17. Which of the following keyboard shortcut is used to copy the selected text?
a. Ctrl+c
b. Ctrl+V
c. Ctrl+X
d. Ctrl+Z
Answer:
ctrl+c is used to copy the selected text
Answer:
A. Ctrl+c
Explanation:
I took the test, also you can use Command c and Command v to copy and paste.
which among the following shortcut key is used to check spelling
click Alt + f7 to check spelling
Answer:
Simply click Alt + F7 keys
Which of the following describes an iteration in a computer program?
Answer:
a set of instructions that can be run multiple times throughout a program
Explanation:
advantages of torsion in engineering
Answer:
Ascertain product failure
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Answer:
6.enable data to pass between computers in a network to aid communication between users. As a network engineer, you'll have responsibility for setting up, developing and maintaining computer networks within an organisation or between organisations.
7.Sony
At times, what seems to be an effective value network can also be vulnerable to quickly losing effectiveness. At one time, Sony Corporation set up a value network designed to have a "one-stop" gaming experience for its customers. From 2003 to 2008, Sony designed an all-encompassing gaming portal. However, the network was disrupted when computer hackers began breaking into the system and retrieving sensitive banking data from the network users. As a result, the effectiveness of the network was severely compromised.
Explanation:
People who know about phones, what do you think about the phone "Samsung Galaxy A21s"?
Answer:
iphone is better but if u like it then ok
Explanation:
An analyst suggests that the lower the number of clusters, would give us the strongest and most meaningful result, as opposed to a large number of clusters.
a. True
b. False
Answer:
a. True
Explanation:
Various studies have shown that this is true. Clusters allow you to group together large sets of data into smaller groups in order to find similarities between all the data. Having a smaller number of clusters has been proven to allow you to discover much simpler similarities which can have a much greater impact. Larger sets can help in discovering more unique similarities but they do not have as large of an impact and are less meaningful. This is also why it is recommended to have a lower number of clusters when analyzing data sets.
UNIX inodes are an example of an indexed file allocation scheme. What levels of indexing were they designed to support. A. Direct B. Single indirect C. Double indirect D. Triple indirect E. All of the above are supported by UNIX inodes.
Answer: E. All of the above are supported by UNIX inodes
Explanation:
An inode refers to the data structure that's in the UNIX operating systems which consists of vital information that has to do with the files that's within a file system.
It should be niteec that when there's creation of a file system in UNIX, then a set amount of inodes will be created too.
The levels of indexing that the UNIX inodes were designed to support include the direct, single indirect, double indirect and the triple indirect. Therefore, the correct option is E.
% Do not modify CalculateSum function maxSum = CalculateSum(userNum1, userNum2, userNum3) maxSum = MaxValue(userNum1, userNum2) + userNum3; end % Define a function MaxValue that returns the largest input value % Function inputs: numA, numB % Function output: maxNum % function maxNum ...
Answer:
The function in Python is as follows:
def MaxValue(userNum1, userNum2):
if userNum2>userNum1:
return userNum2
else:
return userNum1
Explanation:
This defines the function
def MaxValue(userNum1, userNum2):
This returns userNum2 if userNum2 is greater than userNum1
if userNum2>userNum1:
return userNum2
If otherwise, this returns userNum1
else:
return userNum1
A _____ virus uses the language of an application that records a sequence of keystrokes and instructions in an application, such as word processing or spreadsheet, to hide virus code.
Answer: macro virus
Explanation:
The virus that uses virus uses the language of an application which is vital in recording the sequence of the keystrokes and the instructions in an application, like spreadsheet or the word processing in order to hide virus code is the macro virus.
A macro virus is simply a computer virus which is written in same macro language that is being used for software programs. When a software application is being infected by the macro virus, it leads to a sequence of actions which automatically start when the application is being opened.
The most serious security threat to Bluetooth-enabled devices is ____, which occurs when a hacker gains access to the device and its functions without the owner's consent.
The most serious security threat to Bluetooth-enabled devices is [tex]\sf\purple{bluebugging}[/tex], which occurs when a hacker gains access to the device and its functions without the owner's consent.
[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{.}}}}}[/tex]
Write a program that receives a filename as user input. The file is structured as multiple lines containing numbers separated by a single space. For example, this would be an acceptable file:
Answer:
The solution in Python is as follows:
filename = input("File: ")
fll = open(filename, "r")
for line in fll:
for i in line.split():
print(i,end='\t')
print()
Explanation:
The complete question implies that the program reads a file and displays the file content in a structured way (tabs or spaces)
The explanation is as follows:
This gets input for the file name
filename = input("File: ")
This opens the file for read operation
fll = open(filename, "r")
This iterates through the lines of the file
for line in fll:
This iterates through each line (splitted by space)
for i in line.split():
This prints the current element followed by a tab
print(i,end='\t')
This starts printing on another line
print()
Which of the following answer choices best describes the algorithmic purpose of method num?
/** Precondition: i==0; */
public static int num(int[] ray, int i)
{
if( i >= ray.length ){
return 0;
}
if( ray[i] % 2 != 0 ){
return 1 + num( ray, i+1 );
}
else{
return 0 + num( ray, i+1 );
}
}
a. The method is counting the number of numbers in ray.
b. The method is counting the number of even numbers in ray.
c. The method is counting the number of occurrences of x in ray.
d. The method is counting the number of odd numbers in ray.
e. The method is summing all of the numbers in ray.
Answer:
d.
Explanation:
It is a recursive function that returns the number of odd numbers in ray starting at index i and above.
The depth of the recursion is equal to the length of ray.
Identify at least three tips you would give to people to stay safe on the Internet so that their information stays secure. Explain why these tips are useful.
Answer:
1. Do not give away personal information such as your address, school you go to, or anything like that (obvious reasons
2. Do not share your passwords because people can hack into your things
3. Don't make guessable passwords such as Cookies, ILovePizza, Money
What is congnitive overload
Explanation:
is a situation where the teacher gives too much information or too much many tasks to Learners simmultaneously , resulting in the learner being unable to process this information
Answer:
Cognitive loadLanguageWatchEditIn cognitive psychology, cognitive load refers to the used amount of working memory resources. There are three types of cognitive load: intrinsic cognitive load is the effort associated with a specific topic; extraneous cognitive load refers to the way information or tasks are presented to a learner; and germane cognitive load refers to the work put into creating a permanent store of knowledge (a schema).Cognitive load theory was developed in the late 1980s out of a study of problem solving by John Sweller.[1] Sweller argued that instructional design can be used to reduce cognitive load in learners. Much later, other researchers developed a way to measure perceived mental effort which is indicative of cognitive load.[2][3] Task-invoked pupillary response is a reliable and sensitive measurement of cognitive load that is directly related to working memory.[4] Information may only be stored in long term memory after first being attended to, and processed by, working memory. Working memory, however, is extremely limited in both capacity and duration. These limitations will, under some conditions, impede learning. Heavy cognitive load can have negative effects on task completion, and it is important to note that the experience of cognitive load is not the same in everyone. The elderly, students, and children experience different, and more often higher, amounts of cognitive load.The fundamental tenet of cognitive load theory is that the quality of instructional design will be raised if greater consideration is given to the role and limitations of working memory. With increased distractions, particularly from cell phone use, students are more prone to experiencing high cognitive load which can reduce academic success.[5]Explanation:
Hope it helps ^-^
#CarryOnLearning
If an audio signal is to be coded, either for compression or for digital transmission, it must undergo some form of quantization. Most often, a general technique known as vector quantization is employed for this task, but this technique must be tailored to the specific application so it will not be addressed here. In this assignment, we will observe the effect of uniformly quantizing the samples of two audio signals.
a) Record your voice for 4 seconds and play it again using predefined MATLAB audio functions.
b) Use your Uquant function to quantize each of these signals to 7, 4, 2 and 1 bits/sample.
c) Listen to the original and quantized signals and answer the following questions using the comments in the same MATLAB file:
1- For each signal, describe the change in quality as the number of b/sample is reduced?
2- For each signal, is there a point at which the signal quality deteriorates drastically?
3- At what point (if any) does it become incomprehensible?
4- Which signal's quality deteriorates faster as the number of levels decreases?
5. Do you think 4 b/sample is acceptable for telephone systems? ... 2 b/sample?
d) Use subplot to plot in the same figure, the four quantized speech signals over the index range 7201:7400.
Answer:
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Sum-of-minterms form is a _____. a. compact function notation that represents each literal by a number b. product term having exactly one literal for every function variable c. variable appearance in an expression in true or complemented form d. canonical form of a Boolean equation where the right-side expression is a sum-of-products
Answer: D. canonical form of a Boolean equation where the right-side expression is a sum-of-products
Explanation:
Sum-of-minterms form is refered to as the canonical form of a Boolean equation such that the right-side expression is the sum-of-products.
It should be noted that the minterms whose sum helps in defining the Boolean function will be the ones that give the 1's with regards to the functions in the truth table.
Suppose a class Car and its subclass Honda both have a method called speed as part of the class definition. rentalH refers to an object of the type Honda and the following statements are found in the code: rentalh.cost(); super.speed(); what will the first statement do?
A. Nothing will be called since the code will not compile as a result of multiple definitions of speed.
B. The cost method in Car will be called.
C. The cost method in Honda will be called.
D. Overloading will be used to determine which cost method to use.
Answer:
C. The cost method in Honda will be called.
Explanation:
The first statement will cause the cost method in Honda to be called. This is because rentalh is a object of the subclass Honda. Therefore, any method that is called using this object variable will target the elements within the Honda subclass. In this case, the cost() method is being called using the rentalh variable which will look for the cost() method within the scope of the Honda subclass. In order to target the parent class Car it would need to be called using the super variable as in statement 2.
A) Write "T" for true statement and "F" for false statement.
ii) Programming in machine level language is very easy.
iii) In Adobe Photoshop, Rectangle tool is used to draw rectangle shape
Answer:
ii. False
iii. True
Explanation:
Machine and assembly are referred to as a low level programming language used in writing software programs or applications with respect to computer hardware and architecture. Machine language is generally written in 0s and 1s, and as such are cryptic in nature, making them unreadable by humans but easily understandable to computers.
In view of the above, we can deduce that programming in machine level language is very difficult for humans.
Adobe Photoshop is a proprietary software application designed and developed by Adobe inc. for both Windows and MacOS operating system. It is a raster graphics editor that's typically used for imaging and graphics design. It comprises of various shape tools such as ellipse, line, polygon, triangle, custom shape and rectangle.
Generally, the Rectangle tool is used to draw rectangle shape (vector and pixel-based) in Adobe Photoshop.
Can you think of other businesses that might benefit from using voice response this system?
Answer:
call centers benfit big in this field
Explanation:
Complete the steps for adding a recurring event.
1. Click
.
2. Then, choose
.
3. Enter the necessary details, and click
.
4. Specify the recurrence details.
Answer:
which type of questions is this
3. Why is human resource plan made
Answer: See explanation
Explanation:
Human Resource Planning refers to the process whereby the future human resource requirements of an organization is predicted and how the current human resources that the organization has can be used to fulfill the goals.
Human resources planning is made as it's useful helping an organization meet its future demands by supplying the organization with the appropriate people.
Human resource planning also allows organizations plan ahead in order to have a steady supply of effective and skilled employees. It also brings about efficient utilization of resources. Lastly, it leads to better productivity and organizational goals will be achieved.
Using only AND, OR and inverter gates to implement the above Boolean equation, how many gates are needed
Answer: hello your question has some missing data attached below is the missing data
answer : 10 gates
Explanation:
Logic diagram Using only AND, OR and inverter gates
x = A ⊕ B ⊕ C
attached below is the require Logic diagram Using only AND, OR and inverter gates .
number of inputs > 2
number of gates needed = 10
1 convert (101011)2 ( )10 ? convert(596)10= ( )16 ? convert( 101011101)2 ( )16 ? convert(37)10= ( )2 ?
(a) convert (101011)₂ = ( )₁₀ ?
(b) convert(596)₁₀= ( )₁₆ ?
(c) convert( 101011101)₂ = ( )₁₆ ?
(d) convert(37)₁₀= ( )₂ ?
Answer:(a) (101011)₂ = ( 43)₁₀
(b) (596)₁₀= ( 254)₁₆
(c) ( 101011101)₂ = ( 15D)₁₆
(d) (37)₁₀= ( 100101)₂
Explanation:(a) convert (101011)₂ = ( )₁₀
This means that (101011)₂ be converted to base 10 (decimal).
To convert from binary to decimal, find the sum of the binary digits times their power of 2. i.e
(101011)₂ = 1 x 2⁵ + 0 x 2⁴ + 1 x 2³ + 0 x 2² + 1 x 2¹ + 1 x 2⁰
(101011)₂ = 1 x 32 + 0 x 16 + 1 x 8 + 0 x 4 + 1 x 2 + 1 x 1
(101011)₂ = 32 + 0 + 8 + 0 + 2 + 1
(101011)₂ = 43₁₀
Therefore, (101011)₂ = ( 43)₁₀
(b) convert(596)₁₀= ( )₁₆
This means that (596)₁₀ be converted to base 16 (hexadecimal).
To convert from decimal to hexadecimal,
i. start by dividing the decimal number by 16 taking note of the result and the remainder.
ii. divide the result obtained in (i) by 16 and take note of the new result and the remainder.
iii. repeat steps i and ii until the result is 0.
iv. the result is a combination of the remainders starting from the last.
16 | 596
16 | 37 r 4
16 | 2 r 5
| 0 r 2
Now combine the remainders starting from the bottom up. i.e
254₁₆
Therefore, (596)₁₀= ( 254)₁₆
(c) convert ( 101011101)₂ = ( )₁₆
This means that (101011101)₂ be converted to base 16 (hexadecimal).
To convert from binary to hexadecimal,
i. starting from the rightmost bit, group the binary digits into a group of 4 bits as follows
101011101 => 1 0101 1101
ii. the group that does not contain 4 bits is padded with 0s
101011101 => 0001 0101 1101
iii. using the hexadecimal table, convert each group to hexadecimal as follows.
0001 = 1
0101 = 5
1101 = D
iv. combine the result
15D
Therefore, ( 101011101)₂ = ( 15D)₁₆
(d) convert(37)₁₀= ( )₂
This means that (37)₁₀ be converted to base 2 (binary).
To convert from decimal to binary,
i. start by dividing the decimal number by 2 taking note of the result and the remainder.
ii. divide the result obtained in (i) by 2 and take note of the new result and the remainder.
iii. repeat steps i and ii until the result is 0.
iv. the result is a combination of the remainders starting from the last.
2 | 37
2 | 18 r 1
2 | 9 r 0
2 | 4 r 1
2 | 2 r 0
2 | 1 r 0
| 0 r 1
Now combine the remainders starting from the bottom up. i.e
100101₂
Therefore, (37)₁₀= ( 100101)₂
Implement a class named MyArrayList that extends class the java.util. ArrayList. The class MyArrayList overrides the add(obj) method in the following way: it adds obj into the list if the object does not occur in the list or it occurs in the list only once; otherwise, if the object occurs in the list more than once, then the method does nothing.
Answer:
import java.util.ArrayList;
import java.util.Collections;
public class MyArrayList<T> extends ArrayList<T> {
public boolean add(T obj) {
if (Collections.frequency(this, obj) < 2) {
return super.add(obj);
}
return false;
}
}
Explanation:
According to the requirement, an element with the same value can occur at most twice in the list.
The Collections.frequency utility is useful to count the occurrances.
Sure, here's an implementation of the `MyArrayList` class that extends `java.util.ArrayList` and overrides the `add` method as described:
```java
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Map;
public class MyArrayList<E> extends ArrayList<E> {
"ATTHERATE"Override
public boolean add(E obj) {
// Count occurrences of each element in the list
Map<E, Integer> countMap = new HashMap<>();
for (E element : this) {
countMap.put(element, countMap.getOrDefault(element, 0) + 1);
}
// Check if obj occurs in the list only once or not at all
if (!countMap.containsKey(obj) || countMap.get(obj) == 1) {
return super.add(obj);
}
// If obj occurs more than once, do nothing
return false;
}
}
```
In this implementation, the `add` method first counts the occurrences of each element in the list using a `HashMap`.
Then, it checks whether the given object `obj` occurs only once or not at all in the list. If so, it adds the object to the list using the `super.add(obj)` call.
If `obj` occurs more than once, the method does nothing by returning `false`. This way, the `MyArrayList` class ensures that duplicates are added only once, or not at all, as required.
Know more about java:
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Accenture is helping a large retailer transform their online sales and services. The Data Analyst audits the client’s customer journey and maps out the kind of data they need to collect at each touch point. How does this help the client achieve their objectives?
Answer:
d. by increasing their customer knowledge and leveraging that information to improve customer experience
Explanation:
Consumers are at the heart of all businesses as they are the ones who our product are targeted. They purchase these goods and the company makes profit. Therefore, it is paramount for businesses to identify their target consumers in other to understand their preference and serve them accordingly. With data analytics, a consumers purchase history, likes and viewed products may be used to improve relationship between consumers and service providers. Once a consumer's preference is anlysed using data, then this is leveraged to improve the kind of service offered to such consumer leasing to better consumer experience.
The way in which the auditing of the client’s customer journey and mapping out the kind of data they need to collect at each touch point helps the client achieve their objectives is;
A: by updating their sales platform and adding new features
The missing options are;
A. by updating their sales platform and adding new features
B. by shifting the focus away from the customer and towards new products or services
C. by identifying products that are poor sellers and removing them from the inventory
D. by increasing their customer knowledge and leveraging that information to improve customer experience.
Looking at the given options, the one that is correct is Option A. This is because the company will by that medium, introduce new features that would be very useful in making the sales platform to be more efficient.
Now, Accenture is a company that does consultancy services by providing digital solutions to companies to help them to optimize their business operations. Thus, their different tools will help to give this their client an extra edge that will give them a good advantage over their competitors.
Read more about Accenture at; https://brainly.com/question/25702705
Produce a program using a loop that requests for 8 floating point numbers from a user.once provided the program should calculate the average of all numbers that are less than 10.5
Answer:
The program in Python is as follows:
total = 0
count = 0
for i in range(8):
num = float(input())
if num < 10.5:
total+=num
count+=1
print("Average: ",total/count)
Explanation:
This initializes the total to 0
total = 0
This initializes the count to 0
count = 0
This loop is executed 8 times
for i in range(8):
This request for float number
num = float(input())
If input is less than 10.5
if num < 10.5:
The sum is taken
total+=num
And count is incremented by 1
count+=1
The loop ends here
This calculates and prints the average
print("Average: ",total/count)
write a java program to input the corresponding data to print the result of the following expression
y=ax²+bx+c
Answer:
The program in Java is as follows:
import java.util.Scanner;
public class Main{
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
float a, b, c, x, y;
a = input.nextFloat();
b = input.nextFloat();
c = input.nextFloat();
x = input.nextFloat();
y = a * x * x + b * x + c;
System.out.print(y); }}
Explanation:
This declares all variables
float a, b, c, x, y;
The next 4 lines get input for a, b, c and x
a = input.nextFloat();
b = input.nextFloat();
c = input.nextFloat();
x = input.nextFloat();
This calculates the value of y using [tex]y = ax^2 + bx + c[/tex]
[tex]y = a * x * x + b * x + c;[/tex]
This prints the calculated value of y
System.out.print(y);
I need solutions to below questions with python code:
Write a program, my_family.py For Loop A program, work-list.pyList
1. that contains a Tuple holding the names of friends or family members. Then use a For Loop to read and print the names.
2. that contains a of six integers. Use a list method to add one more integer. Use a list method to sort the list. Use a While Loop to print the entries.
Answer:
1) my_family.py
family = ('Dad', 'Mom', 'Agnes', 'David', 'Chris', 'Millie')
for name in range(len(family)):
print(family[name])
2) work_list.py
my_number = [2, 6, 3, 1, 8, 4]
# add items at the end of the list.
my_number.append(0)
my_number.append(5)
# sorts the list, default - ascending.
my_number.sort()
size = 0
while size < len(my_number):
print(my_number[size])
size += 1
Explanation:
The tuple and list data structures are ordered, using indexes to locate items in its container.
The family.py file uses the for-loop to iterate and print the family names in the tuple.
The work-list.py file contains a list of integers which is modified by adding items at the end of the list with the append method and a prints all the items using a while-loop.
What are the main dimensions of information system and their components
Answer:
The dimensions of information systems include organizations, management, and information technology. The key elements of an organization are its people, structure, business processes, politics, and culture. An organization coordinates work through a structured hierarchy and formal standard operating procedures.