A transport level protocol can use encryption to guarantee that application messages are not read by intruders, even when the network layer cannot guarantee the confidentiality of transport-layer segments.
T/F?

A. The command to rename the file from "report.txt" to "final_report.txt" is ren report.txt final_report.txt.

The command that Mary should use to rename her report.txt file to final_report.txt is

option A: `ren report.txt final_report.txt`.

In DOS (Disk Operating System), `ren` command is used to rename one or more files. In addition to renaming a single file, the `ren` command can also rename multiple files with a single command.

The syntax of the `ren` command is as follows:

ren [drive:][path][source_filename] [destination_filename]

The `ren` command requires two arguments:

source_filename and destination_filename.

To rename the source file to the destination file, type the name of the source file followed by the new name of the file to be created. The destination file name should have the same file extension as the original file.

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An unsigned application that asks for unfettered access to the system often causes the operating system or security software to issue a security warning or alert.

A software programme that lacks a valid digital signature or certificate issued by a reliable authority that certifies its origin and integrity is referred to as an unsigned application. Software programmes' validity, integrity, and dependability are checked using digital signatures and certificates to make sure no unauthorised parties have tampered with or changed them. Unsigned programmes could be a security issue since they might be infected with malware, viruses, or other harmful software that compromises the system's security and the privacy of its users. Thus, it's crucial to use only reputable sources and vendors when downloading, installing, or executing unsigned apps.

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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 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

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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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

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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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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Answer: False

Explanation:

for loop can also be used to iterate over strings.

It is false that you cannot use a for loop to iterate over the characters in a string.

This is because you can indeed use a for loop to iterate over the characters in a string. The syntax of a for loop is such that it can be used to loop over any iterable object, including strings. A string is a sequence of characters. In Python, strings are represented using quotes, either single or double. You can use a for loop to loop over all the characters in a string, one at a time, in the order they appear. For instance, consider the following code snippet: for char in "Python":  print(char)The code will iterate over all the characters in the string "Python" one at a time and print them to the console. Therefore, you can use a for loop to iterate over the characters in a string.

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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:

Procedural

Explanation:

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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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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Option d is correct, Fuser is the printer consumables which is most likely causing the issue.

The issue described, where printouts have double images imposed on them, is a common symptom of a faulty fuser in a laser printer.

The fuser is responsible for bonding toner to the paper, and if it is not functioning properly, it can cause double images or smudging on the printouts.

Given the lack of maintenance kit installation for over a year, it is highly likely that the fuser needs to be replaced or repaired.

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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 correct option is: Traffic cannot be sent to two different switches through the same EtherChannel link.

Let's discuss more below.

An EtherChannel is a connection between two switches or devices, that are grouped together into a single virtual link to provide a larger bandwidth and redundancy. The administrator tried to create an EtherChannel between S1 and the other two switches, which can be done by bundling multiple links to increase the link bandwidth and to provide redundancy.

But, in the given scenario, the administrator was not able to create an EtherChannel successfully because traffic cannot be sent to two different switches through the same EtherChannel link. Therefore, option C is the correct answer.

Traffic cannot be sent to two different switches through the same EtherChannel link.

Traffic can only be sent to two different switches if EtherChannel is implemented on Layer 3 switches.

Traffic cannot be sent to two different switches, but only to two different devices like an EtherChannel-enabled server and a switch.

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The given statement "When you issue the command to compile a class containing errors, the Java compiler does not produce any error messages" is false.

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The use of performance appraisal systems for e.union negotiation is not a common use as described in the text.

While performance appraisal systems can be used for various purposes, such as human resource planning, career planning and development, compensation decisions, and individual performance improvement, their use in union negotiations is not typically mentioned as a common application. Performance appraisal systems are more commonly used as a tool for providing feedback, setting goals, and identifying areas for improvement for individual employees. Union negotiations are typically conducted at a higher level, such as between union representatives and management, and involve issues related to wages, benefits, and working conditions. Thus, option e is the correct answer.

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If we initialize semaphores to -1, it creates a deadlock; while if it is initialized to 3, it allows three processes to access the critical section simultaneously.

In using semaphores to control access to a critical section, initializing the semaphore counter to -1 would result in a deadlock. This is because the semaphore counter represents the number of available resources, and a negative value indicates that the resource is currently unavailable. If the semaphore counter is initialized to -1, then the first process that tries to access the critical section will block indefinitely because the semaphore value will never be incremented.

Initializing the semaphore counter to 3 would allow up to three processes to access the critical section simultaneously. However, if more than three processes try to access the critical section, then some processes will be blocked until one of the processes currently in the critical section releases the semaphore.

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This is a BASIC program that defines and calls a subroutine named "seri" which prints out the word "SCIENCE" in a series of shortened versions on each line.

The first line declares the subroutine "seri".

The second line clears the screen.

The third line calls the "seri" subroutine.

The "seri" subroutine starts by assigning the string "SCIENCE" to the variable "a$".

The length of the string "a$" is assigned to the variable "b".

The subroutine then enters a loop that will run 4 times, with the loop variable "I" starting at 1 and increasing by 1 each time.

Inside the loop, the subroutine prints out a tab character followed by a shortened version of the string "a$".

The MID$ function is used to extract a substring from the original string starting at position "i" and continuing for "b" characters.

This means that on the first iteration of the loop, the substring "SCIENCE" will be printed out, but on subsequent iterations the substring will be shorter.

The variable "b" is then decreased by 2, so that each iteration of the loop prints a shorter substring than the previous one.

Once the loop has completed, the subroutine ends.

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The given statement "The way to measure the resistance of a hash algorithm to cryptanalysis is to compare its strength to the effort required for a brute-force attack" is True.

Cryptanalysis is the art of deciphering encrypted messages, analyzing cryptographic protocols, and cracking codes. Cryptanalysis may be thought of as the opposite of cryptography, which is the study of making encrypted messages and designing secure communication protocols.

The strength of a hash algorithm can be measured by comparing it to the effort required for a brute-force attack. To demonstrate this, the difficulty of finding a message with a given hash value may be compared to the difficulty of finding a message with that same hash value using brute-force methods.

In general, a hash algorithm is considered to be secure if it is computationally infeasible to discover the message that generated a given hash value, even though hash values for a huge number of possible messages may have been created. The length of the hash value produced by the algorithm is also an indicator of its security.

The length of the hash value should be proportional to the size of the input, and the security of the hash algorithm is proportional to the length of the hash value. It's also important to remember that the algorithm must be quick to compute, as performance is often a critical factor.

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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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Given classes Mammal and Dog , it is true that "Mammal is the base class". Thus, Option D is correct.

A base class, also known as a superclass, is a class that serves as the foundation for one or more derived classes. It's the parent class for the derived class. A derived class is a class that derives its functionality from the base class. A derived class is a class that inherits its functionality from a base class. It is the subclass of the base class.

The derived class inherits all the members of the base class, including constructors, destructors, operators, and other member functions.

In object-oriented programming, a base class (also known as a superclass or parent class) is a class from which other classes are derived. In this case, Mammal is a more general class and Dog is a more specific class that inherits characteristics from Mammal.

Therefore, Mammal is the base class as it is higher up in the inheritance hierarchy, and Dog is derived from Mammal as it inherits properties and behaviors from the Mammal class. Option C is also partially correct as Dog can be directly derived from Mammal, but it is not directly derived from Canine unless Canine is also a subclass of Mammal.

Based on this explanation, Option D holds true.

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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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When configuring password and account lockout policies that Active Directory domain controllers will enforce, you should link the Group Policy object that you created to the Domain Controllers OU because most of the domain controllers are located there.

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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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Set a filter to only display the data that satisfies a certain criterion and freeze the header rows. This enables autonomous work on each analyst's portion of the data without interfering with other analysts' projects.

Just the rows that match the filter criteria will be visible when data is filtered; all other rows will be hidden. The filtered data can then be copied, formatted, printed, etc. without having to first sort or move it.

Header rows and columns might be frozen. Choose Freeze Header Rows or Freeze Header Columns from the pop-up choices below Headers & Footer.

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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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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