Answer:
When implementing a 1:1 relationship, the foreign key should be placed on the optional side if one side is mandatory and one side is optional.
When this is implemented, the foreign key should be made mandatory.
Explanation:
A foreign key (FK) is a primary key (PK) in relational databases. It is used to establish a relationship with a table that has the same attribute with another table in the database. A mandatory relationship exists when the foreign key depends on the parent (primary key) and cannot exist without the parent. A one-to-one relationship exists when one row in a data table may be linked with only one row in another data table.
now now now now mowewweedeeee
Answer:
15
Inside the type declaration, you specify the maximum length the entry can be. For branch, it would be 15.
I can't seem to type the full "vc(15)" phrase because brainly won't let me.
Many companies possess valuable information they want to guard closely (ex. new chip design, competition plans, legal documents). Personal computer hard disks these days are full of important photos, videos, and movies. As more and more information is stored in computer systems, the need to protect it is becoming increasingly important. Which of the following statements is incorrect with respect to Security?
a. security has many facets; three of the more important ones are: the nature of the threats, the nature of intruders, and cryptography
b. data integrity means that unauthorized users should not be able to modify any data without the owner's permission
c. a common category of intruders are driven by determined attempts to make money; for example: bank programmers attempting to steal from the bank they work for
d. in addition to threats caused by malicious users, data can be lost by accident; for example: rats gnawing backup tapes
Answer: D. in addition to threats caused by malicious users, data can be lost by accident; for example: rats gnawing backup tapes
Explanation:
Data security is essential to protecting unwanted people from having access to ones data, malicious attack should also be prevented and unusual behavior should be monitored.
Data security has many facets such as threat nature, the nature of intruders, and cryptography. Furthermore, data integrity means that unauthorized users should not be able to modify any data without the owner's permission. Also, the statement that a common category of intruders are driven by determined attempts to make money; for example: bank programmers attempting to steal from the bank they work for is correct.
It should be no noted that rats gnawing backup tapes cannot prevent data loss. Therefore, the correct option is D
A coin is tossed repeatedly, and a payoff of 2n dollars is made, where n is the number of the toss on which the first Head appears. So TTH pays $8, TH pays $4 and H pays $2. Write a program to simulate playing the game 10 times. Display the result of the tosses and the payoff. At the end, display the average payoff for the games played. A typical run would be:
Answer:
Explanation:
The following code is written in Java. It creates a loop within a loop that plays the game 10 times. As soon as the inner loop tosses a Heads (represented by 1) the inner loop breaks and the cost of that game is printed to the screen. A test case has been made and the output is shown in the attached image below.
import java.util.Random;
import java.util.Scanner;
class Brainly {
public static void main(String[] args) {
int count = 0;
int loopCount = 0;
while (loopCount < 10) {
while (true) {
Random rand = new Random();
int coinFlip = rand.nextInt(2);
count++;
if (coinFlip == 1) {
System.out.println("Cost: $" + 2*count);
count = 0;
break;
}
loopCount++;
}
}
}
}
A computer with a five-stage pipeline deals with conditional branches by stalling for the next three cycles after hitting one. How much does stalling hurt the performance if 20% of all instructions are conditional branches
Answer:
The stalling hurt the performance by 60%.
Explanation:
This can be calculated as follows:
Value of CPI ideally taken by pipeline = 1
From the question, we are given:
Stall frequency = 20%,
Number of frequency = 3
Therefore, we have:
Cycles per instruction (CPI) of the architecture = Value of CPI ideally taken by pipeline + (Stall frequency * Number of frequency) = 1 + (20% * 3) = 1.60
Amount by which the stalling hurt the performance = Cycles per instruction (CPI) of the architecture Value of CPI ideally taken by pipeline = 1 - 0.60 = 0.60, or 60%
Therefore, the stalling hurt the performance by 60%.
When computer users have trouble with their machines or software, Roland is the first person they call for help. Roland helps users with their problems, or refers them to a more-experienced IT employee. Roland holds the position of __________ in the organization. Support Analyst Systems Analyst Network Administrator Database Administator
Answer:
The correct answer is A) Support Analyst
Explanation:
From the question, we can see that Roland is familiar with both machines and software. He is familiar with the operations of both parts of a computer to the end that he can attempt a fix. And if he can't he knows who to refer the end-users to. Usually, some IT personnel that is more experienced.
From the above points, we can safely say that Roland is an IT Support Analyst. He cannot be the Systems analyst because Systems Analysts are usually at the top of the Pyramid. They take on problems that are referred upwards to them from support analysts.
Cheers
You have recently subscribed to an online data analytics magazine. You really enjoyed an article and want to share it in the discussion forum. Which of the following would be appropriate in a post?
A. Including an advertisement for how to subscribe to the data analytics magazine.
B. Checking your post for typos or grammatical errors.
C. Giving credit to the original author.
D. Including your own thoughts about the article.
Select All that apply
Answer:
These are the things that are would be appropriate in a post.
B. Checking your post for typos or grammatical errors.
C. Giving credit to the original author.
D. Including your own thoughts about the article.
Explanation:
The correct answer options B, C, and D" According to unofficial online or internet usage it is believed that sharing informative articles is a reasonable use of a website forum as much the credit goes back to the actual or original author. Also, it is believed that posts should be suitable for data analytics checked for typos and grammatical errors.
Select the correct statement(s) regarding 4B5B encoding.
a. 4B5B is used to map four codeword bits into a five bit data word
b. 4B5B information bit rate is 80% of the total (information plus overhead) bit rate
c. 4B5B information bit rate is 20% of the total (information plus overhead) bit rate
d. all statements are correct
Answer:
b. 4B5B information bit rate is 80% of the total information plus overhead bit rate.
Explanation:
4B5B bit rate encoding means there is 80% of the bit rate which included all the information plus the overheads. There is 20% of lack in bit rate due to encoding code words which converts data into smaller bits.
9.17 LAB: Acronyms An acronym is a word formed from the initial letters of words in a set phrase. Write a program whose input is a phrase and whose output is an acronym of the input. If a word begins with a lower case letter, don't include that letter in the acronym. Assume there will be at least one upper case letter in the input.
Answer:
Hence the code is given as follows,
import java.util.Scanner;
public class LabProgram {
public static String createAcronym(String userPhrase){
String result = "";
String splits[] = userPhrase.split(" ");
for(int i = 0;i<splits.length;i++){
if(splits[i].charAt(0)>='A' && splits[i].charAt(0)<='Z')
result += splits[i].charAt(0);
}
return result;
}
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
String s = scan.nextLine();
System.out.println(createAcronym(s));
}
}
Write an expression that evaluates to True if the string associated with s1 is greater than the string associated with s2
Answer:
Explanation:
The following code is written in Python. It is a function that takes two string parameters and compares the lengths of both strings. If the string in variable s1 is greater then the function returns True, otherwise the function returns False. A test case has been provided and the output can be seen in the attached image below.
def compareStrings(s1, s2):
if len(s1) > len(s2):
return True
else:
return False
print(compareStrings("Brainly", "Competition"))
Una persona decide comprar un número determinado de quintales de azúcar, ayúdele a presentar el precio de venta al público por libra, considerando un 25% de utilidad por cada quintal.
Database multiple-choice question don't bs pls
Which of the following is not a common factor for database management system selection?
a. Cost
b. Features and tools
c. Software requirements
d. Hardware requirements
e. All of the above
f. None of the above
(D and F are wrong)
Answer:
f. None of the above
Explanation:
Considering the available options, the right answer is option F "None of the above."
Common factors for database management system selection are the following:
1. Cost: various DBMS vendors have different pricing, hence, interested buyers will consider the price before selections
2. Features and Tools: different types of DBMS have varied features and tools in carrying out the work.
3. Software requirements: there are various software requirements in various DBMS, such as encryption support, scalability, application-level data recovery, etc.
4. Hardware requirement: various DBMS vendors have different hardware requirements to consider, such as sizeable RAM, CPU value, etc.
Hence, in this case, the correct answer is option F.
Factors to consider when buying a computer
Answer:
money
Explanation:
for working for socializing with orher
Write a Java code statement for each of following:
a) To declare TWO (2) decimal numbers, and ONE (1) whole number.
Answer:
double decimal1, decimal2;
int whole;
Explanation:
Required
Declare 2 decimals and 1 int.
The syntax to declare a variable is:
data-type variable-name;
To declare decimal, we simply make use of double or float data types.
So, we have:
double decimal1, decimal2; ----> for the decimal variables
And
int whole; ---- for the whole number
What is the future of marketing automation?
Answer:
give me number I will explain fast I am free now reply bro I am waiting
Answer:
To put it into simple words: the future of marketing automation is customers centric.
From data collection to lead generation, marketing automation will stay B2B marketers’ favorite in the future. Based on the current analytics, let’s have a look at how automation is driving lead generation today as well as what’s to come.
It’s going to be all about customersPersonalization will become even more importantMore Jobs and Activities Will Require Marketing AutomationGeneric Content Will Become Almost Non-ExistentMarketers Should Stay Current With Marketing Automation for Maximum ROIMarketing automation is a dynamic field and it will continue to evolve and transform processes in the future. If you in the marketing frontier, and looking to transform your lead generation processes, don’t be afraid to give marketing automation a shot.
To connect several computers together, one generally needs to be running a(n) ____ operating system
a. Network
b. Stand-alone
c. Embedded
d. Internet
Answer. Network
Explanation:
HELP ASAP PLZZZZZ
Question 35(Multiple Choice Worth 5 points)
(03.01 LC)
To write a letter to your grandma using Word Online, which document layout should you choose?
APA Style Paper
General Notes
New Blank Document
Table of Contents
Answer:
third one
Explanation:
To write a letter to your grandma using Word Online, you should choose the "New Blank Document" layout.
What is Word?Microsoft Word is a word processing application. It is part of the Microsoft Office productivity software suite, along with Excel, PowerPoint, Access, and Outlook.
To write a letter to your grandmother in Word Online, select the "New Blank Document" layout. This will open a blank page on which you can begin typing your letter.
The "APA Style Paper" layout is intended for academic papers and includes formatting guidelines and section headings that a personal letter may not require.
In Word Online, "General Notes" is not a document layout option.
The "Table of Contents" feature generates a table of contents based on the headings in your document, but it is not a document layout option.
Thus, the answer is "New Blank Document".
For more details regarding Microsoft word, visit:
https://brainly.com/question/26695071
#SPJ2
A retail department store is approximately square, 35 meters (100 feet) on each side. Each wall has two entrances equally spaced apart. Located at each entrance is a point-of-sale cash register. Suggest a local area network solution that interconnects all eight cash registers. Draw a diagram showing the room, the location of all cash registers, the wiring, the switches, and the server. What type of wiring would you suggest?
Answer:
The use of twisted pair cable ( category 5e/6 ) to connect the computers on each register and also the use of switches to connect each register to the server
Explanation:
The local area network ( LAN ) solution that will be used to interconnect all the POS registers is ; The use of twisted pair cable ( category 5e/6 ) to connect the computers on each register and also the use of switches to connect each register to the server .
This is because category 5e/6 twisted pair cable has a data rate transfer of up to 10 Mbps and it is best used for LAN connections
while The function of the three switches is to connect each cash register to the the central server been used .
attached below is a schematic representation
What variable(s) is/are used in stack to keep track the position where a new item to be inserted or an item to be deleted from the stack
Answer:
Hence the answer is top and peek.
Explanation:
In a stack, we insert and delete an item from the top of the stack. So we use variables top, peek to stay track of the position.
The insertion operation is understood as push and deletion operation is understood as entering stack.
Hence the answer is top and peek.
When rating ads, I should only consider my personal feelings on the ad.
Answer:
yes when rating ads you should only consider your personal feelings on the ad
Illustrate why Sally's slide meets or does not meet professional expectations?
Describe all the things Sally can improve on one of her slides?
Suggest some ways Sally can learn more PowerPoint skills.
The correct answer to this open question is the following.
Unfortunately, you did not provide any context or background about the situation of Sally and the problem with her slides. We do not know it, just you.
However, trying to be of help, we can comment on the following general terms.
When someone does not meet professional expectations, this means that this individual did not prepare her presentation, lacked technical skills, did not included proper sources, or missed the proper visual aids to make the presentation more attractive and dynamic.
What Sally can improve about her slides is the following.
She can design a better structure for the presentation to have more congruence.
Sally has to clearly establish the goal or goals for her presentation.
She has to add many visuals instead of plain text. This way she can better capture the interest of her audience.
If she can use more vivid colors instead of pale or dark ones, that would be best.
No paragraphs unless necessary. She better uses bullet points.
Take care of the tone of her voice. During her practice, she can record her vice to check how it sounds.
Can we update App Store in any apple device. (because my device is kinda old and if want to download the recent apps it aint showing them). So is it possible to update???
Please help
Answer:
For me yes i guess you can update an app store in any deviceI'm not sure×_× mello ×_×3. Most widely used structure for recording database modifications is called
A. Scheduling
B. Buffering
C. Log
D. Blocking
Answer:
C. log
Explanation:
The log is a sequence of log records, recording all the update activities in the database
hope this helps
Answer:
C. Log is the
answer
Explanation:
a sequence of log records recording all update activity in database
Preserving confidentiality, integrity, and availability is a restatement of the concern over interruption, interception, modification, and fabrication.
i. Briefly explain the 4 attacks: interruption, interception, modification, and fabrication.
ii. How do the first three security concepts relate to these four attacks
Answer and Explanation:
I and II answered
Interruption: interruption occurs when network is tampered with or communication between systems in a network is obstructed for illegitimate purposes.
Interception: interception occurs when data sent between systems is intercepted such that the message sent to another system is seen by an unauthorized user before it reaches destination. Interception violates confidentiality of a message.
Modification: modification occurs when data sent from a system to another system on the network is altered by an authorized user before it reaches it's destination. Modification attacks violate integrity, confidentiality and authenticity of a message.
Fabrication: fabrication occurs when an unauthorized user poses as a valid user and sends a fake message to a system in the network. Fabrication violates confidentiality, integrity and authenticity.
command create database in oracle database ::((
Answer:
kdkskskiisidiodoosooddodod
Select the true statement about network protocols.
A. Communication cannot take place unless the protocol is executed in the same way on all devices.
B. One function of a protocol is to decompress data when it is delivered to the receiving computer.
C. Using a protocol other than TCP/IP can result in data loss.
D. Computers that are distributed across a large geographic area need a special protocol to resolve errors.
The statement that is true about network protocols is that:
Using a protocol other than TCP/IP can result in data loss.What are network protocols?A network protocol is a system of principles that governs how data is delivered between devices on the same network.
Primarily, it enables linked devices to interact with one another despite variations in internal operations, architecture, or design.
The way this is done is true the use of Transmission-control protocol/Internet protocol (TCP/IP).
TCP/IP is the primary protocol or communication language of the Internet. Therefore, using a protocol other than TCP/IP can result in data loss.
Learn more about network protocol here:
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Use NAND operator to write; P or Q, and P -Q make an everyday implication sentence using only NAND
Answer:
Hence the answer is given as follows,
Explanation:
By using the NAND operator:-
P or Q and P -Q make an everyday implication sentence using the only NAND is given as,
information technology please help
Answer:
Read Technical Books. To improve your technical skills and knowledge, it's best to read technical books and journals. ...
Browse Online Tutorials. ...
Build-up online profile. ...
Learn new Tools. ...
Implement what you learned. ...
Enrich your skillset. ...
Try-out and Apply.
Jessica sees a search ad on her mobile phone for a restaurant. A button on the ad allows Jessica to click on the button and call the restaurant. This is a(n) Group of answer choices product listing ad (PLA) dynamic keyword insertion ad (DKI) click-to-call ad call-to-action ad (CTA)
It’s a click-to-call ad
How many ways are there to arrange the letters in the word ALGORITHMS? Note, the letter arrangement does not have to spell a word in the dictionary, but the new word must contain all the letters and each letter can be used only once.
there are ten letters in the word, so for the first position we can choose out of 10 option.
no matter wich specific option we choose, we will have 9 letters left for the 2nd letter.
and 8 for the third place.
...
when we will have used up 9 of 10 letters, there will be only one option for the last place.
the number of possible decision-paths is therefore given by this expression:
10*9*8*7*6*5*4*3*2*1
wich is 3,628,800
there are quite a few ways to rearrange 10 letters
The sorting method which commands entries in a going to head predicated on each character without regard to space as well as punctuation, therefore there are 3628800 ways.
The word 'ALGORITHMS' has 10 letters. There is no repeated letter so, the first Letter can hold 10 places if we start taking one letter at a time. The second can then hold nine positions, the third can hold eight, and so on.So, as [tex]\bold{ 10\times 9 \times 8.... \times 3 \times 2 \times 1 = 362,8800}[/tex] ways, we have such a total number of ways.
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Spending plans serve as a tool to analyze program execution, an indicator of potential problems, and a predictor of future program performance. True False
Answer:
True
Explanation:
Spending plans serve as a tool to analyze program execution, an indicator of potential problems, and a predictor of future program performance.
