Hi, I provided some explanation of key terms.
Explanation:
Wireless hacking: basically the term refers to any unethical activity carried over a radio wave-connected network (eg Internet or Wifi connection) that would provide unauthorized access to information.
Hardware hacking: On the other hand, hardware hacking involves resetting physical hardware with the objective of using it in a way not originally intended by the manufacturer.
Management of software development consist of?
Chọn một:
a. Process
b. People
c. Project
d. All of the above
Answer:
d. All of the above
Explanation:
A software can be defined as a set of executable instructions (codes) or collection of data that is used typically to instruct a computer how to perform a specific task and to solve a particular problem.
A software development life cycle (SDLC) can be defined as a strategic process or methodology that defines the key steps or stages for creating and implementing high quality software applications.
In Computer science, management of software development consist of;
a. Process: it involves the stages through which a software application is analyzed, designed, developed, tested, etc.
b. People: it refers to the individuals involved in the software development process.
c. Project: it's the entirety of the stages a software goes through before it gets to the end user.
Assume a TCP sender is continuously sending 1,090-byte segments. If a TCP receiver advertises a window size of 5,718 bytes, and with a link transmission rate 26 Mbps an end-to-end propagation delay of 22.1 ms, what is the utilization
Answer:
for the 5 segments, the utilization is 3.8%
Explanation:
Given the data in the question;
segment size = 1090 bytes
Receiver window size = 5,718 bytes
Link transmission rate or Bandwidth = 26 Mbps = 26 × 10⁶ bps
propagation delay = 22.1 ms
so,
Round trip time = 2 × propagation delay = 2 × 22.1 ms = 44.2 ms
we determine the total segments;
Total segments = Receiver window size / sender segment or segment size
we substitute
Total segments = 5718 bytes / 1090 bytes
Total segments = 5.24587 ≈ 5
Next is the throughput
Throughput = Segment / Round trip
Throughput = 1090 bytes / 44.2 ms
1byte = 8 bits and 1ms = 10⁻³ s
Throughput = ( 1090 × 8 )bits / ( 44.2 × 10⁻³ )s
Throughput = 8720 bits / ( 44.2 × 10⁻³ s )
Throughput = 197.285 × 10³ bps
Now Utilization will be;
Utilization = Throughput / Bandwidth
we substitute
Utilization = ( 197.285 × 10³ bps ) / ( 26 × 10⁶ bps )
Utilization = 0.0076
Utilization is percentage will be ( 0.0076 × 100)% = 0.76%
∴ Over all utilization for the 5 segments will be;
⇒ 5 × 0.76% = 3.8%
Therefore, for the 5 segments, the utilization is 3.8%
why do we need vector graphics for creating logo
Answer:
hope it will help uplease mark brillient
Answer:
So we can maintain high quality designs at any graphic scale.
Explanation:
Unlike other graphic formats which simply define colors for fixed pixels, vector graphics define points and shapes (vectors) which are then used to draw the graphic at the desired and appropriate resolution.
Our graphic can look good at any resolution, no matter how large it gets. If we take a png or jpg file and make it extremely large, you'll notice the image begins to get blurry, because the pixels are being stretched and colors are being predicted or matched for the larger scale.
1.which screen appears after the password is typed (welcome, lock)
Answer:
it should be the welcome screen I will hope so lol
Answer:
welcomeyou don't know that much also
a computer cannot store the data and information for your future use true or false
10 features of the ribbon in microsoft word
Answer:yes
Explanation:
Yup
what are the functions of language in logic?
Answer:
Three basic functions of language: Informative, Expressive, and Directive Language
Informative language. Simply put, informative language can be looked at as though it is either right or wrong, or true or falseExpressive languageDirective languageDevelop a program that will maintain an ordered linked list of positive whole numbers. Your program will provide for the following options: a. Add a number b. Delete a number c. Search for a number d. Display the whole list of numbers At all times, the program will keep the list ordered (the smallest number first and the largest number last).
Answer:
#include <iostream>
using namespace std;
struct entry
{
int number;
entry* next;
};
void orderedInsert(entry** head_ref,entry* new_node);
void init_node(entry *head,int n)
{
head->number = n;
head->next =NULL;
}
void insert(struct entry **head, int n)
{
entry *nNode = new entry;
nNode->number = n;
nNode->next = *head;
*head = nNode;
}
entry *searchNode(entry *head, int n)
{
entry *curr = head;
while(curr)
{
if(curr->number == n)
return curr;
curr = curr->next;
}
}
bool delNode(entry **head, entry *ptrDel)
{
entry *curr = *head;
if(ptrDel == *head)
{
*head = curr->next;
delete ptrDel;
return true;
}
while(curr)
{
if(curr->next == ptrDel)
{
curr->next = ptrDel->next;
delete ptrDel;
return true;
}
curr = curr->next;
}
return false;
}
void display(struct entry *head)
{
entry *list = head;
while(list!=NULL)
{
cout << list->number << " ";
list = list->next;
}
cout << endl;
cout << endl;
}
//Define the function to sort the list.
void insertionSort(struct entry **h_ref)
{
// Initialize the list
struct entry *ordered = NULL;
// Insert node to sorted list.
struct entry *current = *h_ref;
while (current != NULL)
{
struct entry *next = current->next;
// insert current in the ordered list
orderedInsert(&ordered, current);
// Update current
current = next;
}
// Update the list.
*h_ref = ordered;
}
//Define the function to insert and traverse the ordered list
void orderedInsert(struct entry** h_ref, struct entry* n_node)
{
struct entry* current;
/* Check for the head end */
if (*h_ref == NULL || (*h_ref)->number >= n_node->number)
{
n_node->next = *h_ref;
*h_ref = n_node;
}
else
{
//search the node before insertion
current = *h_ref;
while (current->next!=NULL &&
current->next->number < n_node->number)
{
current = current->next;
}
//Adjust the next node.
n_node->next = current->next;
current->next = n_node;
}
}
int main()
{
//Define the structure and variables.
char ch;int i=0;
entry *newHead;
entry *head = new entry;
entry *ptr;
entry *ptrDelete;
//Use do while loop to countinue in program.
do
{
//Define the variables
int n;
int s;
int item;
char choice;
//Accept the user choice
cout<<"Enter your choice:"<<endl;
cout<<"a. Add a number"<<endl
<<"b. Delete a number"<<endl
<<"c. Search for a number"<<endl
<<"d. Display the whole list of numbers"<<endl;
cin>>choice;
//Check the choice.
switch(choice)
{
//Insert an item in the list.
case 'a' :
// cin>>item;
cout<<"Enter the element:"<<endl;
cin>>item;
//To insert the first element
if(i==0)
init_node(head,item);
//To insert remaining element.
else
{
ptr = searchNode(head,item);
//Check for Duplicate data item.
if(ptr==NULL)
{
insert(&head,item);
}
else
{
cout<<"Duplicate data items not allowed";
cout<<endl<<"EnterAgain"<<endl;
cin>>item;
insert(&head,item);
}
}
insertionSort(&head);
i=i+1;
break;
//Delete the item from the list
case 'b' :
int numDel;
cout<<"Enter the number to be deleted :"<<endl;
cin>>numDel;
//Locate the node.
ptrDelete = searchNode(head,numDel);
if(ptrDelete==NULL)
cout<<"Element not found";
else
{
if(delNode(&head,ptrDelete))
cout << "Node "<< numDel << " deleted!\n";
}
break;
//Serach the item in the list.
case 'c' :
cout<<"Enter the element to be searched :";
cout<<endl;
cin>>s;
ptr = searchNode(head,s);
if(ptr==NULL)
cout<<"Element not found";
else
cout<<"Element found";
break;
//Display the list.
case 'd' :
display(head);
break;
default :
cout << "Invalid choice" << endl;
break;
}
//Ask user to run the program again
cout<<endl<<"Enter y to countinue: ";
cin>>ch;
}while(ch=='y'||ch=='Y');
return 0;
}
output:
Write a recursive function called DrawTriangle() that outputs lines of '*' to form a right side up isosceles triangle. Function DrawTriangle() has one parameter, an integer representing the base length of the triangle. Assume the base length is always odd and less than 20. Output 9 spaces before the first '*' on the first line for correct formatting.
Answer:
Code:-
# function to print the pattern
def draw_triangle(n, num):
# base case
if (n == 0):
return;
print_space(n - 1);
print_asterisk(num - n + 1);
print("");
# recursively calling pattern()
pattern(n - 1, num);
# function to print spaces
def print_space(space):
# base case
if (space == 0):
return;
print(" ", end = "");
# recursively calling print_space()
print_space(space - 1);
# function to print asterisks
def print_asterisk(asterisk):
# base case
if(asterisk == 0):
return;
print("* ", end = "");
# recursively calling asterisk()
print_asterisk(asterisk - 1);
# Driver Code
n = 19;
draw_triangle(n, n);
Output:-
# Driver Code n = 19;| draw_triangle(n, n);
write a program that keeps taking integers until the user enters in python
int main {
//variables
unsigned long num = 0;
std::string phrase = " Please enter your name for confirmation: " ;
std::string name;
//codes
std::cout << phrase;
std::cin>> name;
while ( serial.available() == 0 ) {
num++;
};
if ( serial.avaliable() > 0 ) {
std::cout << " Thank you for your confirmation ";
};
};
Chassis intrusion detection is an option that can be enabled/disabled in the BIOS setup utility (if a BIOS comes equipped with this feature).Coupled with a hardware sensor mounted insided the computer case, this functionality can be used to check if the case was opened and display a notification alert during next boot.
a. True
b. False
Answer: True
Explanation:
Chassis intrusion detection is simply a vital security feature which is used typically by large corporate networks. It's simply an intrusion detection method which can be used in alerting a system administrator when there's a situation whereby a person opens a computer case which can then be investigated in order to know if the computer hardware has been tampered with.
It should also be noted that the chassis intrusion detection can then be either enabled or disabled in the BIOS setup utility if a BIOS comes equipped with this feature.
The correct option is True.
Based on the screenshot below which letter do you select to sort the items in an alphabetical order?
Answer:
the smallest number start with the first number of the alphabet
Cryptarithmetic algorithm
Answer:
CryptArithmetic or verbal arithmetic is a class of mathematical puzzles in which the digits are replaced by letters of the alphabet or other symbols. Usually it is required that each letter would be replaced by a unique digit. Each letter having different value from the other letters.
Explanation:
Cryptarithm now denotes mathematical problems usually calling for addition, subtraction, multiplication, or division and replacement of the digits by letters of the alphabet or some other symbols. ... Since D × B has only one digit, B must be 3 or less. The only two possibilities are 0 and 2.
Calculate the total time required to transfer a 500KB file in the following cases. Assume an RTT of 50ms, a packet size of 2KB, and an initial 2xRTT of handshaking before data is sent. A. If the bandwidth is 2Mbps, what is the Bandwidth-Delay Product (BDP)
Answer:
i) Total time = 2457.73 secs
ii) BDP = 0.01 Mbyte
Explanation:
Packet size : 2 Kb = ( 2 * 8192 ) bits = 16384 bits
Bandwidth : 2Mbps = 2,000,000 bits/sec
RTT = 50 ms = 0.050 secs
i) Determine total time required to transfer 500 kB
= Initial handshake + Time for transmission of all files + propagation delay
= 2 x RTT + Time for transmission + RTT /2
Total time = ( 2 * 0.05 ) + (1500 * 1.6384 )+ ( 0.050 / 2 ) = 2457.73 secs
ii) Determine the Bandwidth-delay product
= data link capacity * RTT
= 2 Mbps * 50 ms = 100,000 = 0.01 MByte
Suppose we can buy a chocolate bar from the vending machine for $1 each. Inside every chocolate bar is a coupon. We can redeem six coupons for one chocolate bar from the machine. This means that once you have started buying chocolate bars from the machine, you always have some coupons. We would like to know how many chocolate bars can be eaten if we start with N dollars and always redeem coupons if we have enough for an additional chocolate bar.For example, with 6 dollars we could consume 7 chocolate bars after purchasing 6 bars giving us 6 coupons and then redeeming the 6 coupons for one bar. This would leave us with one extra coupon. For 11 dollars, we could consume 13 chocolate bars and still have one coupon left. For 2 dollars, we could have consumed 14 chocolate bars and have two coupons left.Write a program that inputs a value for N and outputs how many chocolate bars we can eat and how many coupons we would have left over. Use a loop that continues to redeem coupons as long as there are enough to get at least one chocolate bar.
Answer and Explanation:
Using JavaScript:
/* program should take N input which represents the dollar amount and output how many chocolate bars and how many coupons we have*/
function chocolatebar(dollars){
var dollaramt= dollars;
var i;
for(i=0; i <= dollaramt; i++){
i=i+6
?
Alert ("you have 1 extra chocolate bar");
:
Alert ("keep buying chocolate bars to get more coupons for a bonus chocolate bar")
}
}
*
which of the statement is use to skip the loop and continue woth the next iteration ?
Answer:
C – continue statement with example. The continue statement is used inside loops. When a continue statement is encountered inside a loop, control jumps to the beginning of the loop for next iteration, skipping the execution of statements inside the body of loop for the current iteration.
Explanation:
PLS mark brainliest
hope it helped u
What are computer programs that make it easy to use and benefit from techniques and to faithfully follow the guidelines of the overall development methodology
Answer:
A Tool
Explanation:
Tools are computer programs that make it simple to use and benefit from techniques while adhering to the overall development methodology's guidelines. The correct option is A).
What are computer programs?A computer-aided software development case tool is a piece of software that aids in the design and development of information systems. It can be used to document a database structure and provide invaluable assistance in maintaining design consistency.
A computer software application is one that is developed to assist a particular organizational function or process, such as payroll systems, market analysis, and inventory control.
The goal of introducing case tools is to reduce the time and cost of software development, while also improving the quality of the systems created.
Therefore, the correct option is A) Tools.
To learn more about computer programs, refer to the below link:
https://brainly.com/question/9963733
#SPJ2
The question is incomplete. Your most probably complete question is given below:
A) Tools
B) Techniques
C) Data flow
D) Methodologies
a) Importance of Software Engineering I
Answer:
os, operating system is very important
what is a computer memory
Answer:
it is your answer
Explanation:
it is the storage space where data is kept.
write a java program that prompts the user to enter scores (each number an integer from 0 to 10) and prints the following output: how many scores entered the highest score the lowest score the average of all the scores the average with the highest and lowest score not counted if the user enters less than 3 scores print an error message instead of the output above
Answer:
Explanation:
The following is written in Java. It continues asking the user for inputs until they enter a -1. Then it saves all the values into an array and calculates the number of values entered, the highest, and lowest, and prints all the variables to the screen. The code was tested and the output can be seen in the attached image below.
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Scanner;
class Brainly {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
int count = 0;
int highest, lowest;
ArrayList<Integer> myArr = new ArrayList<>();
while (true) {
System.out.println("Enter a number [0-10] or -1 to exit");
int num = in.nextInt();
if (num != -1) {
if ((num >= 0) && (num <= 10)) {
count+= 1;
myArr.add(num);
} else {
System.out.println("Wrong Value");
}
} else {
break;
}
}
if (myArr.size() > 3) {
highest = myArr.get(0);
lowest = myArr.get(0);
for (int x: myArr) {
if (x > highest) {
highest = x;
}
if (x < lowest) {
lowest = x;
}
}
System.out.println("Number of Elements: " + count);
System.out.println("Highest: " + highest);
System.out.println("Lowest : " + lowest);
} else {
System.out.println("Number of Elements: " + count);
System.out.println("No Highest or Lowest Elements");
}
}
}
A light rag is striking the surface of earth. Which factor would make the light ray more likely to be absorbed than reflected?
Answer:
The answer is D.
Explanation:
because the other answers doesn't make sense.
Differentiate between TCP Reno and TCP Tahoe.
Answer:
They have different words
Explanation:
I hope it helps choose me the brainest
Why use LinkedIn automation for LinkedIn?
Answer:
Using LinkedIn automation tools to run successful outreach campaigns has become popular. It’s because these tools automate tedious networking tasks such as visiting profiles, collecting data, sending out bulk connection requests, messages, and follow-ups, etc.
With the help of the latest LinkedIn automation tools, you can quickly perform all the repetitive tasks while saving yourself a lot of time that you can use on actual relationship building and lead nurturing tasks.
However, LinkedIn isn’t really amused when using any bots or automation tools for LinkedIn.
What is the relationship between an organization’s specific architecture development process and the Six-Step Process?
Answer:
It is a method of developing architecture in various stages
Explanation:
The organization-specific architecture developmental process is a tested and repeated process for developing architecture. It made to deal with most of the systems. It describes the initial phases of development. While the six step process is to define the desired outcomes, Endorse the process, establish the criteria and develop alternatives. Finally to document and evaluate the process.Write a function named square_list that takes as a parameter a list of numbers and replaces each value with the square of that value. It should not return anything - it should mutate the original list.
Answer:
The function is as follows:
def square_list(myList):
for i in range(len(myList)):
myList[i] = myList[i]**2
print(myList)
Explanation:
This defines the function
def square_list(myList):
This iterates through the list elements
for i in range(len(myList)):
This squares each list element
myList[i] = myList[i]**2
This prints the mutated list
print(myList)
You are working from home using a microcomputer, a DSL modem, and a telephone connection to the Internet. Your company is connected to the Internet and has both local area networks and a mainframe computer. List all the different network connections involved in this operation.
Solution :
It is given that I am using a microcomputer at home along with DSL modem as well as a telephone network for the internet. My company has internet and has local area network and also a mainframe network.
Therefore, the different network connections involved are :
local area network to the wide area networkmicrocomputer to the internet connection3. Using Assume the following list of keys: 36, 55, 89, 95, 65, 75, 13, 62, 86, 9, 23, 74, 2, 100, 98 This list is to be sorted using the quick sort algorithm as discussed in this chapter. Use pivot as the middle element of the list. a. Give the resulting list after one call to the function partition. b. What is the size of the list that the function partition partitioned
Answer:
a. 36, 55, 13, 9, 23, 2, 62, 86, 95, 65,74, 75, 100, 98, 89
b. 15
Explanation:
Sites like Zillow get input about house prices from a database and provide nice summaries for readers. Write a program with two inputs, current price and last month's price (both integers). Then, output a summary listing the price, the change since last month, and the estimated monthly mortgage computed as (current_price * 0.051) / 12. Output each floating-point value with two digits after the decimal point, which can be achieved as follows: print('{:.2f}'.format(your_value))
Answer:
The program in Python is as follows:
current_price = int(input("Current Price: "))
last_price = int(input("Last Month Price: "))
change = current_price - last_price
mortgage = (current_price * 0.051) / 12
print('Change: {:.2f} '.format(change))
print('Mortgage: {:.2f}'.format(mortgage))
Explanation:
This gets input for current price
current_price = int(input("Current Price: "))
This gets input for last month price
last_price = int(input("Last Month Price: "))
This calculates the price change
change = current_price - last_price
This calculates the mortgage
mortgage = (current_price * 0.051) / 12
This prints the calculated change
print('Change: {:.2f} '.format(change))
This prints the calculated monthly mortgage
print('Mortgage: {:.2f}'.format(mortgage))
Answer:
current_price = int(input())
last_months_price = int(input())
change = current_price - last_months_price
mortgage = current_price * 0.051 / 12
print('This house is $', end= '')
print(current_price, end= '. ')
print('The change is $', end= '')
print(change, end= ' ')
print('since last month.')
print('The estimated monthly mortgage is $', end= '')
print(mortgage, end='0.\n')
Give three reasons to use a hard drive as mass storage.
Answer:
With that in mind, let's take a look at five places where hard drives shine.
Backups and Archives. ...
Media Libraries. ...
Large Capacity Storage. ...
NAS Drives and Security. ...
RAID Arrays. ...
Other Uses.
Based on the naming recommendations in the book, which of the following is a good identifier for a variable that will be used to hold an employee’s phone number? a. EmployeePhoneNumber b. emphonumber c. employee_phone_number d. empPhoneNum
Answer:
A good identifier for a variable that will be used to hold an employee’s phone number is:
a. EmployeePhoneNumber
Explanation:
An identifier is a string that uniquely identifies or names the entity or an object. The object or entity may be a constant, variable, structure, function, etc. Identifiers can be formed from uppercase and lowercase letters, digits, and underscores. Meaningful identifiers mostly favor the use of long descriptive names like EmployeePhoneNumber. However, the other options can still be used.
