The code defines a Java class named "Test" with a public static method called "main". The "main" method takes an array of String objects as its argument and throws a "MyException" object, which is a subclass of "Error".
In the body of the "main" method, the code prints the string "Welcome to Java" to the console using the "System.out.println" method.
The "MyException" class is defined as a subclass of "Error", which is a subclass of "Throwable". This means that "MyException" is an unchecked exception, which indicates that the program may not be able to recover from this type of exception.
Overall, this code does not seem to serve any practical purpose since it only prints a message to the console. However, it does demonstrate the use of custom exceptions in Java and the concept of checked and unchecked exceptions.
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What happens if you use the Eraser Tool on an unlocked layer?
If you use the Eraser Tool on an unlocked layer, it will erase the pixels in that layer that are directly under the eraser brush. The pixels in the layers below the one being edited will remain unaffected.
By doing this, you may access the layer and use the rubber. Keep in mind that a Background Layer will become Layer 0 after it has been unlocked. The lock icon won't appear on a layer that is unlocked.When using the Pencil tool, an auto-erase feature is available as well. In order to assist you start to comprehend which one you might want to employ, I'm going to highlight the distinctions between each of them. But it's crucial to remember that the Eraser tool is destructive.
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12. What is a network baseline, and when is it established?
A network baseline refers to a snapshot of a network's performance, usage, and behavior at a specific point in time.
This snapshot is established by monitoring the network over a period of time to gather data on network traffic patterns, bandwidth utilization, application usage, and other metrics. Once this data is collected and analyzed, a network baseline is established. This baseline serves as a reference point for future network performance analysis and troubleshooting. It also helps network administrators to identify and respond to anomalies and deviations from the established baseline.
A network baseline is a representation of a network's typical behavior across time. It serves as a benchmark for capacity, performance, and security monitoring. Network traffic, bandwidth use, protocol distribution, and other important information are recorded in a baseline. Network administrators can recognise trends, spot anomalous behaviour, and fix problems by analysing this data. Additionally, a baseline can be used to spot potential security risks like unusual traffic patterns or unauthorised access attempts. In order to undertake proactive network monitoring and maintenance, establishing a baseline is essential since it serves as the basis for performance optimisation, capacity planning, and incident response. Additionally, it assists in ensuring the effective and efficient use of network resources.
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Choose the best programming design method.
You are creating a program for a process that can easily be broken into modules but is not a simple process. An excellent choice for this program is:
A. structured programming design.
B. object-oriented programming design.
C. top-down programming design.
B. Object-oriented programming design is the best choice for a program that can be broken into modules but is not a simple process.
Object-oriented programming design allows for the creation of classes that can encapsulate data and methods, making it easier to organize and manage complex programs. It also allows for inheritance and polymorphism, which can help to make code more flexible and reusable. Structured programming design and top-down programming design are more suitable for simpler, more linear processes.
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Answer:
A. structured programming design
Explanation:
To sort records in descending order, follow the name of the sort key with the REVERSE operator. T/F
False. To sort records in descending order, you typically use the DESC keyword or the DESCENDING keyword, not the REVERSE operator. The REVERSE operator is not commonly used for sorting in most programming or query languages.
In SQL, for example, to sort records in descending order based on a specific column, you would use the DESC keyword after the sort key. Here's an example:
sql
SELECT column1, column2
FROM table_name
ORDER BY column1 DESC;
In this example, the result set will be sorted in descending order based on the values in `column1`.
Similarly, in other programming or query languages, the syntax may vary, but the concept remains the same. You typically specify the direction of the sort explicitly, using keywords like DESC or DESCENDING, rather than using the REVERSE operator.
Therefore, the statement is false. To sort records in descending order, you would use the DESC keyword or a similar directive, not the REVERSE operator.
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Jen's department has been assigned the task of developing new flavors for the company's line of soft drinks. In this instance, the department members function as a(n) ______ group. Multiple choice question.
Jen's department, tasked with developing new flavors for the company's soft drinks, functions as a "project" group.
A project group refers to a temporary team formed to accomplish a specific goal or task. In this case, the department members have come together with the common objective of creating new flavors for the company's soft drinks. They are likely to collaborate, brainstorm ideas, conduct research, and experiment to develop innovative and appealing flavors for the product line. Once the task is completed, the project group may dissolve or move on to other projects.
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You can add fields to a form in either layout view or design view. A. True B. False
The statement "You can add fields to a form in either layout view or design view." is true because, in Microsoft Access, files can be added in either layout view or design view. The correct answer is option A.
Layout view allows you to make changes to the form while it is displaying data, which can be useful for quickly adding or modifying fields.
Design view, on the other hand, gives you more control over the form's structure and properties. You can use it to add and remove fields, adjust the size and position of controls, and set various options such as default values and validation rules.
Both views have their advantages and disadvantages depending on the task at hand, so it's important to understand how to use them effectively in order to create forms that are both functional and visually appealing.
Therefore option A is correct.
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the number of clock cycles it takes to write or read a row of data
It refers to the amount of time it takes for a computer to access and retrieve data from a single row in memory, measured in clock cycles.
What does the term "number of clock cycles it takes to write or read a row of data" refer to?In computer memory systems, the row access strobe (RAS) cycle time is the time interval required to access a row of data in dynamic random-access memory (DRAM).
The RAS cycle time includes the time required to activate the desired memory row and to precharge the previously accessed row.
During the RAS cycle, the memory controller sends a RAS signal to activate the row that contains the target memory cell.
The activated row is read into the memory buffer, or a new value is written to it. Once the RAS cycle is complete, the row is precharged and returned to a standby state to await the next access.
The RAS cycle time is an important parameter for memory system performance and is a key factor in determining the memory access latency.
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the sorting process is usually reserved for a relatively large number of data items. True or false?
The statement "The sorting process is usually reserved for a relatively large number of data items" is generally false.The sorting process is a fundamental operation in computer science, and it can be used for any number of data items, regardless of whether the data set is large or small.
For small data sets, simpler sorting algorithms like insertion sort or selection sort can be more appropriate. These algorithms have a time complexity of O(n^2), which means that they can sort a small number of items efficiently.
For larger data sets, more efficient sorting algorithms like quicksort, mergesort, or heapsort are typically used. These algorithms have a time complexity of O(n log n), which means that they can sort larger data sets more efficiently than the O(n^2) algorithms.
The choice of sorting algorithm depends on the size of the data set, the available memory, and the specific requirements of the application and the sorting process can be used for any number of data items.
So the statement is False.
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Why did I get a warning?
You got a warning because the question you posted is not in line with braing community guidelines. I will advise you read through the guidelinesso that subsequent questions will be in line with it.
What is a warning?A warning is a term that is known as caution and may be a explanation or sign that cautions somebody of a potential peril, hurt, or chance. It is ordinarily given in development to anticipate or minimize the affect of a potential risk.
Note that warning can come in different shapes, such as verbal notices, composed notices, visual signals, or capable of being heard cautions. The reason of a warning is to advise and get ready people to require essential safety measures or maintain a strategic distance from particular activities that may cause hurt or threat.
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T/F. Combining a table with itself results in a faster query.
The statement" Combining a table with itself results in a faster query" is False because Combining a table with itself, also known as a self-join, can actually slow down a query because it requires additional processing power and can create duplicate rows.
A self-join is used when you want to combine rows from a table with other rows from the same table based on a specified condition.
This operation requires accessing and comparing the rows within the same table, which can involve a significant amount of data processing.
The performance of a self-join depends on various factors such as the size of the table, the presence of indexes, the join condition complexity, and the underlying database system's optimization capabilities.
In some cases, a self-join can be optimized efficiently by the database engine, but it's not a guarantee.
To improve the performance of a self-join, it's important to ensure that appropriate indexes are in place, the join condition is optimized, and the underlying database engine is properly configured.
Additionally, alternative approaches like subqueries or other optimization techniques may be worth considering depending on the specific scenario.
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A file owner can grant or remove the access to a given file.
Select one:
True
False
It is accurate to say that the owner of a file can grant or revoke access.
In a legal context, the phrase is frequently used to describe the removal of specific privileges or credentials, such as a driver's license. In order to penalize someone for disobeying the rules or for other reasons, access or status might be taken away accurate from them.
.Enter your Account and go to the Security tab. Selected Manage third-party access under "Third-party apps with account access." Decide the service or program you wish to uninstall. Decide on Remove Access.No further payments will be stopped if a customer's access to a product is revoke access
. They won't be able to use the Product anymore, though, and they'll be dropped from it.
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What is the output of the following code:
public class Test {
public static void main(String[] args) {
Object o1 = new Object();
Object o2 = new Object();
System.out.print((o1 == o2) + " " + (o1.equals(o2)));
}
}
The output of the code will be "false false". This is because although both objects are of the same class and have the same attributes, they are created as separate instances, so their memory addresses are different. Therefore, the "==" operator will return false, and the equals() method will also return false since it checks for object equality based on the memory address.
In the given code, two new Object instances are created and assigned to variables o1 and o2. Then, the == operator is used to compare the two variables, and the equals() method is called on o1 with o2 as the argument.
The == operator checks whether the two variables refer to the same object in memory. Since o1 and o2 point to different objects, the expression o1 == o2 evaluates to false.
The equals() method, on the other hand, compares the contents of the two objects. Since Object does not override the equals() method from java.lang.Object, it uses the default implementation, which also checks for reference equality (i.e., whether the two objects are the same object in memory). Therefore, the expression o1.equals(o2) also evaluates to false. Thus, the output of the program would be: false false
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In general, data structure refers to grouping attributes from the logical database model into physical records. True False
The given statement "In general, data structure refers to grouping attributes from the logical database model into physical records" is False because a data structure is a way of organizing and storing data so that it can be accessed and manipulated efficiently. It does not refer to the grouping of attributes into physical records.
Data structures can include arrays, linked lists, trees, graphs, and many others. These structures can be implemented in various ways depending on the application and the data being stored.
In the context of databases, data structures are used to organize the data so that it can be accessed and searched quickly. This may involve indexing, hashing, or other techniques.
Therefore, while data structures are an important part of database design and implementation, they do not refer specifically to the grouping of attributes into physical records.
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To bypass Greylisting for a specific email domain, you should add it to your ________ Group.
To bypass Greylisting for a specific email domain, you should add it to your Permitted Sender Group.
Permitted Sender Group is a Mimecast feature that allows you to create a list of trusted email domains or IP addresses that are exempt from certain security checks, such as Greylisting, to ensure that their emails are delivered without delay. By adding a trusted sender to your Permitted Sender Group, you can whitelist their emails and prevent them from being delayed or rejected by Mimecast's security checks.
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you have a computer that runs windows 10. where would you go to verify the system
To verify the system on a computer running Windows 10, you can go to the System Information tool.
To verify the system information on a computer running Windows 10, follow these steps:
1. Press the Windows key on your keyboard or click on the Start button.
2. Type "System Information" in the search bar and click on the System Information app that appears in the search results.
3. In the System Information window, you can view various details about your Windows 10 computer, including the operating system version, processor, installed memory, and other hardware information.
By following these steps, you can verify the system information for your Windows 10 computer.
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T/F. A procedure is run by calling it by its name.
How many usable IP addresses can be assigned to hosts on a /26 subnet?
1) 254
2) 126
3) 62
4) 30
A /26 subnet has a total of 64 IP addresses. However, out of these 64 IP addresses, two are reserved for network and broadcast addresses respectively. Therefore, we have a total of 62 usable IP addresses that can be assigned to hosts on a /26 subnet. So, the correct option is 3).
To understand this better, let's break down the subnet mask. A /26 subnet mask is 255.255.255.192. This means that the first 26 bits of the IP address are reserved for the network portion, and the remaining 6 bits are used for host addressing. As we know, the formula to calculate the number of hosts is 2ⁿ⁻², where n is the number of bits used for host addressing. In this case, 2⁶⁻² = 62. Therefore, we have 62 usable IP addresses that can be assigned to hosts on a /26 subnet.
It is important to note that subnetting is an essential concept in networking and helps to efficiently allocate IP addresses. By dividing a large network into smaller subnets, we can reduce the amount of broadcast traffic and increase network performance.
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what do aps use to broadcast the ssid so users can locate the network?
Access Points (APs) use Beacon frames to broadcast the SSID (Service Set Identifier) of the wireless network. Beacon frames are sent periodically by the APs and include information about the network,
such as the SSID, security settings, supported data rates, and other parameters. The Beacon frames are broadcasted at regular intervals, allowing wireless devices to easily detect the presence of the network and connect to it if desired. Access Points (APs) use Beacon frames to broadcast the SSID (Service Set Identifier) of the wireless network. Beacon frames are sent periodically by the APs and include information about the network, aps use to broadcast the ssid so users can locate the network.
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Which app is used to synchronize data to an iOS-based mobile device? · 1.iTunes 2.Auto Sync 3. MIME 4.SMTP.
Auto Sync is the app is used to synchronize data to an iOS-based mobile device. Hence, option B is correct.
Automatic sync typically refers to synchronization using an email client, such as Outlook Desktop Add-on, and successful sync typically relates to account access.
It entails that your address book, or contacts, is duplicated and synchronized to the cloud as well as with any other devices. That are logged in with the same user account as the one you are using on that particular Android smartphone.
Thus, option B is correct.
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In the Marketing Budget Plan worksheet, change the Page Size to A4.
Once you have selected the A4 page size, make any other desired adjustments to margins, orientation, and scaling in the Page Setup dialog box. Click OK to apply the changes and set the worksheet to A4 page size.
In general steps to change the page size to A4 in Microsoft Excel:
Click on the Page Layout tab in the Ribbon menu at the top of the Excel window.
Click on the Size button, which will display a drop-down menu of pre-set page sizes.
Select A4 from the list of options.
Alternatively, you can also click on the More Paper Sizes option at the bottom of the drop-down menu and manually enter the dimensions for A4 paper in the Page Setup dialog box.
Once you have selected the A4 page size, make any other desired adjustments to margins, orientation, and scaling in the Page Setup dialog box.
Click OK to apply the changes and set the worksheet to A4 page size.
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Choose the best programming design method.
You are creating a program for a client who wants it to be simple and straightforward. An excellent choice for this program is:
A. structured programming design.
B. object-oriented programming design.
C. top-down programming design.
A. structured programming design would be the best choice for a program that needs to be simple and straightforward.
Structured programming is a procedural programming paradigm that uses a linear, top-down approach to problem-solving. It involves breaking down a program into smaller, more manageable modules or functions, which are then executed in a sequential order. This approach is effective for programs that have clear, well-defined objectives and do not require a lot of complexity or interactivity. It is also easier to understand and maintain than other programming paradigms.
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Write an MPI program, countprimes which will count the number of prime numbers in the numbers from 1 to n inclusive where n is a long integer. The value for n which should be set in the program using a constant should be 25,000.
The purpose of the MPI program "countprimes" is to count the number of prime numbers between 1 and a given integer n using multiple processes. In this case, n is set to 25,000.
What is the purpose of the MPI program "countprimes"?The provided paragraph outlines a task to be completed using MPI (Message Passing Interface), which is a library specification for message-passing and parallel programming.
The task is to write an MPI program named "countprimes" that counts the number of prime numbers between 1 and a given long integer n (in this case, 25,000).
The program should divide the computation among multiple processors to speed up the computation.
This means that each processor will be responsible for checking a subset of the numbers from 1 to n for primality, and then reporting its count to the master process which will aggregate the results and output the total count of primes.
This approach allows for the efficient use of resources in parallel computing environments.
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For each of the four ANSI levels of query isolation, discuss the impact on recovery. What prop erties must a transaction schedule have to ensure recovery works correctly
ANSI defines four levels of query isolation, each with its own properties that affect the impact on recovery: Read Uncommitted, Read Committed, Repeatable Read.
Serializable: This level ensures that concurrent transactions behave as if they were executed serially, preventing any interleaving of transactions. In the event of a failure, the recovery process must ensure that all transactions are committed or rolled back properly, to prevent inconsistent data from being read. To ensure recovery works correctly, a transaction schedule must have the following properties: Atomicity: Each transaction should be treated as a single unit of work, meaning that either all of its operations are executed, or none of them are. This ensures that transactions can be rolled back if necessary, without leaving the database in an inconsistent state. Consistency: Each transaction should maintain the consistency of the database, meaning that it should start and end in a consistent state. This ensures that all transactions can be committed, without leaving the database in an inconsistent state. Isolation: Each transaction should execute independently of other transactions, meaning that they should not interfere with each other. This ensures that each transaction can be rolled back or committed independently, without affecting the consistency of the database. Durability: Each committed transaction should persist, even in the event of a failure, to ensure that the database can be restored to a consistent state. This means that the recovery process must ensure that all committed transactions are stored safely, and can be recovered in case of failure.
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Each subroutine is given its own stack frame(activation record) at the tope of the stack. What does it contain?
Each stack frame or activation record for a subroutine typically contains information such as the return address.
The values of any parameters passed to the subroutine, the values of any local variables declared within the subroutine, and the value of the previous stack frame's base pointer. The return address is the memory address where the program should resume execution after the subroutine completes. Parameters are the values passed to the subroutine when it is called, and local variables are variables declared within the subroutine that are not accessible outside of it. The base pointer points to the start of the current stack frame, and is used to locate local variables and parameters within the stack. The stack frame is created when the subroutine is called and destroyed when the subroutine returns.
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____________ cause more damage to computers, networks, and programs than all the viruses put together.
Malware and cyber attacks caused by hackers and other malicious actors can cause more damage to computers, networks, and programs than all the viruses put together.
These types of attacks can include ransomware, trojans, spyware, and phishing scams, which can lead to data breaches, financial loss, and other serious consequences. It is important to take proactive measures to protect against these threats, such as installing security software, keeping software up to date, and practicing safe browsing habits.
It is true that malware and cyber attacks can cause significant damage to computers, networks, and programs. While viruses are one type of malware, other types of malware, such as ransomware, Trojan horses, and spyware, can also cause damage to systems.
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the local loop commonly consists of either four or ____ wires.
The local loop commonly consists of either four or two wires.
What are the common configurations of wires found in the local loop?The local loop refers to the physical connection between a telephone subscriber's premises and the telephone exchange. It is an essential component of the telephone network infrastructure and typically consists of twisted pair copper wires. The local loop can be configured in two ways, either using four or two wires.
Four-wire local loops are used for digital transmission, while two-wire loops are used for analog transmission. The choice of which configuration to use depends on the transmission technology employed. The local loop is a critical component of the telephone network, and its proper design and maintenance are essential to ensure reliable and high-quality communication services for end-users.
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Show the output of the following code:String[] array = {"red", "green", "blue"};ArrayList list = new ArrayList<>(Arrays.asList(array));list.add(0, "red");System.out.println(list);
A. ["red", "green", "blue", "red"]
B. ["red", "green", "blue"]
C. ["red", "red", "green", "blue"]
D. ["red", "green", "red", "blue"]
The output of the given code, String[] array = {"red", "green", "blue"};ArrayList list = new ArrayList<>(Arrays.asList(array));list.add(0, "red");System.out.println(list); is option C. ["red", "red", "green", "blue"].
This is because the code creates a String array containing the elements "red", "green", and "blue". It then creates an ArrayList and adds all the elements of the String array to it using the Arrays.asList() method.
Next, it adds the element "red" at index 0 of the ArrayList using the add() method. This shifts the existing elements to the right and inserts "red" at the beginning of the ArrayList. This is because the add() method inserts the new element at the specified index, rather than replacing the existing element.
Finally, the code prints the entire ArrayList using System.out.println(). Therefore, the output will be ["red", "red", "green", "blue"].
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Simplify the code in lines 20-28 as follows: 1. Delete lines 20 and 28; 2. Add an additional condition !listOfPendingURLs.contains(s) to the if statement in line 25. Write the complete new code for the while loop in lines 20-29. Does this revision work?
However, based on the instructions provided.It is not possible to determine if this revision works without additional context about the purpose and functionality of the code.
while (i.hasNext() && count < MAX_PAGES && !listOfPendingURLs.isEmpty()) {
String s = i.next();
if (!listOfVisitedURLs.contains(s) && !listOfPendingURLs.contains(s)) {
listOfPendingURLs.add(s);
}
}
In this revised code, lines 20 and 28 have been deleted, and an additional condition !listOfPendingURLs.contains(s) has been added to the if statement in line 25. This condition ensures that URLs that have already been added to the listOfPendingURLs are not added again.
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Which data transmission rate is defined by the IEEE 802.11b wireless standard?
The data transmission rate defined by the IEEE 802.11b wireless standard, also known as Wi-Fi or WLAN (Wireless Local Area Network), ranges from 1 to 11 Mbps (megabits per second).
This standard operates in the 2.4 GHz frequency band and utilizes Direct Sequence Spread Spectrum (DSSS) modulation technique for improved reliability and signal strength. Introduced in 1999, the 802.11b standard marked a significant advancement in wireless networking technology, allowing for increased data transfer speeds and broader coverage areas compared to its predecessor, the original IEEE 802.11 standard.
Although 802.11b provided notable improvements, it is now considered outdated in comparison to newer Wi-Fi standards such as 802.11a, 802.11g, 802.11n, and 802.11ac, which offer higher data transmission rates and operate in both the 2.4 GHz and 5 GHz frequency bands. These advancements enable greater network performance and capacity, facilitating the growth of modern wireless communication applications.
To summarize, the IEEE 802.11b wireless standard supports data transmission rates between 1 and 11 Mbps and operates in the 2.4 GHz frequency band. Despite its historical significance in the development of wireless networking, the 802.11b standard has been surpassed by more advanced Wi-Fi standards that provide faster data transfer speeds and improved network capabilities.
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Systems analysts use a ____ to graphically represent company operations and information needs.
a. JAD
b. Scrum
c. RAD
d. business process model
Systems analysts use a "business process model" to graphically represent company operations and information needs.
A business process model is a graphical representation of a business process, showing the flow of activities, information, and resources required to complete a specific business function or task. The model typically includes symbols and notation to represent different types of activities, such as tasks, decisions, and inputs and outputs.The purpose of a business process model is to help systems analysts and other stakeholders understand and analyze the current state of business operations, identify areas for improvement, and design and implement new or modified systems to support business goals and objectives.
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