Relations in 3NF are as follows:
Speciality(SpecID,Description)Physician(PhysID,Name,SpecID,HospID)Hospital(HospID,Name,Address)Patient(PatientID,FirstName,LastName,Phone,PhysID)Treatment(TreatCode,Description,Price)PatientTreatment(PatientID,TreatCode)Here underlined are primary keys and italicized are foreign keys.
What is foreign keys?Foreign keys help define the relationship between tables, which is what puts the "relational" in "relational database." They enable database developers to preserve referential integrity throughout their system. By reducing errors and speeding up any operation that pulls data from tables connected by indexed foreign keys, foreign keys also benefit end users.
Technically speaking, a foreign key is a constraint that guarantees that a value can be added to column_a only if the same value already exists in column_b and links a column in one table (table 1.column a) to a column in another table (table 2.column b).
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A disk contains a B blocks, F of which are free. A bitmap needs 1 bit for each block, both free and occupied. A linked list needs 2 integers for each free block to link together all free blocks. The bitmap and linked list occupy a dedicated portion of the disk. (a) Determine what fraction of blocks must be free such that the bitmap and the linked list occupy the same amount of disk space.
(b) Determine the same fraction as above when the linked-list method connects groups of adjacent blocks, rather than individual blocks. The average group size is 10 blocks. Each group needs 2 integers for the link and 1 integer to record the number of blocks in the group.
The parameter index is of integer data type that specifies the position or index of the element to be fetched from the Linked List.
Which of the following is not true about intellectual property?These are the creations of human intellect such as ideas and concepts which are legally protected. Certain examples of Intellectual property are patents, copyrights and trademark, and it does not include physical property of an intellectual. Hence the correct answer is D.Which of the following best describes intellectual property? It refers to the ownership of patents, copyrights, and trademarks.It can be repaired with disk utility / recovery algorithmsIn UNIX it can be done by scanningIn FAT file scan the FAT looking for free entriesWhen the crash happens, it is not a problem for UNIX and FAT file systemIt can be repaired with disk utility/recovery algorithms.The recovery algorithm is a list of all blocks in all files and takes a compliment as new free file.In UNIX scanning can be done at all I-nodes.In FAT file problem cannot occur because there is no free list .If there was any problem than it would have to be done to recover it to scan the FAT looking for free entries.a. Maximum size of file = 8.003 GB
a. Maximum size of file
= (6 * 2 KB) + (2048 * 2 KB) + (2048 * 2048 * 2 KB)
= 12kb + 4096 Kb + 8388608 kb
= 8392716 kb
8392716/1024 mb = 8196.01 MB
8196.01 /1024 GB= 8.003 GB
b. According to above calculation
For 8 GB 6 direct, 1 single and 1 double indirect block requires
so
for 32 GB
24 direct Block
4 single and 4 double indirect block requires
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Consider the following input:
This is the first line of text.
This is the second line of text.
Assuming you have a brand new Scanner object named scanner that was created to read from this text. Assume nothing has been read from the Scanner yet. If scanner.nextLine() is called, what will be returned?
This is the first line of text.
This is the first line of text, that will be returned.
A class called Scanner may be found in java. util package and is used to get input of primitive types like int, double, etc., as well as strings. Although it is the simplest method for reading input in a Java application, it is not very effective if you need an input method for situations where time is a factor, such as in competitive programming.
The preset object System. in, which represents the standard input stream, is typically passed when creating an object of the Scanner class. If we wish to read input from a file, we can give a thing of the class File.
The function to utilize is next XYZ to read numerical values of a particular data type XYZ ().
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Java uses to reference the current object.group of answer choicesA. thisB. thatC. thisObjectC. D. null
Java uses (a) this to reference the current object.
Define Java.
On billions of devices, including laptops, smartphones, gaming consoles, medical equipment, and many others, Java is an extremely popular object-oriented programming language and software platform. Primitive types and reference types are the two categories into which the Java types are split.
Java is a programming language with rules and syntax derived from C and C++. In addition to being a compact, dependable, portable, distributed, real-time operating system, Java has evolved into a high-level, class-based, object-oriented programming language with a focus on having as few implementation dependencies as feasible.
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Why is it necessary to develop the quality of being responsible? A. B. C. to nurture successful careers and set an example fo to impress your colleagues and seniors to achieve success at a faster rate O D. for effective time management
To nurture successful careers and responsibility is crucial because it gives people a sense of purpose and helps society as a whole develop resilience in the face of adversity.
Why is it important to develop responsibility?The capacity to act is what we call responsibility.Not unable to move because of nervousness, immobilized by dread, or delaying, hiding the issue.Being responsible entails being organized but not overly anxious. Planning is necessary, but not meticulous schemes in order to manage the unpredictable.Accepting uncertainty, knowing you'll control what you can, and letting go of what you can't are all components of responsibility.In order to be responsible, a reaction must be proportionate to the issue and flexible enough to accommodate new challenges.Responsible people respect others' rights, are dependable, keep their word, and care about the environment. All facets of our life - including athletics, providing opportunities for others to flourish, and making the right decisions - are infused with responsibility.Learn more about responsibility refer to :
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what condition should be used in this while loop to get karel to pick up all the tennis balls on the current location? while : take ball()
ballsPresent() condition should be used in this while loop to get karel to pick up all the tennis balls on the current location.
Code:
while (ballsPresent()) {
takeBall();
}
What is While Loop?
A loop is a series of instructions in computer programming that is repeatedly repeated until a specific condition is met. Typically, a process is performed, such as retrieving and changing data, and then a condition is checked, like whether a counter had also reached a predetermined number. If it hasn't, the next instruction inside the sequence is a command to return to the initial instruction in the series and repeat it. If the condition is met, the following instruction either "falls through" into the next sequential instruction as well as branches outside the loop. A loop is just a fundamental programming concept that is commonly used in program development.
An infinite loop is the one that does not have a working exit routine. As a result, the loop continues indefinitely until the operating system detects it and terminates the program with an error, or until another incident happens (such as having a program gets automatically terminate after a certain point of time).
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ssume that in your current path are the files: text.c newtext.c what command line creates a modified version of the source files by expanding macros?
The command line "tar files -cfv P1.tar" creates a modified version of the source files by expanding macros which contains all files in the files directory.
What is Macros?
A macro is an input sequence that is pre-programmed to mimic keystrokes or mouse movements. A macro is commonly used in spreadsheets and word processing applications such as MS Excel and MS Word to replace a repetitive series of keyboard and mouse actions.
A macro's file extension is commonly MAC.
Macros are also well-known among MMORPG (Massively Multiplayer Online Role-Playing Games) players and SEO (Search Engine Optimization) specialists. Macros are programming scripts used by developers to re-use code in the world of programming.
The term macro is an abbreviation for "macro-instruction" (long instruction).
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open source software products often have fewer bugs than their commercial counterparts because of the
OSS frequently has fewer flaws than its commercial counterparts since so many people have reviewed the code.
Popular open source projects are less likely to contain bugs and security flaws than commercial closed source software. Popular open-source software projects are more likely to patch flaws and vulnerabilities quickly than proprietary software. There are no guarantees or legal duties attached to the security of open-source software, and there may be a dearth of community support explaining how to deploy it securely. Since software engineers aren't often professionals in security, they might not know how to put best practices into effect.
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When walking in a group single file What should the person in the front do?.
When walking in a group single file, the thing that the person in the front should do is that the person need to have the gun as it will be or must pointed ahead but it should not be over the shoulder.
What is single file?The term single file is seen as a line of objects or persons that is only one broad.
Therefore, in regards to the above, The person in the lead should always point the gun forward and never over their shoulder. The firearm must be held at an angle by the person in the middle. The hunter in the back may aim the gun in either the front, side, or rear.
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with these systems, input and output devices are located outside the system unit.
a. Desktop systems
b. Personal digital assistants
c. Smartphones
d. Laptop computers
The systems, input and output devices are located outside the system unit is desktop systems.
What is desktop system?Peripherals are externally connected input and output devices to the computer. A keyboard, mouse, scanner, microphone, or game controller are examples of common input devices.
A desktop computer is a type of personal computer that is designed to sit on top of a standard office desk.
It houses the physical hardware that allows a computer to run and connects to input devices like the monitor, keyboard, and mouse with which users interact.
Thus, the correct option is a.
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a restaurant serves breakfast before 11 am, after which they serve lunch. which expression for xxx outputs the correct string for any time? variable time ranges from 0 to 23 (e.g., 13 means 1 pm). mealstring
The expression for xxx outputs that correct the string for any time is as follows:
(time<11) ? "Breakfast": "Lunch". What do you mean by the expression for xxx output?The expression for xxx output may determine the processing of output that may rely on the instruction given by a user to the computer with the help of a specific programming language.
According to the context of this question, each programming language has its own importance in the field of expressing facts and knowledge. It makes the work of the user easier and more efficient.
Therefore, The expression for xxx outputs that correct the string for any time is well described above.
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write a statement that toggles the value of onoffswitch. that is, if onoffswitch is false , its value is changed to true ; if onoffswitch is true , its value is changed to false . view keyboard shortcuts edit view insert format tools table 12pt paragraph
A lot of people discover that using an extra keyboard with Word keyboard shortcuts increases their productivity.
Keyboard shortcuts are a necessary substitute for using a mouse for people who have mobility or vision impairments since they can be more convenient than using a touchscreen. The text box labeled "Search" at the top of the app window may actually be called "Tell Me" depending on the version of Microsoft 365 we are running. Both provide a mostly comparable experience, however there are some different options and search results. We are utilizing an access key from a previous version of Microsoft 365, according to a message that appears. Use the whole key sequence if we are aware of it. Press Esc to use Key Tips if we are unsure of the sequence.
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TRUE/FALSE Assume N and hashCode are positive and N is an integer of power of 2, hashCode % N is the same as hashCode & (N - 1).
Assume N and hashCode are positive and N is an integer of power of 2, hashCode % N is the same as hashCode & (N - 1) is true.
What type of value is returned by the hashCode () method?HashCode(), in its simplest form, simply returns an integer value produced by a hashing algorithm. The hash code must match for objects that are the same (as determined by their equals()).They check hash values using the hashCode() function.If equals() is overridden, hashCode() need not be as well. If hashCode() is overridden, equals() does not need to be as well. No matter what object called hashCode(), it can always return the same result.The hashCode() method's declaration is provided below: hashCode() is a public function that is available to everyone (int value)To learn more about HashCode() refer to:
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How do I restart Outlook program?.
Simply shut down the Microsoft 365 programmes, like Word or Outlook, then start them up again to restart.
What is the meaning of restart?Important files and installed software are not deleted by just restarting the computer. Something that has been interrupted or halted can start to happen or function again if it is restarted.
It's actually very easy to restart the phone because doing so clears up all of the data stored in RAM. All leftovers from shut down apps are deleted, and all open apps are terminated. RAM is essentially "cleaned" when the phone reboots, thus everything is reset.
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A user calls to report that she is experiencing intermittent problems while accessing the wireless network form her laptop computer. She can access the network from her usual office, but today, she is trying to access the wireless network from a conference room, Which is across the the hall and next to the elevator.
Which of the following is the MOST likely cause of her connectivity problem?
Interference is affecting the wireless signal
The elevator can cause interference with the wireless network signal due to the metal structure and electrical components inside the elevator.
Interference from ElevatorsElevators can cause interference with the wireless network signal due to their metal structure and electrical components.
The metal structure of the elevator can act as a barrier, blocking the signal and effectively cutting off her connection to the network. Additionally, the electrical components inside the elevator can generate a lot of noise, which can disrupt the signal and cause intermittent connectivity issues.Learn more about interference with the wireless network signal at: https://brainly.com/question/11879223
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____ allow ions to flow freely and quickly from one cell to another during depolarization, thus propagating the electrical signal from one cell to the next almost instantaneously
Gap junctions allow ions to flow freely and quickly from one cell to another during depolarization, thus propagating the electrical signal from one cell to the next almost instantaneously
The Role of Gap Junctions in Rapid Electrical Signal PropagationGap junctions permit the direct transfer of ions and small molecules between adjacent cells. This allows ions to flow freely and quickly from one cell to another during depolarization, thus allowing the electrical signal to be propagated from one cell to the next almost instantaneously. Gap junctions are important for the rapid transmission of electrical signals in the nervous system, allowing the signals to travel quickly without any delay.
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1. Draw the binary search tree which results from inserting the following numbers, one after the other, from left to right:
10,2,7,6,12,3,1,8,11
. 2. Show the resulting binary search tree after deleting 12. Explain. 3. Show the resulting binary search tree after deleting 12 and 2. Explain. 4. Provide an insertion order for the same numbers, 10, 2, 7, 6, 12, 3, 1, 8,11, which will result in a tree with height of 3 . Draw the resulting tree.
A binary search tree arranges its elements in a specific order.
In a Binary search tree, the value of the left node must be less than the value of the parent node, and the value of the right node must be greater than the value of the parent node. This law is applicable recursively to the root's left and right subtrees.
Binary Search Tree Algorithm:
Search (root, item)
if (item = root → data) or (root = NULL)
return root
else if (item < root → data)
return Search(root → left, item)
else
return Search(root → right, item)
END if
Step 2 - END
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define a function getlength() that takes two parameters passed by reference. the function reads two integers from input as kilometers and meters in this order. the function does not return any value. ex: if the input is 25 800, then the output is: 25 kilometers and 800 meters
A getlength() function that accepts two reference-passed parameters.
#include<iostream>
using namespace std;
void GetLength(int &usrFeet,int &usrInches)
{
cin>>usrFeet>>usrInches;
}
int main()
{
int usrFeet;
int usrInches;
GetLength(usrFeet,usrInches);
cout<<usrFeet<<" feet and "<<usrInches<<" inches" <<endl;
return 0;
}
What is a parameter?The values that are passed to a function are designated by parameters. Three parameters might be required for a function, for instance, to add three numbers. There is a name for a function, and other places in a program can call it. A discussion is what results from that information being passed. Functions can typically have a number of parameters in today's programming languages.
Every function parameter has a type, an identifier, and a comma to indicate the break between each parameter and the next. A function's arguments are passed in via the parameters. Every parameter that a function receives when it is called by a program is a variable. The value of each of the resulting arguments is copied into its corresponding parameter in a process call pass by value.
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Fill in the blank: R Markdown notebooks can be converted into HTML, PDF, and Word documents, slide presentations, and FILL IN THE BLANK.
R Markdown notebooks can be converted into HTML, PDF, and Word documents, slide presentations, and dashboard.
What is HTML?HyperText Markup Language is what HTML stands for. It is a widely used markup language for creating web pages. Using HTML elements (the building blocks of a web page), such as tags and attributes, it enables the creation and structure of sections, paragraphs, and links.
HTML has numerous applications, including:
building a website. HTML code is used by developers to control how text, hyperlinks, and media files are displayed by browsers.
navigating the internet. HTML is widely used to embed hyperlinks, making it simple for users to navigate and insert links between relevant pages and websites.
web-based guidance. Similar to Microsoft Word, HTML enables the organization and formatting of documents.
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what happens in photoshop when you paste a larger resolution image into a smaller resolution document
Photoshop will automatically resize a picture when you paste it into a document with a lower resolution than the original to fit. To accommodate the lower resolution , the photo will be partially cropped or pixelated.
Resolution – what is it?
The number of unique pixels that can be displayed in each dimension depends on the screen resolution or display methods of a digital tv, computer monitor, or display device. That can be a confusing term, especially since projection displays that use fixed picture-element (pixel) arrays, flat-panel displays, including liquid-crystal displays, and cathode ray tubes (CRT) showcases, all regulate the shown resolution differently.
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8. in cell b13, create a formula using the vlookup function that looks up the value from cell a11 in the range a5:b7, returns the value in column 2, and specifies an exact match. copy the formula to cell e13.
The creation of the formula using the VLOOKUP function is used to look up a value in a particular column is as follows:
The VLOOKUP formula to enter cell B13 is VLOOKUP(A11, A5:B7,2,0). What is the VLOOKUP function?The VLOOKUP function may be defined as a type of built-in Excel function that may significantly help you look for a specified value by searching for it vertically across the sheet.
The syntax of a VLOOKUP function is as follows:
VLOOKUP(lookup_value, cell_range, column_index, [return_value]).where lookup_value represents the value to look up, cell_range represents the cells to check, column_index represents the column index, and [return_value] is an optional entry, and it represents the value that will be returned by the lookup function.
Therefore, The creation of the formula using the VLOOKUP function is used to look up a value in a particular column is well described above.
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assign a variable solveequation with a function expression that has three parameters (x, y, and z) and returns the result of evaluating the expression y 4 * z - x.
Below is the code for the given problem in which we created a method solveEquation, which returns the result of evaluating the expression.
Coding part:
function solveEquation(x, y,z) {
return z - y + x * 2;
}
solveEquation(2,4,5.5);
output:
5.5( 5.5-4+2*2)
What is Expression in Code?
Expressions in computer science are written by developers, interpreted by computers, and 'evaluated.'
The evaluation yields a result or return. Expressions in code include simple mathematical equations like 2 + 2. They are commonly referred to as arithmetic expressions.
Variables can be used in other types of numerical or arithmetic expressions to make them look like algebra equations. Furthermore, various data types such as characters, strings, integers, floating point numbers, and others can be acted on as constants or variables in expressions.
The operators and functions in an expression determine how the computer will act on the objects in the expression.
String expressions evaluate to character strings, and functions change the text and character strings to produce a different result.
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Question 1 computer 1 on network b, with ip address of 192. 168. 1. 233, wants to send a packet to computer 2, with ip address of 10. 1. 1. 205. On which network is computer 2?.
It is to be noted that Computer 2 with the IP address - 10.1.1.205 is on a Private Network.
What is a Private Network?A private network in Internet networking is a computer network that employs a private address space of IP addresses. These addresses are often used for local area networks in homes, offices, and businesses. Private IP address ranges are defined in both the IPv4 and IPv6 standards.
It should be mentioned that the IP address range 10.1.205.0 - 10.1.205.255 is owned by a Private network and is situated in a Private network.
An Internet Protocol address is a numerical identification, such as 192.0.2.1, that is linked to a computer network that communicates using the Internet Protocol. The primary functionalities of an IP address are network interface identification and location addressing.
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calculate the overall speedup of a system that spends 65% of its time on i/o with a disk upgrade that provides for 50% greater throughput.
Answer:
Explanation:
S = 1.28 or 28% speedup
a new class is proposed to collect information about a group of dvds. which of the following is the best structure for this class? group of answer choices have separate classes for a single dvd and the entire dvd collection. have one class to store information about a single dvd and just use an arraylist to store the collection. have one class to store information about the collection name and send information about the dvds as simple data (integers, strings, etc.) have one class to store information about dvds and the collection named dvdsinformation
Have one class to store information about dvds and the collection named dvdsinformation, is the best structure because it allows for efficient storage of data for both the individual dvds and the entire collection.
The Benefits of Having One Class for DVD Collection InformationWhen it comes to creating a class to store information about a group of DVDs, the best structure is to have one class to store information about both the individual DVDs and the entire collection.
This structure allows for efficient storage of data, as all the data related to the DVDs and the collection can be contained within one class. It also makes it easier to access and modify the data as needed, as the class holds all the necessary information in one place.Learn more about DVD Collection at: https://brainly.com/question/11407964
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the minimum wire bending space required at the top and bottom of a panelboard that has three 3/0 awg conductors connected to each busbar is
The minimum wire bending space required at the top and bottom of a panelboard that has three 3/0 awg conductors connected to each busbar is 8 inches.
What is wire bending space?A straight line drawn from the end of the lug or wire connection to the wall, obstacle, or obstruction must be used to measure the bending space at the terminals.
The conductor may not be bent to a radius that is less than 8 times the overall diameter for non-shielded conductors or 12 times the overall diameter for shielded or lead-covered conductors, either during installation or later.
Thus, it is 8 inches.
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structured programming and object-oriented programming (known as oop) are two popular approaches to programming design. discuss each design methodology including the differences between the two as well as why one methodology would be used over the other. when discussing structured programming, be sure to mention top-down and bottom-up design. when discussing oop, be sure to mention the purpose of objects and how they interact with one another.
Structured programming is a programming design methodology that focuses on breaking down a problem into smaller, more manageable pieces. It emphasizes the importance of using a top-down design approach, where the programmer divides the problem into smaller pieces and then solves each piece separately.
This approach allows the programmer to better understand the problem, which makes it easier to debug and troubleshoot the code. Structured programming also relies strongly on control structures such as conditionals and loops to create the desired flow of the program.
Object-oriented programming (OOP):Object-oriented programming (OOP) is a programming design methodology that focuses on the use of objects. Objects are a way of representing real-world entities and their properties and behavior.
An object is an entity that has a set of characteristics and behaviors that are associated with it. OOP emphasizes the concept of data abstraction, which is the process of representing essential features of an object without including the background details. This allows the programmer to create an efficient program by reusing objects and their associated behaviors. OOP also emphasizes the concept of code reusability, which is the ability to use the same code in different contexts.
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which of the following social reforms were adopted by european countries in the late nineteenth century in response to campaigns by socialists? -retirement pensions
-unemployment and accident insurance
-minimum wage laws
Retirement pensions, Unemployment and accident insurance, Minimum wage laws. The adoption of these social reforms in the late nineteenth century was a major victory for socialists, as it provided much-needed financial security for vulnerable populations.
Social reforms adopted by European countries in response to campaigns by socialistsMinimum wage lawsThese social reforms were adopted by European countries in the late nineteenth century in response to campaigns by socialists. Retirement pensions provided a source of income for elderly citizens, unemployment and accident insurance provided financial assistance to those who were unemployed or injured, and minimum wage laws ensured that workers were paid a fair wage for their labor.
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a class (classone) is considered to have a dependency on another class (classtwo) under which of the following conditions? group of answer choices classtwo uses objects of classone. classone uses objects of classtwo. classone and classtwo both use a third class classthree. the public interfaces of both classes are cohesive.
A class (classone) is considered to have a dependency on another class (classtwo) under ClassOne uses objects of ClassTwo.
What is dependency?
A dependence in the context of modern software development is extra code that a programmer wants to call. The process of conceiving, writing, testing, debugging, and maintaining a particular unit of code is avoided by adding a dependency.
A class is a template specification of the method(s) and variable(s) of a certain kind of object in object-oriented programming. As a result, an object is a particular instance of a class; instead of variables, it holds real values. One of the fundamental concepts of object-oriented programming is the class.
Minimizing class dependencies (also known as coupling) is a smart programming strategy since too many dependencies make managing an application program challenging. On the other hand, we argue that class coupling is low if there are few dependencies between them.
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which security protocol encrypts transmissions by iusing a shared secret key combined with an initializatrion vector
Wired Equivalent Privacy (WEP) encrypts transmissions by using a shared secret key combined with an initialization vector.
What is WEP Encryption Protocol?
The 802.11 MAC specification defined an encryption protocol called Wired Equivalent Privacy (WEP).
The initial data packet (P), which is utilized for communication when WEP is employed, is first checksummed (c). The data payload is then created by combining the checksum with the data.
A 24-bit random initialization vector is then created by the transmitting device (IV). The gadget employs the RC4 algorithm to encrypt the data (EK,IV(P,c)) using the shared key (K) and IV to produce the ciphertext data.
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_______programs provide a quick and easy way to search or examine an entire computer system to help you find specific applications, data, or other files.
Search programs let to quickly and easily search or inspect a whole computer system in order to locate certain applications, data, or other files.
What is the search programs?Users can use desktop search software to rapidly locate files, folders, or particular material saved on their PCs and certain associated programs with the help of search programs.
Search tools allow you to swiftly and simply search or investigate an entire computer system to find certain applications, data, or other files. The search tool allows users to search for digital objects in the collection using simple or complex search.
Therefore, it is search program.
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