. suppose host a sends two tcp segments back to back to host b over a tcp connection. the first segment has sequence number 90; the second has sequence number 110. a. how much data is in the first segment?

The presence of two checkmarks on an Android text message normally signifies that the message has reached the recipient's handset. After a message is sent, the first check mark often appears to show that it has left the sender's device.

Two checkmarks often signify that a message has been successfully delivered to the intended recipient's device when using text messaging on an Android handset. The first check mark signifies that the message has been sent and is currently being sent when it is sent from the sender's device. After the message is properly delivered to the recipient's device, a second check mark appears to show that it has arrived at its destination. It's crucial to remember that the two check marks merely signify that the message has been delivered and do not necessarily imply that the receiver has read it.

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Two check marks in a text message on Android usually indicate that your message has been sent and read by the recipient. The first check mark shows the message was sent and the second shows it was delivered. In some apps also use color to show when the message has been read.

In the context of text messaging on Android, two check marks typically represent an indicator that your message has been delivered and read by the recipient. The first check mark signifies that your message has been sent from your device, while the second check mark denotes that the message has been delivered to the recipient's device. Some messaging applications like further differentiate delivery and read status by color - two grey check marks for delivered and two blue check marks for read.

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To write a script that reads the current time and converts it to a time of day in hours, minutes, and seconds, plus the number of days since the epoch, follow these steps:

1. Import the time module
2. Get the current time in seconds since the epoch
3. Calculate the number of days since the epoch
4. Calculate the remaining seconds
5. Convert the remaining seconds to hours, minutes, and seconds

Here's the script:

```python
import time

# Get the current time in seconds since the epoch
current_time = time.time()

# Calculate the number of days since the epoch
days_since_epoch = int(current_time // 86400)

# Calculate the remaining seconds
remaining_seconds = current_time % 86400

# Convert the remaining seconds to hours, minutes, and seconds
hours = int(remaining_seconds // 3600)
remaining_seconds %= 3600
minutes = int(remaining_seconds // 60)
seconds = int(remaining_seconds % 60)

# Print the result
print(f"Time: {hours:02d}:{minutes:02d}:{seconds:02d}, Days since epoch: {days_since_epoch}")
```

When you run this script, it will display the current time in hours, minutes, and seconds, along with the number of days since the epoch (1 January 1970).

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Joe likely administers a C: Supervisory Control and Data Acquisition (SCADA) system, which is used to control and monitor industrial processes such as those found in power plants.

SCADA systems are typically used to manage large-scale and complex processes, and rely on a combination of hardware and software to collect and analyze data, issue commands, and provide real-time control over industrial equipment. Given the critical nature of power plant operations, security is a major concern for SCADA systems, and it is important that proper security measures are in place to protect against cyber threats and other risks.

Therefore, the correct answer option is C.

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The Memory Manager optimizes the use of memory and thus improves throughput. However, it also requires more overhead than the other memory allocation schemes.

What is Memory Manager?

The memory manager is the operating system's component that is responsible for assigning memory to applications or programs. It keeps track of where memory is being used and where it is free, allocating memory to processes as needed. There are a few different memory allocation schemes that are commonly used, including contiguous allocation, non-contiguous allocation, and paging. Contiguous allocation: Contiguous allocation is a memory allocation technique in which each process is allocated a contiguous block of memory. Non-contiguous allocation: Non-contiguous allocation is a technique that allows a process to be allocated multiple blocks of memory anywhere in the address space of the process. Paging: Paging is a technique that divides the memory into a fixed-sized block called pages, and the memory is allocated to processes based on pages.

What is Segmentation?

Segmentation is a memory allocation scheme in which memory is divided into variable-sized blocks called segments. Each segment has a particular purpose, such as storing the code, stack, or heap. Segmentation is beneficial because it allows for more efficient memory usage. When a segment isn't in use, it can be swapped out, freeing up memory for other purposes. The overhead of Memory Manager By compacting and relocating, the Memory Manager optimizes the use of memory and thus improves throughput. However, it also requires more overhead than the other memory allocation schemes discussed in this chapter. In computer science, overhead is the excess cost in time, memory, bandwidth, or other resources required to complete a task beyond the minimum required. Overhead is commonly referred to as waste, and it is frequently used in conjunction with terms like "overhead cost" or "overhead ratio."

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If you want to store a large amount of data, then you should consider arrays because they can store data very compactly and efficiently

A list is a built-in Python data structure that holds a collection of items. Lists have several important properties:Items in a list are enclosed in square brackets, as in [item1, item2, item3].Lists are ordered, which means that the items in the list appear in a particular order. This allows us to use an index to find any item.Lists are mutable, which means they can be added or removed after they are created.List elements do not have to be distinct. Item duplication is possible because each element has its own distinct location and can be accessed independently via the index.Elements can be of various data types: strings, integers, and objects can all be combined in the same list.

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The command used on a Linux system to search for lines that match a pattern within a file is C. grep.

Grep stands for "global regular expression print" or "global search." It's a powerful Linux command-line tool used to search for lines that match a pattern specified by a user in a given file. It can also search recursively through directories for the specified pattern with the use of certain flags. Syntax of grep command: grep [OPTIONS] PATTERN [FILE]OPTIONS can be a lot of options that define how the search will be done. Some of the common options are: `-i` which makes the search case insensitive, `-v` which searches for lines that don't match the pattern, and `-r` which searches the pattern recursively in directories.

The grep command in Linux is a very useful command that allows a user to search for text or files within a directory or subdirectory. This command searches for text in a specified file or list of files and prints out the line that matches the search string.

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Your question is incomplete but probably the full question was:

which of the following commands is used on a Linux system to search for lines that match a pattern within a file?

A. awk

B. pattern

C. grep

D. join

Application software policies are a set of formal statements that define how a software application or program should be used. The purpose of such policies is to help educate users on how to use software more securely

.By defining boundaries of what applications are permitted or not, application software policies ensure that software applications are used in accordance with established guidelines . These policies may also help organizations comply with regulatory requirements . In addition, they may serve to protect sensitive data, prevent malware infections and unauthorized access, and minimize the risks associated with using various software applications . It is important that application software policies are easy to understand and follow by the end-users to ensure their effectiveness.

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Question:-What is the purpose of application software policies? Check all that apply.

They define boundaries of what applications are permitted.

They use a database of signatures to identify malware.

They take log data and convert it into different formats.

They serve to help educate users on how to use software more securely

To indicate that the only allowable values for the Client Type field are MED, DNT, and LAB, enter =MED or =DNT or =LAB in the Validation Rule property box.

A validation rule is a criterion that you define to restrict input to a table field or to a control on a form. Validation rules allow you to restrict the type of data entered into a field or a control. They are used to ensure that the data entered conforms to some predetermined standards.

In MS Access, the purpose of Validation Rule is to validate the data entered by the user in the fields or control on the form. It provides an additional layer of control over data entry, which helps to ensure that data entered into a field or control meets specific criteria. Validation rules in MS Access are used to restrict the type of data entered in a field or control, ensure that the data entered meets some predetermined criteria, and provide feedback to the user if the entered data doesn't meet the requirements.

Enter the below syntax in the Validation Rule property box:IN("MED","DNT","LAB")Syntax: IN("allowable value 1", "allowable value 2", ..., "allowable value n")Example: IN("Active", "Inactive")

Here are the steps to create a validation rule in MS Access: Firstly, open the MS Access database in which you want to add a validation rule.After that, open the table, form, or query in which you want to add the validation rule. Select the field or control in which you want to add the validation rule.Click the “Design” tab on the ribbon.Now click on the "Validation Rule" property from the field or control properties window.Enter the validation rule syntax into the validation rule property box.Close the field or control properties window.

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A "worm" is a form of malware that spreads on its own, particularly across a network. Worms can be extremely destructive, seriously harming computer systems and networks, and they can be challenging to find and eliminate.

Any form of malicious software intended to harm or disrupt computer networks, devices, or systems is referred to as malware. Malware can take many different forms, such as spyware, viruses, trojans, worms, and ransomware. Infected software downloads, malicious URLs, email attachments, and other channels can all spread it. Malware can do a number of things after it is installed on a system, including stealing personal data, erasing files, changing system settings, and even seizing control of the computer or network. Antivirus software, firewalls, and safe online practises are all necessary components of a multi-layered defence against malware.

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The answer "cost-effective" is based on the fact that personal computers are less expensive to acquire, operate and maintain compared to mainframe computers. Option B is the correct answer.

They are also more scalable, allowing organizations to purchase and add capacity as needed, without the upfront costs associated with mainframes. Additionally, personal computers offer greater flexibility in terms of software and hardware choices, making it easier to customize and tailor solutions to specific business needs.

Finally, with the increasing availability of cloud-based services, personal computers can easily access powerful computing resources on-demand, without the need for on-premise hardware. All of these factors make personal computers a more cost-effective option for data presentation compared to mainframes.

Therefore, the correct naswer is b. Cost effective.

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Biyu is focusing on  (c) event logs, which are records of actions that the organization's operating system or application software creates.

Event logs are important for compliance because they can provide an audit trail of activity, helping organizations to identify security incidents, investigate them, and take appropriate remedial action. By reviewing event logs, Biyu can ensure that the organization is complying with relevant regulations and standards, and that it is able to demonstrate its compliance if required.

Thus, option (c) is the correct answer.

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The acts as a second messenger is: the structure labeled C acts as a second messenger.

Second messengers are molecules that are included in intracellular signaling pathways in cells. Second messengers transfer signals delivered by transmembrane receptors from the plasma membrane of the cell to intracellular target molecules. Second messengers are non-protein substances that act as the link between receptor-ligand activation and subsequent signaling events. Second messengers are responsible for transmitting signals from the first messenger into the cell, as well as providing a "go-between" between the receptor and the next protein kinase in the signaling pathway.

The structure labeled C acts as a second messenger. The particle labeled A is a particle that can link with a transmembrane protein. The structure labeled B carries the signal from the transmembrane protein to the protein labeled C, which then transforms the molecule labeled D using the energy of ATP catalysis. Molecule D catalyzes the transformation of a protein labeled E.

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Answer:

When passing a variable that is not an array to a function, the memory address of the variable must be passed to the function in order to simulate call by reference.

In other words, instead of giving the function the value of the variable directly, we give it a pointer to where the variable is stored in memory. This lets the function directly access the memory where the variable is stored and change its contents.

In languages like C and C++, this is usually done by giving the function a pointer to the variable.

When you click on a pop-up or banner advertisement on a website and go to the advertiser's website, it is known as a click-through.

A click-through refers to the action of clicking on an online advertisement that redirects the user to another website, usually the advertiser's website. Click-through rate (CTR) is a measure of the success of an online advertisement campaign. It's a ratio that compares the number of people who clicked on an ad to the total number of people who saw the ad. CTR is used to assess the effectiveness of an online advertising campaign by tracking how many people clicked on an ad and then proceeded to take a particular action.

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To find the minimum key stored in a B-tree, we can start at the root node and follow the leftmost path of child nodes until we reach a leaf node. The minimum key will be the leftmost key in the leaf node.

To find the predecessor of a given key stored in a B-tree, we first need to find the node containing the key. We start at the root node and traverse the tree downwards, following the appropriate child node at each level based on the comparison of the search key with the keys stored in the current node. When we reach a leaf node, we either find the key or determine that the key is not present in the tree.

If the key is present, we can find its predecessor as follows:

If the key is not present in the tree, we can find the predecessor of the key by finding the node where the search would have terminated and following the same steps as above, but using the key in the node immediately to the left of the search position.

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The sequence used by the attacker, in the Directory Traversal Attacks to access restricted directories outside of the web server root directory is ../.

Directory Traversal Attack is a vulnerability that happens when an attacker can break out of a web application's root directory and access sensitive files on a web server. A hacker can use directory traversal to view files, execute code, and access sensitive data. Directory traversal attacks can be launched using various methods, including web servers, FTP clients, and even SSH terminals.

Directory traversal is a type of web exploit that can be used to read sensitive data, execute code, or even gain administrative access to a web server. It's a method of exploiting web servers that occurs when an attacker sends unexpected input to the server, causing it to display the contents of a directory that isn't meant to be visible.

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Answer:

Here is an HTML code you can use.

If you go to any HTML editor. You will see this clearly works. Hope this helps lad. This also includes your bonus challenge.

<!DOCTYPE html>

<html>

<head>

<title>March Calendar</title>

<style>

 table {

  border-collapse: collapse;

 }

 td, th {

  border: 1px solid black;

  padding: 10px;

  text-align: center;

  font-size: 20px;

  font-weight: bold;

 }

 th {

  background-color: #ddd;

 }

 td {

  height: 100px;

  vertical-align: top;

 }

</style>

</head>

<body>

<h1>March Calendar</h1>

<table>

 <thead>

  <tr>

   <th>Sun</th>

   <th>Mon</th>

   <th>Tue</th>

   <th>Wed</th>

   <th>Thu</th>

   <th>Fri</th>

   <th>Sat</th>

  </tr>

 </thead>

 <tbody>

  <tr>

   <td></td>

   <td></td>

   <td></td>

   <td></td>

   <td></td>

   <td>1</td>

   <td>2</td>

  </tr>

  <tr>

   <td>3</td>

   <td>4</td>

   <td>5</td>

   <td>6</td>

   <td>7</td>

   <td>8</td>

   <td>9</td>

  </tr>

  <tr>

   <td>10</td>

   <td>11</td>

   <td>12</td>

   <td>13</td>

   <td>14</td>

   <td>15</td>

   <td>16</td>

  </tr>

  <tr>

   <td>17</td>

   <td>18</td>

   <td>19</td>

   <td>20</td>

   <td>21</td>

   <td>22</td>

   <td>23</td>

  </tr>

  <tr>

   <td>24</td>

   <td>25</td>

   <td>26</td>

   <td>27</td>

   <td>28</td>

   <td>29</td>

   <td>30</td>

  </tr>

  <tr>

   <td>31</td>

   <td></td>

   <td></td>

   <td></td>

   <td></td>

   <td></td>

   <td></td>

  </tr>

 </tbody>

</table>

<h2>Events:</h2>

<ul>

 <li>March 17 - St. Patrick's Day</li>

 <li>March 20 - First day of Spring</li>

</ul>

</body>

</html>

The calendar for this month using HTML is mentioned below:

<!DOCTYPE html>

<html>

<head>

 <title>Calendar</title>

 <style>

   table {

     border-collapse: collapse;

     width: 100%;

   }

   th, td {

     border: 1px solid black;

     text-align: center;

     padding: 8px;

   }

   th {

     background-color: #ccc;

   }

 </style>

</head>

<body>

 <h2>Calendar</h2>

 <table>

   <tr>

     <th>Sunday</th>

     <th>Monday</th>

     <th>Tuesday</th>

     <th>Wednesday</th>

     <th>Thursday</th>

     <th>Friday</th>

     <th>Saturday</th>

   </tr>

   <tr>

     <td></td>

     <td></td>

     <td></td>

     <td></td>

     <td>1</td>

     <td>2</td>

     <td>3</td>

   </tr>

   <tr>

     <td>4</td>

     <td>5</td>

     <td>6</td>

     <td>7</td>

     <td>8</td>

     <td>9</td>

     <td>10</td>

   </tr>

   <tr>

     <td>11</td>

     <td>12</td>

     <td>13</td>

     <td>14</td>

     <td>15</td>

     <td>16</td>

     <td>17</td>

   </tr>

   <tr>

     <td>18</td>

     <td>19</td>

     <td>20</td>

     <td>21</td>

     <td>22</td>

     <td>23</td>

     <td>24</td>

   </tr>

   <tr>

     <td>25</td>

     <td>26</td>

     <td>27</td>

     <td>28</td>

     <td>29</td>

     <td>30</td>

     <td>31</td>

   </tr>

 </table>

</body>

</html>

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It should be noted that this implementation passes a subarray to the recursive function via pointer arithmetic rather than by generating a new array. This prevents the array from being copied.

The compiler is instructed to restrict the programmer from changing a variable's value via the const keyword, which indicates that a variable's value is constant.

#include <climits>  // for INT_MAX

#include <iostream>

using namespace std;

   if (arrSize == 1) {

       return arr;  // base case: array with one element

   } else {

       const int* minRest = min(arr + 1, arrSize - 1);  // recursive call on the rest of the array

       return (*arr < *minRest) ? arr : minRest;  // compare current element with minimum of rest

   int main() {

   int arrSize;

   cin >> arrSize;

   int arr[arrSize];

   for (int i = 0; i < arrSize; ++i) {

       cin >> arr[i];

   }

   const int* minLoc = min(arr, arrSize);

   cout << *minLoc << endl;

   return 0

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A multivariate dataset will have multiple select questions. When using Excel, the K predictor columns must not be contiguous. The dataset will consist of a single column of Y values, K columns of X values, and N rows of observations.

What is a multivariate dataset?

A multivariate dataset refers to a collection of observations with multiple characteristics or variables for each observation. Each variable is referred to as a dimension, and the number of dimensions equals the number of variables. A dataset with two variables or dimensions is referred to as bivariate, whereas one with more than two variables is referred to as a multivariate dataset. What is Excel? Microsoft Excel is a spreadsheet program developed by Microsoft for Windows, macOS, Android, and iOS. It comes with features like graphing tools, pivot tables, and a macro programming language called Visual Basic for Applications to assist users in processing data. What is a contiguous column? A contiguous column refers to a sequence of data or information that is arranged consecutively in a column. It means that data is stored together in a group with no space in between. What is an observation in statistics? In statistics, an observation refers to a collection of data for a single unit, person, or entity that is being studied. It might be an individual or a group of individuals who are studied at the same time for one or more variables. Observations are a fundamental component of a dataset. Therefore, it is necessary to understand their characteristics and composition when dealing with statistical data.

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The environment and development are connected concerns, according to the idea of sustainable development.

In order to fulfil the requirements of the present generation without jeopardising the ability of future generations to meet their own needs, development must be sustainable. The idea acknowledges the connection of environmental, social, and economic sustainability. It underlines the necessity of considering how development would affect the environment and the resources that sustain human well-being. As a result, sustainable development views the environment and development as linked problems that demand attention at the same time. It acknowledges that while social advancement and economic expansion are significant, they must be pursued in a way that reduces environmental damage and safeguards natural resources for future generations.

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The selection sorting algorithm will take the least time when all input array elements are identical. This is because selection sort works by selecting the minimum element from the unsorted list and putting it in its correct position.

The sorting algorithm that will take the least time when all input array elements are identical is the Insertion sort algorithm. The insertion sort algorithm is a simple, efficient sorting algorithm that builds the final sorted array one item at a time. It is more efficient when sorting an array of sorted or almost sorted elements. The quick Sort algorithm and Selection Sort algorithm both have average and worst-case scenarios. These algorithms have a complexity of O(n^2). Quick Sort and Selection Sort would work poorly on arrays containing identical elements.The explanation for the statement "when all input array elements are identical, the sorting algorithm that will take the least time is the insertion sort algorithm" is as follows: In the case of all identical elements, quick sort algorithm slows down due to the occurrence of multiple partitions with equal elements.

As a result, it would have a performance penalty that would affect its efficiency. Insertion Sort Algorithm: Insertion sort algorithm is an example of an in-place sorting algorithm that works well with a small dataset. It starts by comparing the first two elements and sorting them in ascending or descending order. The remaining elements are then inserted into the sorted list, resulting in the entire array being sorted. It has an average time complexity of O(n^2). Therefore, for a small dataset with identical elements, the Insertion sort algorithm is the most efficient algorithm.

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In order for a program to be considered free and open source, a user must be able to: run the program for any reason"study and modify the source code" and redistribute copies "distribute modified versions."

In order for a program to be considered free and open source, it must adhere to the four essential freedoms, as defined by the Free Software Foundation. These freedoms include the ability to run the program for any purpose, study and modify the source code, and redistribute both original and modified copies.

Additionally, the program must be licensed under an open source license, which grants users the legal right to exercise these freedoms. By providing users with these freedoms, free and open source software encourages collaboration, innovation, and community-driven development.

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When you open a file, it is copied from the hard drive (storage) to the memory (RAM). When you close a file, it is removed from memory and saved to the hard drive.  The correct answer is B.

This process is referred to as loading and unloading.  When you open a file, the operating system copies it from the hard drive to the RAM (Random Access Memory). The processor of your computer reads and executes the data from RAM since it is faster than the hard drive. When you're done with the file and close it, the data is deleted from RAM, freeing up space for new data. The file is then saved back to the hard drive from where it came, ensuring that it is safe and ready for future use.

Thus, the correct answer is B.

"

Complete question

content loaded

A file is copied from the hard drive (storage) to ______ when you open it. When you close a file, it's removed from ______ and saved to the hard drive.

A: Operating system; memory

B: Memory (RAM); memory

C: memory; disk drive

"

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The statement that was considered a contributor to vulnerabilities in the OpenSSL security product, known as the Heartbleed bug is that OpenSSL used a feature called Heartbeat.

OpenSSL- OpenSSL is an open-source cryptography toolkit that can be used to build applications and systems. It is available on a variety of platforms and is used by many organizations to secure network connections. OpenSSL is used to provide encryption and decryption of data on a network connection. It is a critical component of the secure connection ecosystem.

The Heartbleed Bug is a vulnerability in the OpenSSL library that affects SSL/TLS encryption. It is caused by a feature called Heartbeat. An attacker can exploit the Heartbleed Bug to obtain sensitive information, including usernames, passwords, and other sensitive data. This vulnerability was discovered in 2014 and affected many systems worldwide. OpenSSL has since been patched, and the vulnerability has been fixed.

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The given statement "data viewing, keyword searching, decompressing are three subfunctions of the extraction function" is false because data viewing, keyword searching, and decompressing are subfunctions of the analysis function, not the extraction function

The extraction function involves the process of gathering and extracting data from various sources such as computers, smartphones, or other digital devices for analysis. The extracted data is then subjected to various analytical techniques, including data viewing, keyword searching, and decompressing, to uncover relevant information and insights. These subfunctions are crucial in the analysis of digital evidence and help investigators make informed decisions.

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To utilize the new laser printer with a built-in NIC, you would set up network printing.

Network printing refers to the ability to print to a printer from multiple devices on a network without the need for a direct physical connection to the printer.

Network printing allows multiple devices on the network to access and print to the printer without the need for a direct physical connection to the printer. This setup would be more efficient and convenient than the previous configuration, as it would eliminate the need for the PC to act as a print server and allow all devices on the network to print to the printer directly.

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Among the three options, the requirement for a computer to access the internet is a wired connection using either an ethernet or fiber optic cable (option i).

This is because a wired connection allows the computer to connect to a modem or router, which then connects to the internet service provider (ISP) and provides access to the internet.

A monthly payment to the Internet Engineering Task Force (option ii) is not a requirement for accessing the internet. The Internet Engineering Task Force (IETF) is a standards organization that develops and promotes internet standards, but it does not provide internet access.

The ability to connect that computer to another internet-connected device (option iii) is also not a requirement for accessing the internet, although it may be necessary for some specific applications or scenarios.

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Answer:

lll only

Explanation:

i got it right

To use a used smartphone as a hotspots, you should ensure it supports Wi-Fi hotspot, Bluetooth tethering, and USB tethering.

If you are in the market for a used smartphone, but want to ensure that you can use it as a hotspot, it should support Wi-Fi hotspots, Bluetooth tethering, and USB tethering.

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The term "offshoring" refers to the practise of businesses outsourcing software development outside of their own countries.

A commercial technique known as offshoring involves corporations outsourcing work or services to another nation, usually one with reduced labour costs or specialised capabilities. Offshoring in the context of software development refers to contracting out software work to a group or business based in another nation, frequently in Asia or Eastern Europe. This may offer a number of advantages, such as quicker turnaround times, cost reductions, and access to a bigger pool of experienced personnel. Offshoring, however, can also come with difficulties, including as managing projects across various sites, time zone variances, and linguistic and cultural obstacles. As a result, businesses must carefully weigh the advantages and risks of outsourcing before making a choice.

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