Answer:
The answer is "True".
Explanation:
The key to a relational database that is unique for each data record is a primary key, also called a primary keyword.This unique identifier, including a driver's license name, telephone number, or vehicle identification number. This is an identifier (VIN).There must always be the only primary key in such a relational database.This is a specific relational database field (or column combination) that identifies each table entry in a unique way.It utilized it to swiftly analyze the data within the table as a unique identifier.Write a C program that will load entries from a file containing details of books and prints them.
Program Requirements:
a. Load file containing details of books
b. Print out all the books Required approach:
1. Design a struct/class that can hold the details of an individual book.
2. Dynamically allocate an array of these objects. The size should be the number of book entries from the input file given by the user.
3. Load all of the book entries into this array of objects before printing
Answer:
........
Explanation:
Consider a network that is a rooted tree, with the root as its source, the leaves as its sinks, and all the edges directed along the paths from the root to the leaves. Design an efficient algorithm for finding a maximum flow in such a network. What is the time efficiency of your algorithm
Answer:
please mark me brainlist
Explanation:
Kamal plans to offer new, more favorable contracts to business customers who are now receiving a discount and use wireless services. Determine whether each customer should receive a new contract as follows:
a. In cell 15, enter a formula using the AND function that tests whether the Wireless value is equal to "Y" and whether the Discount value is equal to "Y".
b. Fill the range 16:118 with the formula in cell 15.
Solution :
'AND" operation is a logical operation and is used in logical connective combining two statements and in truth tables.
Using AND operation verifies whether the outcome P and Q is true only when both the P as well as Q are true. If one of the P or Q is not true, then outcome result will be false.
In the context, Kamal wishes to offer a new and more favorable contracts to the business customers who use a wireless services and receive a discount.
Therefore, using the AND operation of the customers as :
Customer Wireless Discount Outcome
A N N FALSE
B Y N FALSE
C N Y FALSE
D Y Y TRUE
Explain the purpose of the open() and close() operations.
Answer:
The open() operation notifies the system that the named file is about to become active. The close() operation notifies the system that the named file is no longer in active use by the user who issued the close operation.
Chất xơ có nhiều trong thực phẩm nào?
Answer:
Quả lê Quả lê là một loại trái cây phổ biến vừa ngon vừa bổ dưỡng. ...
Quả dâu tây. Dâu tây là loại quả cực kỳ ngon. ...
Quả bơ Quả bơ khác hơn so với hầu hết các loại trái cây. ...
Quả táo. ...
Quả mâm xôi. ...
Quả chuối. ...
Cà rốt. ...
Củ cải đường.
Why are data silos problematic?
Answer:
Hampers collaboration
Resource wastage
Lack of data integrity
Explanation:
Data silos comes into play When different departments of an orgainiziations independently collects data needed for its operations. The finance, HR, administrative departments and so on collects their data and keeps it to themselves. As a result there is a repetitive and needless gathering and storage of already existing data, that is the data required by one group will have to be gathered again while it currently exists with another group. This leads to inefficient resource management and wastage. This practice also leads to data integrity as data stored differently across departments becomes inconsistent and less accurate over time. Team work and collaboration is gradually eroded as each group continues to hold on to its resources which poses a problem towards organizational growth.
e) Point out the errors( if any) and correct them:-
class simple
{
inta,b,c;
double sumNumber
{
int d = a + b + c;
double e = d/5.6;
return e;
}
void show Number()
{
a = 10, b = 20, c=5;
System.out.println(d);
double f = sumNumber(a,b,c);
System.out.print(e);
}
}
Explanation:
double e-d/5.6;is wrong it should return to c
Pick a web browser (a leading one or perhaps a lesser-known one that you use) and examine the Privacy and Security features and settings. These can usually be found in the settings/options area of the browser. Identify the web browser you are analyzing and answer the following questions/prompts:
1. List and explain/discuss the privacy and security features that the browser has to offer.
2. How do these privacy and security features protect individuals?
3. How do these privacy and security features affect what businesses can do on the Internet in terms of gathering customer data?
Solution :
Chrome web browser
The Chrome web browser uses a range of privacy and security settings for its customers. They include several security indicators as well as malware protection. Chrome uses the sandboxing technology, which prevents the harmful viruses and Trojans from reaching the computers.
Chrome provides a safe browsing by giving us an alert whenever we try to browse some harmful web sites. It also warns you if we use a username and password combination which has been compromised in any data leak.
Chrome also serves to protect the individuals :
It provides a features of Ad blocking.
When we want to browse safely without being recognized or without storing any credentials, Chrome provides an Incognito mode.
Many businesses can be done on the internet using Chrome platform that is safe and authenticate to gather and collect data and information.
Which one is the result of the output given by a computer
I
Explanation:
Instruction , data and information all of these.can somebody help what's wrong with this code
asap~
Answer:
There's a + missing to concatenate your variable to your string.
A good machine should have the mechanical advantage of......?
Answer:
The ideal mechanical advantage (IMA) of an inclined plane is the length of the incline divided by the vertical rise, the so-called run-to-rise ratio. The mechanical advantage increases as the slope of the incline decreases, but then the load will have to be moved a greater distance.
Explanation:
who is considered as the father of computer science?
Charles Babbage is known as father of computer science because he designed the original programmable computer .
I hope it helps and if you want to have good answer follow me, I will be your second sight on your any problems♥️♥️
Write the following numbers in binary. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 32. 46. 55. 61.
g Add a throw statement to the processNumbers function that throws the message "An element in the list is not a number." if one of the elements in toProcess is not a number. Hint: The function isNaN() returns true if the parameter is not a number.
Answer and Explanation:
function processNumbers(alist){
var Ourarray= new array(alist);
Ourarray.foreach(
if(isNaN()){
Console.log( "An element in the list is not a number."};
break;
}
}
processNumbers(alist)
From the above, we have defined a function that takes an array parameter(the following array variable will make sure of that). We test each element in the array using foreach array function. The for each function runs the if statement and if isNan is true for each of the elements in the array.
Chất xơ có nhiều trong thực phẩm nào?
Answer: rau củ quả đều có lượng chất xơ nhiều hơn so với các loại thực phẩn khác
Explanation:
Mary has been locked out of her account after failing to correctly enter her password three times. As the system administrator, you need to unlock her account. Which of the following commands would unlock Mary's account assuming that you are using pam_faillock.so module?
a. faillock --reset --user mary
b. pam_faillock --unlock --user mary
c. pam_faillock --reset --user mary
d. faillock --unlock --user mary
consider l= 5 ,r= 11. you must determine the sum of the values of the function in the range L to R . you have to calculate sum = lrf(x) in python coding
def summation (num1, num2):
i = 0
for x in range (num1 : num2 + 1):
i += x
return i
print ( summation(l, r))
What is the easiest way to deploy a C++ program to a user’s computer? a. Copy the source code to the user’s computer and then compile it b. Create a batch file that copies the program to the user’s computer and then run it c. Copy the executable file to the user’s computer d. Create an installer program and then run it on the user’s computer
Answer:
c. Copy the executable file to the user’s computer
Explanation:
When you run a c++ program, an executable file (.exe) is created in the same directory with the source file.
To deploy this program on another system, you need to transfer the executable file from the original system where the program was executed to the new system.
The program will work fine without errors.
However, do not mistake the executable file for the source file. The source file ends in .cpp.
Differentiate between TCP Reno and TCP Tahoe.
Answer:
They have different words
Explanation:
I hope it helps choose me the brainest
. Write programming code in C++ for school-based grading system
Explanation:
The grade must be calculated based on following pattern:
Average Mark RangeGrade91-100A181-90A271-80B161-70B251-60C141-50C233-40D21-32E10-20E2
Calculate Grade of Student in C++
To calculate grade of a student on the basis of total marks in C++ programming, you have to ask from user to enter marks obtained in 5 subjects. Now add marks of all the 5 subjects and divide it by 5 to get average mark. And based on this average mark, find grade as per the table given above:
// C++ Program to Find Grade of Student // -------codescracker.com------- #include<iostream> using namespace std; int main() { int i; float mark, sum=0, avg; cout<<"Enter Marks obtained in 5 Subjects: "; for(i=0; i<5; i++)
3. Which property is used to select full Row of data grid view
a) Select Mode b) Mode Selection c) Selection Mode d) Mode Select
Answer:
I think a is correct answer.
list two ways to insert a chart in powerpoint
Answer:
1st way: On the Insert tab, in the Illustrations group, click Chart. In the Insert Chart dialog box, click a chart, and then click OK.
2nd way: Click INSERT > Chart. Click the chart type and then double-click the chart you want.
What do you do if your computer dies/malfunctions? Reboot (Restart) Shut Down Recovery CD and Recover your system Call a person to fix it
Answer:
Restart
Explanation:
Simply I may restart my pc if it dies/malfunctions. I'll not restart immediately, I'll wait for an hour and do restart my computer. If it doesn't work then maybe I'll Call a person to fix it.
what is IBM 1401 used for? Write your opinion.
Explanation:
The 1401 was a “stored program computer,” allowing programmers to write (and share) applications loaded into the machine from punched cards or magnetic tape, all without the need to physically reconfigure the machine for each task.
Alexis received an email message from an unknown sender that included an attachment.
If she opens the attachment, what kind of malicious software might be activated, and what are the consequences?
Opening the attachment would release a worm, which would infect her system with a virus.
Opening the attachment would release a worm, which would infect her system with spyware.
Opening the attachment would release an active worm, which would infect her system with adware.
Opening the attachment would release a passive worm, which would infect her system with adware.
Answer:
Opening the attachment would release a worm, which would infect her system with a virus.
Answer: B. Opening the attachment would release a worm, which would infect her system with a virus.
3. Coaxial/telephone cable sends
during the data transmission
signal
Answer:
high frequency signal.
Write a program named lastname_firstname_cities.py that works with information about large cities. Your program will open the cities.txt downloadfile. Each line in the file has the name of a city, its country, and its population. The first few lines of the file look like this:
Answer and Explanation:
Open your text editor and open new file. Save new file file as lastname_firstname_cities.py. The program will open the file cities.txt downloadfile hence :
dfile= open(cities.txt, "r")
If we write this into our lastname_firstname_cities.py file it will open our cities.txt downloadfile in read mode and text mode(by default unless we specify binary mode which is for images)
Select the scenario that describes a top-down approach to data warehouse design.
Cathy’s Cards and Gifts, which has three stores, creates data marts for its sales, marketing, and delivery departments to study the possibility of establishing a new store.
Crawford's Fabrics, which wants to expand its operations, combines data from the purchasing and sales departments into a central database, to be divided into new data marts as needed.
Cynthia’s Florals, which is dealing with debt, creates new data marts for the service, delivery, and sales departments to develop a strategy to stay in business.
Connor’s Meat Market, which just opened, creates data marts to track the sale of each of the following meats: beef, pork, lamb, and fish.
Answer:
Crawford's Fabrics, which wants to expand its operations, combines data from the purchasing and sales departments into a central database, to be divided into new data marts as needed.
The scenario defines a top-down approach to data warehouse design as "Crawford's Fabrics, which wants to expand its operations, combines data from the purchasing and sales departments into a central database, to be divided into new data marts as needed".
What is a top-down approach to data warehouse design?In the "Top-Down" method system, a data warehouse exists defined as a subject-oriented, time-variant, non-volatile, and integrated data storage for the entire business data from various sources exist validated, reformatted, and saved in a normalized (up to 3NF) database as the data warehouse.
Therefore, the correct answer is option b) Crawford's Fabrics, which wants to expand its operations, combines data from the purchasing and sales departments into a central database, to be divided into new data marts as needed.
To learn more about warehouse design
https://brainly.com/question/25885061
#SPJ2
Instructions
Create a multimedia project that contains the text element and all the contents that you have studied about that element
Answer:
iiiio888887776558777u765
T
N
O
?
You can insert only the row
only to
True or false
false
Explanation:
good luck bro
have a great day
Answer:
false
Explanation:
