson() that requires values for both data fields, as well as get and set methods for each of the data fields.
So according to the complete question's requirement, I have implemented SalesPerson class:
public class SalesPerson { // class name
//data members: integer type id variable and double type sales variable
private int id;
private double sales;
public SalesPerson(int id_no, double annual_sales) { //constructor that requires values for id and sales
id = id_no;
sales = annual_sales; }
public int getId() { //accessor getId() method to get or access the value of id data field
return id; }
public void setId(int id_no) { //mutator setId to set the value of id data field
id = id_no; }
public double getAnnualSales() { //accessor getAnnualSales() method to get or access the value of sales data field
return sales; }
public void setAnnualSales(double annual_sales) { //mutator setAnnualSales to set the value of sales data field
sales = annual_sales; } }
However you can use my DemoSalesperson2 application for your own SalesPerson class.
Now I will explain the working of for loop used in DemoSalesperson2
Iteration 1:
i=0
i<sp.length is true because length of sp[] is 10 so i<10
This means the body of for loop will execute.
The statement inside the body of for loop is :
sp[i] =new SalesPerson(start_id+i,start_sal+5000*(i));
class SalesPerson constructor is used to access the data members of SalesPerson class
start_id = 111
start_sal=25000
start_id+i = 111 + 0 = 111
start_sal+5000*(i) = 25000 + 5000 (0) = 25000
The values 111 and 25000 are stored to sp[0] means at the first index of the sp array.
System.out.println(sp[i].getId()+" "+sp[i].getAnnualSales() );
This statement uses sp object to get access to the getId and getAnnualSales methods to print the id number and sales amount.
So the output at 1st iteration is:
111 25000.0
Iteration 1:
The value of i is incremented to 1 so now i = 1
i<sp.length is true because length of sp[] is 10 so i<10
This means the body of for loop will execute.
The statement inside the body of for loop is :
sp[i] =new SalesPerson(start_id+i,start_sal+5000*(i));
class SalesPerson constructor is used to access the data members of SalesPerson class
start_id = 111
start_sal=25000
start_id+i = 111 + 1 = 112
start_sal+5000*(i) = 25000 + 5000 (1) = 25000 + 5000 = 30000
The values 111 and 25000 are stored to sp[1] means at the first index of the sp array.
System.out.println(sp[i].getId()+" "+sp[i].getAnnualSales() );
This statement uses sp object to get access to the getId and getAnnualSales methods to print the id number and sales amount.
So the output at 1st iteration is:
112 30000.0
The loop keeps iterating and the value of id is incremented by 1 and value of sales is increased by 5000 at every iteration.
This loop continues to execute until the value of i exceeds the length of sp array i.e. 10.
The values from iteration 1 to 8 following the above explanation are:
Iteration 1:
111 25000.0
Iteration 2:
112 30000.0
Iteration 3:
113 35000.0
Iteration 4:
114 40000.0
Iteration 5:
115 45000.0
Iteration 6:
116 50000.0
Iteration 7:
117 55000.0
Iteration 8:
118 60000.0
Iteration 9:
119 65000.0
Iteration 10:
120 70000.0
At iteration 11 the for loop body will not execute as value of i at 11th iteration is i = 10 and i<sp.length evaluates to false as i = sp.length because length of sp array is 10 and now the value of i is also 10. So the loop ends. Screenshot of the program and its output is attached.
In e-mail, SSL/TLS provides ________. link encryption end-to-end encryption both link encryption and end-to-end encryption neither link encryption nor end-to-end encryption
Answer:
link encryption
Explanation:
In e-mail, SSL/TLS provides link encryption.
The SSL is an acronym for Secured Socket Layer and it is one of the secured way of authenticating and encrypting data between a computer and the mail server.
In the case of a TLS, it is an acronym for Transport Layer Security and it basically is used for providing authentication and encryption of data between two communicating systems on a network.
This ultimately implies that, SSL/TLS are standard network protocols that provides data integrity and privacy to users when communicating over the internet or networking devices as they're made to encrypt user credentials and data from unauthorized access. The SSL/TLS are an application layer protocol used for the encryption of mails sent over the internet, in order to protect user information such as username and password.
#Write a function called "angry_file_finder" that accepts a #filename as a parameter. The function should open the file, #read it, and return True if the file contains "!" on every #line. Otherwise the function should return False. # #Hint: there are lots of ways to do this. We'd suggest using #either the readline() or readlines() methods. readline() #returns the next line in the file; readlines() returns a #list of all the lines in the file. #Write your function here!
Answer:
I am writing a Python function:
def angry_file_finder(filename): #function definition, this function takes file name as parameter
with open(filename, "r") as read: #open() method is used to open the file in read mode using object read
lines = read.readlines() #read lines return a list of all lines in the file
for line in lines: #loops through each line of the file
if not '!' in line: #if the line does not contains exclamation mark
return False # returns False if a line contains no !
return True # returns true if the line contains exclamation mark
print(angry_file_finder("file.txt")) call angry_file_finder method by passing a text file name to it
Explanation:
The method angry_file_finder method takes a file name as parameter. Opens that file in read mode using open() method with "r". Then it reads all the lines of the file using readline() method. The for loop iterates through these lines and check if "!" is present in the lines or not. If a line in the text file contains "!" character then function returns true else returns false.
There is a better way to write this method without using readlines() method.
def angry_file_finder(filename):
with open(filename, "r") as file:
for line in file:
if '!' not in line:
return False
return True
print(angry_file_finder("file.txt"))
Above method opens the file in read mode and just uses a for loop to iterate through each line of the file to check for ! character. The if condition in the for loop checks if ! is not present in a line of the text file. If it is not present in the line then function returns False else it returns True. This is a more efficient way to find a character in a file.
If a program writes more information into the computer's memory than the memory was designed to hold, it is a(n) ___________ attack
Answer:
Buffer-overflow.
Explanation:
If a program writes more information into the computer's memory than the memory was designed to hold, it is a buffer-overflow attack.
A buffer in computer technology can be defined as a temporary area set aside for data storage. Buffers reside in the random access memory (RAM). In the event that, a system process or program places more data (much more than what was originally or initially intended to be allocated for data storage) in a buffer, the extra data overflows. Consequently, this would result in having some of the data to flow into other buffers and thus, causing the data to be overwritten or corruption of the data being held in that buffer.
For instance, we can liken a buffer-overflow to pouring water (data) into a container (program memory), once it is filled the water begins to overflow as the container has reached its maximum amount.
In a buffer-overflow attack, the hacker or attacker use the extra data to influence certain unauthorized actions such as getting privy informations, damaging a file, compromising a data, corrupting a software program etc.
The common types of buffer-overflow attacks are;
1. Heap-overflow attack.
2. Stack-overflow attack.
3. Unicode-overflow attack.
4. Integer-overflow attack.
In conclusion, the buffer-overflow attack could be prevented through the randomization of the address space.
Universal Containers (UC) has decided to build a new, highly sensitive application on the Force platform. The security team at UC has decided that they want users to provide a fingerprint in addition to username/password to authenticate to this application. How can an Architect support fingerprints as a form of identification for Salesforce authentication
Use an AppExchange product that does fingerprint scanning with native Salesforce Identity Confirmation
Design a two-thread consensus protocol for a Stack class that provides two methods: push(x) and pop(). push(x) pushes a value onto the top of the stack, and pop() removes and returns the most recently pushed value.
Answer:
D. 10, 5.
Explanation:
Write a sentinel-controlled while loop that accumulates a set of integer test scores input by the user until negative 99 is entered.
Answer:
Here is the sentinel-controlled while loop:
#include <iostream> //to use input output functions
using namespace std; // to identify objects like cin cout
int main(){ // start of main() function body
int test_score; // declare an integer variable for test scores
//prompts user to enter test scores and type-99 to stop entering scores
cout << "Enter the test scores (enter -99 to stop): ";
cin >> test_score; // reads test scores from user
while (test_score != -99){ // while loop keeps executing until user enters -99
cin >> test_score; } } // keeps taking and reading test scores from user
Explanation:
while loop in the above chunk of code keeps taking input scores from user until -99 is entered. Sentinel-controlled loops keep repeating until a sentinel value is entered. This sentinel value indicates the end of the data entry such as here the sentinel value is -99 which stops the while loop from iterating and taking the test score input from user.
The complete question is that the code should then report how many scores were entered and the average of these scores. Do not count the end sentinel -99 as a score.
So the program that takes input scores and computes the number of scores entered and average of these scores is given below.
#include <iostream> // to use input output functions
using namespace std; // to identify objects like cin cout
int main(){ //start of main function body
double sum = 0.0; // declares sum variable to hold the sum of test scores
int test_score,count =0;
/* declares test_scores variable to hold the test scores entered by user and count variable to count how many test scores input by user */
cout << "Enter the test scores (or -99 to stop: ";
//prompts user to enter test scores and type-99 to stop entering scores
cin >> test_score; // reads test scores from user
while (test_score != -99){ // while loop keeps executing until user enters -99
count++; /* increments count variable each time a test cores is input by user to count the number of times user entered test scores */
sum = sum + test_score; // adds the test scores
cin >> test_score;} // reads test scores from user
if (count == 0) // if user enters no test score displays the following message
cout << "No score entered by the user" << endl;
else //if user enters test scores
//displays the numbers of times test scores are entered by user
cout<<"The number of test scores entered: "<<count;
/* displays average of test scores by dividing the sum of input test scores with the total number of input test scores */
cout << "\n The average of " << count << " test scores: " <<sum / count << endl;}
The program along with its output is attached.
#Write a function called align_right. align_right should #take two parameters: a string (a_string) and an integer #(string_length), in that order. # #The function should return the same string with spaces #added to the left so that the text is "right aligned" in a #string. The number of spaces added should make the total #string length equal string_length. # #For example: align_right("CS1301", 10) would return the #string " CS1301". Four spaces are added to the left so #"CS1301" is right-aligned and the total string length is #10. # #HINT: Remember, len(a_string) will give you the number of #characters currently in a_string.
Answer:
This program is written using Python Programming Language;
Comments are not used; however, see explanation section for detailed line by line explanation
See Attachment
Program starts here
def align_right(a_string,string_length):
if len(a_string) > string_length:
print(a_string)
else:
aligned=a_string.rjust(string_length)
print(aligned)
a_string = input("Enter a string: ")
string_length = int(input("Enter string length: "))
align_right(a_string,string_length)
Explanation:
Function align_right is declared using on line
def align_right(a_string,string_length):
This line checks if the length of the current string is greater than the input length
if len(a_string) > string_length:
If the above condition is true, the input string is printed as inputted
print(a_string)
If otherwise,
else:
The string is right justified using the next line
aligned=a_string.rjust(string_length)
The aligned string is printed using the next line
print(aligned)
The main function starts here
This line prompts user for a string
a_string = input("Enter a string: ")
This line prompts user for total string length
string_length = int(input("Enter string length: "))
This line calls the defined function
align_right(a_string,string_length)
To configure a router / modem, what type of IP interface configuration should you apply to the computer you are using?
Answer:
hello your question has some missing parts
To configure a router / modem, what type of IP interface configuration should you apply to the computer you are using to access the device administration web app?
answer ; Gigabit interface
Explanation:
To configure a router/modem the type of IP interface configuration you should apply to the computer you are using to access the the devices administration web app should be Gigabit interface.
This is because Gigabit interface offers a very efficient and high band width and also a very high speed link which operates at 1000 Mbps, or 1 Gbps and it is the the standard used due to the speed it offers as it also offers improved performance over Ethernet
Step1: This file contains just a program shell in which you will write all the programming statements needed to complete the program described below. Here is a sample of the current contents of areas.cpp 1 // Assignment 5 is to compute the area (s) WRITE A COMMENT BRIEFLY DESCRIBING THE PROGRAM PUT YOUR NAME HERE. 2 3 4 // INCLUDE ANY NEEDED HEADER FILES HERE 5 using namespace std;l 7 int main) 9// DEFINE THE NAMED CONSTANT PI HERE AND SET ITS VALUE TO 3.14159 10 11 // DECLARE ALL NEEDED VARIABLES HERE. GIVE EACH ONE A DESCRIPTIVE 12// NAME AND AN APPROPRIATE DATA TYPE 13 14// WRITE STATEMENTS HERE TO DISPLAY THE 4 MENU CHOICES 15 16// WRITE A STATEMENT HERE TO INPUT THE USERS MENU CHOICE 17 18// WRITE STATEMENTS TO OBTAIN ANY NEEDED INPUT INFORMATION 19// AND COMPUTE AND DISPLAY THE AREA FOR EACH VALID MENU CHOICE 20 / IF AN INVALID MENU CHOICE WAS ENTERED, AN ERROR MESSAGE SHOULD 21 /BE DISPLAYED 23 return 0 24 )
Step 2: Design and implement the areas.cpp program so that it correctly meets the program specifications given below Specifications: Sample Run Program to calculate areas of objects Create a menu-driven program that finds and displays areas of 3 different objects. The menu should have the following 4 choices 1 -- square 2 circle 3 - right triangle 4 - quit 1square 2 -- circle 3 -- right triangle 4quit Radius of the circle: 3.0 Area 28.2743 . If the user selects choice 1, the program should find the area of a square . If the user selects choice 2, the program should . If the user selects choice 3, the program should . If the user selects choice 4, the program should . If the user selects anything else (i.e., an invalid find the area of a circle find the area of a right triangle quit without doing anything choice) an appropriate error message should be printed
Answer & Explanation:
This program is written in C++ and it combines the step 1 and step 2 to create a menu driven program
Each line makes use of comments (as explanation)
Also, see attachment for program file
Program Starts Here
//Put Your Name Here; e.g. MrRoyal
//This program calculates the area of circle, triangle and square; depending on the user selection
//The next line include necessary header file
#include<iostream>
using namespace std;
int main()
{
//The next line defines variable pi as a constant with float datatype
const float pi = 3.14159;
// The next two lines declares all variables that'll be needed in the program
string choice;
float length, base, height, radius, area;
// The next four lines gives an instruction to the user on how to make selection
cout<<"Press 1 to calculate area of a square: "<<endl;
cout<<"Press 2 to calculate area of a circle: "<<endl;
cout<<"Press 3 to calculate area of a triangle: "<<endl;
cout<<"Press 4 to quit: "<<endl;
//This next line prompts user for input
cout<<"Your choice: ";
//This next line gets user input and uses it to determine the next point of execution
cin>>choice;
if(choice == "1") //If user input is 1, then the choice is area of square
{
cout<<"Length: "; //This line prompts user for length of the square
cin>>length; // This line gets the length of the square
area = length * length; //This line calculates the area
cout<<"Area: "<<area; //This line prints the calculated area
}
else if(choice == "2") //If user input is 2, then the choice is area of circle
{
cout<<"Radius: "; //This line prompts user for radius
cin>>radius; //This line gets radius of the circle
area = pi * radius * radius; // This line calculates the area
cout<<"Area: "<<area; //This line prints the calculated area
}
else if(choice == "3") //If user input is 2, then the choice is area of triangle
{
cout<<"Base: "; //This line prompts user for base
cin>>base; //This line gets the base
cout<<"Height: "; //This line prompts user for height
cin>>height; //This line gets the height
area = 0.5 * base * height; //This line calculates the area
cout<<"Area: "<<area; //This line prints the calculated area
}
else if(choice == "4") //If user input is 4, then the choice is to quit
{
//Do nothing and quit
}
else //Any other input is invalid
{
cout<<"Invalid Option Selected";
}
return 0;
}
Create a program that compares the unit prices for two sizes of laundry detergent sold at a grocery store.
Complete Question:
Create a program that compares the unit prices for two sizes of laundry detergent sold at a grocery store. Console Price Comparison Price of 64 oz size: 5.99 Price of 32 oz size: 3.50 Price per oz (64 oz): 0.09 Price per oz (32 oz): 0.11
Using Python
Answer:
This program does not make use of comments (See explanation section)
price64 = float(input("Price of 64 oz size: "))
price32 = float(input("Price of 32 oz size: "))
unit64 = price64/64
unit32 = price32/32
print("Unit price of 64 oz size: ", round(unit64,2))
print("Unit price of 32 oz size: ", round(unit32,2))
if unit64>unit32:
print("Unit price of 64 oz is greater" )
else:
print("Unit price of 32 oz is greater" )
Explanation:
This line prompts the user for the price of 64 oz size
price64 = float(input("Price of 64 oz size: "))
This line prompts the user for the price of 32 oz size
price32 = float(input("Price of 32 oz size: "))
This line calculates the unit price of 64 oz size
unit64 = price64/64
This line calculates the unit price of 32 oz size
unit32 = price32/32
This next two lines print the unit prices of both sizes
print("Unit price of 64 oz size: ", round(unit64,2))
print("Unit price of 32 oz size: ", round(unit32,2))
The next line compares the unit prices of both sizes
if unit64>unit32:
This line is executed if the unit price of 64 oz is greater than 32 oz
print("Unit price of 64 oz is greater" )
else:
This line is executed, if otherwise
print("Unit price of 32 oz is greater" )
15. The primitive data types in JavaScript are:
Answer:
The three primitive data types in JavaScript are:
1. Numbers
2. Strings of text(known as "strings")
3. Boolean Truth Values (known as "booleans")
A ______________ deals with the potential for weaknesses within the existing infrastructure to be exploited.
Answer:
Threat assessment
Explanation:
A threat assessment deals with the potential for weaknesses within the existing infrastructure to be exploited.
Threat Assessment is further explained as the practice of determining or ascertaining the credibility and seriousness of a potential threat, and also the probability or chases of the threat will becoming a reality.
Threat assessment is separate to the more established procedure of violence-risk assessment, which seek to forcast an individual's general capacity and tendency to respond to situations violently. Instead, threat assessment aims to interrupt people on a route to commit "predatory or instrumental violence, the type of behavior connected with targeted attacks".
Answer:
Threat assessment
Explanation:
In an IT system, threat assessment is the analysis, evaluation and prevention of actions, events and operations that can greatly affect the system. It explores the potential for weaknesses within existing infrastructure to be exploited.
The threat assessment is a very important assessment that needs to be taken in virtually all domains. Here are a few reasons why it is important in an IT system;
i. Prevention of data loss
ii. Prevention of system or network of systems downtime
In carrying out threat assessment, one might need to do the following;
i. identification and prioritization of infrastructure including the software and hardware applications in the system.
ii. identification of potential threats such as system failure, natural disaster, unwanted access.
iii. identification of vulnerabilities in the system.
iv. analysing controls by determining who has access and who doesn't.
v. analysing the impact of a threat occurrence.
vi. documentation of analysis and evaluation results.
k- Add the code to define a variable of type 'double', with the name 'cuboidVolume'. Calculate the volume of the cuboid and set this variable value.
Answer:
Here is the JAVA program to calculate volume of cuboid:
import java.util.Scanner; // Scanner class is used to take input from user
public class CuboidVol { // class to calculate volume of cuboid
public static void main(String[] args) { // start of main() function body
Scanner input= new Scanner(System.in); //create Scanner class object
// prompts user to enter length of cuboid
System.out.println("Enter the cuboid length:");
double length=input.nextDouble(); //reads the input length value from user
// prompts user to enter width of cuboid
System.out.println("Enter the cuboid width:");
double width=input.nextDouble(); //reads the input width from user
// prompts user to enter height of cuboid
System.out.println("Enter the cuboid height:");
double height=input.nextDouble(); //reads the input height from user
/* the following formula is to calculate volume of a cuboid by multiplying its length width and height and a double type variable cuboidVolume is defined to store the value of the resultant volume to it */
double cuboidVolume= length*width*height; //calculates cuboid volume
//displays volume of cuboid and result is displayed up to 2 decimal places
System.out.printf("Volume of the cuboid (length " + length + "/ height " + height + "/ width" +width +" is: " + "%.2f",cuboidVolume); } }
Explanation:
The formula for the volume of a cuboid is as following:
Volume = Length × Width × Height
So in order to calculate the volume of cuboid three variable are required for length, width and height and one more variable cuboidVolume to hold the resultant volume of the cuboid.
The program is well explained in the comments added to each statement of the program. The program prompts the user to enter the value of height width and length of cuboid and the nextDouble() method is used to take the double type input values of height length and width. Then the program declares a double type variable cuboidVolume to hold the result of the volume of cuboid. Then the last printf statement is used to display the volume of cuboid in the format format "Volume of the cuboid (length / height / width ) is" and the result is displayed up to 2 decimal places.
The screenshot of the program along with its output is attached.
All of the following are examples of being computer literate, EXCEPT ________. knowing how to use the web efficiently knowing how to build and program computers knowing how to avoid hackers and viruses knowing how to maintain and troubleshoot your computer
Answer:knowing how to build and program computers.
Explanation:
Write a flowchart and C code for a program that does the following: Within main(), it asks for the user's annual income. Within main(), it calls a function called printIt() and passes the income value to printIt(). The printIt() function evaluates the income, and if the number is over 90000, it prints a congratulatory message. If the income is not over 90000, it prints a message of encouragement, like "You WILL make $50,000, if you keep going."
Answer:
I am writing a C program:
#include <stdio.h> //to use input output functions
void printIt(double annual_in){ //function printIt
if(annual_in >90000) //check if the income is greater than 90000
printf("Congratulations. Doing great!"); //print this message if income value is greater than 90000
else //if annual income is less than 90000
printf("You WILL make $50,000, if you keep going"); } //print this message if income value is less than 90000
int main() //start of main() funciton body
{ double income; //declares a double type variable income to hold annual income value
printf("Enter annual income: "); //prompts user to enter annual income
scanf("%lf",&income); //reads income value from user
printIt(income); } // calls printIt method by passing input income to that function
Explanation:
The program is well explained in the comments mentioned with each statement of the program. The flowchart is attached.
First flowchart flow1 has a separate main program flowchart which reads the income and calls printIt function. A second flowchart is of prinIt() method that checks the input income passed by main function and displays the corresponding messages and return.
The second flowchart flow2 is the simple flowchart that simply gives functional description of the C program as flowchart is not where giving function definitions is important. Instead of defining the function printIt separately for this C program, a high-level representation of functional aspects of this program is described in second flowchart while not getting into implementation details.