Answer:
n
Explanation:
Answer:
kkkkkkkkikkkkkkkkkkkiikkiiii
Please help me with this question
Answer:
2
Explanation:
evaluate the formula for n=2, then it says:
a₂ = 2a₁ - 3·2
So
a₂ = 2·4 - 3·2 = 8-6
a₂ = 2
Question 6 Which of the following statements about datasets used in Machine Learning is NOT true? 1 point Testing data is data the model has never seen before and is used to evaluate how good the model is Training subset is the data used to train the algorithm Validation data subset is used to validate results and fine-tune the algorithm's parameters Training data is used to fine-tune algorithm’s parameters and evaluate how good the model is
Answer:
Training data is used to fine-tune the algorithm’s parameters and evaluate how good the model is
Explanation:
The statement about datasets used in Machine Learning that is NOT true is "Training data is used to fine-tune algorithm’s parameters and evaluate how good the model is."
This is based on the fact that a Training dataset is a process in which a dataset model is trained for corresponding it essentially to fit the parameters.
Also, Testing the dataset is a process of examining the performance of the dataset. This refers to hidden data for which predictions are determined.
And Validation of dataset is a process in which results are verified to perfect the algorithm's details or parameters
................. are used to summarize data (option) (a) report (b) action
i think report is right for the question
A practice in which eavesdroppers drive by buildings or park outside and try to intercept wireless network traffic is referred to as: Group of answer choices cybervandalism. driveby downloading. war driving. sniffing. driveby tapping.
Answer:
war driving.
Explanation:
Data theft can be defined as a cyber attack which typically involves an unauthorized access to a user's data with the sole intention to use for fraudulent purposes or illegal operations. There are several methods used by cyber criminals or hackers to obtain user data and these includes DDOS attack, SQL injection, man in the middle, phishing, etc.
Generally, the two (2) essential privacy concerns in the field of cybersecurity are knowing how personal data are collected and essentially how they're used by the beneficiaries or end users.
War driving can be defined as a form of cyber attack which typically involves having eavesdroppers in a moving vehicle drive by buildings or park outside so as to avail them the opportunity of intercepting a wireless network traffic using a smartphone or laptop computer and illegitimately obtain sensitive user informations for further unauthorized use or to perform other fraudulent activities.
Write a C++ program that creates a map containing course numbers and the room numbers of the rooms where the courses meet. The dictionary should have the following key-value pairs:
Course Number (key) Room Number (value)
CS101 3004
CS102 4501
The program should also create a map containing course numbers and the names of the instructors that teach each course. The map should have the following key-value pairs:
Course Number (key) Instructor (value)
CS101 Haynes
CS102 Alvarado
The program should also create a map containing course numbers and the meeting times of each course. The map should have the following key-value pairs:
Course Number (key) Meeting Time (value)
CS101 8:00am
CS102 9:00am
The program should let the user enter a course number, and then it should display the course's room number, instructor, and meeting time.
Answer:
Program approach:-
Using the necessary header file.Using the standard namespace I/O.Define the integer main function.Mapping course numbers and room numbers.Explanation:
//header file
#include<iostream>
#include<map>
//using namespace
using namespace std;
//main function
int main(){
//creating 3 required maps
map <string,int> rooms;
map <string,string> instructors;
map <string,string> times;
//mapping course numbers and room numbers
rooms.insert(pair<string,int>("CS101",3004));
rooms.insert(pair<string,int>("CS102",4501));
//mapping course numbers and instructor names
instructors.insert(pair<string,string>("CS101","Haynes"));
instructors.insert(pair<string,string>("CS102","Alvarado"));
//mapping course numbers and meeting times
times.insert(pair<string,string>("CS101","8:00am"));
times.insert(pair<string,string>("CS102","9:00am"));
char choice='y';
//looping until user wishes to quit
while(choice=='y' || choice=='Y'){
cout<<"Enter a course number: ";
string course;
cin>>course;//getting course number
//searching in maps for the required course number will return
//an iterator
map<string, int>::iterator it1=rooms.find(course);
map<string, string>::iterator it2=instructors.find(course);
map<string, string>::iterator it3=times.find(course);
if(it1!=rooms.end()){
//found
cout<<"Room: "<<it1->second<<endl;
}else{
//not found
cout<<"Not found"<<endl;
}
if(it2!=instructors.end()){
cout<<"Instructor: "<<it2->second<<endl;
}
if(it3!=times.end()){
cout<<"Meeting Time: "<<it3->second<<endl;
}
//prompting again
cout<<"\nDo you want to search again? (y/n): ";
cin>>choice;
}
for macroscale distillations, or for microscale distillations using glassware with elastomeric connectors, compare the plot from your simple distillation with that from your fractional distillation. in which case do the changes in temperature occur more gradually
Answer:
Fractional Distillation
Explanation:
Fractional Distillation is more effective as compared to simple distillation. In simple distillation, the temperature changes more gradually as compared to the fractional distillation
Consider the following class definitions.
public class Apple
{
public void printColor()
{
System.out.print("Red");
}
}
public class GrannySmith extends Apple
{
public void printColor()
{
System.out.print("Green");
}
}
public class Jonagold extends Apple
{
// no methods defined
}
The following statement appears in a method in another class.
someApple.printColor();
Under which of the following conditions will the statement print "Red" ?
I. When someApple is an object of type Apple
II. When someApple is an object of type GrannySmith
III. When someApple is an object of type Jonagold
a. I only
b. II only
c. I and III only
d. II and III only
e. I, II, and III
You're expecting visitors who will be demanding Mamet access Before they arrive, you can activate a Guest network that has its own ________ and a different password from the one used with the network where you store all your files.
functions
is the correct answer of your question ^_^
A buffer is filled over a single input channel and emptied by a single channel with a capacity of 64 kbps. Measurements are taken in the steady state for this system with the following results:
Average packet waiting time in the buffer = 0.05 seconds
Average number of packets in residence = 1 packet
Average packet length = 1000 bits
The distributions of the arrival and service processes are unknown and cannot be assumed to be exponential.
Required:
What are the average arrival rate λ in units of packets/second and the average number of packets w waiting to be serviced in the buffer?
Answer:
a) 15.24 kbps
b) 762 bits
Explanation:
Using little law
a) Determine the average arrival rate ( λ ) in units of packets/s
λ = r / Tr --- 1
where ; r = 1000 bits , Tr = Tw + Ts = 0.05 + (( 1000 / (64 * 1000 )) = 0.0656
back to equation 1
λ = 1000 / 0.0656 = 15243.9 = 15.24 kbps
b) Determine average number of packets w to be served
w = λ * Tw = 15243.9 * 0.05 = 762.195 ≈ 762 bits
2. A data catalog identifies all of the following, except: a. Attribute data type b. Attribute range of values c. Attribute constraints d. Attribute value for Instructor ID
Answer:
c. Attribute constraints
Explanation:
A data catalog identifies all of the following, except: "Attribute constraints"
The above statement is TRUE because a Data Catalog, a metadata management service, operates by searching for key data, understand and manage data for usefulness.
Data Catalog checks on the BigQuery datasets, tables, and views and checks both technical and business metadata by identifying the following attributes:
1. Data type
2. Range of values
3. Value for Instructor ID
what is the best motivation that you can do/give to make your employees stay?
i'd give fringe benefits to them every month
Explanation:
to encourage them to work on the mission statement and the business goal
Horizontal Navigation List Styles
Go to the Horizontal Navigation List Styles section. Karen has added a second navigation list that she wants to display horizontally. For all list items within the horizontal navigation list, create a style rule that displays the items as blocks with a width of 12.5% floated on the left margin.
Here is my code:
/* Horizontal Navigation List Styles */
.horizontal li {
display: block;
width: 12.5%;
float: left;
}
It's coming through as just a line and I have no idea how to fix it, please help!
Answer:
Explanation:
The best way to do this would be to use the following line of code
clear: left;
This would make sure that there are no floating elements (li's in this scenario) on the left side of each element. Which in this navigation list would be each individual element, causing it to move each element underneath the previous element. Therefore the entire CSS code would be
.horizontal li {
display: block;
width: 12.5%;
float: left;
clear: left;
}
An example can be seen in the attached picture below.
Why is Java declining in popularity?
Answer:
other languages are increasing in popularity
Explanation:
The simple main reason for this is that other languages are increasing in popularity. There are many open-source languages that are being optimized constantly and upgraded with new features. The ability for these languages to perform many tasks better than Java makes it the obvious choice when a developer is choosing a language to develop their program on. Two of these languages are Javascript and Python. Both can do everything that Java can and with less code, faster, and cleaner.
outline 3 computer system problem that could harm people and propose the way avoid the problem
Answer:
outline 3 computer system problem that could harm people and propose the way avoid the problem are :_
Computer Won't Start. A computer that suddenly shuts off or has difficulty starting up could have a failing power supply. Abnormally Functioning Operating System or Software. Slow Internet.Write a program Ticket.py that will allow the user to enter actual speed
limit, the speed limit at which the offender was travelling, and the number
of previous tickets that person has received. The application should
calculate and display how many miles over the speed limit the offender
was travelling, the cost of the speeding ticket, and court cost. Use $10.00
as the amount to be charged for each mile per hour over the speed limit.
The court cost should be $50.00
Answer:
Following are the code to the given question:
def speedlimit():#defining a method speedlimit
a= int(input("Enter the offender's speed in mph: "))#defining a variable for input value
lim = int(input("Enter the speed limit in mph: "))#defining a variable for input value
n = int(input("The number of previous tickets that person has received: "))#defining a variable for input value
if (lim >= 20) and (lim < 70):#defining if block to check speed is between 20 to 70
if a > lim:#use if to check lim value greater than a
print("Driver was going", a-lim, "mph over the limit.")#print calculated value with message
print("The cost of the speeding ticket $",10*(a-lim))#print calculated value with message
else:
print( "Driver was going at a legal speed.")#print message
else:
print('Invalid speed limit.')#print calculated value with message
print("Court cost $",(50 + n*20))#print calculated value with message
speedlimit()
Output:
Please find the attached file.
Explanation:
In this code, a method "speedlimit" is declared that defines three variables that are "a, lim, and n" in which we input value from the user-end.
Inside the method, a nested conditional statement is used that checks the speed value is between 20 to 70 if it is true it will go to the next condition in which it checks lim value greater than a. It will use a print message that will print the calculated value with the message.
A group of computer scientists wants to create a fixed-length compression algorithm. The simplest way to achieve compression is to use a fixed-length code generator. The idea behind this type of code generator is to assign a fixed-length bit sequence to each symbol of the alphabet. As part of this group of computer scientists, your goal is to write a program to determine the alphabet used by the message to be compressed (set of different characters in the input message), and the frequency of each symbol in the alphabet, using conditionals, loops, and arrays.
Answer:
Here the code is given as follows,
Explanation:
OUTPUT:
Message: AAAABBBCCDDDDDDDE
Number of symbols in the alphabet = 5
Characters in the alphabet = A,B,C,D,E
Number of bits per symbol = 3
Histogram showing the frequency of the symbols in the alphabet
A | ****
B | ***
C | **
D | *******
E | *
You would like to upgrade the processor in your system to a 64-bit processor. Which of the components will you most likely need to upgrade as well to take full advantage of the new processor
Answer: Operating system
Explanation:
The components that will be required to upgrade as well to take full advantage of the new processor is the Operating system.
The operating system manages the software resources and the computer hardware, through the provision of common services for the computer programs. It simply supports the basic function of the computer like task scheduling
Write a python program that will accept monthly salary amounts greater than zero but less
than or equal to 400,000.00 until the user enters the character ‘e’. After the user
enters the character ‘e’, calculate the net pay of all salaries by deducting income tax at
a rate of 25%, pension of 5% and housing contribution of 2% from each salary
entered. Additionally, print the number of salaries that were entered in the program
along with the number of salaries that exceed 300,000.00
Answer:
b=0
c=0
lol=list()
while True:
salary=input("Enter your salary: ")
if salary=="e" or salary=="E":
print("Thankyou!!")
break
else:
a=int(salary)
if a>=300000 and a<=400000:
c=c+1
if a<0 or a>400000:
print("Your salary is either too small or too big ")
if a>0 and a<=400000:
a=a-(25/100*a)-(5/100*a)-(2/100*a)
lol.append(a)
b=b+1
if a>=300000:
c=c+1
print(lol)
print("The number of salaries entered is: "+ str(b))
print("The number of salaries that exceeded 300000 is: "+str(c))
Which statement describes what happens when a user configures No Automatic Filtering in Junk Mail Options?
O No messages will ever be blocked from the user's mailbox.
Messages can still be blocked at the server level.
O Messages cannot be blocked at the network firewall.
O Most obvious spam messages will still reach the client computer,
PLEASE ANSWER CORRECTLY WILL GIVE 15pts
what is function of spacebar
Answer:
The function of a spacebar is to enter a space between words/characters when you're typing
To input a space in between characters to create legible sentences
What new details are you able to see on the slide when the magnification is increased to 10x that you could not see at 4x? What about 40x?
Answer:
x=10
Explanation:
just need points because i can scan questions anymore
mention 3 components that can be found at the back and front of the system unit
Answer:
Back
Power port, USB port, Game port
Front
Power button, USB port, Audio outlet
Explanation:
There are several components that can be found on the system unit.
In most (if not all) computer system units, you will find more component at the back side than the front side.
Some of the components that can be found at the back are:
Ports for peripherals such as the keyboard, mouse, monitor, USB ports, power port, etc.
Some of the components that can be found at the back are:
The power button, cd rom, audio usb ports, several audio outlets, video port, parallel ports, etc.
Note that there are more components on the system units. The listed ones are just a fraction of the whole components
Kesley has been hired to set up a network for a large business with ten employees. Which of the factors below will be
least important to her in designing the company's network?
the tasks performed by each computer on the network
the number of hours each employee works
O the number of computers that will be on the network
the way in which business documents are shared in the organization
TURN IT IN
NEXT QUESTION
ASK FOR HELP
A) Why should assembly language be avoided for general application development?
B) Under what circumstances would you argue in favor of using assembly language for developing an assembly language program?
C) What are the advantages of using a compiled language over an interpreted one?
D) Under what circumstances would you choose to use an interpreted language?
Answer:
(A) Assembly language should be avoided for general application development for the following reasons:
i. It is difficult to write assembly language codes. It does not contain many tools and in-built functions to help with the development of these applications.
ii. Since general application development requires that the application be machine independent, writing such applications in assembly language (which is a low level, machine dependent language) might be a pain as it would require that the writer have sufficient knowledge of hardware and operating systems.
(B) The following are the circumstances where assembly language should be used:
i. Assembly languages are low level languages that are very close to machine languages that the machine or processor understands. Therefore, when writing codes for programs that should directly communicate with the processor, assembly language should be used.
ii. Since assembly language codes are machine dependent, when there is a need to write applications for target machines, they should be used.
iii. If there is a need to have very great control of certain features of your application and resources to be consumed such as amount of RAM, clock speed e.t.c, assembly languages are a great tool.
(C) Some of the advantages of compiled language over an interpreted language are:
i. Compiled languages are way faster than interpreted languages because the compiled languages are converted directly into native machine codes that are easy for the processor to execute. Put in a better way, with compiled languages, codes are compiled altogether before execution and therefore reduces the overhead caused at run time. Interpreted languages on the other hand executes codes line after line thereby increasing the overhead at run time.
ii. Since codes are compiled first before execution in compiled languages, nice and powerful optimizations can be applied during the compilation stage.
(D) Interpreted languages could be chosen over compiled languages for the following reasons:
i. Interpreted languages are much more flexible and easier to implement than compiled languages as writing good compilers is not easy.
ii. Since interpreters don't need to convert first to intermediary codes as they execute these codes themselves, programs built with interpreters tend to be platform independent.
A pointer can be used as a function argument, giving the function access to the original argument.
A. True
B. False
Answer:
True
Explanation:
A pointer can be used as a function argument, giving the function access to the original argument.
Discuss at least 1 Microsoft Windows security features that could protect data?
Answer:
Virus & threat protection.
Explanation:
Monitor threats to your device, run scans, and get updates to help detect the latest threats.
One Microsoft Windows security feature that can help protect data is BitLocker Drive Encryption.
BitLocker is a full-disk encryption feature available in certain editions of Microsoft Windows, such as Windows 10 Pro and Enterprise. It provides protection for data stored on the system's hard drives or other storage devices.
By encrypting the entire drive, BitLocker helps safeguard the data against unauthorized access or theft, even if the physical drive is removed from the device. It uses strong encryption algorithms to convert the data into an unreadable format, ensuring that only authorized users with the appropriate encryption key or password can access and decrypt the data.
BitLocker also provides additional security features, such as pre-boot authentication, which requires users to enter a password or use a USB key to unlock the drive before the operating system loads. This prevents unauthorized users from accessing the encrypted data, even if they have physical access to the device.
Overall, BitLocker Drive Encryption is a powerful security feature in Microsoft Windows that can effectively protect data by encrypting entire drives and adding layers of authentication and protection against unauthorized access.
Learn more about Security here:
https://brainly.com/question/13105042
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For this activity, you will practice being both proactive and reactive to bugs. Both are necessary to get rid of errors in code.
Proactive:
Log in to REPL.it and open your Calculator program that you built in Unit 5.
In the index.js file, type and finish the following block of code that validates the input to make sure both are numbers (not letters or symbols):
try{
if (isNaN(…) || isNaN(…)){
throw …
}
else{
document.getElementById("answer").innerHTML = num1 + num2;
}
}
catch(e){
document.getElementById("answer")…
}
(Note: The || symbol is used in JavaScript to mean or . You can find this key to the left of the Z key if you’re using a PC or directly above the Enter key if you’re using a Mac.)
Add the finished code above to the correct place in your add() function. Make sure to delete this line since we moved it into the try block:
document.getElementById("answer").innerHTML = num1 + num2;
Paste the same code into the subtract() , multiply() , and divide() functions, making the necessary changes. Be careful with your divide() function since you already have an extra if else statement checking for a division by 0 mistake. (Hint: Cut and paste the entire if else statement inside the else block of your try statement.)
Test your program by typing in letters or symbols instead of numbers. Make sure you get the appropriate error message. (Note: The function is not supposed to check whether the text field is empty, only whether it contains non-numbers.)
When you are finished, share the link to your webpage with your teacher by clicking on the share button and copying the link.
Reactive:
The following Python program should print the sum of all the even numbers from 0 to 10 (inclusive), but it has two bugs:
x = 0
sum = 0
while x < 10:
sum = sum + x
x = x + 1
print(sum)
Complete a trace table and then write a sentence or two explaining what the errors are and how to fix them. You can choose whether to do the trace table by hand or on the computer. Turn in your trace table and explanation to your teacher.
Answer:
okk
Explanation:
Suppose that in a 00-11 knapsack problem, the order of the items when sorted by increasing weight is the same as their order when sorted by decreasing value. Give an efficient algorithm to find an optimal solution to this variant of the knapsack problem, and argue that your algorithm is correct.
Answer:
Following are the response to the given question:
Explanation:
The glamorous objective is to examine the items (as being the most valuable and "cheapest" items are chosen) while no item is selectable - in other words, the loading can be reached.
Assume that such a strategy also isn't optimum, this is that there is the set of items not including one of the selfish strategy items (say, i-th item), but instead a heavy, less valuable item j, with j > i and is optimal.
As [tex]W_i < w_j[/tex], the i-th item may be substituted by the j-th item, as well as the overall load is still sustainable. Moreover, because [tex]v_i>v_j[/tex] and this strategy is better, our total profit has dropped. Contradiction.
It has been a hectic day for the cyber security team. The team is struggling to decide to which incident to devote the most resources. You are estimating the amount of time taken to recover from each incident Which scope factor are you considering?
Answer:
This definitely is a project management question. The scope factors to be considered are:
Varying Resource Levels Time FactorCompliance with Regulatory Factors Requirements of Stakeholders Quality of Management RisksLegal FactorsExplanation:
Any element or factor that can advantageously advance a project or negatively impact it is usually referred to as Project Scope Factor.
It is considered a desirable or nice-to-have ability to be able to spot these factors to the end that the positive ones are enhanced whilst negative ones are mitigated.
Failure, for instance, to timeously and properly identify factors that can negatively impact a project is most likely to result in a negative outcome.
Cheers
Please Help Me!!!!!!!!!!!!!
A commercial photographer would most likely be employed by which of the following?
A business
A magazine
A travel agency
All the above
Explanation:
a magazine cause it helps put out commercial
