Answer:
C
Explanation:
The statements about the relationship between hardware and software that is true is: D. Software consists of instructions that tell the hardware what to do.
A hardware can be defined as the physical components of an information technology (IT) system that can be seen and touched such as:
RouterSwitchKeyboardMonitorMouseConversely, a software refer to a set of executable codes (instructions) that is primarily used to instruct a computer hardware on how it should process data, perform a specific task or solve a particular problem.
In conclusion, a software consist of a set of executable codes (instructions) that tell a computer hardware what to do.
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explain about primary memory?
Answer:
Primary memory is computer memory that a processor or computer accesses first or directly. It allows a processor to access running execution applications and services that are temporarily stored in a specific memory location. Primary memory is also known as primary storage or main memory.
Explanation:
NO LINKS
Write a C++ program to accept a 5 digit integer and to validate the input based on the following rules.
Rules
1) The input number is divisible by 2. 2) The sum of the first two digits is less than last two digits. if the input number satisfies all the rules, the system prints valid and invalid, otherwise,
Example 1:
Enter a value: 11222
Output: Input number is valid
Example 2:
Enter a value: 1234
Output: Input number is invalid
Answer:
#include <iostream>
#include <string>
#include <regex>
using namespace std;
int main()
{
cout << "Enter a 5-digit number: ";
string number;
cin >> number;
bool valid = regex_search(number, regex("^\\d{4}[02468]$"));
if (valid) {
valid = stoi(number.substr(0, 1)) + stoi(number.substr(1, 1))
< stoi(number.substr(3, 1)) + stoi(number.substr(4, 1));
}
cout << number << (valid ? " is valid" : " is invalid");
}
Explanation:
Regular expressions can do all of your checking except for the sum of digits check. The checks are i.m.o. easiest if you don't treat the input as a number, but as a string with digits in it.
The regex means:
^ start of string
\d{4} exactly 4 digits
[02468] one of 0, 2, 4, 6 or 8 (this is what makes it even)
$ end of string
Given the declaration: char a[] = "Hello"; char *p = a, *q; what operations are valid syntactically? Select all that apply. Group of answer choices q = &&a[0]; q = &&a; *q = *(&a[0]); q = &(*p);
Answer:
The valid operations are:
*q = *(&a[0]); and q = &(*p);
Explanation:
Given
The above declarations
Required
The valid operations
*q = *(&a[0]); and q = &(*p); are valid assignment operations.
However, q = &&a[0]; q = &&a; are invalid because:
The assignment operations intend to implicitly cast the char array a to pointer q. C++ does not allow such operation.
Hence, *q = *(&a[0]); and q = &(*p); are valid
Another way to know the valid operations is to run the program and look out for the syntax errors thrown by the C++ compiler
how can you explain that algorithm and flowchart are problem solving tools?
Answer:
Algorithm and flowchart are the powerful tools for learning programming. An algorithm is a step-by-step analysis of the process, while a flowchart explains the steps of a program in a graphical way. Algorithm and flowcharts helps to clarify all the steps for solving the problem.
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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why absolute reference is used in spreadsheet
Absolute reference is used especially to keep the value or content of a column or row constant.
Explanation:Cell referencing is one common and important concept in spreadsheets. A cell reference or cell address is a value, mostly alphanumeric, used to identify a specific cell or cell range in a worksheet.
In spreadsheets such as that of Microsoft - excel - there are basically two types of referencing.
i. relative referencing
ii. absolute referencing
iii. mixed referencing
Relative reference is the default cell reference. When a relative reference is copied and pasted across multiple cells, it changes depending on its relative position. This type of reference is especially useful when there is a need to apply same formula across multiple rows or columns.
Absolute reference, on the other hand, will not change even though it is copied across multiple cells. It is used especially to keep the value or content of a column or row constant.
Mixed reference is a hybrid of the relative and absolute references.
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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Selecting missing puppies 1 # Select the dogs where Age is greater than 2 2 greater_than_2 = mpr [mpr. Age > 2] 3 print(greater_than_2) Let's return to our DataFrame of missing puppies, which is loaded as mpr. Let's select a few different rows to learn more about the other missing dogs. 5 # Select the dogs whose Status is equal to Still Missing 6 still_missing = mpr[mpr. Status == 'Still Missing'] 7 print (still_missing) Instructions 100 XP • Select the dogs where Age is greater than 2. 9 # Select all dogs whose Dog Breed is not equal to Poodle 10 not-poodle = mpr [mpr.Dog Breed != 'Poodle'] 11 print(not_poodle) • Select the dogs whose Status is equal to Still Missing. • Select all dogs whose Dog Breed is not equal to Poodle. Run Code Submit Answer * Take Hint (-30 XP) IPython Shell Slides Incorrect Submission Did you correctly define the variable not_poodle ? Expected something different. # Select all dogs whose Dog Breed is not equal to Poodle not_poodle = mpr[mpr.Dog Breed != 'Poodle'] print(not_poodle) File "", line 10 not_poodle = mpr [mpr.Dog Breed != 'Poodle'] Did you find this feedback helpful? ✓ Yes x No SyntaxError: invalid syntax
Answer:
# the dog dataframe has been loaded as mpr
# select the dogs where Age is greater than 2
greater_than_2 = mpr [mpr. age > 2]
print(greater_than_2)
# select the dogs whose status is equal to 'still missing'
still_missing = mpr[mpr. status == 'Still Missing']
print(still_missing)
# select all dogs whose dog breed is not equal to Poodle
not_poodle = mpr [mpr.breed != 'Poodle']
print(not_poodle)
Explanation:
The pandas dataframe is a tabular data structure that holds data in rows and columns like a spreadsheet. It is used for statistical data analysis and visualization.
The three program statements above use python conditional statements and operators to retrieve rows matching a given value or condition.
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.
In the early days of computer technology, which system was justified because data-processing personnel were in short supply, hardware and software were expensive, and only large organizations could afford computers
Answer:
Centralized Processing
Explanation:
Centralized processing was developed to process all of the data in a single computer, and since the first computers were stand-alone with all input and output devices in the same room, only the largest organizations could afford to use centralized processing.
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.
O 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
ANSWER IM TIMED
Answer: Most obvious spam messages will still reach the client computer
Explanation:
It should be noted that by default, usually the junk email filter is already set to No Automatic Filtering.
When a user configures No Automatic Filtering in Junk Mail Options, it should be noted that most obvious spam messages will still reach the client computer.
Therefore, the correct option is D.
The small flash memory used in
protable device like Laptop
Answer: flash drive
Explanation:
Flash drives are refered to as small, portable storage devices which makes use of a USB interface in order to be connected to a laptop.
Flash cards are removable and rewritable. They are mainly used to store data. Flash cards can be found in computers, laptops, digital cameras etc.
Write a method that accepts a string as an argument and checks it for proper capitalization and punctuation. The method should determine if the string begins with an uppercase letter and ends with a punctuation mark. The method should return true if the string meets the criteria; otherwise it should return false .
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
A wireless router is what kind of networking device?
Select one
a. End device
b. Intermediary device
c Peripheral Device
d. Connecting Device
Answer:
D, routers enable us to connect to the internet.
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.
C++Assign to maxSum the max of (numA, numB) PLUS the max of (numY, numZ). Use just one statement. Hint: Call FindMax() twice in an expression.#include using namespace std;double FindMax(double num1, double num2) { double maxVal; // Note: if-else statements need not be understood to complete this activity if (num1 > num2) { // if num1 is greater than num2, maxVal = num1; // then num1 is the maxVal. } else { // Otherwise, maxVal = num2; // num2 is the maxVal. } return maxVal;}int main() { double numA; double numB; double numY; double numZ; double maxSum; cin >> numA; cin >> numB; cin >> numY; cin >> numZ; /* Your solution goes here */ cout << "maxSum is: " << maxSum << endl; return 0;}
Answer:
Replace the comment with:
maxSum =FindMax(numA,numB)+FindMax(numY,numZ);
Explanation:
Required
The statement to add up the two maximum from the functions
To do this, we have to call FindMax for both arguments i.e.
FindMax(numA,numB) and FindMax(numY,numZ) respectively
Next, use the + sign to add up the returned value.
So, the complete statement is:
maxSum =FindMax(numA,numB)+FindMax(numY,numZ);
See attachment for complete program
High-level modulation is used: when the intelligence signal is added to the carrier at the last possible point before the transmitting antenna. in high-power applications such as standard radio broadcasting. when the transmitter must be made as power efficient as possible. all of the above.
Answer:
Option d (all of the above) is the correct answer.
Explanation:
Such High-level modulation has been provided whenever the manipulation or modification of intensity would be performed to something like a radio-frequency amplifier.Throughout the very last phase of transmitting, this then generates an AM waveform having relatively high speeds or velocity.Thus the above is the correct answer.
space bar in computer
Answer: Its the one in the middle the really long thingy it looks like a rectangle
Explanation:
ITS IN THE MIDDLE
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
1. Design pseudocode for a program that will permit a user to store exactly 75 numbers in an array. Create an array big enough to hold the numbers and store each number in the array as it's entered. Be sure to PROMPT the user for each number before it's entered. You do not need to initialize the array. HINTS: Make sure you use a named constant when you declare the array (the number inside the brackets should be a named constant that you declared before the array declaration.) Use a for loop (or while loop if you'd like) to get each number from the user. The module has an example of pseudocode very similar to this problem. You're free to use this pseudocode as you create your program. 2. Identify three advantages of arrays. For each advantage, write at least one complete sentence explaining why the advantage you listed is an advantage. More detail is better. You may use outside resources but be sure to CITE those resources using APA format.
Answer:
Question 1: The pseudocode is as follows:
int n = 70;
int intArray[n];
for(int i = 0; i< n; i++){
print("Input "+(i+1)+": ")
input intArray[i];
}
Question 2: Advantages of array
Indexing in arrays in easyIt can be used to store multiple values of the same typeIt can be used for 2 dimensional inputsExplanation:
Question 1
This declares and initializes the length of the array
int n = 70;
This declares the array
int intArray[n];
This iterates through the length of the array
for(int i = 0; i< n; i++){
This prompts the user for inputs
print("Input "+(i+1)+": ")
This gets input for each element of the array
input intArray[i];
}
Question 2
Indexing: Elements of the array can easily be accessed through the index of the element.
For instance, an element at index 2 of array intArray can be accessed using: intArray[2]
Multiple Values: This is illustrated in question 1 above where we used 1 array to collect input for 70 values.
2 dimensional inputs: Literally, this means that array can be used to represent matrices (that has rows and columns).
An illustration is:
intArray[2][2] = {[0,1],[3,5]}
The above array has 2 rows, 2 columns and 4 elements in total.
A Key Factor in Controlling Your Anger Is Using Passive behaviour.T/F
Answer:
The answer is "True".
Explanation:
Assertiveness means that others are encouraged to be open, honest about their thoughts, wishes and feelings so how they can act properly. Assertive behavior: be open and communicate wishes, ideas and feelings, as well as encourage others to do likewise. Please visit our Emotional Regulation page. A major aspect is the ability to control your anger. Once you are quiet or aggressive, work very hard.
Depending on your web browser, you may be able to locate a folder or a file on your machine that contains cookies. Look through the folder or open the file. List references to three websites you have visited.
Answer:
yourmom.com yourhaouse.com and mcdonalds.org
Explanation:
write short notes about monitor printer and speaker
Answer:
A computer monitor is an electronic device that shows pictures for computers. Monitors often look similar to televisions. The main difference between a monitor and a television is that a monitor does not have a television tuner to change channels. Monitors often have higher display resolution than televisions.
A printer is a device that accepts text and graphic output from a computer and transfers the information to paper, usually to standard size sheets of paper. Printers vary in size, speed, sophistication, and cost. In general, more expensive printers are used for higher-resolution color printing.
Speakers receive audio input from the computer's sound card and produce audio output in the form of sound waves. Most computer speakers are active speakers, meaning they have an internal amplifier which allows you to increase the volume, or amplitude, of the sound.
What are TWO examples of soft skills?
computer programming
o responsibility
certification
communication
troubleshooting
Use the drop-down menus to complete the steps for rearranging the layout of a form.
1. Open the form in
✔ Design
view.
2.
✔ Press Ctrl+A
to highlight all of the fields.
3. Under Form Design Tools, select the
✔ Arrange
tab.
4. Choose the Remove Layout button.
5. Reorder and arrange the layout as desired.
6. Review the changes in the
✔ Layout
view.
7. Click Save.
Just did it.
Answer:
1. Open the Form
2. Arrange tabs
3. Layout view
4. Reoder and arrange the Layout as desired
5. Press Ctrl + A
6. Choose the remove Layout button
7. Click Save
I am not sure
The complete steps for rearranging the layout of a form are in the order:
1, 2, 3, 4, 5, 6, and 7.What is a form layout?A form layout is the arrangement of all elements, components, and attributes of your form and the placement of the form on a specific page.
When rearranging the layout of the form, the steps to take are as follows:
Open the form in Design View (this means that the form needs adjustment and rearrangement.Press Ctrl+A (this control all function) helps to highlight all the features in the form layout fields.Under Form Design Tools, select the Arrange tab.Choose the Remove Layout button.Reorder and arrange the layout as desired.Review the changes in the Layout view.Click Save.Learn more about form layout arrangement here:
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loa (speaker) thuộc nhóm thiết bị nào ?
Answer:
this say's "Which device group?" hope i helpped
Create a method called letterGrade that will pass the student's average grade as a parameter and return a letter grade (char). Once passed, use an if..else if structure to determine whether the student has an A, B, C, D, or F. Return that letter grade. Use the standard grade scale: 90-100 (A), 80-89 (B), 70-79 (C), 60-69 (D), 0-59 (F).
Answer:
The method in Java is as follows:
public static char letterGrade(int average){
char grade =' ';
if(average>= 90 && average <=100){ grade ='A'; }
else if(average>= 80 && average <=89){ grade ='B'; }
else if(average>= 70 && average <=79){ grade ='C'; }
else if(average>= 60 && average <=69){ grade ='D'; }
else if(average>= 0 && average <=59){ grade ='F'; }
return grade;
}
Explanation:
This defines the method
public static char letterGrade(int average){
This initializes the grade to a blank
char grade =' ';
If average is between 90 and 100 (inclusive), grade is A
if(average>= 90 && average <=100){ grade ='A'; }
If average is between 80 and 89 (inclusive), grade is B
else if(average>= 80 && average <=89){ grade ='B'; }
If average is between 70 and 79 (inclusive), grade is C
else if(average>= 70 && average <=79){ grade ='C'; }
If average is between 60 and 69 (inclusive), grade is D
else if(average>= 60 && average <=69){ grade ='D'; }
If average is between 0 and 59 (inclusive), grade is F
else if(average>= 0 && average <=59){ grade ='F'; }
This returns the grade
return grade;
}
Walt needs to ensure that messages from a colleague in another organization are never incorrectly identified as spam.
What should he do?
O Configure a safe recipient.
O Configure a blocked sender.
O Configure a safe sender
O Do nothing.
Answer:
Configure a safe sender
Explanation:
The Safe Sender List in Outlook, is a list of domain names and email addresses that are not managed in the manner spam and junk messages are filtered out and placed in the spam or junk folder. The emails of contacts added to the Safe Senders list are always received in the inbox
Therefore, to ensure that messages from his colleague are never treated as spam, Walt should;
Configure a safe sender.
Assume a varible is declared in a block of code within a pair of curly braces. The scope of the variable ______ Group of answer choices starts from its declaration point and extends to the end of the block. starts from its declaration point and extends to the end of the entire program. covers the entire block, including the code before the declaration point. covers the entire program, including the code in the other blocks.
Answer:
The answer is the second choice that is "starts from its declaration point and extends to the end of the entire program".
Explanation:
In a functional component were specified variables of local scope, and those outside are defined of global scope. It shows that the local variables can be accessible within the specified function, whereas global variables can be accessed via all functions all through the code structure. The variable size is the code portion where the variable can be accessed.
go sub to VolleyBall_chan on y.o.u.t.u.b.e
Answer go to y o u t u b e type in volleyball_chan hit the sub button
Explanation: