Which ports on the Aruba Switch provide Power over Ethernet (PoE+)?
Please select an answer
All ports provide PoE
Only the first 4 ports of either switch
Only the last 4 ports of switch #1
None of these answers are correct

A key element of multidimensional databases is their ability to support Online Analytical Processing (OLAP) queries. OLAP is a computing approach that facilitates the efficient retrieval and analysis of large amounts of data, making it possible to combine data, drill down to specific details, or slice and dice the data to view it from different perspectives. These databases store data in a multidimensional structure, allowing for complex analytical and ad-hoc queries with rapid execution time. This structure significantly enhances the performance of data analysis compared to traditional relational databases.

OLAP queries enable users to explore data interactively and uncover hidden patterns or trends, leading to better decision-making and improved business intelligence. With OLAP, users can analyze data from various dimensions, such as time, geography, or product, enabling them to gain deeper insights and make more informed decisions. In summary, the key element of multidimensional databases that supports OLAP queries plays a crucial role in enhancing data analysis capabilities and providing valuable insights for businesses.

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The TTL (Time to Live) field in a packet ensures that misaddressed packets will not circulate endlessly.

The TTL field is present in the packet header and is used to limit the lifespan of a packet in a network. When a packet is transmitted, its TTL value is initially set by the sender. As the packet traverses through routers in the network, the TTL value is decremented by 1 at each hop. If the TTL reaches 0 before the packet reaches its destination, it is discarded by the router. This prevents misaddressed or undeliverable packets from circulating indefinitely and consuming network resources.

In summary, the TTL field in a packet's header plays a crucial role in preventing endless circulation of misaddressed packets by limiting their lifespan within the network.

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The ________ field in a packet ensures that misaddressed packets will not circulate endlessly.

data header

checksum

protocol

TTL

The statement is generally true. A backdoor is a type of malware that allows unauthorized access to a system by bypassing security measures.\

It can be designed to act like a device driver, which is a type of software that communicates with hardware devices and provides a standard interface for accessing them. By positioning itself between the kernel and the hardware, the backdoor can intercept and manipulate data as it passes through the system, allowing it to perform malicious actions such as stealing data, executing commands, or modifying system settings. However, it's worth noting that not all backdoors act as device drivers, and there are other ways that backdoors can be implemented in a system.

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Rearranging the data on the hard drive so that all the parts of a file are stored in contiguous (adjoining) locations is called defragmentation. When files are saved or deleted, they are often split into pieces and stored in different locations on the hard drive.

When files are created, modified, and deleted, the data on the hard drive can become fragmented, which means the parts of the file are scattered across different areas of the disk. Defragmentation reorganizes the fragmented data so that it can be accessed more quickly and efficiently. This can improve the overall performance of the system, particularly for applications that access large files or perform a lot of disk I/O. There are a few different methods of defragmentation, including scheduled automatic defragmentation, manual defragmentation, and boot-time defragmentation.

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The next step in the troubleshooting process for the network administrator is to implement a solution or change.

After researching the issue and backing up the system, the network administrator should have a better understanding of the problem and possible solutions. They should then select the most appropriate solution and implement it, taking care to document any changes made. This involves narrowing down the potential causes of the issue by testing different components and configurations of the system.

In the troubleshooting process, after researching and backing up the system, the network administrator should proceed with implementing a solution or change to resolve the third-party application problem.

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The Notification payload contains either error or status information associated with this SA or this SA negotiation.

This payload contains either error or status information associated with the Security Association (SA) or the SA negotiation process. To provide a more detailed explanation, the Notification Payload is used to convey information about the status of an SA, errors in the SA negotiation process, or other error conditions that may arise during the use of an SA. It is important to note that the Notification Payload is only used to report errors or status information and does not carry any data traffic.

The Notification Payload is an essential component of the IKE protocol that provides valuable feedback on the status and errors associated with SA negotiation.

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The Average Queue Length at a service counter in a Post Office with 1 server and 1 queue operating on a First In, First Out (FIFO) basis depends on two key factors: arrival rate (λ) and service rate (µ).

The arrival rate represents the average number of customers arriving per unit of time, while the service rate indicates the average number of customers the server can handle per unit of time. To calculate the Average Queue Length (Lq), we use the following formula: Lq = (λ^2) / (µ * (µ - λ)) Please note that this formula is applicable when the system is stable, which means the arrival rate is less than the service rate (λ < µ). If the arrival rate is greater than or equal to the service rate, the queue would grow indefinitely, and an average queue length could not be determined. In summary, to find the Average Queue Length at the service counter with 1 server and 1 queue using FIFO, you need to know the arrival rate and service rate. Once you have these values, you can apply the formula provided above to obtain the desired result.

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If an Internet Addressing protocol used 8 bits to encode a single address, there would be a total of 2^8 or 256 possible unique addresses. However, some of these addresses would be reserved for specific purposes, such as network and broadcast addresses.

This means that the number of devices that could have their own unique address would be slightly less than 256.

In practice, an Internet Addressing protocol using only 8 bits for a single address would not be sufficient to accommodate the large number of devices that are now connected to the internet. The current standard for IP addresses is IPv4, which uses 32 bits for each address, allowing for a total of approximately 4.3 billion unique addresses. However, even this number has been exhausted in some regions of the world, leading to the adoption of IPv6, which uses 128 bits for each address and can accommodate a practically unlimited number of unique addresses.

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SYNACK message A message indicating that the sending side is initiating the protocol to terminate a connection. The correct answer is B.

The TCP connection management message descriptions with the corresponding message names. The explanation is that there are five different messages involved in TCP connection management, including SYN, SYNACK, FIN, FINACK, and RESET. This is a long answer that covers each message and its function in TCP connection management.

In the process of establishing a TCP connection, the message from the server to the client that acknowledges the receipt of a SYN message and indicates the willingness of the server to establish a connection with the client is the SYNACK message.

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Based on the AICPA Trust Services Principles Privacy Framework, the correct answer is A. Redundant data should be eliminated from the database. The other options, B and C, are indeed recommended practices for maintaining online privacy.

Each of the following options relates to online privacy practices recommended by the AICPA Trust Services Principles Privacy Framework, except for one. Option A suggests that redundant data should be eliminated from the database to prevent any unwanted exposure of private information. Option B indicates that customers should be informed about privacy policies, while option C states that private information should not be disclosed to third parties without customer consent. On the other hand, option D suggests that all of the above practices are recommended by the AICPA Trust Services Principles Privacy Framework.

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DML triggers can be used to produce automatic responses if data have been altered. SQL code and DDL triggers may also be used, but they are not specifically designed for monitoring and responding to changes in data.

Mirroring is a data replication technology that involves copying data from one server to another without the use of triggers. It ensures data redundancy by maintaining an identical copy of the data on multiple servers, providing a failover mechanism in case of server failure. Mirroring is commonly used for high availability and disaster recovery purposes in database systems.

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A(n) Advanced Persistent Threat (APT) is a highly targeted, sophisticated attack tailored to a specific organization, usually to gain access to sensitive information.

These attacks are often carried out by skilled and well-funded threat actors, such as nation-state actors, organized crime groups, or corporate espionage agents. They are designed to be stealthy and persistent, infiltrating the target's networks and remaining undetected for an extended period. APT attackers conduct extensive reconnaissance to gather intelligence about the target organization, identifying vulnerabilities in its systems, processes, and personnel.

They use this information to craft customized attack vectors that exploit these weaknesses, allowing them to bypass security measures and infiltrate the organization's network. Once inside, APT actors establish a foothold in the network, using techniques such as lateral movement, privilege escalation, and credential theft to gain access to sensitive information. They may also install backdoors or other malicious tools to maintain access and monitor the organization's activities, gathering valuable intelligence or exfiltrating data.

Defending against APT attacks requires a comprehensive and layered approach to cybersecurity, incorporating threat intelligence, strong security policies, and advanced detection and response capabilities. Organizations must invest in continuous monitoring, timely patch management, and employee education to minimize the risk of falling victim to an APT attack.

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SNMP uses a hierarchical structure of objects to collect information about a managed device. This structure, similar to a database, is called the Management Information Base (MIB).

The MIB is a database that organizes information about network devices in a tree-like structure, with each branch representing a different aspect of the device. Each object in the MIB is identified by an object identifier (OID) and has a specific value associated with it. The MIB is used by SNMP to manage network devices by providing a standard way of organizing and accessing information about those devices. SNMP uses the MIB to retrieve and set values of managed objects on the device, as well as to receive notifications from the device when certain events occur.

The MIB contains a set of standard objects that are defined by the Internet Engineering Task Force (IETF) and a set of enterprise-specific objects that are defined by individual vendors. The standard objects cover a wide range of network management functions, such as interface statistics, system performance, and network topology.

In summary, SNMP uses a hierarchical structure of objects called the Management Information Base (MIB) to collect information about a managed device. The MIB organizes information about network devices in a tree-like structure, with each branch representing a different aspect of the device, and provides a standard way of organizing and accessing information about those devices.

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In the given scenario, a bridge would be the best choice of connectivity device for connecting the two networks. A bridge is a network device that operates at the data link layer of the OSI model, and is used to connect two separate network segments.

Bridges can be used to connect networks that use different physical layer technologies, such as Ethernet and token ring. They work by examining the source and destination MAC addresses of each incoming frame, and selectively forwarding frames between the two network segments based on the MAC address.

Because most of the traffic will be localized within each network, a bridge is an appropriate choice because it reduces the amount of unnecessary traffic crossing between networks. This can help to improve overall network performance and reduce network congestion.

In addition, since both networks are using the TCP/IP protocol suite, a bridge can be used to selectively forward TCP/IP packets between the two networks, allowing devices on each network to communicate with each other as if they were on the same network.

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When facing a missing DLL error message during Windows startup, there are a couple of tools or methods that can be used to solve the problem.

Firstly, you can try using the System File Checker (SFC) tool. This tool is built into Windows and scans for missing or corrupted system files, including DLL files. To use the SFC tool, open the Command Prompt as an administrator and type "sfc /scannow" without the quotes, then press Enter. The SFC tool will scan for missing DLL files and try to repair them.
Secondly, you can also try using a third-party DLL fixer tool. These tools are designed specifically to find and repair missing or corrupted DLL files. Some popular third-party DLL fixer tools include DLL-files.com Client, Glarysoft Registry Repair, and Auslogics Registry Cleaner. These tools can scan your system for missing DLL files and automatically download and install them for you.
In summary, when facing a missing DLL error message during Windows startup, you can try using the System File Checker tool or a third-party DLL fixer tool to solve the problem.

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The countermeasure that protects individuals from becoming victims of credential stuffing attacks is to use unique user names and passwords at each website that requires a login.

Credential stuffing is a type of cyberattack where attackers use stolen username and password combinations from one website to gain unauthorized access to accounts on another website. The attackers use automated tools to try many combinations of stolen credentials until they find the ones that work. By using unique usernames and passwords at each website, users can protect themselves from credential stuffing attacks.

Additionally, users can enable multi-factor authentication (MFA) which adds an extra layer of security to their accounts. MFA requires users to provide a second factor, such as a fingerprint or a one-time code, in addition to their username and password.

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In order to isolate IP phone VoIP traffic from regular TCP/IP network traffic for security and performance reasons, one can utilize a network protocol known as VLAN (Virtual Local Area Network).

VLAN is a network protocol that allows for the creation of logical networks within a physical network, enabling the segregation of different types of traffic for better network management and security. By configuring VLANs, VoIP traffic can be separated from regular TCP/IP traffic, creating a dedicated virtual network for IP phone communication. This means that all the VoIP traffic will be transmitted within the VLAN, and regular network traffic will be kept separate, preventing any interference or congestion that could potentially affect call quality.

VLANs also offer a level of security, as they can be used to create logical boundaries within the network, effectively isolating different types of traffic and preventing unauthorized access. In addition, VLANs can help to reduce the risk of network attacks, as any security breaches will be confined within the VLAN, and not spread to other parts of the network.

In summary, using VLANs to isolate IP phone VoIP traffic from regular TCP/IP network traffic is a reliable and efficient solution that provides improved network performance and security.

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The new version of the factorial procedure (fact n) can be implemented using a helper with no parameters that modifies an accumulated value via destructive assignment.

In this approach, we start by defining a helper function that takes two arguments, the current value of n and the accumulated factorial value. Inside the helper function, we check if n is less than or equal to 1, if so, we return the accumulated factorial value.

Otherwise, we use destructive assignment to update the accumulated factorial value by multiplying it with the current value of n, and recursively call the helper function with the decremented value of n and the updated accumulated factorial value.

Finally, we call the helper function with the initial value of n and 1 as the initial accumulated factorial value to get the final result. This approach saves memory and improves performance by eliminating the need for creating a new stack frame for each recursive call.

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One fact-finding technique that can be used for collecting information in face-to-face, phone, e-mail, or instant-messaging discussions is: interviewing.

An interview is a method of gathering information by asking questions and receiving responses from the person being interviewed. It is a useful technique for collecting both quantitative and qualitative data.
In a face-to-face interview, the interviewer and interviewee are in the same physical space, which allows for a more personal and interactive conversation.

Phone interviews are similar but lack the visual cues that can be observed in a face-to-face interview. E-mail and instant-messaging interviews are often conducted asynchronously, with questions and responses exchanged over a longer period of time.
The types of questions asked during an interview can range from closed-ended questions, which require a simple yes or no answer, to open-ended questions, which encourage the interviewee to provide more detailed and thoughtful responses.

Interviews can also be structured, with a set of predetermined questions, or unstructured, allowing for more flexibility in the conversation.
One of the advantages of interviewing as a fact-finding technique is that it allows the interviewer to probe deeper into the responses provided by the interviewee.

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This code initializes the SysTick timer with the correct interval to generate interrupts every 200ms. In the SysTick_Handler function, the Red LED on P1.0 is toggled when an interrupt occurs.

.Here's the code that includes the terms you mentioned:

```c
#include

void SysTick_Handler(void) {
   GPIO_toggleOutputOnPin(GPIO_PORT_P1, GPIO_PIN0); // Toggle the Red LED on P1.0
}

int main(void) {
   // Stop watchdog timer
   WDT_A_hold(WDT_A_BASE);

   // Set P1.0 to output direction
   GPIO_setAsOutputPin(GPIO_PORT_P1, GPIO_PIN0);

   // Set the SysTick timer with the appropriate interval for 200ms
   uint32_t clockFreq = 20000; // 20kHz
   uint32_t ticks = (clockFreq / 5); // 200ms = 1/5 second
   SysTick_setPeriod(ticks);
   SysTick_enableModule();
   SysTick_enableInterrupt();

   // Enable global interrupts
   __enable_irq();

   while (1) {
       // Do nothing, waiting for interrupts
   }

   return 0;
}
```

This code initializes the SysTick timer with the correct interval to generate interrupts every 200ms. In the SysTick_Handler function, the Red LED on P1.0 is toggled when an interrupt occurs.

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A Metropolitan Area Network (MAN) is a high-speed network that connects local area networks in a metropolitan area, such as a city or town, and handles the bulk of communications activity across that region. The high-speed network that connects local area networks in a metropolitan area, such as a city or town, and handles the bulk of communications activity across that region is called a Metropolitan Area Network (MAN).

A MAN typically covers a larger area than a LAN but a smaller area than a wide area network (WAN). It can be a combination of various technologies like fiber-optic, microwave, and leased lines to provide high-speed connectivity within the metropolitan area. MANs are often used by businesses and organizations that require fast and reliable communication between their different locations or branches within a city or town. In summary, a Metropolitan Area Network is a high-speed network that connects local area networks in a metropolitan area, and it is designed to handle the bulk of communications activity across that region.

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Programming is the process of creating software, applications, and systems that can perform specific tasks or solve specific problems. It involves using various programming languages, tools, and techniques to write code that can be executed by a computer.

Two statements about programming that are true include the fact that the purpose of a program will determine what kinds of algorithms, helper methods, and strategies the programmer will need to use. This means that a programmer must carefully consider the objectives of the program they are writing and choose the most appropriate techniques to achieve those goals. For example, if a program is designed to process large amounts of data, the programmer may need to use more advanced algorithms and data structures to ensure the program runs efficiently.

Another statement that is true about programming is that a program created for a small group of people might be useful for a different purpose for large groups of people. This is because the needs and expectations of different groups of users can vary significantly. A program that works well for a small group of users may not be scalable enough to handle the needs of a larger group. Therefore, programmers must consider the potential user base of their programs and ensure that they are designed to meet the needs of all potential users. This may involve conducting extensive user research, testing, and iteration to refine the program's design and functionality.

Here are two true statements about programming that incorporate your mentioned terms:

1. The purpose of a program directly influences the choice of algorithms, helper methods, and strategies employed by the programmer. When designing a program, it's essential to consider its primary objectives and target audience. This will guide the programmer in selecting the most appropriate techniques and tools to achieve the desired outcome effectively and efficiently.

2. A program initially created for a small group of people may be repurposed or adapted to serve a larger audience or fulfill a different function. To achieve this, the programmer might need to modify the algorithms, helper methods, or strategies used in the initial program, ensuring that it scales well and meets the needs of a more diverse or broader user base.

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The symmetric-key encryption method uses the same key for both senders and receivers for encryption and decryption.Option A is correct.

Symmetric-key encryption is a popular encryption method that uses the same secret key for both encryption and decryption of data. It is a fast and efficient encryption method and is commonly used in situations where both parties can securely exchange the secret key. It solves the problem of key distribution and key management as the same key is used by both the sender and the receiver.

Option B is also correct as symmetric-key encryption solves the problem of key distribution and key management.

Option C is not correct as symmetric-key encryption is fast and efficient. It can be used to encrypt large data sets without any significant performance issues.

Therefore, the correct answer is A and B.

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The code below assumes you have three tables: 'employees', 'projects', and 'project_assignments' for the employee details, project details, and the assignments between them, respectively. The query retrieves all employee details who are assigned to the Evergreen project by joining the necessary tables and filtering based on the project name.

To list all employees working on the Evergreen project using the project name, you can use the following SQL code:
```sql
SELECT employees.*
FROM employees
JOIN project_assignments ON employees.employee_id = project_assignments.employee_id
JOIN projects ON project_assignments.project_id = projects.project_id
WHERE projects.project_name = 'Evergreen';
```

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This is known as dumpster diving, which is a common method used by cybercriminals to access valuable data that may have been discarded by individuals or businesses.

It is a form of social engineering where attackers sift through trash bins, looking for sensitive information such as passwords, account numbers, or other personal data that can be used to launch a security attack. To prevent such attacks, it is important to properly dispose of any confidential documents and to ensure that sensitive data is securely stored or destroyed. In the context of computers, a site can refer to a location on the internet or a network where information is hosted or accessed. A website, for example, is a collection of related web pages and multimedia content that are accessed through a single domain name or IP address. Sites can also refer to physical locations within a network, such as a specific server or workstation. In enterprise environments, sites are often used to organize network resources and manage traffic between different locations or departments.

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Wikis indeed enable users to create and edit web content collaboratively. The format and structure of the content can be determined by the owner of the wiki, who can set permissions and guidelines for contributors.

As a result, wikis are often used for knowledge sharing and documentation within organizations, as well as for open-source projects and community-driven initiatives. Typically, wikis have a flexible and dynamic structure that allows for the addition and modification of content over time, making them a useful tool for ongoing collaboration and information management.

The answer is True. Wikis indeed permit users to create and share web content within a framework set by the wiki owner, enabling collaboration and organization of information within a community.

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The Python script then loops through all numbers less than 10 and finds the divisors of each one.

A Python script that accomplishes this task:

python

Copy code

num = int(input("Enter a number: ")) # ask the user for a number

for i in range(1, num): # loop through all numbers less than the given number

   divisors = [] # create an empty list to store divisors

   for j in range(1, i+1): # loop through all numbers less than or equal to the current number

       if i % j == 0: # check if j is a divisor of i

           divisors.append(j) # add j to the list of divisors

   print(f"Divisors of {i}: {divisors}") # print out the list of divisors

Here's an example of how this script might run:

less

Copy code

Enter a number: 10

Divisors of 1: [1]

Divisors of 2: [1, 2]

Divisors of 3: [1, 3]

Divisors of 4: [1, 2, 4]

Divisors of 5: [1, 5]

Divisors of 6: [1, 2, 3, 6]

Divisors of 7: [1, 7]

Divisors of 8: [1, 2, 4, 8]

Divisors of 9: [1, 3, 9]

In this example, the user enters 10 as the number. The script then loops through all numbers less than 10 and finds the divisors of each one. The divisors of each number are printed out in a list, as shown in the example output above.

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Any system user can create a cron entry that will result in a daemon executing a program on a routine basis.

A cron entry is a configuration setting that allows system users to schedule the execution of programs or scripts at specific intervals or on specific dates. The cron daemon, a background process that runs continuously, checks the cron entries regularly and initiates the execution of the specified programs or scripts according to the defined schedule.

This feature enables users to automate routine tasks, such as backups, system maintenance, or periodic data processing. By creating a cron entry, a user can specify the desired timing and frequency for the program execution, allowing the daemon to handle the automated task execution on their behalf.

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Natasha should use "git add" with specific file names instead of "git add ."

Using "git add ." will add all 25 files in the working directory to the index. Instead, Natasha should use "git add" to specify the exact 22 files she wants to add.

To efficiently add only the desired files, Natasha can either specify each file individually, like "git add file1 file2 file3," or use wildcards and patterns if the files share common characteristics (e.g., "git add *.txt" to add all text files). This way, she can ensure that only the 22 files she wants to add are included in the index.

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After the code executes, the variable s_string will contain the substring '1357' as it is the first four characters of the original string '1357 Country Ln.'.

The code is using slicing to extract a substring from the original string. The syntax used for slicing is [start:stop:step], where start is the starting index of the slice, stop is the ending index (exclusive) of the slice, and step is the step size between elements in the slice.

In this case, the start index is not specified, which means that it defaults to 0 (the beginning of the string). The stop index is 4, which means that the slice includes all characters up to, but not including, the fourth character (i.e., '1357'). The step size is also not specified, which means that it defaults to 1 (every character in the slice is included).

Therefore, the resulting substring '1357' is assigned to the variable s_string.

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