the cpu inside your computer has an operating frequency of 421.013hertz the transistors in your cpu have a capacitance of 0.218 farads your computer has a power supply of 2.302 volts the transistors in your cpu are imperfect have a leakage current of 0.036 amps how much energy does your cpu consume with 1 hour's use? answer in joules to 3 decimal places.

In Python, an event handler that handles an event like a button being clicked is known as a callback function or simply a callback.

A callback is a function that is passed as an argument to another function and is called when a certain event occurs. In the case of GUI programming, a callback is often used as an event handler to respond to user actions such as clicking a button or selecting a menu item.

A callback function is defined to handle a specific event, such as a button click. 2.The callback function is then registered with the event source, such as the button. 3. When the event occurs, the event source triggers the callback function.

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Reference counting is an eager approach to solve single size cell heap management issues.

In reference counting, a counter is maintained for each object that keeps track of the number of pointers that are pointing to that object. When a new pointer to the object is created, the counter is incremented, and when a pointer is deleted, the counter is decremented. When the counter reaches zero, the object is deallocated.

This approach is considered eager because deallocation is done immediately when the counter reaches zero, rather than waiting for the garbage collector to run at some later point in time. However, it can also be seen as lazy in the sense that deallocation is only done when necessary and not preemptively.

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A router entry can be placed in a routing table through static routing (manually configured), dynamic routing (learned from other routers), and default routing (for forwarding packets to a default gateway).

1. Directly Connected Networks: When a router interface is configured with an IP address and subnet mask, it automatically creates a route to that network in the routing table. This is known as a directly connected network route.

2. Static Routes: A network administrator can manually add a route to the routing table by configuring a static route. This is useful when there is no dynamic routing protocol available or when a specific route needs to be prioritized over other routes.

3. Dynamic Routing Protocols: A router can learn routes from other routers using dynamic routing protocols such as OSPF, BGP, or RIP. These protocols allow routers to share information about the networks they are connected to, and the best path to reach those networks is automatically determined and added to the routing table.

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To allow more channels that do not interfere with each other, the network administrator should choose the 5 GHz frequency.

This frequency is less crowded than the 2.4 GHz frequency and supports more channels. We discuss about the best frequency or protocol for a network administrator to change their wireless network to allow more channels that do not interfere with each other. So, the best option among the given choices would be 5 GHz. To reiterate, the network administrator should choose the 5 GHz frequency to reduce interference and allow more channels. This frequency range provides a higher number of non-overlapping channels compared to the 2.4 GHz range used by 802.11b and 802.11g protocols, resulting in less interference and better network performance.

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The first thing you should check when a computer cannot get on the internet is the A. NIC driver.

NIC Driver could be potential causes for a computer's inability to connect to the internet, and the specific cause would depend on the symptoms and context of the issue.

If the computer is unable to connect to the internet or local network, the first thing to check is the network connection. This includes checking the physical connections such as the patch cable or wireless adapter, as well as the network settings such as the IP address, subnet mask, gateway, and DNS server. In this case, checking the patch cable would be a good first step to ensure that the physical connection is properly established.

The correct option is A.

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The SSID (Service Set Identifier) is a unique identifier assigned to a wireless network, which enables wireless devices to identify and connect to the network. The SSID is typically broadcast by wireless access points (APs), allowing wireless devices to discover and connect to the network.

A network administrator can take several steps to protect a network from hackers who might have learned the SSID:Disable SSID broadcast: By disabling SSID broadcast, the wireless network will not be visible to wireless devices that do not know the SSID. This can make it more difficult for attackers to discover the network.Enable WPA2 encryption: By enabling WPA2 (Wi-Fi Protected Access II) encryption, the wireless network traffic is encrypted, making it more difficult for attackers to intercept and eavesdrop on the network traffic.Use a strong password: By using a strong password for the wireless network, it can make it more difficult for attackers to gain access to the network even if they know the SSID.Use MAC address filtering: By using MAC (Media Access Control) address filtering, only devices with authorized MAC addresses can connect to the network, making it more difficult for attackers to connect to the network.

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Its common use of reference types in C++ is in function parameter passing.

In C++, a reference type is a data type that provides an alias to an already existing object. It is essentially a variable that refers to the memory address of another variable. In other words, a reference type allows you to access the value of an object indirectly through a reference variable. One of the most common uses of reference types in C++ is in function parameter passing.

By passing a reference type as a parameter to a function, you can modify the original value of the object without actually copying it. This can be particularly useful for large data structures or objects that you do not want to copy unnecessarily. Another common use of reference types is in object-oriented programming, where they can be used to create more efficient and streamlined code. For example, a reference to an object can be used as a member variable of another object, making it possible to modify the referenced object without having to copy it.

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The remove operation returns option c) the element that was removed.

In many programming languages and libraries, the remove operation is used to delete an element from a list or a collection. When this operation is performed, it typically returns the element that has been removed from the list. This allows the programmer to know exactly which element was removed, and if needed, use it for further operations or record-keeping. The other options, such as returning an int, boolean value, pointer, or none of the above, do not accurately represent the typical behavior of the remove operation.

The correct answer is that the remove operation returns the element that was removed from the list.

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The correct option for blocking all incoming and outgoing OpenSSH connections without providing a blocking message is B. sudo ufw drop 22/tcp.

Option A (deny) would block the connection but provide a blocking message, whereas option C (reject) would block the connection and send a rejection message. Option D (accept) would allow the connection, and option E is not a valid UFW command. The "drop" command in option B silently drops the packets without providing any feedback, making it the correct choice for the given requirement.

To block all incoming and outgoing OpenSSH connections without providing a blocking message, you should use the command "sudo ufw drop 22/tcp".

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(a) The slope of the regression line can be found in the model summary table, which gives the estimate for the "beauty" variable as 0.0322. Therefore, the slope of the relationship between teaching evaluation and beauty is 0.0322.

(b) To determine if there is convincing evidence that the slope of the relationship between teaching evaluation and beauty is positive, we can look at the t-value for the estimate of the "beauty" variable in the model summary table. The t-value is 4.13, which indicates that the estimate for the "beauty" variable is statistically significant at the 0.05 level.

This means that the relationship between teaching evaluation and beauty is unlikely to be due to chance. Additionally, the intercept of the regression line is significantly greater than 0 (t-value = 157.21), which suggests that even instructors with average beauty scores receive higher teaching evaluation scores on average.

Therefore, the data provide convincing evidence that there is a positive relationship between teaching evaluation and beauty, even after controlling for other factors. However, it is important to note that the use of beauty as a predictor of teaching effectiveness is controversial and may be influenced by factors beyond physical appearance.

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The option that accurately describes the advantages of high-level programming languages over low-level programming languages is: "high-level languages use natural language words and are easier to learn." (option d).

High-level programming languages are designed to provide a high level of abstraction from the hardware, allowing programmers to write programs that are more concise, easier to read, and less error-prone. They use natural language words and are closer to human language, making it easier for programmers to understand and write code. In contrast, low-level programming languages are closer to the machine language and are harder to read, write, and understand. They require a deeper understanding of the hardware and are less portable between different architectures.

Option d is answer.

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The following statements characterize functions in computer programming:

d) Functions allow a programmer to teach a computer how to do an action one time, then repeat that action without having to write the sequence of commands again.

e) Functions allow a programmer to define new commands to a computer language.

Functions are a fundamental concept in computer programming that enable the creation of reusable code blocks that perform specific tasks. When a function is defined, it can be called from other parts of the program to perform the task it was designed for. This allows the programmer to avoid repeating the same sequence of commands in multiple places, making the code more modular and easier to maintain.

Functions are not required to use names or algorithms that are already known to the programming language. In fact, one of the primary benefits of functions is that they allow the programmer to define their own names and algorithms that are specific to the problem they are trying to solve. Functions do not add new words to a computer language; instead, they allow the programmer to define new commands that can be used within their own programs.

In summary, functions in computer programming allow programmers to teach a computer how to perform a specific action and define new commands that can be used within their programs. They do not require the use of names or algorithms already known to the programming language, nor do they add new words to the language.

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A detailed, logical representation of the entities, associations, and data elements for an organization or business area defines data entities in the business environment, relationships or associations among those entities, and attributes or properties of both the entities and their relationships.

The detailed, logical representation of the entities, associations, and data elements for an organization or business area is commonly referred to as a data model. A data model defines the following components:

1. Data entities in the business environment: These are the main objects or concepts in the organization, such as customers, products, or orders. They represent real-world entities and are the primary focus of the data model.

2. Relationships or associations among those entities: These define how the data entities relate to each other, such as a customer placing an order or a product being part of a specific category. Relationships help establish the connections between entities and provide context for the data model.

3. Attributes or properties of both the entities and their relationships: These are the data elements that describe the characteristics or properties of the entities and their relationships, such as a customer's name, an order's total amount, or the date a product was added to a category. Attributes provide detailed information about the entities and relationships in the data model.

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ISO/IEC 27001 is an internationally recognized standard for Information Security Management Systems (ISMS) developed by the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC).

It provides a framework for organizations to manage and protect their information assets effectively and securely.
The primary goal of ISO/IEC 27001 is to help organizations establish, maintain, and continually improve their ISMS. The standard sets out requirements for implementing a systematic approach to managing sensitive company information, which includes the following key components:
1. Risk assessment: Identifying potential risks to information assets and evaluating their potential impact.
2. Risk treatment: Implementing appropriate controls to mitigate or manage identified risks.
3. Documentation: Documenting the ISMS policies, procedures, and controls to ensure proper implementation and consistency.
4. Monitoring and review: Regularly monitoring and reviewing the effectiveness of the ISMS, including its controls and risk treatment measures.
5. Continuous improvement: Identifying opportunities to improve the ISMS and making necessary adjustments to enhance its effectiveness.
By implementing ISO/IEC 27001, organizations can demonstrate to their stakeholders that they have taken necessary steps to protect sensitive information, comply with relevant regulations, and minimize the risk of data breaches or other security incidents.

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To determine the answer to this question, we must first convert each hexadecimal number from sign-magnitude format to its equivalent in two's complement format, which is the standard format for signed integers in computing. Hence, hexadecimal value of 5ed4 2 07a4 is a9 2f.

To convert a number from sign-magnitude to two's complement, we follow these steps:
1. If the sign bit is 1 (indicating a negative number), we flip all the bits and add 1.
2. If the sign bit is 0 (indicating a positive number), we simply convert the number to binary.

For 5ed4, the sign bit is 1, so we flip all the bits (a9 2b) and add 1 to get a9 2c.
For 2, the sign bit is 0, so we convert it to binary (0000 0010).
For 07a4, the sign bit is 0, so we convert it to binary (0000 0111 1010 0100).

Now we add the three numbers together in two's complement format:
a9 2c (negative) + 0000 0010 (positive) + 0000 0111 1010 0100 (positive) = a9 2f

Finally, we convert the result back to sign-magnitude format by following the reverse steps:
1. If the result is negative (sign bit is 1), we flip all the bits except the sign bit (56 d0).
2. If the result is positive (sign bit is 0), we simply convert the number to hexadecimal (a9 2f).

Therefore, the answer to the question is "a9 2f."

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Passing a structure as a constant reference parameter to a function guarantees not to result in changes to the structure's members.

Passing of structure to the function can be done in two ways: By passing all the elements to the function individually. By passing the entire structure to the function. In this article, entire structure is passed to the function. This can be done using call by reference as well as call by value method. Examples 1: Using Call By Value Method.

A structure is a user-defined data type in C/C++. A structure creates a data type that can be used to group items of possibly different types into a single type.

Passing of structure to the function can be done in two ways:

By passing all the elements to the function individually.

By passing the entire structure to the function.

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A byte stream is a sequence of bytes that can represent both character data and binary data. It can be used for both input and output (I/O) operations. Therefore, options 2 and 3 can be considered as characterizing byte streams.

Option 1, "only machine readable," is not entirely accurate as byte streams can be read and understood by humans as well, albeit not as easily as by computers. In fact, many file formats, including text files, image files, and audio files, are stored as byte streams.Option 4, "only efficient for a computer," is also not entirely accurate. While it is true that byte streams are optimized for computer processing, they can still be used and understood by humans. Additionally, byte streams can be compressed or encrypted, which can make them more efficient for transmission and storage.In summary, option 1 does not accurately characterize a byte stream. While byte streams are primarily designed for machine processing, they can still be read and understood by humans, and can be used for both character and binary data I/O operations.

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If you wanted to find a particular number in an array of 1 million integers which method would not work is binary search algorithm.

When dealing with unsorted arrays, the binary search algorithm is not reliable. Although highly efficient for sorted arrays, this commonly used search method follows a divide-and-conquer framework to quickly locate an element within logarithmic time complexity.

In the worst-case scenario, it requires at most log2(1,000,000) = 20 comparisons, which makes it a frequently sought out solution. That being said, the algorithm would fail if the array were not sorted, as its accuracy relies entirely on that particular presumption.

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To determine which IP address is on the same network as x (193.101.50.44/26), we need to understand what a network and IP address mean. An IP address is a unique numerical identifier assigned to each device connected to a network.

A network is a group of devices that are connected to each other and can communicate with each other. The /26 in the IP address x indicates that the first 26 bits of the IP address are the network address, and the remaining bits are the host address. Therefore, any device with an IP address that shares the same first 26 bits as x will be on the same network.

Looking at the options given, we can see that only 193.101.50.67/26 shares the same first 26 bits as x. Therefore, 193.101.50.67/26 is on the same network as x.

In summary, to determine which IP address is on the same network as x, we need to compare the first 26 bits of the IP address with those of x, as the /26 indicates that the first 26 bits are the network address. Any device with an IP address that shares the same first 26 bits as x is on the same network.

Given the IP address x: 193.101.50.44/26, we first need to identify the network address and subnet mask to determine which other IP addresses are on the same network.

1. Calculate the subnet mask: The /26 notation indicates that the first 26 bits of the subnet mask are set to 1. In binary, this is 11111111.11111111.11111111.11000000, which is equivalent to the subnet mask 255.255.255.192.

2. Find the network address: To find the network address, perform a bitwise AND operation between the IP address and the subnet mask.
  IP address (x):      193.101.50.44   -> 11000001.01100101.00110010.00101100 (in binary)
  Subnet mask:         255.255.255.192 -> 11111111.11111111.11111111.11000000 (in binary)
  -----------------------------------   (Bitwise AND operation)
  Network address:     193.101.50.0    -> 11000001.01100101.00110010.00000000 (in binary)

Now, to determine which IP addresses belong to the same network as x, we need to perform the same calculation with the given IP addresses and see if their network addresses match x's network address.

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The focus of the list of responsibilities for database administrators is DBMS support and proper security measures. This includes ensuring the database management system (DBMS) functions efficiently and implementing security measures to protect the integrity and confidentiality of the data.

The focus of the list of responsibilities for database administrators typically includes proper security measures, design development, and DBMS (Database Management System) support.DBAs (Database Administrators) are responsible for ensuring the security and integrity of the database, designing and developing the database system, and providing support for the DBMS software and related tools. They may also be responsible for data backup and recovery, performance tuning, and monitoring and optimizing database performance.

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The answer provides instructions for creating the view and querying it, and discusses potential issues with updating the database through the view.

The paragraph provides instructions to create a view called SMALL_PROPERTY, which includes property ID, office number, bedrooms, floor, monthly rent, and owner number for properties with square footage less than 1,250 sq. ft.

It then asks to retrieve the office number, property ID, and monthly rent for properties in the SMALL_PROPERTY view with a monthly rent of $1150 or more.

The DBMS executes a query to return the requested data. Updating the database through this view may cause problems because it might violate constraints or update inconsistent data.

Therefore, it is recommended to update the base tables directly.

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On an information system project the team and users may participate in a facilitated session in which users of the software should articulate their preferences regarding how the software should work. this traditional method for requirements gathering is called Joint Application Improvement (JAD)

The conventional strategy for good gathering, in which the group and clients take an interest in a encouraged session to express their inclinations with respect to how the program ought to work, is called Joint Application Improvement (JAD).

Therefore, JAD may be a organized approach to gathering prerequisites that includes bringing together key partners in a workshop setting to examine and characterize the necessities for a framework.

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c. to neutralize competition with rivals. The education and computer firms are implementing a cooperative strategy to neutralize competition with rivals who have implemented a similar strategy. This partnership aims to create a competitive advantage by offering a unique product tailored for web development education.

Explanation:

The motive for the education and computer firms to implement a cooperative strategy could be (c) to neutralize competition with rivals. By partnering together, the education firm and the computer manufacturer can create a unique product - a laptop with a special keyboard and interface elements for web development education - that sets them apart from their competitors. This cooperative strategy allows them to differentiate their offering in the market and potentially attract more customers who are interested in web development education.

The mention of a competitor implementing a similar cooperative strategy to develop a smartphone interface compatible with educational software indicates that there is competition in the market. By joining forces, the education firm and the computer manufacturer can effectively neutralize this competition by creating a product that rivals cannot easily replicate or match. This can give them an advantage over their competitors and help them stay ahead in the market.

Additionally, by working together, the education firm and the computer manufacturer may also be able to share resources, expertise, and technology, which can lead to cost savings and efficiency gains. This cooperative strategy could also help them minimize their rivals' returns by offering a superior product that attracts customers and potentially takes market share away from their competitors.

In conclusion, the motive for the education and computer firms to implement a cooperative strategy is likely to neutralize competition with rivals and gain a competitive advantage in the market by creating a unique product that sets them apart from their competitors.

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True. SQL injection attacks do not typically exploit the lack of the rule of least-privilege, and attackers often try to escalate their privilege during the attack process.

It is important for system administrators and developers to implement proper security measures to prevent these types of attacks.

The following sentence best encapsulates the principle of least privilege: D. Users should only be granted the privileges necessary to do their tasks.

A security concept known as the principle of least privilege, also known as the principle of minimal privilege (least authority), entails providing an end user, software programme, or process with the least amount of access and permissions required for them to complete a task or action in a database.

End users should, in this case, have the fewest (minimum) privileges required to do their tasks in order to safeguard a database or network.

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The SQL command to obtain R n S (the intersection of relations R and S) is

SELECT * FROM R
INTERSECT
SELECT * FROM S;

The INTERSECT operator in SQL is used to combine the result sets of two SELECT statements, returning only the rows that are common to both.

In this case, we want to obtain the intersection of two relations, R and S. The command first selects all records from relation R and then selects all records from relation S.

By using the INTERSECT operator, only the records that are present in both R and S will be included in the final result set.

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The correct option is false means that virtual machines do not require customized operating system versions.

In fact, one of the benefits of using VMs is that they allow for flexibility in the choice of operating systems.

Virtualization software allows for the creation of a virtual environment that emulates the hardware of a physical machine.

The virtual machine can then run any OS that is compatible with the virtual hardware, including standard versions of Windows, Linux, or macOS.

The virtualization layer abstracts the underlying hardware from the OS, so there is no need for a customized version of the OS.

Therefore, the statement "Virtual Machines require customized operating system versions" is false.

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True. Technological and systems feasibility is an important aspect of project planning and evaluation. It refers to the assessment of whether a project is technically possible, given the current state of technology and the organization's capabilities.

The process of assessing technological and systems feasibility involves several steps:

1. Identifying the technological requirements: This includes understanding the specific technologies and systems needed to accomplish the project's objectives, such as software, hardware, networks, and other relevant tools.

2. Evaluating the organization's capabilities: This involves assessing the organization's current technological infrastructure, expertise, and resources. It helps determine if the organization has the necessary technical skills, equipment, and facilities to implement and support the project.

3. Identifying potential risks and challenges: This step involves identifying any potential technical risks or challenges that could hinder the project's success. These could include rapidly changing technology, the need for specialized expertise, or limitations in the organization's infrastructure.

4. Developing strategies to mitigate risks: After identifying the potential risks and challenges, it's essential to develop strategies to address them. This might include investing in new technology, training employees, or partnering with external experts.

5. Making a final decision: Based on the assessment of the technological and systems feasibility, the organization can determine whether the project is technically viable and make an informed decision about whether to proceed with the project.

In conclusion, it is true that technological and systems feasibility addresses the issues of technological capabilities, including the expertise and infrastructure needed to complete a project successfully. Assessing these factors is essential in determining whether a project is viable and worth pursuing.

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To provide a constructor for the mp3phone subclass that accepts three parameters: a string for the phone number and an integer followed by a boolean for the instance variables.

The mp3phone subclass has two instance variables - memorysize and playsaac - that need to be initialized through the constructor. Therefore, the constructor for mp3phone should accept three parameters: a string for the phone number (which is passed up to the phone constructor, together with the value true for the added-value boolean), an integer for the memory size, and a boolean for whether the phone can play aac-encoded audio files.

```
public class mp3phone extends phone {
 private int memorysize;
 private boolean playsaac;

 public mp3phone(String phoneNumber, int memorysize, boolean playsaac) {
   super(phoneNumber, true);
   this.memorysize = memorysize;
   this.playsaac = playsaac;
 }
}
```

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Virtual machines can communicate only with other virtual machines across a virtual network.

In a virtualized environment, each virtual machine is essentially a software-based representation of a physical machine. Virtual networks are used to connect these virtual machines and enable communication between them. These virtual networks can be configured in a variety of ways, including using virtual switches, routers, firewalls, and other networking components.Virtual networks provide a flexible and scalable way to connect virtual machines, regardless of their physical location, and allow for the creation of complex network topologies without the need for physical hardware.

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The two basic principles in computer forensics are to preserve evidence and document the investigation. These principles are essential for maintaining the integrity of the digital evidence and ensuring that it can be used effectively in legal proceedings or to address security incidents.

Computer forensics is the process of collecting, analyzing, and preserving digital evidence in a manner that maintains the integrity and reliability of the evidence for use in legal proceedings or investigations. To achieve this, computer forensic investigators follow strict procedures and guidelines to ensure the evidence is properly collected, analyzed, and preserved. The two basic principles of computer forensics, preservation of evidence and documentation of the investigation, are essential for establishing the chain of custody and admissibility of the evidence in court. Detecting and responding to security incidents, preventing further compromise, and allowing for remediation are important objectives in incident response, but they are not the two basic principles of computer forensics.

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