To prevent users of the application from changing the size of the form. you must set the FormBorderStyle property to ____

Answer with Explanation:

Constraints are a very important feature in a relational model. Constraints are useful because they allow a designer to specify the semantics of data in the database. They are the rules that force Database Management Systems (DBMSs) to check that data satisfies the semantics.

Data integrity is the overall completeness, accuracy and consistency of data. This can be indicated by the absence of alteration between two instances or between two updates of a data record, meaning data is intact and unchanged

Referential integrity (RI) is a method for ensuring the “correctness” of data within a Database Management System. It embodies the integrity and usability of a relationship by establishing rules that govern that relationship.

Proper database RI ensures data integrity for both planned application programs and for queries in ad hoc SQL statements and BI tools.

By defining referential constraints, you can set up the database to control the semantic accuracy of the data it contains. To define a referential constraint, you must create a primary key in the parent table and a foreign key in the dependent table.

You must also define what actions are allowed when data is added or modified. This is accomplished with a set of rules applied to each relationship. The combination of the primary and foreign key columns and the rules that dictate the data that can be housed in those key columns can be defined to ensure correct and useful relational databases.

So, it is a good physical database design practice to implement referential integrity using database constraints.  

Answer:

The answer "False".

Explanation:

The related information on a web page, which does not enable you to understand the main topic but it includes related extra information, that leads to enhancing the client experience, is referred to as Supplementary Content. It is usually an important part of a web page but not necessary to obtain high or even average ratings for a blog, that's why the given statement is false.

Answer: FALSE

Explanation:-N-tier application architecture is a system by which developers can make flexible and reusable applications. By separating an application into tiers developers can easily modifying or add particular layer, instead of working on already existing application.

N-tier architectures can be classified into three tiers known as

PRESENTATION TIER(main function is to receive and transfer data to the logic tier and in turn recieve information from the logic tierand transfer to the user).

LOGIC TIER( it does all the calculations and through logic process data accordingly).

DATA TIER( information are stored and retrieved to the logic tier for processing and transfer). Generation of information happens in the third tier(Data tier).

Answer:

finalResult=(firstSample+secondSample)/3;  //coded inc++

Explanation:

The above code is executed in c++. As it involves basic arithmetic, so, if whole program has to be written,then they can be declared of type int,float or double as required and then the above statement must be used in which firstSample and secondSample has been added first and the result is divided by 3 to obtain the desired output.

Answer:

The main functionality verified by this test method command is user sharing record.

Explanation:

Generally, every apex code runs in system mode.

Apex is strong object-oriented programming language that allows the developers to execute flow and transaction control.

Using syntax which look like java and acts as databases, Apex allows the developer to add any type of business logics to an event which can include button, clicks records or visual pages.

Apex code can be initiated by web service request.  

The permissions and record sharing of current user are not consider by apex codes.

Now the system method runAs() will allow you to take or write a test method which will basically change the user context to an existing or an new user, so that the record sharing will take place.

runAs() command will not change or anything done with user permissions or permission levels, it will only record sharing of the user.  

When you use runAs() command the original and true context will run after the test method is once completed under the command of runAs().

The runAs() has no concern with the user license.  

If there is no or expired your personal or organization license you can just make a new user with this runAS() command.

In using this command we have to make a private class by the name of this test and then our further code to make a user , afterwards  which we will the true and original code of ours which we want to run.

There are many other uses of runAs() like  

 Mixed DML operations in test by opening the DML operations.

 We can also use it as a version which will take a package as a version argument. This will cause the code a specific version.

runAs(System.Version) is the command used for this.

Answer:

A Data Base Management System (DBMS)

Explanation:

Databases refer to organized data collection mostly stored and accessed by computers and other electronic systems/devices. In other to effectively store, retrieve, manipulate/change data items in a database, a software package called a Data Base Management System (DBMS) is required. This software allows the manipulation, retrieval and general management of the data in the database. popular examples of DBMS are MySQL and Microsoft SQL Server. Therefore in a client/server system as stated in the this question, each server will require a DBMS installed to allow interaction with users and other applications, in order to capture, store, and manage data.

C. Users are given access to the records accessible by the users who are below the role hierarchy.

The owner and system admin normally has the super user account, then they would assign roles and hierarchy to each department heads and members which roles and modules are lower type of user access compared to them.

Answer:

import java.util.Scanner;

public class CountVowelsModularized {

   public static void main(String[] args) {

       Scanner in = new Scanner (System.in);

//Prompt user to enter a string, receive it and assign to a variable        

System.out.println("Enter a string Value");

       String word =in.nextLine();

//Calling the method numVowels and passing the string

       System.out.println("The Number of vowels are " +numVowels(word.toLowerCase()));

   }

}

The method definition and complete program is given in the explanation section

Explanation:

import java.util.Scanner;

public class CountVowelsModularized {

   public static void main(String[] args) {

       Scanner in = new Scanner (System.in);

       System.out.println("Enter a string Value");

       String word =in.nextLine();

       System.out.println("The Number of vowels are " +numVowels(word.toLowerCase()));

   }

   public static int numVowels(String string) {

       int counter = 0;

       for (int i = 0; i < string.length(); i++) {

           if (string.charAt(i) == 'a' || string.charAt(i) == 'e' || string.charAt(i) == 'i'

                   || string.charAt(i) == 'o' || string.charAt(i) == 'u') {

               counter++;

           }

       }

       return counter;

   }

}

Final answer:

The CountVowelsModularized program is a Java application that counts the number of vowels in a string via a dedicated method. The program treats 'a', 'e', 'i', 'o', and 'u' as vowels and does not count 'y'. The solution demonstrates a modular design in which functionality could be easily modified or expanded.

Explanation:

The question asks to write a program named CountVowelsModularized which includes a method that counts the number of vowels in a provided string. In this case, the vowels to be counted are a, e, i, o, and u. The letter y will not be considered a vowel for this particular task. Below is an example code written in Java that demonstrates how you could implement such a program:

This modularized approach provides a clear path to expand or modify the program, should the definitions of vowels change or additional functionality be required.

This is an example of b2b customer service.

Explanation:

B2b customer service is the customer service which stands for business to business. It refers to the sale that you make to the business instead of an individual consumers.

B2b customer experiences include creating a personalized. omni channel experience and building lasting relationships while providing convenient, digital solutions.

Answer:

# include<iostream>

#include<conio.h>

using namespace std;

main()

{

float f, c;

cout<<"enter temperature in Fahrenheit ="

cin<<f;

c=(f-32)/1.8;

cout<<"/n Temperature in Celsius ="<<c;

getch();

}

Explanation:

The conversion formula from Fahrenheit to Celsius is given as:

C= (F-32) x 5/9

we take an input in Fahrenheit and put in above formula and covert it in Celsius.

To Temperature conversionfrom Fahrenheit to Celsius, the formula is 'temperatureCelsius = (temperatureFahrenheit - 32) * 5/9'. This can be implemented as a statement in a program to assign a variable as needed, and the specifics of use will depend on the requirements of the program and language used.

To convert Fahrenheit to Celsius, we use the formula:

temperatureCelsius = (temperatureFahrenheit - 32) * 5/9

In programming, you can implement it as a statement that assigns the Celsius equivalent to a variable:

Example in Java:

int temperatureFahrenheit = 77;

double temperatureCelsius = (temperatureFahrenheit - 32) * 5.0/9.0;

System.out.println(temperatureCelsius);

This will directly convert the Fahrenheit temperature to Celsius. The specifics of how you would use this statement depend on the requirements of your program and the programming language you're using.

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Answer:

- Different route paths, due to dynamic routing in WAN.

- Local area networks have one or very few paths to destination and does not require dynamic routing.

Explanation:

A wide area network is a network that covers a large geographical area. It goes beyond the private local area network, with more routing paths and network intermediate devices. The router is an essential tool for routing packets between devices. It requires a routing path, learnt statically or dynamically to work.

There are mainly two types of route paths, they are, static routes and dynamic routes.

The dynamic routes are used mainly in WAN. Sometimes, there can be multiple path to a destination, the router determines the best path to send the packets. It sends the sequenced packets through all available path and they arrive at the destination depending on the path used, the packets arrive in an out -of-order fashion in the destination and a rearranged.

Answer:

i looked it up and the answer i got would be D

Explanation: hope this helps!

Answer:

The correct answer to the following question will be "Mantrap".

Explanation:

Therefore, Mantrap is the right answer.

Answer: - availability

Explanation: disconnecting a cable connection to the company server shuts you out from having access to files contained in that server until reconnection and probably authentication and login.

Answer:

B.) Deterrent

Explanation:

Final answer:

Backup of server data provides a Corrective control in the case of a system issue, being used to restore systems to their previous state after a problem has occurred.

Explanation:

The type of control that backup of server data provides in case of a system issue is Corrective. This is because backups are used to restore data and systems to their last known good state after an adverse event has occurred, correcting the impact of the event.

Backups do not prevent issues from happening, nor do they deter potential problems; their main purpose is to correct the state of the system after an issue has happened. They also do not typically detect issues, as their role is primarily focused on recovery.

It's important to note that organizations often develop a Corrective and Preventative Action plan to manage potential issues identified through processes like Statistical Process Control discussed in class.

Answer:

There are 7 layers in linux.

Explanation:

As networking is difficult and complex.

Imagine if every application had to know how to communicate on every step that would be more than just complex. So, rather than reinvent something which will help it to communicate let’s just make something that will automatically controls the communication and for that protocols came in to live.

As for the linux operating system, it is not exceptional from other operating systems.

There are 7 layers on network protocol stack use to communicate with other network protocol stack.

1. Application layer

2. System call interface

3. Protocol agnostic interface

4. Network protocol

5. Device agnostic interface

6. Device drivers

7. Physical hardware

All the layers vary in their functionality.

One more important thing to remember is that the network protocol stack layers is not one way its 2 way communication. First, when a client request to a network and second, when the request is full filled.

The top most layer is a part of user space, the next five layers comes in the kernel space and the final layer is the physical layer.

Application layer:

When a client or user request to  a network the request initially comes to this layer.

On this layer we use tcp/ip protocol.

System call interface(SCI):

When application layer make a call to the kernel this layer handles that call. And take the request to the next layer.

Protocol agnostic interface:

This layer has two functions “talking” or “listening”. There is a thing called sockets which perform these functions and each socket has an id which is used specifically for an application.

Network protocol:

This layer is used for how the data is sent or received.

Device agnostic interface:

It is used to connect data from/to kernel user space and the network device drivers which allows the data to prepare itself for transmission over the medium from the network device.

Physical hardware :

This layer is responsible for the data packets transmission and received from the network medium being used whether cable or wireless.

Answer:

c. parameters

Explanation:

Parameters are simply placeholders (sometimes called dummy variables) used mainly by methods to perform their given tasks so as to provide controlled variability in  the program(or algorithm). Sometimes they are called arguments. But then it is much more specific to simply use parameters rather than arguments because arguments are the variable values that the parameters are serving as placeholders for.

Parameters identify and describe values that are passed into a function or subroutine.

Parameters are also used for simulation and testing purposes where the input s to the program are or can be varied.

PS: Methods are just functions performed by a class in a program.

Answer:

The answers to each question are explained below

Explanation:

Who was king in the year 1000? Give the name and nickname.

Query:

       SELECT name, nickname FROM Kings

      WHERE beginReign <=1000 AND endReign >=1000;

Explanation:

SELECT is used to query the database and get back the specified fields.

name and nickname are columns of Kings table.

FROM is used to query the database and get back the preferred information by specifying the table name.

Kings is a table name.

WHERE is used to specify a condition based on which the data is to be retrieved. The conditions are as follows:

beginReign <=1000

endReign >=1000

AND clause between the conditions indicate that both the conditions must be true.

Find all the pairs of kings or queens (A,B) such that A was the great grandchild of B.

Query:

       SELECT p.child, ggp.parent

       FROM Parents p, Parents gp, Parents ggp

       WHERE p.parent = gp.child AND gp.parent = ggp.child;

Explanation:

SELECT is used to query the database and get back the specified fields.

child is a column of Parents table aliased as p(parent).

parent is a column of Parents table aliased as ggp (great grand father).

FROM is used to query the database and get back the preferred information by specifying the table name.

parents is a table name. Three aliases named p(parent), gp(grand father) and ggp(great grand father) are created.

WHERE is used to specify a condition based on which the data is to be retrieved. The conditions are as follows:

p.parent = gp.child

gp.parent = ggp.child;

AND clause between the conditions indicate that both the conditions must be true.

Find the names of those kings or queens that were the parent of two or more kings or queens. List each such person only once.

Query:

       SELECT parent FROM Parents

       GROUP by parent

       HAVING COUNT(*) > 1;

Explanation:

SELECT is used to query the database and get back the specified fields.

parent is a column of Parents table .

FROM is used to query the database and get back the preferred information by specifying the table name.

parents is a table name.

Group by clause is used to group the data on column parent.

Having clause specifies the condition based on which the data is to be retrieved.

Find for each house the number of kings or queens of that house.

Query:

       SELECT house, COUNT(name)

       FROM Kings

       GROUP by house;

Explanation:

SELECT is used to query the database and get back the specified fields.

house is a column of Kings table .

FROM is used to query the database and get back the preferred information by specifying the table name.

Kings is a table name.

Group by clause is used to group the data on column house.

Several times in British history, kings or queens have deposed one another, so that their reigns overlapped. Find all such pairs, listing the pairs in both orders; i.e., list both (A,B) and (B,A). However, be careful not to list pairs A and B where the only overlap is that A's reign ended in the same year that B's began, or vice-versa.

Query:

      SELECT k1.name, k2.name FROM Kings k1, Kings k2

      WHERE k1.name <> k2.name

      AND k1.beginReign < k2.beginReign

      AND k2.beginReign < k1.beginReign;

Explanation:

SELECT is used to query the database and get back the specified fields.

name is a column of Kings table.

FROM is used to query the database and get back the preferred information by specifying the table name.

Kings is a table name. Two aliases named k1 and k2 are created.

WHERE is used to specify a condition based on which the data is to be retrieved. The conditions are as follows:

k1.name <> k2.name

k1.beginReign < k2.beginReign

k2.beginReign < k1.beginReign;

AND clause between the conditions indicate that both the conditions must be true.

AND clause between the conditions indicate that both the conditions must be true.

Hence, AND clause between the conditions indicate that both the conditions must be true.

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Answer:

C. Address Resolution Protocol (ARP) poisoning.

Explanation:

An antivirus signature file is a program written to describe and remedy a group of identified malware attacks, to prevent future attacks from the described malicious softwares. It is constantly updated to identify more malicious softwares.

A network access protocol (NAC) is used to implement access control on a network, collaborating with other protocols like ARP and unifying antiviruses, intrusion detection and vulnerability assessment.

When the virus signature file is out of date, the NAC allows a new malware, the antivirus can not identify, to access the network through ARP poisoning.

Answer:

1. SaaS

Explanation:

Cloud computing is a platform that provides online server services for an individual or a group of clients. The cloud computing services are of four types, namely, SaaS (software as a service), IaaS (infrastructure as a service), PaaS (platform as a service) and MaaS (mobility as a service).

The SaaS is used by web or email services, where the server sends or loads the application data to the client, and all data can be viewed and modified on the copy of the data sent to the client.

Answer:

The correct answer is: "b. occurs because an alternative technology could be introduced by competitors".

Explanation:

It is very difficult to assess how technological uncertainty has been developed and maintained throughout the years, although it is possible to state that it may occurs when other alternative technologies are developed and launched, besides other factors. Technology companies and agencies are interested in developing their products as best as possible, therefore, competition increases with marketability and produces uncertainty among all developers, software and hardware engineers, and other Information Technology (IT) workers who are responsible for creating new technological tools which may solve the problem of uncertainty among them all and improve society.

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Answer:

Explanation:

Yes we could find microprocessors almost everything even in ourself because this technology revolution is stronger day to day, and smart thing is the future, there are smartphones, watch, even houses, nowadays there are houses and hotels with smart technology even in the curtains, with a voice command we can program activities like wash or clean, and all these products have microprocessors.

Final answer:

The Java program uses a for loop to calculate the sum of the first 9 positive integers. The sum variable is increased by val each loop iteration, while val is incremented by 1. The output of the program is therefore 45.

Explanation:

The student asked about the output of a Java program with a for loop that calculates the summation of numbers. To determine the output, we can trace the loop's execution. Starting with int sum = 0, we enter the for loop, which initializes int k = 0 and will iterate until k is greater than 8. On each iteration, the current value of int val is added to sum, and then val is incremented by 1. Thus, the loop runs 9 times (from k = 0 to k = 8 inclusive) and sums the numbers 1 through 9. We end up with sum equalling the sum of the first 9 positive integers, which is 45. Hence, the output printed to the console is 45.

Answer:

Touch screen

Explanation:

A computer system is an electronic device that is meant to give processed output values to input values. The computer components are categorized into three parts, namely input devices, output devices and processing unit.

Input device component of a computer are used to give commands or input data values to the computer. Examples of input devices are keyboards, mouse, joystick, light pen and most recently, touchscreens.

Touch screen are input devices on the screens on computer systems like laptops and smartphones, that uses light sensors to input data when the screen is touched with the finger or a stylus.

Answer:

The required code is given below with appropriate comments for better understanding

Explanation:

public class Population

{

  public static void main(String[] args)

  {

      int currentPopulation=312032486;

      int numSecInyear=24*60*60*365;//for one day 24 hours,60 min,60 sec

      System.out.println("current population:"+currentPopulation);

      int numBirths=numSecInyear/7;

      int numDeaths=numSecInyear/13;

      int numImmigrant=numSecInyear/45;

      //print the result using for loop

      for(int i=1;i<=5;i++){

          currentPopulation=currentPopulation+numBirths-numDeaths+numImmigrant;//add up births and immigrants, remove deaths

          System.out.println("Population After year-"+i+":"+currentPopulation);

      }

  }

}

Sure! Here's a Python program to calculate and display the population for each of the next five years based on the provided assumptions:

#constants

BIRTH_RATE = 1 / 7

DEATH_RATE = 1 / 13

IMMIGRANT_RATE = 1 / 45

SECONDS_PER_YEAR = 365 * 24 * 60 * 60

# Initial population

population = 312032486

# Calculate population for each of the next five years

for year in range(1, 6):

   # Calculate the change in population for one year

   births = SECONDS_PER_YEAR // 7

   deaths = SECONDS_PER_YEAR // 13

   immigrants = SECONDS_PER_YEAR // 45

   population_change = births - deaths + immigrants

   # Update the population

   population += population_change

   # Display the population for the current year

   print(f"Population after {year} year(s): {population}")

This program first defines constants for birth rate, death rate, immigrant rate, and the number of seconds in a year. Then, it initializes the population variable with the current population. It calculates the population change for each of the next five years based on the provided rates, updates the population accordingly, and prints the population for each year.

Answer: all of the above

Explanation:

Answer:

The program using do-while loop defined as follows:

Program:

#include <stdio.h> //include header file

int main() //defining main method

{

int i = 0; //defining integer variable i and assign value.

//defining do-while loop

do  

{

printf("%d", ++i); //print value

}while (i<5); //check condition  

return 0;

}

Output:

12345  

Explanation:

Output of given program:

In the given program, it will not print any value because in while loop semi colon is used which is not valid.

Program Explanation:

In the above C language program header file is included, which provides features to use basic function then the main method is defined inside this method an integer variable "i" declare, that holds a value which is "0".  In this method, the do-while loop is defined. In the do section, we print value and in the while block checks the condition which is i is less than 5.

Answer:

#include <stdio.h>

void main()

{

int i = 0;

do{

printf("%d ", ++i);

}

while (i < 5);

i=i+1;

}

}

Explanation

The #include needs to include something and that's the standard input and output which is coded has stdio.h

In the do while loop what it does is print the value of I while I is less than 5 and you increment I value so as to prevent infinite looping

Answer:

Assembler

Explanation:

Assembler is a type of utility program that is used to change the assembly language to machine code. it utilized the commands from assembly code to change them to binary code.

it used to change 2 types of symbols like assembler symbol and programmer symbols.

it makes the work easily by converting the language code into a readable form to the operating system.

The utility program which reads an assembly language source file and produces an object file is; Choice C: Assembler

Assemblers are share quite some similarities to compilers in that they produce executable code.

However, An assembler is a utility program which converts assembly language into machine code. This is done by taking the basic commands and operations from assembly code and converts them into binary code that can be recognized by a specific type of processor.

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Answer:

After you select Grade It Now and read the explanation, just click the Grade It Now or Save and Continue button after you’ve answered each question to move on to another question.

Explanation:

Welcome to Aplia different type of questions:

- True or False answers: Not able to redo practice problems after deadline.

- Graded at Deadline problems: Not be able to try a problem again after it is graded.

- Grade It Now problems: you can Save your work and come back to it later, by clicking Save and Continue, you can attempt each problem 3 times.

After clicking the Grade It Now button, you can click on any of the blue bars labeled “Explanation” to see the correct answer.

- Scroll down questions to check all that apply: by clicking the down arrow, pressing the backspace key on the keyboard; using your mouse to drag the scroll bar.

- Fill in blanks questions: completing sentences or entering values into a table.

- Radio button questions and blanks: only one correct answer.

- Checkbox questions: multiple correct statements.

Answer:

(a) 845 = 0000 0011 0100 1101

(b) 1500 = 0011 1010 1001 1000

(c) 100 = 0000 0000 0110 0100

(d) -923 = 1111 1100 0110 0101

Explanation:

NOTES:

First Note: The question requests that the numbers be represented in word-length. That means they should be represented in 16bits (a word is 2 bytes).

Second Note: To convert a number to its 2's complement representation,

(i) if the number is positive, the usual conversion to binary will suffice. You might just need to add zero at the beginning of the sequence of bits to ensure that the leftmost bit is a zero(0).

(ii) if the number is negative, then;

=> convert the magnitude of the number to its binary

=> add zeros to the beginning of the sequence of binary until the sequence has the specified length

=> flip each bit in the sequence and add 1 to the result.

SOLUTION:

Applying the rules in the notes above, lets convert the numbers.

(a) 845 => The number is positive, conversion to its binary will suffice

2  |  845

2  |  422 R 1

2  |  211 R 0

2  |  105 R 1

2  |  52 R 1

2  |  26 R 0

2  |  13 R 0

2  |  6 R 1

2  |  3 R 0

2  |  1 R 1

2  |  0 R 1

Writing the remainders upwards, we have

845 = 1101001101

Pad with zeros to convert it to its word-length representation.

845 = 0000 0011 0100 1101

(b) 15000 => The number is also positive, so following the same step as above,

15000 = 11101010011000

Pad with zeros to convert it to its word-length representation.

15000 = 0011 1010 1001 1000

(c) 100 => The number is also positive, so following the same step as above,

100 = 1100100

Pad with zeros to convert it to its word-length representation.

100 =  0000 0000 0110 0100

(d) -923 => The number is negative;

-->  first convert its magnitude (923) to binary

923 = 1110011011

--> Pad with zeros to convert it to its word-length representation.

923 =  0000 0011 1001 1011

--> Flip the bits

0000 0011 1001 1011 = 1111 1100 0110 0100

--> Add 1 to the result above

1111 1100 0110 0100 + 1 = 1111 1100 0110 0101

Therefore;

-923 = 1111 1100 0110 0101

The word length 2's complement representations are:

a. 845: 001101001101

b. 15000: 0011101101100000

c. 100: 0000000001100100

d. -923: 1111110001000101

We have,

To find the word-length 2's complement representation of each decimal number, we first need to determine the binary representation of the absolute value of the number and then convert it into its 2's complement form if the number is negative.

Assuming the word length is 16 bits:

a. 845:

Binary representation of 845: 0011 0100 1101

Since it is positive, the 16-bit 2's complement representation remains the same: 0011 0100 1101

b. 15000:

Binary representation of 15000: 0011 1011 0110 0000

Since it is positive, the 16-bit 2's complement representation remains the same: 0011 1011 0110 0000

c. 100:

Binary representation of 100: 0000 0000 0110 0100

Since it is positive, the 16-bit 2's complement representation remains the same: 0000 0000 0110 0100

d. -923:

Binary representation of 923: 0000 0011 1011 1011

To find the 16-bit 2's complement representation, we first invert all the bits: 1111 1100 0100 0100

Then, add 1 to the inverted value: 1111 1100 0100 0101

So, the 16-bit 2's complement representation of -923 is: 1111 1100 0100 0101

Thus,

a. 845: 001101001101

b. 15000: 0011101101100000

c. 100: 0000000001100100

d. -923: 1111110001000101

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