What is true regarding the IEEE 802.11 WLAN standard?
a. a to avoid the crowded ISM spectrum, 802.11 requires the use of licensed frequency channels b. both centralized and decentralized access methods are available in the 802.11 standard c. WLAN communications can only be accomplished using an AP
d. there is no method available to minimize data collisions over unguided medium
Answers
Regarding the IEEE 802.11 WLAN standard, the true statement is Option B. both centralized and decentralized access methods are available in the 802.11 standards.
What is IEEE?The Institute of Electrical and Electronics Engineers (IEEE) is an American professional organization that aims to promote technological innovation and excellence for the benefit of humanity.IEEE 802.11 standard: IEEE 802.11 is a set of specifications for implementing wireless local area network (WLAN) computer communication in the 2.4, 3.6, 5, and 60 GHz frequency bands. It is used in many business and personal computer networks and is supported by most laptop and desktop computers.
Developed by the IEEE, it defines wireless interface specifications for radio modules, mobile devices, and routers, among other things. The standard specifies the methods for the physical and medium access control (MAC) layers of the network.
The IEEE 802.11 standard provides for a wireless network with many access points (APs), each of which serves a small geographic area. APs are bridged with each other and can extend the network's range. Both centralized and decentralized access methods are available in the 802.11 standards.
Centralized access control is managed by an AP, while decentralized access control is distributed across the devices themselves.
As a result, the network can be C. both centralized and decentralized, depending on the situation.
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Related Questions
How do i fix this? ((My computer is on))
Answers
Answer:
the picture is not clear. there could be many reasons of why this is happening. has your computer had any physical damage recently?
Answer:your computer had a Damage by u get it 101 Battery
and if u want to fix it go to laptop shop and tells him to fix this laptop
Explanation:
What file format would be required a coworker need to edit a layer in a photoshop file 
-png
-psd
-pdf
-jpeg
Answers
While on a coffee break, your colleague asserts that cooperative multitasking is the best operating system design. What is your response? (Choose three.)
a. A disadvantage of cooperative multitasking is that it relies on each program to decide when to give control back to the operating system.
b. Cooperative multitasking can be faster than other forms of multitasking because it increases the clock speed of the processor.
c. Cooperative multitasking OSs can freeze due to a process getting stuck in an infinite loop.
d. Modern operating systems use preemptive multitasking so that the operating system is fully in control.
e. Cooperative multitasking is best used on real-time operating systems.
Answers
Which of the following will NOT correctly increment the value by one of a previously initialized integer variable named counter?
counter + 1;
counter++;
counter = counter + 1;
counter += 1;
All of the above will correctly increment the value by one.
Answers
counter + 1; will raise the value by one but it will not set the value of counter to itself + 1, therefore,
counter + 1; is the correct answer
If you want to create programs with more detailed images, maybe even characters that you could interact with, what pieces of information do you need in your code
Answers
The pieces of information needed in the code to create a more detailed program are the sprite objects
What are sprites?Sprites are program objects that are used in a program to add more features such as detailed images, characters and animations in the program.
The sprite objects are dragged and dropped on the program
Hence, the pieces of information needed are the sprite objects
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A common approach to identifying the sources of risks isO brainstorming O developing a contingency planO evaluatingO elaboration
Answers
The correct answer is brainstorming a common approach to identifying the sources of risks.
The unplanned presentation of unique concepts and solutions is a key component of the group problem-solving method known as brainstorming. This method calls for a lengthy, rambunctious conversation in which each group member is urged to think aloud and offer as many ideas as they can based on their varied expertise. Using the brainstorming process, several ideas can be generated to deal with a particular problem.The method has been around for more than 70 years and is being employed today to get students involved in a variety of problem-solving activities. There is a fundamental framework to follow when creating brainstorming sessions, however techniques differ.
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how data gets from web browser to webserver and back?
Answers
Data gets from a web browser to a web server and back through a process involving HTTP (Hypertext Transfer Protocol) requests and responses.
1. Web browser to web server: When a user enters a website URL or clicks on a link, the web browser initiates an HTTP request. This request includes the desired webpage's address (URL) and any additional data or parameters. The browser forms the request using the HTTP protocol and sends it over the internet.
2. Routing: The request travels across the internet, passing through various routers and network infrastructure, until it reaches the destination server. This routing process involves identifying the most efficient path for the request to reach the server.
3. Web server processing: Upon receiving the request, the web server processes it. This involves interpreting the request, identifying the requested webpage or resource, and executing any necessary server-side scripts or operations.
4. Generating the response: The web server generates an HTTP response containing the requested webpage or resource. The response may also include additional data, such as cookies or headers. The server uses the HTTP protocol to construct the response.
5. Response back to the web browser: The generated response is sent back to the web browser using the same routing process as the request. The response travels through the internet and reaches the user's browser.
6. Rendering in the web browser: Once the response is received, the web browser interprets the response and renders the webpage or resource accordingly. The browser processes the HTML, CSS, JavaScript, and other assets to display the requested content to the user.
The data flow from a web browser to a web server and back involves the initiation of an HTTP request by the browser, routing of the request across the internet to the destination server, processing of the request on the server, generation of an HTTP response by the server, routing of the response back to the browser, and rendering of the response in the browser. This process ensures the exchange of data between the client-side (browser) and server-side (web server) components of a web application, enabling users to access and view webpages and resources.
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Which tools do meteorologists use to collect data about the weather?
satellites
weather fronts
maps and charts
isolines
Answers
A satellite is a tool that the meteorologists use to track the weather and environmental conditions on Earth.
What is a satellite?Satellites are devices that trace orbits around our planet and are used for weather monitoring.
Uses of satellites in weatherThey are constantly used to monitor weather, clouds, approaching storms, and brewing hurricanes.They capture the movement of clouds and their behavior, and serve to collect all possible information about the environment and the conditions of the Earth's atmosphere that can affect large areas of the Earth's surface.Therefore, we can conclude that a satellite collects and transmits meteorological information.
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Answer:
A
Explanation:
what is a main purpose of launching an access attack on network systems?
Answers
Answer:
The main purpose of launching an access attack on network systems is to gain unauthorized access or control over the targeted systems, networks, or sensitive information. The specific goals and motives behind launching access attacks can vary, but some common purposes include:
1. Unauthorized Access
2. Data Theft or Espionage
3. Disruption of Services
4. Privilege Escalation
5. Planting Malware or Backdoors
The main purpose of launching an access attack on network systems is to gain unauthorized access to sensitive data or information.
This type of attack is called a Denial of Service (DoS) attack. The attacker floods the network or system with traffic or requests, causing it to crash or become unavailable to users. This can be particularly damaging for businesses or organizations that rely on their networks to function.
Some attackers launch access attacks for fun or to prove their hacking skills. This type of attack is called "ethical hacking," but it can still be harmful to the network or system. In some cases, the attacker may cause unintentional damage or expose vulnerabilities that could be exploited by other attackers.
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In which type of I/O addressing does a read or write operation trigger a dedicated I/O bus to select the appropriate device
Answers
The type of I/O addressing you're referring to is Direct Memory Access (DMA). It triggers a dedicated I/O bus.
The type of I/O addressing you're referring to is called "Direct Memory Access" (DMA). DMA is a method used in computer systems to transfer data between peripheral devices and memory without involving the CPU. It allows the CPU to offload the task of transferring data, thus improving system performance.
In DMA, a dedicated I/O bus, known as the DMA controller or DMA channel, is responsible for managing data transfers between the peripheral devices and memory. When a read or write operation is initiated, the CPU sets up the DMA controller by providing it with the necessary information, such as the source and destination addresses in memory, the number of bytes to transfer, and the direction of the transfer.
Once the DMA controller is configured, it takes control of the system bus and transfers data directly between the peripheral device and memory, bypassing the CPU. It triggers the I/O bus to select the appropriate device and performs the data transfer autonomously.
DMA is particularly useful for high-speed data transfers or when continuous data streams need to be processed. By reducing the involvement of the CPU in data transfer operations, DMA helps improve overall system efficiency and allows the CPU to focus on other tasks.
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Write a program to convert centigrade to Kelvin. It should display value in centigrade and then the value in Kelvin just as you displayed squares in the previous question. The range to be followed for this conversion is from 50-100 degree celsius.
So, it should look like this:
1. Centrigrade: 50 --> Kelvin: 323.15
2. Centrigrade: 51 --> Kelvin: 324.15
3. Centrigrade: 52 --> Kelvin: 325.15
etc.
Answers
Answer:
for degree in range(50, 101):
kelvin = degree + 273.15
print("Centrigrade: {} --> Kelvin: {}".format(degree, kelvin))
Explanation:
*The code is in Python.
Create a for loop that iterates from 50 to 100 (Note that the starting value is included, but the ending value is not included in the range method. That is why you need to write range(50, 101) to iterate from 50 to 100)
Convert the centigrade to kelvin using formula (Note that the degree variable represents the each centigrade degree from 50 to 100 and you need to add 273.15 to convert it to Kelvin)
Print the result as in requested format
n this exercise, you are going to prompt the user for the number of cents (less than 1000). Based on their response, you will then determine the least number of coins needed to make change.
Remember, quarters are worth 25 cents, dimes are worth 10 cents, nickels are worth 5 cents, and pennies are worth 1 cent.
Sample Response:
Please enter an amount (less than 1000 cents): 436
Quarters: 17
Dimes: 1
Nickels: 0
Pennies: 1
Answers
Dimes: 10
Nickles: 20
Pennies: 200
Total amount 900cents
Ishmael would like to capture a selected potion of his screen and then capture action he performs on that selected portion. What should he do?
Use a video from my PC command
User the insert screen recording control
Create a poster frame
Use an embed code
Answers
Answer: User the insert screen recording control
Explanation:
Since Ishmael wants to capture a selected potion of his screen l, after which he'll then capture the action that he performs on that selected portion, he should use the insert screen recording control.
It should be noted that on most keyboards, there's an "insert screen" button. Also, Ishmael can simply open the window that he wants to screenshot and then click the screenshot button.
Therefore, the correct option is B.
Write a c program with total change amount a an integer input, and output the change uing the fewet coin, one coin type per line. The coin type are Dollar, Quarter, Dime, Nickel, and Pennie. Ue ingular and plural coin name a appropriate, like 1 Penny v. 2 Pennie
Answers
#include <stdio.h>
int main() {
int change; // variable to store the total change amount
int coin_values[] = {100, 25, 10, 5, 1}; // array to store the coin values (in cents)
const char *coin_names[] = {"Dollar", "Quarter", "Dime", "Nickel", "Penny"}; // array to store the coin names
int coin_counts[5]; // array to store the number of each coin type
printf("Enter the total change amount: ");
scanf("%d", &change);
// Loop through the coin_values array to determine the number of each coin type
for (int i = 0; i < 5; i++) {
coin_counts[i] = change / coin_values[i]; // integer division to determine the number of coins
change = change % coin_values[i]; // modulo to determine the remaining change
}
// Loop through the coin_counts array to print the number of each coin type
for (int i = 0; i < 5; i++) {
if (coin_counts[i] == 1) { // if the number of coins is 1, print the singular coin name
printf("%d %s\n", coin_counts[i], coin_names[i]);
} else if (coin_counts[i] > 1) { // if the number of coins is greater than 1, print the plural coin name
printf("%d %ss\n", coin_counts[i], coin_names[i]);
}
}
return 0;
}
Changes to Internet protocols happen..
A. On all abstraction layers at the same time, every time.
B. On each abstraction layer as needed, some levels may change and others may not.
C. On each abstraction layer as scheduled by the government.
D. On all abstraction layers in sequence from low-level to high-level, every time.
Answers
Answer: I THINK THE ANSWER IS C
instructions a milk carton can hold 3.78 liters of milk. each morning, a dairy farm ships cartons of milk to a local grocery store. the cost of producing one liter of milk is $0.38, and the profit of each carton of milk is $0.27. write a program that prompts the user to enter: the total amount of milk produced in the morning. the program then outputs: the number of milk cartons needed to hold milk. round your answer to the nearest integer. the cost of producing milk. the profit for producing milk.
Answers
If you want the user to enter a value, you use a prompt box. The user will have to either "OK" or "Cancel" in order to continue after a prompt box appears.
What exactly does a programming prompt mean?A text-based operating system (OS) or program's command prompt is its input area. The question aims to compel a response. A short text string and a blinking cursor make up the command prompt, where the user writes commands.
According to the given information:public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.println("Enter total amount of milk: ");
double totalAmountOfMilk = Double.parseDouble(scanner.nextLine());
System.out.println("The number of milk cartons needed to hold milk:");
int numberOfMilkCartoons = (int) (totalAmountOfMilk / 3.78);
System.out.println(numberOfMilkCartoons);
System.out.println("The cost of producing one liter of milk:");
double cost Of Producing One Liter Of Milk = totalAmountOfMilk * 0.38;
System.out.println(costOfProducingOneLiterOfMilk);
System.out.println("The output of the profit for producing milk:");
double profitForProducingMilk = numberOfMilkCartoons * 0.27;
System.out.println(profitForProducingMilk);
}
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When you perform a search, a general search engine searches the entire Internet.
A. True
B. False
Answers
Answer:
a
Explanation:
general search is a
advanced search is b
I kinda need help with this guys..
Answers
number 3
Explanation:
The decisions you make today can have an impact on your options five years from now
Answers
我的好友谊你也可以的我要看见过了一会儿我就
Answer:
yes
Explanation:
yhwhhsujsiwkksjsndnxhxb
which of the following sdl activities do occur in the design and development phase? question 1 options: threat modeling privacy information gathering and analysis static analysis open source selection if available
Answers
These activities in the design and development phase are crucial for ensuring that security is integrated into the application from the early stages of development.
In the design and development phase of the Security Development Lifecycle (SDL), the following activities occur:
Threat modeling: This activity involves identifying potential threats to the system or application and analyzing their impact on security. It helps in understanding the security risks and prioritizing them based on their impact.Privacy information gathering and analysis: This activity involves gathering information related to privacy and analyzing the privacy risks associated with the application. It helps in ensuring that the application is compliant with privacy regulations.Static analysis: This activity involves analyzing the source code for security vulnerabilities using automated tools. It helps in identifying security issues early in the development cycle.Open source selection if available: This activity involves selecting open source components that are secure and meet the application's requirements. It helps in avoiding security issues that may arise due to the use of vulnerable open source components.Learn more about SDL :
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A RAID 5 configuration requires a minimum of two hard disks to operate.
True
False
Answers
The given statement "A RAID 5 configuration requires a minimum of two hard disks to operate." is False.
RAID stands for Redundant Array of Independent Disks which is a data storage virtualization technique that aims at combining several physical disk drive components into one or more logical units for data redundancy, performance enhancement, or both.
RAID employs the technique of disk mirroring or disk striping and is utilized at the disk level.
A RAID 5 configuration is achieved by striping the data across multiple disks with distributed parity and requires a minimum of three hard disks to operate.
If any one disk fails, the RAID controller can reconstruct the data from the remaining data and the distributed parity.
RAID 5 offers a good balance between performance and fault tolerance.
The correct statement is "A RAID 5 configuration requires a minimum of three hard disks to operate."
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When looking to ensure your website is easily accessible by mobile users, what should you focus on doing first
Answers
Answer:
There are may steps in this procedure but there few steps that do first to access your mobile with your website.
Explanation:
When we are looking in our website and easily accessed by the mobile users, It is easy for them.
There are certain steps that should do first.
First step is that you have to redesign the website color schemeTo optimize your websiteTo create the mobile appNow to shorten the content in website.what is one of the things that has set siri apart from other digital assistants?
Answers
The numerous Easter eggs the program's designers have incorporated are one of the features that have distinguished Siri.
What is a good illustration of a digital assistant?A sophisticated computer programme that simulates a dialogue with its users, generally online, is referred to as a digital assistant, sometimes known as a predictive chatbot.The digital voice assistants from Apple and Amazon, Alexa and Siri, are more than simply practical tools; they are also very real applications of artificial intelligence, which is permeating more and more of our daily lives. Abstract. Voice assistants are computer programmes that can comprehend human speech and give voice-like responses. Alexa from Amazon, Cortana from Microsoft, and Assistant are the voice assistants that are most commonly used today. They can be used as discrete home speakers or as voice assistants included into smartphones.To learn more about digital assistants, refer to:
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which of the following would be the device file for the third partition on the second sata drive on a linux system?
a. /dev/sdc2
b. /dev/sdb3
c. /dev/hdb3
d. /dev/hdc2
Answers
On a Linux system, /dev/sdb3 is the device file for the third partition on the second SATA drive. Option B is correct.
What is Linux system?Linux is a defined as a free and open source operating system (OS). An operating system is the software that directly manages the hardware and resources of a system, such as the CPU, storage, and memory.
Linux is a modern, free operating system based on UNIX standards. It was created in 1991 as a small but self-contained kernel by Linus Torvalds, with the primary design goal of UNIX compatibility. The device file for the third partition on the second SATA drive on a Linux system is /dev/sdb3.
Therefore, option B is correct.
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____ is a technology that exists inside another device
Answers
Answer:
Embedded technology is a technology that exists inside another device.
Answer:
Embedded
Explanation:
An embedded system is a combination of computer hardware and software designed for a specific function.
30 points for this.
Any the most secret proxy server sites like “math.renaissance-go . Tk”?
Answers
No, there are no most secret proxy server sites like “math.renaissance-go . Tk”
What is proxy server sitesA proxy server functions as a mediator, linking a client device (such as a computer or smartphone) to the internet. Sites operating as proxy servers, otherwise referred to as proxy websites or services, allow users to gain access to the internet using a proxy server.
By utilizing a proxy server site, your online activities are directed through the intermediary server before ultimately reaching your intended destination on the web.
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import java.util.Scanner;
public class PigLatin {
public static void main(String args[]) {
Scanner console =new Scanner(System.in);
System.out.println("Please enter a word");
String phrase=console.nextLine();
System.out.println(eachWord(phrase));
}
public static String eachWord(String phrase) {
String help[]=phrase.split(" ");
for(int i=0; i
if (help[i].charAt(0) == 'a'){
return help[i] + "-ay";
}
if (help[i].charAt(0) == 'e'){
return help[i] + "-ay";
}
if (help[i].charAt(0) == 'i'){
return help[i] + "-ay";
}
if (help[i].charAt(0) == 'o'){
return help[i] + "-ay";
}
if (help[i].charAt(0) == 'u'){
return help[i] + "-ay";
}
if (help[i].charAt(0) == 'A'){
return help[i] + "-ay";
}
if (help[i].charAt(0) == 'E'){
return help[i] + "-ay";
}
if (help[i].charAt(0) == 'I'){
return help[i] + "-ay";
}
if (help[i].charAt(0) == 'O'){
return help[i] + "-ay";
}
if (help[i].charAt(0) == 'U'){
return help[i] + "-ay";
}
else {
return help[i].substring(1)+"-"+help[i].charAt(0)+"ay";
}
}
return "aoujbfgaiubsgasdfasd";
}
I need help with this Pig Latin Program. I want to split the string so each word can run through the method eachWord. I don't know how to revamp this!
Answers
Answer:b
Explanation:
I took quiz
Answer:
uuuuuuuuuuhhm
Explanation:
CODE!
__________ (10 letters) is space between lines of program code that makes the code easier to read and that the compiler ignores.
Answers
Answer:
Whitespace. I hope this helps
how to solve "unregistered authentication agent for unix-process"?
Answers
The error message "unregistered authentication agent for Unix-process" typically occurs when you are trying to use an authentication agent (such as ssh-agent) without properly registering it with your system.
What is Authentication?
Authentication is the process of verifying the identity of a user, system, or device attempting to access a particular resource or service. The goal of authentication is to confirm that the person or entity claiming to be a particular user or system is indeed who they say they are.
Authentication typically involves the use of credentials, such as a username and password, a security token, or a biometric factor, which the user or system must provide to gain access. The system then compares the provided credentials to a database of authorized users or systems to confirm that the credentials are valid and match an existing user or system.
Authentication is a critical aspect of security and is used to protect sensitive information and resources from unauthorized access. It is often used in conjunction with other security measures, such as authorization, encryption, and auditing, to ensure that only authorized users or systems can access protected resources.
The error message "unregistered authentication agent for Unix process" typically occurs when an SSH agent is not running or has not been registered with the user's session. Here are some steps you can take to solve this issue:
1. Check if an SSH agent is running: Open a terminal and type the command "eval ssh-agent -s". If an agent is already running, this command will output some environment variables. If not, it will start a new agent and output the environment variables that you need to set.
2. Set the environment variables: If the ssh-agent command outputted some environment variables, copy and paste the output into the terminal. If not, use the output from the command in step 1.
3. Add your SSH key: Use the ssh-add command to add your SSH key to the agent. For example, type "ssh-add ~/.ssh/id_rsa" to add the default private key.
Therefore, If the above steps do not solve the issue, try restarting your computer or checking your SSH configuration files to ensure that they are correct.
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AD and BC are equal perpendiculars to a line segment AB (see figure). Show that CD
bisects AB.