Answer:
Referential integrity, is the condition with the rule that foreign key values are always valid, and it is founded on entity integrity. Entity integrity, makes certain, the condition that there is a unique non-null primary key for every entity. The parent key functions as the source of the unique identifier for a set of relationships of an entity in the referential constraint parent table, and defining the parent key is known as entity integrity
Explanation:
Answer the following questions in your own words on how you understand the lesson.
differentiate the following pairs of terms.
1.Save and Save As
2.Blank Document and Template
3. Existing File and Recently Open File
Answer:
Explanation:
1.Save and Save As
The main difference between Save and Save As is that Save helps to update the lastly preserved file with the latest content while Save As helps to store a new file or to store an existing file to a new location with the same name or a different name
2.Blank Document and Template
Templates in Panda Doc are used for generic content that you intend on using multiple times, while documents are used for specific information. In order to send a document, you must first create it from an existing template
3. Existing File and Recently Open File
Opens a file for writing and reading in binary mode. a: opens a file for appending new information to it . ... A new file is created if one with the same name doesn't exist
1,list all data from table customer, sale and product. 2,list Name and sex of all customer. 3,list all male customer. 4,list all male and female customer. 5,list the name and age of male customers. 6,list the name, price and color of the product.
Answer:
The SQL queries are as follows:
1. select * from customer
select * from sale
select * from product
2. select name, sex from customer
3. select * from customer where sex = 'male'
4. select name, age from customer where sex = 'male'
5. select name, price, color from product
Explanation:
Given
Tables: customer, sale, product
Required
Answer question 1 to 5
(1) All data in the given tables
To do this, we make use of the select clause to retrieve data from each of the table and * to select all data.
So, we have:
select * from customer --> This lists all data from customer table
select * from sale --> This lists all data from sale table
select * from product --> This lists all data from product table
(2) Selected details from customer table
In (1), we have:
select * from customer --> This lists all data from customer table
To retrieve selected details, we replace * with the field names.
So, we have:
select name, sex from customer
(3) Male customers
In (1), we have:
select * from customer --> This lists all data from customer table
To retrieve male customers, we introduce the where clause
So, we have:
select * from customer where sex = 'male'
(4) Name and age of male customers
In (3), we have:
select * from customer where sex = 'male'
To retrieve the name and age, we replace * with name and age. So, we have:
select name, age from customer where sex = 'male'
(5) Name, price and color of products
In (1), we have:
select * from product --> This lists all data from product table
To retrieve selected details, we replace * with the field names.
So, we have:
select name, price, color from product
You are moving to an area where DSL will be available in the next six months. Which method of internet connectivity should you implement until DSL is available if your existing connectivity needs are minimal
Answer:
Answer would be, PSTN (public switched telephone network)
when files on storage are scattered throughout different disks or different parts of a disk, what is it called
Answer:
File Fragmentation or Fragmented Files
A computer is assigned an IP address of 169.254.33.16. What can be said about the computer, based on the assigned address?
Group of answer choices.
A. It can communicate with networks inside a particular company with subnets.
B. It can communicate on the local network as well as on the Internet.
C. It has a public IP address that has been translated to a private IP address.
D. It cannot communicate outside its own network.
Answer:
D. It cannot communicate outside its own network.
Explanation:
Dynamic Host Configuration Protocol (DHCP) is a standard protocol that assigns IP address to users automatically from the DHCP server.
Basically, a DHCP server is designed to automatically assign internet protocol (IP) address to network devices connected to its network using a preconfigured DHCP pool and port number 67.
When a computer that is configured with DHCP cannot communicate or obtain an IP address from the DHCP server, the Windows operating system (OS) of the computer automatically assigns an IP address of 169.254.33.16, which typically limits the computer to only communicate within its network.
Generally, a computer cannot communicate outside its own network when it is assigned an IP address of 169.254.33.16.
4. What are the things that a computer literate understands?name them
[tex]{\blue{OII}}[/tex]
[tex]{\green{TUDO}}[/tex] [tex]{\red{BEM ?}}[/tex]
The activities that the computer scientist develops Data structuring, development and design. CG. Numerical analysis and development of algorithms. Database management. CG.
[tex]{\red{TCHAU }}[/tex]
❤❤
What is the purpose of "display:table"?
Answer:
Modern browsers use CSS to style all their markup.
How would they render a <table> element if CSS had nothing that could express the appearance of one?
(That, and you might have non-tabular data that you want to render like a table, there are enough people using tables for layout to see a demand for it).
They can be used to format content in a tabular manner when the markup does not use the table element, e.g. because the markup was written by someone who was told not use tables or because the markup is generic XML and not HTML.
You can also design a page using e.g. div elements so that some stylesheet formats them as a table, some other stylesheet lets them be block elements or turns them to inline elements. This may depend e.g. on the device width
what is the fullform of ETA in computer term
Answer:
Estimated Time of Arrival.
Communication media that use an antenna for transmitting data through air or water are called _____.
Answer:
Guided media provide a physical path along which the signals are propagated; these include twisted pair, coaxial cable and optical fiber. Unguided media employ an antenna for transmitting through air, vacuum or water. Traditionally, twisted pair has been the workhorse for communications of all sorts.
Explanation:
douc54.cs.edinboro.edu /~bennett/class/csci475/spring2002/notes/chapter4/index.html
copy and paste that it might help!
1. digital ink pen
a miniature electronic circuit or device that electricity flows through. The circuit is made of silicon. It may also be called a chip
2. Electronic Paper Display
a pocket-sized card that can store data and process information
3. integrated circuit
an automatic identification device that lets you store and retrieve information
4. radio transceiver
a device that captures handwritten notes and downloads it to the computer so that the text may be displayed on the monitor
5. RFID
display or sign with the ability to update the information electronically
6. smart card
an electronic device that uses an antenna to read and send information by way of a radio signal
Answer:
1. Integrated circuit.
2. Smart card.
3. RFID.
4. Digital ink pen.
5. Electronic Paper Display.
6. Radio transceiver
Explanation:
1. Integrated circuit: a miniature electronic circuit or device that electricity flows through. An integrated circuit (IC) is typically of a semiconductor element such as silicon. Also, it may be referred to as a chip.
2. Smart card: a pocket-sized card that can store data and process information. It's usually used in cable television decoder, transportation terminals, e-commerce services, etc.
3. RFID: an automatic identification device that lets you store and retrieve information. RFID is an acronym for radio frequency identification.
4. Digital ink pen: a device that captures handwritten notes and downloads it to the computer so that the text may be displayed on the monitor.
5. Electronic Paper Display: display or sign with the ability to update the information electronically.
6. Radio transceiver: an electronic device that uses an antenna to read and send information by way of a radio signal in the field of telecommunications.
Cuando se introduce una fórmula en una celda primero que hay que introducir es
Answer:
El signo =.
Explanation:
La pregunta refiere a las fórmulas que se utilizan en el programa Excel. Esta es una hoja de cálculo desarrollada por Microsoft para computadoras que utilizan el sistema operativo Windows. Es, con mucho, la hoja de cálculo más utilizada para estas plataformas. Microsoft Excel se utiliza como hoja de cálculo y para analizar datos, así como para crear una base para la toma de decisiones. En Excel, se pueden realizar cálculos, configurar tablas, crear informes y analizar volúmenes de datos.
Además, dentro de sus celdas existe la posibilidad de realizar fórmulas, que emulan las fórmulas matemáticas y realizan cálculos específicos entre distintas celdas.
You want to be able to identify the services running on a set of servers on your network. Which tool would best give you the information you need?
Answer:
Vulnerability scanner
You require a "vulnerability scanner" to provide you with the information to be able to identify the services running on a set of servers on your network.
What is a vulnerability scanner?Vulnerability scanning, commonly known informally as 'vuln scan,' is an automated technique for finding network, application, and security problems ahead of time. The IT department of a company or a third-party security service provider often does vulnerability scanning. Attackers use this scan to find points of access to your network.
A vulnerability scanner can provide features that a port scanner cannot: sending notifications when new systems are connected to the network.
If you want to be able to identify the services running on a set of servers on your network then you need a "vulnerability scanner" to equip you with the details.
To learn more about vulnerability scanners click here:
https://brainly.com/question/10097616
#SPJ12
como se llama el arte de pintar en las cuevas sus actividades de caceria
can I play the game the last of us with this spec:
i am doing 7th grade coding 3.02 assignment can anybody help me it says bad input on line 3 and this is what it is can someone help me
grade = int(input("What grade are you in?"))
Answer:
grade = int(input("What grade are you in?")
if grade == 9:
print ("Freshman")
elif grade == 10:
print ("Sophomore")
elif grade == 11:
print ("Junior")
elif grade == 12:
print ("Senior")
else:
print ("Invalid")
Explanation:
You fail to provide the complete code. So, I will rewrite the code from scratch
The complete question requires that the level is printed based on the input grade.
The code has been added in the answer section.
The explanation is as follows:
[Thus gets input for grade]
grade = int(input("What grade are you in?")
[If grade is 9, this prints Freshman]
if grade == 9:
print ("Freshman")
[If grade is 10, then level is sophomore]
elif grade == 10:
print ("Sophomore")
[If grade is 11, then grade is Junior]
elif grade == 11:
print ("Junior")
[If grade is 12, then level is senior]
elif grade == 12:
print ("Senior")
[All other inputs are invalid]
else:
print ("Invalid")
algo de La historia de los productos tecnologicos
Answer:
La tecnología se define como la suma de técnicas, habilidades, métodos y/o procesos utilizados y utilizados en la producción de bienes, productos o servicios, o para lograr objetivos clave de la investigación científica.
Precisamente, la tecnología se define como la aplicación del conocimiento científico con fines prácticos, especialmente en la producción industrial. Un significado secundario de la palabra se refiere al desarrollo de dispositivos y mecanismos con fines científicos y está directamente relacionado con las artes aplicadas, las ciencias aplicadas o la ingeniería. A veces se refiere a la metodología que caracteriza tal proceso. En los últimos años ha existido una tendencia a que el concepto se refiera únicamente a la alta tecnología y / o tecnología informática, aunque básicamente no se limita a estas áreas. Por ejemplo, tanto la Estación Espacial Internacional o una computadora pueden ser tecnología, también pueden ser un abridor de botellas estándar. A menudo, el objeto de la tecnología con beneficios prácticos no es el producto de la investigación científica, sino el resultado de un descubrimiento accidental.
You have a company network that is connected to the internet. You want all users to have internet access, but you need to protect your private network and users. You also need to make a web server publicly available to internet users.Which solution should you use?
Answer:
Explanation:
In this scenario, the best option is to first create a DMZ. This stands for Demiliatirized Zone and basically allows anything connected to it to access networks that have not been completely verified (which in this case would be the internet). Once the DMZ is created you are going to want to add the web server to the DMZ. This will allow the web server to access the internet and be publicly available to its users. At the same time you are going to want to add the company network behind the DMZ so that it is not allowed to publicly access the internet without the data going through the firewall first. Therefore, protecting the company network users.
A 2-dimensional 3x3 array of ints, has been created and assigned to tictactoe. Write an expression whose value is that of the middle element in the middle row.
Answer:
tictactoe[1][1]
Explanation:
To access arrays, square boxes might be used which means specifying the row position and column position of a certain value in an array ::
Given a 2 - dimensional 3×3 array of integers :
Creating a dummy array assigned to the variable tictactoe :
[1 2 3]
[4 5 6]
[7 8 9]
We have a 3×3 array, that is 3 rows and 3 columns.
The middle element in the middle row is located in the second row ;second colum
Row and column Indexes starts from 0
Middle element in the middle row is the value 5 and it corresponds to :
tictactoe[1][1]
We call the variable name and the we use one square box each to house the row and column position.
disadvantages of computer.
Answer:You cant carry it around like a phone
Explanation:
Write a basic notation for
[tex]a = \frac{(b + d)}{2c} [/tex]
[tex]z = \frac{x}{y + c} [/tex]
[tex] c = \frac{9c + 32}{5} [/tex]
Answer:
[tex]a = (b + c)/(2 * c)[/tex]
[tex]z = x/(y + c)[/tex]
[tex]c = (9 * c + 32)/5[/tex]
Explanation:
Required
The expression in basic
To do this, we use () to group items, / as divide and * to combine factors
So, we have:
[tex](a)\ a = \frac{(b + d)}{2c}[/tex]
In basic, it is:
[tex]a = (b + c)/(2 * c)[/tex]
[tex](b)\ z = \frac{x}{y + c}[/tex]
In basic, it is:
[tex]z = x/(y + c)[/tex]
[tex](c)\ c = \frac{9c + 32}{5}[/tex]
[tex]c = (9 * c + 32)/5[/tex]
plz help me to do 4 number
Answer:
A is an abbaccus. B is Blaze Pascal. C is The Jacquard Loom. D is Charles Babbage. E is The Manchester Baby.
Explanation:
what can be the maximum possible length of an identifier 3163 79 can be of any length
Answer:
79 characters
Explanation:
The programming language is not stated, but a little search online shows the question is about python programming language
Literally, identifiers are the names given to variables, arrays and functions.
In most programming languages (e.g. python), identifiers are case-sensitive.
i.e. Abc is a different identifier when compared to abc.
Having said that, python allows up to 79 characters to name an identifier.
Meaning that, the length of a variable name (or array, or function, etc.) can be up to 79 characters, and it cannot exceed 79 characters.
Robyn needs to ensure that a command she frequently uses is added to the Quick Access toolbar. This command is not found in the available options under the More button for the Quick Access toolbar. What should Robyn do?
Answer:
Access Quick Access commands using the More button.
Explanation:
To ensure that a command she frequently uses is added to the Quick Access toolbar Robyn would need to "Access Quick Access commands using the More button."
To do this, Robyn would take the following steps:
1. Go / Click the "Customize the Quick Access Toolbar."
2. Then, from the available options, he would click on "More Commands."
3. From the "More Commands" list, click on "Commands Not in the Ribbon."
4. Check the desired command in the list, and then click the "Add" button.
5. In the case "Commands Not in the Ribbon" list, did not work out Robyn should select the "All commands."
The core difference between phishing and spear-phishing is: a. spear-phishing has more specific targets than phishing b. phishing attacks via email, spear-phishing attacks via infected webpages c. phishing attacks via email, spear-phishing attacks via social media d. phishing is an outside attack; spear-phishing is an internal security check e. anti-virus software prevents phishing but not spear-phishing
Answer:
a. spear-phishing has more specific targets than phishing
Explanation:
The difference between phishing and spear-phishing basically lies in the target. Phishing is a form of malicious software sent to a large number of people, probably through their e-mails, with the hope that a small percentage will fall victim to the attack.
Spear-phishing, on the other hand, is targeted at just one person. The person and his itinerary are studied and a message is designed to apply to that person and elicit his interest. Clicking on the message or link exposes the person's device to attack and unauthorized information might be obtained or malware is installed.
6. By default,how the table headings are placed. (2 Points)
bold and italic
bold and centered
bold and underlined
bold and aligned
Which type of attack cripples the network and prevents legitimate users from accessing network resources
Answer:
A Distributed Denial of Service (DDoS) attack is a non-intrusive internet attack made to take down the targeted website or slow it down by flooding the network, server or application with fake traffic. When against a vulnerable resource-intensive endpoint, even a tiny amount of traffic is enough for the attack to succeed.
Distributed Denial of Service (DDoS) attacks are threats that website owners must familiarize themselves with as they are a critical piece of the security landscape. Navigating the various types of DDoS attacks can be challenging and time consuming. To help you understand what a DDoS attack is and how to prevent it, we have written the following guidelines.
1
What is a DDoS attack?
1.1 – Understanding a DDoS Attack
The objective of a DDoS attack is to prevent legitimate users from accessing your website. For a DDoS attack to be successful, the attacker needs to send more requests than the victim server can handle. Another way successful attacks occur is when the attacker sends bogus requests.
1.2 – What is the Goal Behind a DDoS Attack?
The main goal of an attacker that is leveraging a Denial of Service (DoS) attack method is to disrupt a website availability:
The website can become slow to respond to legitimate requests.
The website can be disabled entirely, making it impossible for legitimate users to access it.
Your friend want to make a copy of your new game you bought the previous day .
Why should you prevent him from doing that?
Answer:
It is copyright infringement
Explanation:
Required
Why you should prevent your friend from copying a software you bought
When you purchase a software, you claim ownership of the software (for using the software on your devices); however, your ownership is not a full ownership because the software is an intellectual property of the developer.
This means that, you cannot copy or redistribute the software without the consent of the developer. Doing so, without getting consent, is a copyright infringement.
An item that contains both data and the procedures that read and manipulate it is called a(n) ________.
Answer:
Object
Explanation:
An item that contains both data and the procedures that read and manipulate it is called an object.
Write code using the range function to add up the series 3, 6, 9, 12, 15, ..... 66 and print the resulting sum. Expected Output 759
Answer:
The program is as follows:
total = 0
for i in range(3,67,3):
total += i
print(total)
Explanation:
This initializes the sum of the series to 0
total = 0
This iterates through the series with an increment of 3
for i in range(3,67,3):
Add up all elements of the series
total += i
Print the calculated sum
print(total)
Adobe gives away the Acrobat Reader to build a market for the sale of software that creates Acrobat files. This is an example of:
Group of answer choices.
A. firms giving away products for half of a two-sided market to seed the market.
B. one market attempting to conquer a new market by making it a subset, component, or feature of its primary offering.
C. firms spreading costs across increasing units of production or in serving multiple customers.
D. firms taking advantage of complementary products developed for a prior generation of technology.
E. markets, once considered distinctly separate, beginning to offer similar features and capabilities.
Answer:
A. firms giving away products for half of a two-sided market to seed the market.
Explanation:
A software can be defined as a set of executable instructions (codes) or collection of data that is used typically to instruct a computer on how to perform a specific task and solve a particular problem.
Simply stated, it's a computer program or application that comprises of sets of code for performing specific tasks on the system.
Basically, softwares are categorized into two (2) main categories and these are;
I. Open-source software.
II. Proprietary software.
An open-source software is a type of software in which end users are granted the permission to use, study, modify, copy and share the software with its source code anyhow.
In this scenario, Adobe giving away the Acrobat Reader to build market for the sale of software that creates Acrobat files. Thus, this is an example of firms giving away products for half of a two-sided market to seed the market.
