The result when the program is executed is (c) The program outputs 'Begin test', followed by 'hello5', followed by 'End test'.
In the given program, the function add() takes two parameters x and y and returns their sum. In the main code, the function add() is called with the arguments 'hello' and 5. Since the arguments are of different types (a string and an integer), the program performs a type coercion and concatenates the two values, resulting in the string 'hello5'.
This string is stored in the variable s. The program then prints 'Begin test', followed by the value of s, which is 'hello5', and then prints 'End test'. Hence, the output of the program is 'Begin test', followed by 'hello5', followed by 'End test'.
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What is stored in data after this runs?
vector data{1, 2, 3};
data.pop_back();
After the code runs, the vector 'data' will store the elements {1, 2}.
The code initializes the vector 'data' with the elements {1, 2, 3}. Then, the function pop_back() is called, which removes the last element from the vector. Therefore, after the function call, the element '3' is removed from the vector, leaving it with the elements {1, 2}. The modified vector is still stored in the variable 'data', and can be used in subsequent code.
So, after the code runs,vector data{1, 2, 3};data.pop_back(); the vector 'data' will store the elements {1, 2}.
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evaluate the use of trusted media access control (mac) addresses as one method of network security.
Answer:
Trusted Media Access Control (MAC) addresses are one method of network security that can be used to control access to a network by only allowing devices with known MAC addresses to connect. The MAC address is a unique identifier assigned to each network interface controller (NIC) on a device, which means that by only allowing known MAC addresses to connect, unauthorized devices are prevented from accessing the network.
While this method of network security can be effective, it does have some limitations. First, MAC addresses can be spoofed, which means that a device can be configured to present a different MAC address than its actual one. This makes it possible for an unauthorized device to bypass security measures and gain access to the network. Additionally, MAC addresses are only relevant within a single local network, which means that they do not provide security when devices are accessing the network remotely or over the internet.
Another limitation of using MAC addresses for network security is that managing the list of allowed MAC addresses can be time-consuming and complex, especially for larger networks with a high number of devices. It may also be challenging to ensure that the list of allowed MAC addresses is kept up-to-date, as devices may be added or removed from the network frequently.
In summary, while Trusted MAC addresses can be a useful method of network security, it should not be the sole method used, as it has some significant limitations. It is best used as part of a multi-layered approach to network security that includes other methods such as firewalls, intrusion detection and prevention systems, and authentication protocols.
TRUE/FALSE. A dedicated device cannot be used concurrently by several processes or threads.
The statement is false because a dedicated device can be used concurrently by several processes or threads, depending on the device's design and the implementation of access controls.
In computing systems, resources like devices can be shared among multiple processes or threads through techniques such as time-sharing, context switching, or parallel processing.
Operating systems often provide mechanisms for managing concurrent access to devices, ensuring that each process or thread has an opportunity to use the device while preventing conflicts and maintaining overall system performance.
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There are two ways to determine the amount of heat involved in a chemical change
There are two primary methods to determine the amount of heat involved in a chemical change: calorimetry and Hess's law.
Calorimetry involves conducting experiments in which the chemical change takes place within a controlled, insulated environment called a calorimeter.
By measuring the temperature change of a known amount of a substance (usually water) surrounding the reaction, you can calculate the heat absorbed or released using the formula
q=mcΔT,
where q is heat, m is mass, c is specific heat capacity, and ΔT is the temperature change.
Hess's law states that the overall enthalpy change in a chemical reaction is equal to the sum of the enthalpy changes of the individual steps.
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The web server is configured to not list the contents of this directory.
A web server is a software program that serves web pages to clients upon request. In order to maintain security and privacy, web servers are often configured to not list the contents of certain directories.
This means that when a client requests a directory that is not configured for listing, the server will not display the files or folders contained within that directory. This is done to prevent unauthorized access to sensitive data, such as configuration files or user data. While this configuration may be inconvenient for some users, it is an important security measure that helps to protect the integrity of the web server and the data it contains.
In summary, the web server is configured to not list the contents of this directory to ensure security and privacy.
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Which technology uses parity/strip
A) Deduplication
B) Compression
C) Erasure coding
Erasure coding is a technology that uses parity and striping to ensure data reliability and fault tolerance in storage systems. The correct answer is C) Erasure Coding.
It works by dividing data into fragments, encoding and expanding these fragments with redundant pieces of information, and then storing them across different disks or storage nodes. This method allows for the recovery of lost or corrupted data by using the remaining intact fragments and the parity data, which serves as an error-correction mechanism.
In comparison, deduplication (A) and compression (B) are both data reduction techniques aimed at saving storage space. Deduplication involves eliminating duplicate copies of data, while compression reduces the size of data by encoding it more efficiently. Neither of these technologies relies on parity or striping for their primary function. Hence, C is the correct option.
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In this image, the document includes fields for an address block and greeting line. Which feature are we most likely using?.
Based on the information provided, it is likely that we are using a mail merge feature. Mail merge is a tool used in word processing applications that allows users to create a single document and merge it with a data source to create personalized documents.
The fields for an address block and greeting line suggest that the document is intended to be sent to multiple recipients with different addresses and names. By using a mail merge feature, the user can input a list of recipients and their corresponding details into the data source and merge it with the document template. This saves time and effort compared to manually typing out each individual document. Overall, mail merge is a powerful feature that enables users to create professional-looking documents efficiently and effectively.
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Assume cell B1 contains the formula =C8*D5. How will this formula appear if it is copied to C2?
Answer:
=A1+A3+A4+A5 with value 100
IFRS are a global set of accounting standards; however, these standards are not yet utilized in any country. O True O False
False. IFRS used in 144+ countries for global accounting standardization.
Is IFRS utilized globally?False.
The statement is incorrect. International Financial Reporting Standards (IFRS) are in fact utilized in over 144 countries worldwide, including major economies such as the European Union, Australia, Canada, and Japan. IFRS are a global set of accounting standards developed and maintained by the International Accounting Standards Board (IASB) with the aim of providing a common financial reporting language that facilitates comparability between companies and countries.
The statement is incorrect.IFRS are utilized in over 144 countries worldwide, including major economies such as the European Union, Australia, Canada, and Japan.IFRS are a global set of accounting standards developed and maintained by the International Accounting Standards Board (IASB) to provide a common financial reporting language that facilitates comparability between companies and countriesLearn more about IFRS
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What prints?
vector v{1, 2, 3, 4, 5};
cout << v.pop_back() << endl;
The code will print the value of the element removed from the vector, which is "5", followed by a newline character.
The given code defines a vector "v" with five elements, {1, 2, 3, 4, 5}. The function pop_back() removes the last element from the vector, which in this case is 5, and returns its value. The code then outputs this value to the console using cout << v.pop_back() << endl;
The output will be "5" followed by a newline character due to endl. Note that the original vector "v" will now have a length of 4, with the last element removed.
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Write the definition of a function named is magic square that accepts a two-dimensional list as an argument and returns either true or false to indicate whether the list is a magic square. (submit only the function definition, not a complete program.)
A magic square is a square grid filled with distinct positive integers in which the sum of each row, column, and diagonal are equal. The function will check whether the sum of all rows, columns, and diagonals are equal and return true if they are equal, otherwise it will return false.
A function named "magic_square" is designed to accept a two-dimensional list as an argument and return either True or False, indicating whether the given list represents a magic square. A magic square is a square grid filled with distinct positive integers such that the sum of the numbers in each row, column, and both diagonals is the same.
This function analyzes the input two-dimensional list and performs calculations to determine if it meets the criteria for being a magic square.
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how would you change the code below to add a distto() method that runs in constant time, which returns the number of edges on the shortest path from the source to a given vertex?
The distto() method could then use the precomputed shortest path information to return the number of edges on the shortest path from the source to a given vertex in constant time.
What modification should be made to the code below to add a distto() method that runs in constant time?
Without seeing the code mentioned in the question, it is impossible to provide a specific answer to the question.
However, in general, adding a distto() method that runs in constant time to a graph data structure would require modifying the existing data structure and its methods.
One approach could be to use a modified version of Dijkstra's algorithm, which computes the shortest paths from a source vertex to all other vertices in the graph in O(|E|+|V|log|V|) time.
The distto() method could then use the precomputed shortest path information to return the number of edges on the shortest path from the source to a given vertex in constant time.
Alternatively, if the graph is unweighted, a BFS-based approach could be used to compute the shortest paths and store the information in the data structure for efficient access by the distto() method.
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a binary number is an example of which of the following? A. a microprocessor
B. a digital signal
C. a computer program
D. an analog signal
A binary number is an example of a digital signal. Binary numbers consist of only two digits, 0 and 1, which represent two states (on and off) in digital systems. Option B is correct.
A binary number is a number expressed in the base-2 numeral system, which uses only two symbols (0 and 1) to represent numbers. In digital electronics, binary numbers are used to represent and manipulate data, as they can be easily represented using electronic circuits that operate using two voltage levels (such as 0V and 5V) to represent 0 and 1.
A digital signal is a signal that uses discrete values to represent data, such as binary numbers. Digital signals are used in digital communications, computers, and other electronic devices that rely on binary numbers for processing and storage of information.
Therefore, option B is correct.
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What is true for a Mule subflow?
- It can have its own exception strategy
- It is executed synchronously
- An external client can send messages directly to it
- It must be in the same configuration file as the parent flow
A Mule subflow has the following characteristics:
- It cannot have its own exception strategy.
Instead, it inherits the error handling of the parent flow.
- It is executed synchronously, meaning that the processing of the subflow happens in sequence with the parent flow.
- An external client cannot send messages directly to a subflow.
Subflows are designed for reuse within other flows and can only be called from within a Mule application.
- It must be in the same configuration file as the parent flow.
This allows for easier management and maintenance of the Mule application.
I hope this answer helps you understand Mule subflows better!
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You must use a comma or a period to separate a table name from its alias. T/F
False. You must use a comma or a period to separate a table name from its alias.
In SQL, you can use a table alias to give a table a temporary name. The alias can be used to refer to the table throughout the query, and can make the query easier to read and understand. When using a table alias, you do not need to use a comma or a period to separate the table name from its alias. Instead, you can use the AS keyword to assign the alias to the table, as shown in the following example:
vbnet
Copy code
SELECT o.order_date, c.customer_name
FROM orders AS o
JOIN customers AS c ON o.customer_id = c.customer_id;
In this example, the AS keyword is used to assign the alias "o" to the orders table, and the alias "c" to the customers table. The aliases are then used to refer to the tables in the SELECT and JOIN clauses.
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What is the minimum required configuration in a flow for a Mule application to compile?
- A message processor in the Process section of a flow
- A message processor in the Source section of a flow
- An empty flow
- A message processor in both the Source and Process sections of a flow
The minimum required configuration in a flow for a Mule application to compile is an empty flow.
The minimum required configuration in a flow for a Mule application to compile is actually an empty flow.
While having at least one message processor in the Process section of a flow is required for the application to be functional, it is not necessary for the application to compile successfully.
An empty flow is the minimum configuration required for the Mule runtime engine to start up and deploy the application.
Therefore, the correct answer is: An empty flow.
However, for the flow to be functional, it must have at least one message processor in either the Process or Source sections of the flow.
It is also possible to have a message processor in both the Source and Process sections of the flow.
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208. Implement a Trie (Prefix Tree)
Implement a trie with insert, search, and startsWith methods.
Note:
You may assume that all inputs are consist of lowercase letters a-z.
All inputs are guaranteed to be non-empty strings.
A trie, also known as a prefix tree, is a tree data structure that is commonly used for efficiently storing and searching for strings. It supports three main operations: inserting a string, searching for a string, and finding all strings that start with a given prefix.
A trie is a type of tree data structure where each node represents a prefix of one or more strings. The root node represents the empty string, and each subsequent node represents a prefix of the strings that are stored in the trie. Each node may have multiple children, one for each possible next character in the strings.
For example, if the trie contains the strings "cat", "car", and "cut", then the root node would have children for "c", "a", and "u", and the "c" child would have children for "a" and "u".
To insert a string into the trie, we start at the root node and traverse down the tree, adding new nodes as necessary to represent the prefix of the string that is not already in the trie. Once we reach the end of the string, we mark the final node as a leaf node to indicate that the string is stored in the trie.
To search for a string in the trie, we start at the root node and traverse down the tree, following the path that corresponds to the characters in the string. If we reach a leaf node, then the string is in the trie; otherwise, the string is not in the trie.
To find all strings that start with a given prefix, we start at the root node and traverse down the tree, following the path that corresponds to the characters in the prefix. Then, we perform a depth-first search to find all of the leaf nodes in the subtree rooted at the prefix node, and return the strings that correspond to those nodes.
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What is used to measure the total output energy of a Wi-Fi device?A. dBiB. EIRPC. mWD. dBm
The measure used to quantify the total output energy of a Wi-Fi device is dBm, which stands for decibels-milliwatt. Opiton D is answer.
The dBm is a unit of power that represents the power level relative to 1 milliwatt. It is commonly used in wireless communication to quantify the strength of the signal being transmitted. The dBm value provides an absolute measurement of power, allowing for accurate comparisons and calculations. By measuring the power output in dBm, it is possible to assess the performance and range of a Wi-Fi device and ensure optimal signal strength. Therefore, option D, dBm, is the correct answer.
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On computers running macOS, the ______ contains icons used to run apps, display minimized windows, and access documents.
On macOS, the graphical user interface (GUI) is an essential part of the operating system that allows users to interact with their computers using icons, menus, windows, and other visual elements.
One of the most prominent features of the macOS GUI is the Dock, which is a bar that sits at the bottom (by default) of the screen and contains icons for frequently used applications, folders, and documents. The Dock also displays icons for minimized windows and shows the app indicators that inform users when an application is running.
The Dock is highly customizable, and users can add or remove icons, change the size and position of the Dock, and adjust its behavior and appearance according to their preferences. For example, users can choose whether the Dock shows only running apps, whether it hides automatically when not in use, or whether it displays recent documents or folders.
In summary, the Dock is a crucial part of the macOS GUI that provides quick access to apps, windows, and documents, and allows users to manage their workflow efficiently. By customizing the Dock, users can tailor their macOS experience to their needs and work more effectively on their Macs.
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By default, MySQL prevents all but one of the following types of concurrency problems. Which one is it? lost updates O dirty reads nonrepeatable reads O phantom reads
By default, MySQL prevents "dirty reads," which is a type of concurrency problem that occurs when a transaction reads data that has been modified by another transaction that has not yet been committed.
So, the correct answer is B.
This means that MySQL ensures that a transaction can only read data that has been committed by other transactions, thus preventing inconsistent or incorrect data from being read.
However, MySQL does not prevent the other types of concurrency problems, such as lost updates, nonrepeatable reads, and phantom reads.
These problems can occur when multiple transactions try to modify or read the same data simultaneously, leading to conflicts and inconsistencies.
To prevent these types of problems, developers can use various techniques such as locking, isolation levels, and optimistic concurrency control.
Hence the answer of the question is B.
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To efficiently scale an FBX model throughout the project where would you set the scale?:
To efficiently scale an FBX model throughout the project, you would set the scale in the import settings of the FBX file. By setting the scale in the import settings, you ensure consistency and efficiency as the model will be uniformly scaled wherever it is used in your project.
Here's a step-by-step explanation:
1. Locate the FBX file in your project folder or asset management tool.
2. Select the FBX file to open its import settings.
3. In the import settings, find the "Scale Factor" or similar option, depending on the software you are using.
4. Adjust the scale factor to the desired value, which will uniformly scale the FBX model throughout your project.
5. Save or apply the changes, and the model will be scaled efficiently across the entire project.
By setting the scale in the import settings, you ensure consistency and efficiency as the model will be uniformly scaled wherever it is used in your project.
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what value is assigned to x after the statement x = 44 % 5?A) 4B) 8C) 8.8D) 88.8%
The value assigned to x after the statement x = 44 % 5 is A) 4. The % symbol is called the modulo operator and it returns the remainder of the division between two numbers. In this case, 44 is divided by 5 resulting in a remainder of 4. Therefore, the value of 4 is assigned to x.
It's important to note that the modulo operator can be useful in a variety of programming situations such as determining if a number is even or odd, finding the last digit of a number, and generating random numbers within a range.
Understanding the basics of arithmetic operators like modulo is fundamental for any programmer as they help to perform mathematical calculations within a program. Being able to utilize these operators is critical in order to write efficient code and solve complex problems. Hence, A is the correct option.
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FILL IN THE BLANK. The ____ is the only one of the following charts to compare relative values from different categories of the whole. a. pie b. column C. line d. area
The pie chart is the only one of the following charts to compare relative values from different categories of the whole.
So, the correct answer is A.
Pie charts are used to compare relative values of different categories of a whole.
They show how much each category contributes to the whole by using slices of different sizes.
The size of each slice represents the proportion of that category to the total, and the entire pie represents the whole.
Other types of charts, such as column, line, and area charts, are used to show trends or comparisons between data points, but they do not compare relative values from different categories of the whole like a pie chart does.
Hence the answer of the question is A.
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Checker Scenario:AndChecker class implements Checker interface
The Checker scenario involves the implementation of the Checker interface by the Checker class. The Checker interface is a set of methods that define the behavior of a checker object. The Checker class must implement these methods to provide the desired functionality.
To implement the Checker interface, the Checker class must define the methods specified in the interface. These methods may include methods for checking if a given object meets a certain criteria, methods for performing some action on the object, or methods for comparing two objects. Once the Checker class has implemented the methods of the Checker interface, it can be used to check objects against the criteria defined by the interface. For example, if the Checker interface includes a method for checking if an object is valid, the Checker class can be used to check whether a given object is valid or not. Overall, the Checker scenario is an example of how interfaces can be used to define a set of methods that can be implemented by different classes to provide a consistent behavior. By implementing the Checker interface, the Checker class can be used in a variety of applications to perform checks on different types of objects.
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One common example of an inconsequential match that would not require documentation is a title, perhaps of a book, a program of study, or even a job description like: Kenneth Trump, the President of the National School of Safety and Security Services.
a. true
b. false
a. true. An inconsequential match in this context refers to a situation where there is no significant connection between two separate entities. In the given example, "Kenneth Trump" and "the President of the National School of Safety and Security Services" may share a similar title or name with a well-known public figure, but they are not the same person.
Explanation:
An inconsequential match, such as a title of a book, a program of study, or a job description, may not require documentation as long as it is widely known or easily verifiable. In the given example, stating that Kenneth Trump is the President of the National School of Safety and Security Services may not require documentation if this information is widely recognized or can be easily confirmed through reliable sources.
When determining whether documentation is needed, it's important to consider factors such as the familiarity of the information to the intended audience, the availability of reliable sources for verification, and the context of the writing. In general, widely known facts or information that can be easily confirmed through reputable sources are often considered common knowledge and do not require specific documentation.
However, it's important to note that documentation requirements may vary depending on the specific guidelines or requirements of the documentation style being used, such as APA, MLA, or Chicago style. It's always recommended to consult the appropriate style guide or seek guidance from your instructor or editor to ensure you are following the appropriate documentation standards for your particular context.
Therefore, this type of match would not require documentation because it does not have a meaningful impact on the understanding or interpretation of the information being presented.
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As network administrator you are asked to recommend a secure method of transferring data between hosts on a network. Which of the following protocols would you recommend?
As a network administrator, he would recommend using the Secure File Transfer Protocol (SFTP) as a secure method of transferring data between hosts on a network.
SFTP is a network protocol that provides secure file access, file transfer, and file management functionalities over a network connection. It uses Secure Shell (SSH) to encrypt all data in transit, which provides a high level of security and ensures that the data remains confidential. Additionally, SFTP is widely supported and easy to configure, making it a reliable choice for secure data transfer. so, As a network administrator, he would recommend using the Secure File Transfer Protocol (SFTP) as a secure method of transferring data between hosts on a network.
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which of the following is a benefit of allowing a program that is only partially in memory to execute? group of answer choices programs can be written to use more memory than is available in physical memory. all of them cpu utilization and throughput is increased. less i/o is needed to load or swap each user program into memory.
The benefit of allowing a program that is only partially in memory to execute is that less I/O is needed to load or swap each user program into memory. Option C is correct.
This is because only the necessary portions of the program are loaded into memory, allowing for more efficient use of available memory resources. Additionally, this can result in increased CPU utilization and throughput as the program can execute more quickly due to reduced overhead from swapping in and out of memory.
However, it is important to note that programs should not be written to use more memory than is available in physical memory as this can lead to performance issues and potentially crashes.
Therefore, option C is correct.
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True or False: We can think of encryption as deterministic pseduo-randomization
True. We can think of encryption as deterministic pseduo-randomization
Encryption can be thought of as deterministic pseudo-randomization because it transforms plaintext data into a seemingly random and unintelligible form (ciphertext), while maintaining the ability to be reversed back into plaintext using a specific key or algorithm. The process is deterministic because the same input data and key will always produce the same output (ciphertext) using the same encryption algorithm.
In addition, encryption often involves the use of pseudo-random number generators to generate random-looking data that is used as part of the encryption process. These generators are not truly random, but they produce output that appears random enough to be used in cryptographic applications.
Overall, encryption provides a way to secure sensitive information by making it unreadable to unauthorized parties, while still allowing authorized parties to access and read the information using the appropriate key or algorithm.
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An _____ ____ is a collection of networks that fall under the control of a single network operator.
An autonomous system is a collection of networks that fall under the control of a single network operator.
It is a unique entity that operates as a single system and has a unique identification number.
An autonomous system can consist of multiple networks that are connected together through routers and switches.
These networks can be owned and operated by different organizations, but they all fall under the control of the same network operator.
The main purpose of an autonomous system is to allow for efficient routing of traffic between networks.
By having a single network operator in control, the routing process can be optimized for maximum efficiency, reducing latency and improving network performance.
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write a function avg with drop that takes a list, num list and returns the average of the values in the list, but it does not include the highest or lowest value in the average. for example, avg with drop([1,2,3,4]) should return 2.5.
The implementation of the avg_with_drop function in Python is as follows:
def avg_with_drop(num_list):
if len(num_list) < 3:
raise ValueError("List must contain at least three values")
sorted_list = sorted(num_list)
return sum(sorted_list[1:-1]) / (len(num_list) - 2)
num_list = [1, 2, 3, 4]
avg = avg_with_drop(num_list)
print(avg) # Output: 2.5
Explanation:
This function first checks that the input list has at least three elements since it doesn't make sense to drop the highest and lowest values if there aren't at least three values. It then sorts the list and calculates the average of all but the first and last elements using slicing (sorted_list[1:-1]). Finally, it divides this sum by the length of the original list minus 2. This implementation assumes that the input list contains only numeric values. If the input list contains non-numeric values, the sorted function will raise a TypeError exception.
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