Answer:
The method in Python is as follows:
def checkStr(strng):
if strng[0].isupper() and strng[-1] == "?":
return True
else:
return False
Explanation:
This defines the method
def checkStr(strng):
This checks if the first character i upper and if the last is "??
if strng[0].isupper() and strng[-1] == "?":
If the condition is true, the function returns true
return True
Else, it returns false
else:
return False
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
HEALTH AND SAFETY IN USING ICT TOOLS
Answer:
Health and Safety using ICT Tools.
...
Some of the long-term health effects are:
Headaches and tiredness. Using the mobile phone for hours can be very stressful and may lead to mild or severe headaches.
Creates joint pain. ...
Mobile phone battery explosion. ...
Induced ringing!
Answer:
ICT tools for health and safety. Find common health issues related to computer usage and other ICT tools.
Explanation:
Use of ICT instruments
ICT tools are computer-based equipment used for processing and communicating information and technology. There are certain ICT tools;
- TV.
- System of Public Address
- Radio
- Mobile Phone
- Computer
What are the adverse consequences of long-term television exposure?
You don't have eyes for hours to stare at the TV.
Taking hours on the TV can be dangerous and dangerous for the eye.
If you starve continuously, your eye will get overworked and this will cause an irritation of the eye, such as dry eye, red, itchy, and watery eyes, fatigue, eyelid weight or forehead, as well as eye concentration.
Certain long-term effects on health are:
1. Tiredness and headaches.
2. Make pain joint.
3. Battery explosion mobile phone.
4. Ringing induced! In ears.
Any action that causes harm to your computer is called a
1.Security harm
2.Security damage
3.Security risk
4.Security crime
Answer:
Security risk.
Explanation:
It is making your computer vulnerable to attacks and less secure.
Any action that causes harm to your computer is called a security risk. That is option 3.
What is security risk in computer?A computer is an electronic device that can be used to prepare, process and store data.
Security risk in computer is any action undertaken by a computer user that can lead to the loss of data or damage to hardware or software of the computer.
Some of the security risks that predisposes a computer to damage include the following:
unpatched software, misconfigured software or hardware, andbad habits such as keeping fluid close to the computer.Therefore, any action that causes harm to your computer is called a security risk.
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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
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
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Smartphones are more likely to be used than laptop computers for everyday ICT use.
Describe three advantages of using a smartphone rather than a laptop computer.
Answer:
it's small amd you can carry it everywhere
easy to use
long lasting battery
Explanation:
hope the answers are right:)
When an item is gray that means...
A. The item only works with another application
B. The item has been selected
C. The item is unavailable
D. The item has been deleted
A,B,C,orD, can anyone please help?
Answer:
B. The item has been selected
Answer:
C
Explanation:
When an item is unavailable, usually referring to the Technology field, it is gray. Gray items are things that are not created anymore, sold out or not enough supply. The color gray is usually used to symbol something bad, and not having a product is considered bad. Using our background knowledge, we can concude that the answer is option C.
Assume that a, b, and c have been declared and initialized with int values. The expression
!(a > b || b <= c)
is equivalent to which of the following?
a. a > b && b <= c
b. a <= b || b > c
c. a <= b && b > c
d. a < b || b >= c
e. a < b && b >= c
Answer:
Option c (a <= b && b > c) and Option e (a < b && b >= c) is the correct answer.
Explanation:
According to the question, the given expression is:
⇒ !(a > b || b <= c)
There will be some changes occur between the values such as:
! = It becomes normal> = It becomes <|| = It becomes &&So that the expression will be:
⇒ a <= b && b > c
and
⇒ a < b && b >= c
Other choices are not connected to the expression or the rules. So the above two alternatives are the correct ones.
Write a C++ program that reads a number and determines whether the number is positive, negative or zero using Switch operator method
Answer:
#include <iostream>
using namespace std;
template <typename T> int sgn(T val) {
return (T(0) < val) - (val < T(0));
}
int main()
{
cout << "Enter a number: ";
int number;
cin >> number;
switch (sgn(number)) {
case -1: cout << "The number is negative";
break;
case 0: cout << "The number is zero";
break;
case 1: cout << "The number is positive";
break;
}
}
Explanation:
You need the special sgn() function because a switch() statement can only choose from a list of discrete values (cases).
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
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.
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.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.
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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
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
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
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
List and describe at least two (2) very specific advantages of the CIF approach for enterprise-scale data warehousing for this company
Answer:
di ko po alam pa help po
Explanation:
pllssss
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.
system. Construct an ER diagram for keeping records for exam section of a college.
In a non-price rationing system, consumers receive goods and services first-come, first served. Give me an example of a time when a consumer may experience this.
When someone may be giving away something for free.
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 | *
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
For each compound below, identify any polar covalent bonds and indicate the direction of the dipole moment using the symbols δ +and δ-.
(a) HBr
(b) HCI
(c) H2O
(d) CH40
Answer:
H-Br bond is polar, hydrogen is partly positive and bromine is partly negative
H-Cl bond is polar, hydrogen is partly positive and bromine is partly negative
O-H bond in water is polar, hydrogen is partly positive and oxygen is partly negative
C-O bond in CH40 is polar, carbon is partly positive and oxygen is partly negative
Explanation:
A molecule possess a dipole moment when there is a large difference in electro negativity between two bonding atoms in the molecule.
The presence of dipole moments introduces polarity to the molecule. In all the molecules listed in the answer, the shared electron pair of the bond is closer to the more electronegative atom causing it to be partially negative while the less electronegative atom in the bond is partially positive.
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 test program that prompts the user to enter three sides of the triangle (make sure they define an actual triangle), a color, and a Boolean value to indicate whether the triangle is filled.
Answer:
Scanner in = new Scanner(System.in);
System.out.print("Please enter 3 sides of a triangle, color and " +
"whether it is filled or not (true false): ");
double s1 = in.nextDouble();
double s2 = in.nextDouble();
double s3 = in.nextDouble();
String color = in.next();
boolean filled = in.nextBoolean();
Triangle t1 = null;
try {
t1 = new Triangle(s1, s2, s3, color, filled);
}
catch (IllegalTriangleException ite) {
System.out.println(ite.toString());
}
System.out.println(t1.toString());
System.out.printf("Triangle color: %s, Triangle filled: %s%n" +
"Area: %.2f%n" +
"Perimeter: %.2f%n%n",
t1.getColor(),
t1.isFilled(),
t1.getArea(),
t1.getPerimeter());
Explanation:
Scanner in = new Scanner(System.in);
System.out.print("Please enter 3 sides of a triangle, color and " +
"whether it is filled or not (true false): ");
double s1 = in.nextDouble();
double s2 = in.nextDouble();
double s3 = in.nextDouble();
String color = in.next();
boolean filled = in.nextBoolean();
Triangle t1 = null;
try {
t1 = new Triangle(s1, s2, s3, color, filled);
}
catch (IllegalTriangleException ite) {
System.out.println(ite.toString());
}
System.out.println(t1.toString());
System.out.printf("Triangle color: %s, Triangle filled: %s%n" +
"Area: %.2f%n" +
"Perimeter: %.2f%n%n",
t1.getColor(),
t1.isFilled(),
t1.getArea(),
t1.getPerimeter());
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
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 ^_^
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.
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;
}
