Explanation:
With the great advances in computer systems today it is possible that we can connect and interact with people who are on the other side of the planet, we can study virtually without having to attend a university or school in person, we can even work from our own homes without having to travel to our workplace, which allows us to reduce transportation costs and time.
The above benefits have been possible thanks to the evolution of computer systems.But just as the evolution of computer systems brings great benefits, it also carries great risks for the future, in recent years there has been a considerable increase in cyber attacks, therefore it is necessary an advanced cybersecurity system that allows to quickly control and protect from external threats to organizations; As well as it is necessary to emphasize training in computer systems for people of all educational levels so that they are prepared and can give proper use to computer systems and thus also learn to protect themselves from cyber fraud.
The Curiosity Rover has recently landed on Mars and likes to send Twitter updates on its progress. If a tweet is posted 10 minutes after it was sent, how far is Curiosity from Earth? (Assume there is no network lag.)
Answer:
1.8 * 10^11 m
Explanation:
Given that :
Time taken for tweet to me posted after been sent, t = 10 minutes
t in seconds :
60 seconds = 1 minute
10 minutes = (10 * 60) = 600 seconds
Tweet sent will br transmitted at the speed of light, c = 3 * 10^8 m/s
Recall :
Speed = distance / time
Distance = speed * time
Distance of Curiosity from Earth = (3 * 10^8 * 600)
Distance of curiosity from earth = 1.8 * 10^11 m
In the home tab under the paragraph group of options what are you unable to do?
A choropleth map is used to
Group of answer choices
do a scatter plot.
show live satellite images.
present geographical regions in 3D.
present geographical regions coloured, shaded, or graded according to some variable.
The word “computer” has become associated with anything related to screens and keyboard. However, these are not the only parts that makes the computer function. The Central processing unit is often referred to as the brain of the computer which practically coordinates all the activities in the computer. Briefly describe the operation of the Central Processing Unit with emphasis on its sub components.
Explanation: The CPU is the main control chip which calculates what has to be done in order for your computer to function.
(Very interesting question you had. Hope this answer helps)
d. Which of the following computer has complex system? i. Hybrid computer ii. IBM computer iii. Mainframe computer iv. Analog computer
Answer:
Hybrid computer has complex system
Write a Racket two-way selection structure that will produce a list '(1 2 3) when the first element of a list named a_lst is identical to the atom 'a and an empty list otherwise. Note that you are NOT required to write a function definition!
Answer:
A
Explanation:
Which of the given assertion methods will return true for the code given below? Student student1 = new Student(); Student student2 = new Student(); Student student3 = student1;
The Student class is as follows.
public class Student{
private String name;
}
a. assertEquals(student1, student2);
b. assertEquals(student1, student3);
c. assertSame(student 1, student3);
d. assertSame(student1, student2);
Answer:
The true statements are :
A. assertEquals(student1,student2)
C. assertSame(student1,student3)
Explanation:
AssertEquals() asserts that the objects are equal, but assertSame() asserts that the passed two objects refer to the same object or not, if found same they return true, else return false.
Methods are collections of named code segments that are executed when evoked
The assertion method that will return true for the given code is: assertEquals(student1,student2)
The code segment is given as:
Student student1 = new Student();
Student student2 = new Student();
Student student3 = student1;
In Java, the assertEquals() method returns true if two objects have equal values.
Assume student1 and student2 have equal values, the statement assertEquals(student1,student2) will return true
Read more about java methods at:
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cpp Write a program that first gets a list of integers from input. The input begins with an integer indicating the number of integers that follow. Then, get the last value from the input, which indicates a threshold. Output all integers less than or equal to that last threshold value. Ex: If the input is:
Answer:
#include <iostream>
int main() {
// The length of the list
int l;
// The array containing the numbers
int *list;
// Threshold, last value in array
int thresh;
// Read in first value and create an array with the size of that value
scanf("%d", &l);
list = (int*) malloc(l * sizeof(int));
for(int i = 0; i < l; i++) {
scanf("%d", &list[i]);
}
thresh = list[l - 1];
// Print the values
for(int i = 0; i < l - 1; i++) {
if (list[i] <= thresh) {
printf("%d ", list[i]);
}
}
printf("\n");
free(list);
}
Explanation:
The program assumes at least two values are provided. The length of the list and the threshold.
We first read in an integer, and find out how many more integers we need to read. We create an array with the appropriate size, and loop through to fill the array with values. We know the last value is the threshold, and so we do one more loop to compare the values in the array with the threshold.
A function that uses the binary search algorithm to search for a value in an array a. repeatedly divides the elements into the number of segments you specify and discards the segments that don’t have the value until the value is found and a pointer to the element is returned b. repeatedly divides the elements in half and discards the half that doesn't have the value until the value is found and a pointer to the element is returned c. repeatedly divides the sorted elements in half and discards the half that doesn't have the value until the value is found and the index of the element is returned d. repeatedly divides the elements into the number of segments you specify and discards the segments that don’t have the value until the value is found and the index of the element is returned
Answer:
c. repeatedly divides the sorted elements in half and discards the half that doesn't have the value until the value is found and the index of the element is returned.
Explanation:
When binary search is used for algorithm search then the work is searched in the sorted array. There arrays are divided in half and then half of the elements are discarded who does not have value. The search does not completes until it founds the value and index of the element.
correct single error in this. Try to appear relaxed, but not to relaxed
Try to appear relaxed, but not to relaxed .
Which of the following definitions best describes the principle of separation of duties?
Answer:
A security stance that allows all communications except those prohibited by specific deny exceptions
A plan to restore the mission-critical functions of the organization once they have been interrupted by an adverse event
A security guideline, procedure, or recommendation manua
lAn administrative rule whereby no single individual possesses sufficient rights to perform certain actions
Which of the following is not a data visualization technique?
Answer:
Normalization
Explanation:
From the options given :
Boxplot is a data visualization techniqye used for representing numerical data in the form of a box such that it adequately conveys the five number summary if the dataset which are the minimum, maximum, lower quartile, median and upper quartile, it also depicts the presence of outlines.
Scatter plot are used depict the relationship between two variables on the x and y axis of a graph. Each point is a representation of the (x, y) value pairs of the observation.
Tag clouds are usually used to represent word, metatdata and other free form text using different colors and font sizes to give information about the data.
Normalization is the odd option out as it is used to restructure data in other to promote integrity of data.
python is an example of a low level programming language true or false?
How does a Cloud-first strategy approach a client's migration to the Cloud?
Answer:
by focusing on a single discipline based on the client's greatest area need.
Why use LinkedIn Sales Navigator?
Answer:
Salespeople and marketers waste tons of their time finding the right leads.
A lot of people think that LinkedIn Sales Navigator is only for advanced search but there are plenty of other perks as well. Its features and capabilities help you find the right people so you don’t waste your time and energy on manual searching.
Using sales navigator, you get access to a lot more features that are not present in the free version. You get limited searching with the free version.
With this LinkedIn automation tool, you can:
Search target audience with advanced filters Get recommendations for sales leads and track all the reports Use advanced filters anywhere else on the platform Get specific keyword mentions, job alerts, etc.Difference between hardcopy and hardware
You are the IT administrator for a small corporate network. You have recently experienced some problems with devices on the workstation in the Support Office. In this lab, your task is use Device Manager to complete the following:______.
The new network card you installed isn't working as expected (speed is only 1 Mbps). Until you can figure out what the problem is, disable the Broadcom network adapter and enable the Realtek network adapter. To make sure the network adapter has the latest drivers, update the driver for the Realtek network adapter by searching Microsoft Update. You recently updated the driver for your video card. However, the system experiences periodic crashes that you suspect are caused by the new driver. Roll back the driver to a previous version. Move the Ethernet cable to the integrated network port on the motherboard.
Answer:
I will fix it by my mind by thinking
Based on the above scenario, the steps to take is given below\
What is the management about?The first thing is to Right-click Start and click on Device Manager and then you expand Network adapters.
Later you Disable the network adapter and then Update the driver .
Learn more about Ethernet from
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Why are data silos problematic?
Answer:
Hampers collaboration
Resource wastage
Lack of data integrity
Explanation:
Data silos comes into play When different departments of an orgainiziations independently collects data needed for its operations. The finance, HR, administrative departments and so on collects their data and keeps it to themselves. As a result there is a repetitive and needless gathering and storage of already existing data, that is the data required by one group will have to be gathered again while it currently exists with another group. This leads to inefficient resource management and wastage. This practice also leads to data integrity as data stored differently across departments becomes inconsistent and less accurate over time. Team work and collaboration is gradually eroded as each group continues to hold on to its resources which poses a problem towards organizational growth.
g Add a throw statement to the processNumbers function that throws the message "An element in the list is not a number." if one of the elements in toProcess is not a number. Hint: The function isNaN() returns true if the parameter is not a number.
Answer and Explanation:
function processNumbers(alist){
var Ourarray= new array(alist);
Ourarray.foreach(
if(isNaN()){
Console.log( "An element in the list is not a number."};
break;
}
}
processNumbers(alist)
From the above, we have defined a function that takes an array parameter(the following array variable will make sure of that). We test each element in the array using foreach array function. The for each function runs the if statement and if isNan is true for each of the elements in the array.
Khi thu nhập giảm, các yếu tố khác không đổi, giá cả và sản lượng cân bằng mới của hàng hóa thông thường sẽ:
Answer:
thấp hơn
Explanation:
Explain how data structures and algorithms
are useful to the use of computers in
data management (10 marks)
Explain how data structure and uses of computer in data management
Answer:
Data management is a important tool for data handling.
Explanation:
A good knowledge about the data stricture and data management is a prerequisite for working with codes and algorithms. It helps to identify the techniques for designing the algorithms and data storage in the system. It helps to find out the data hierarchy. Thereby allowing the data management in an efficient and effective way. It can increase the skills in computer programmingDefine a generic function called CheckOrder() that checks if four items are in ascending, neither, or descending order. The function should return -1 if the items are in ascending order, 0 if the items are unordered, and 1 if the items are in descending order. The program reads four items from input and outputs if the items are ordered. The items can be different types, including integers, strings, characters, or doubles. Ex. If the input is: bat hat mat sat 63.2 96.5 100.1 123.5 the output is: Order: -1 Order: -1
Answer and Explanation:
Using javascript:
/*This function checks only for ascending order. This function cannot check ascending orders for strings, just integers or floats.*/
function CheckOrder(){
var takeinput= prompt("please enter four numbers")
var makeArray= takeinput.split("");
var numArray= new Array(4);
numArray= [makeArray];
var i;
for(i=0; i<=numArray.length; i++){
var nowElem= numArray[i];
if(numArray[1]){
Alert("let's check to see");
}
else if(
nowElem > numArray[i--]){
Alert("might be ascending order");
if(numArray[i]==numArray[2]){
var almosthere=numArray[2]
}
else if(numArray[i]==numArray[3]){
var herenow=numArray[3];
if(almosthere>herenow){
Alert("numbers are in ascending order");
}
}
}
else(
Console.log("there are no ascending orders here")
)
}
The function above can further be worked on to also check for descending order of four numbers(can also be further developed to check for strings). You need just tweak the else if and nested else if statements thus :
else if(
nowElem < numArray[i--]){
Alert("might be descending order");
if(numArray[i]==numArray[2]){
var almosthere=numArray[2]
}
else if(numArray[i]==numArray[3]){
var herenow=numArray[3];
if(almosthere<herenow){
Alert("numbers are in descending order");
}
}
}
Essay on "Impact of Digitalization"
Answer:
Digitization has a proven impact on reducing unemployment, improving quality of life, and boosting citizens' access to public services. Finally, digitization allows governments to operate with greater transparency and efficiency
Write an algorithm to output half the value for each of the five even numbers
There are some steps with the help of which we can easily find the output half of the value for each of 5 even numbers.
Such steps are provided below:
⇒ Step 1:
Start
⇒ Step 2:
Declare three variables such as "temp1", "temp2", "count".
⇒ Step 3:
Initialize
the count variable to zero (0), i.e., [tex]count \leftarrow 0[/tex] and
the temp variable to zero (0), i.e., [tex]temp \leftarrow 0[/tex]
⇒ Step 4:
Repeat the steps until the count will be 5 (count < 5)
[tex]temp1 = temp1+2;[/tex][tex]temp2=temp\frac{1}{2};[/tex][tex]print \ 'temp2';[/tex][tex]count \leftarrow count+1;[/tex]⇒ Step 5:
Stop
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A _______ read inputs the first data item from a file. It typically appears immediately before the loop that processes the data from the file and inputs the remaining data from the file.
Answer:
the answer is priming read
Explanation:
hope it helps u
Which is not a MARKETING impact of technology?
Social
Cultural
Economic
Environmental
Answer:
the answer is environmental
True or False.
Figuring out the learning styles of your instructors will help you better understand how they prefer to teach.
Write a program named lastname_firstname_cities.py that works with information about large cities. Your program will open the cities.txt downloadfile. Each line in the file has the name of a city, its country, and its population. The first few lines of the file look like this:
Answer and Explanation:
Open your text editor and open new file. Save new file file as lastname_firstname_cities.py. The program will open the file cities.txt downloadfile hence :
dfile= open(cities.txt, "r")
If we write this into our lastname_firstname_cities.py file it will open our cities.txt downloadfile in read mode and text mode(by default unless we specify binary mode which is for images)
is a security design principle to direct the selection of control layers for an organization's computing enclave to ensure its resilience against various methods of attack. This also reduces the likelihood of a single point of failure in the security of the overall system.
Answer:
Defense in Depth (DiD).
Explanation:
Cyber security can be defined as preventive practice of protecting computers, software programs, electronic devices, networks, servers and data from potential theft, attack, damage, or unauthorized access by using a body of technology, frameworks, processes and network engineers.
Defense in Depth (DiD) can be defined as a concept or framework in cyber security that typically involves the process of layering multiple defensive mechanisms and security control throughout an information technology (IT) system, so as to prevent data theft or an unauthorized access to user data.
Basically, this cyber security technique is designed such that when a layer of the defensive mechanism fails, another security layer step in to mitigate and prevent the attack. Thus, it causes redundancy when an attacker exploits a vulnerability in a system, a breach of security or when one of the security layers fail.
Write a C++ function using recursion that returns the Greatest Common Divisor of two integers. The greatest common divisor (gcd) of two integers, which are not zero, is the largest positive integer that divides each of the integers. For example, the god of 8 and 12 is 4.
Answer:
The function is as follows:
int gcd(int num1, int num2){
if (num2 != 0){
return gcd(num2, num1 % num2);}
else {
return num1;}
}
Explanation:
This defines the function
int gcd(int num1, int num2){
This is repeated while num2 is not 2
if (num2 != 0){
This calls the function recursively
return gcd(num2, num1 % num2);}
When num2 is 0
else {
This returns the num1 as the gcd
return num1;}
}
