Compare and contrast the older multiplexing techniques such as frequency division and time division multiplexing with the newer techniques such as discrete multitone and orthogonal frequency division multiplexing. What appears to be the trend in these newer protocols?

Answers

Answer 1

Answer:

As compared to new multiplexing techniques, older techniques like FDM frequency-division multiplexing (FDM) may be a technique by which the entire bandwidth available during a communication medium is split into a series of non-overlapping frequency sub-bands, each of which is employed to hold a separate signal.

Explanation:

Especially used for Radio and tv Broadcasting and TDM ( Time-division multiplexing (TDM) may be a method of transmitting and receiving independent signals over a standard signal path by means of synchronized switches at each end of the cable in order that each signal appears on the road only a fraction of your time in an alternating pattern, especially used for telegraphy) are simple; they'll be suffering from noise and their transmission speeds are high. New techniques are far more complex, they will be suffering from more noise and transmission speeds are very high as compared to older techniques.


Related Questions

Which of the following ribbon tools would be most efficient for applying multiple
changes to text formatting?
a. Font Dialog Box
b. Paragraph Styles
c. Styles Dialog Box
d. Find and Replace

Answers

Answer:

Option A, Font Dialog Box

Explanation:

In order to make changes in the text formatting, the font setting in the dialog box can be used on the Ribbon's Home tab.

From the font settings in Word 2016, one can change the following change font color, size, style etc.

Hence, option A is correct

what are the different steps while solving a problem using computer? explain​

Answers

Explanation:

The following six steps must be followed to solve a problem using computer.

Problem Analysis.

Program Design - Algorithm, Flowchart and Pseudocode.

Coding.

Compilation and Execution.

Debugging and Testing.

Program Documentation.

If the code for JAVA is LCXC, what is the code for BASIC?

Answers

Answer:

DCUKE

Explanation:

Given that,

Code for JAVA = LCXC

To find,

Code for BASIC = ?

As we observe the pattern,

In "JAVA", every letter moved two-letter forward in their alphabetical order or we can say that every third alphabet of the given letter is used to make the code:

J + 2 = L

A + 2 = C

V + 2 = X

A + 2 = C

Similarly,

B + 2 = D

A + 2  = C

S + 2 = U

I + 2  = K

C + 2 = E

Thus, DCUKE is the code for BASIC.

The code for BASIC given the code for JAVA is; DCUKE

We are given the code for JAVA as LCXC

From that code for "JAVA", we see that every letter is moved forward two letters in their alphabetical order. This means

J = L because L comes after J and KA = C because C comes after A and BV = X because X comes after V and UA = C because C comes after A and B

Similarly for BASIC;

B = D because D comes after B and CA = C because C comes after A and BS = U because U comes after S and TI = K because K comes after I and JC = E because E comes after C and D

Thus, finally the code for BASIC is DCUKE

Read more about JAVA at; https://brainly.com/question/18554491

Ryan would like to copy a list of contacts from a colleague into his personal address book. The list of contacts is
contained in a simple text file. What should he do first?
O Export from text to .pst.
Import directly from the text file.
O Format the text file with comma-separated values and save as CSV file type.
O Copy and paste the list into the address book.

Answers

Answer:

He should: Format the text file with comma-separated values and save as CSV file type. ]

Explanation:

hope this helps!

Answer:

c

Explanation:

Question 6 Which of the following statements about datasets used in Machine Learning is NOT true? 1 point Testing data is data the model has never seen before and is used to evaluate how good the model is Training subset is the data used to train the algorithm Validation data subset is used to validate results and fine-tune the algorithm's parameters Training data is used to fine-tune algorithm’s parameters and evaluate how good the model is

Answers

Answer:

Training data is used to fine-tune the algorithm’s parameters and evaluate how good the model is

Explanation:

The statement about datasets used in Machine Learning that is NOT true is "Training data is used to fine-tune algorithm’s parameters and evaluate how good the model is."

This is based on the fact that a Training dataset is a process in which a dataset model is trained for corresponding it essentially to fit the parameters.

Also, Testing the dataset is a process of examining the performance of the dataset. This refers to hidden data for which predictions are determined.

And Validation of dataset is a process in which results are verified to perfect the algorithm's details or parameters

Please Help Me!!!!!!!!!!!!!


A commercial photographer would most likely be employed by which of the following?

A business
A magazine
A travel agency
All the above

Answers

Explanation:

a magazine cause it helps put out commercial

in order to switch from paper to digital medical records the hospital bought in several individuals to introduce and implement the tools needed to organize the files . These individuals would best be described as

Answers

Available options are:

A. Technical champions

B. Engaged filmmakers

C. Business partners

D. Compliance champions

Answer:

Technical champions

Explanation:

Given that a "Technical Champion" is someone whose responsibility is to introduce and perform the role of enabling the use of technology, development of skills across the organization, and strengthen communication between Information Technology and the staff or employees.

Hence, in this case, considering the job descriptions described in the question above, these individuals would best be described as TECHNICAL CHAMPIONS

what is a task that is not associated with loading existing data into a new ERP system.
A. Data mapping
B. Data cleanup
C. Data loading
D. Data reporting​

Answers

Answer:

I believe the answer would be D. Data Reporting!

hope this helps! <3

Answer:

Correct Answer D:- DATA Reporting.

Explanation:

Data reporting is the collection and submission of data that leads to accurate ground-based analysis incorrect data reporting can lead to extremely informed decision-making using wrong evidence. Data reporting is not only about information but also about data collection.

The reporting of data may be an unbelievably difficult task. In order to achieve the job of counting every resident of a country, census bureaus can hire even hundreds of thousands of workers.

Data reporting is a step that translates raw information into information. It is not the data analysis that transforms data and information into insights. If data is not reported, the problem is known as underreporting the opposite is wrong.

Create a method called nicknames that passes an array as a parameter. Inside the method initialize it to hold 5 names of your choice. Use the for each enhanced loop to print the elements of the array.

Answers

Answer:

    //======METHOD DECLARATION=========//          

    //method name: nicknames                                          

    //method return type: void                                            

    //method parameter: an array reference                    

    public static void nicknames(String [] names){      

       //initialize the array with 5 random names              

       names = new String[] {"John", "Doe", "Brian", "Loveth", "Chris"};

       //using an enhanced for loop, print out the elements in the array

       for(String n: names){

           System.out.print(n + " ");

       }

       

    }

Explanation:

The program is written in Java. It contains comments explaining important parts of the code. Kindly go through these comments.

A few things to note.

i. Since the method does not return any value, its return type is void

ii. The method is made public so that it can be accessible anywhere in and out of the class the uses it.

iii. The method is made static since it will most probably be called in the static main method (at least for testing in this case)

iv. The method receives an array of type String as parameter since the names to be stored are of type String.

v. The format of initializing an array manually should follow as shown on line 7. The new keyword followed by the array type (String), followed by the square brackets ([]) are all important.

vi. An enhanced for loop (lines 9 - 11) is a shorthand way of writing a for loop. The format is as follows;

=> The keyword for

=> followed by an opening parenthesis

=> followed by the type of each of the elements in the array. Type String in this case.

=> followed by a variable name. This holds an element per cycle of the loop.

=> followed by a column

=> followed by the array

=> followed by the closing parenthesis.

=> followed by a pair of curly parentheses serving as a block containing the  code to be executed in every cycle of the loop. In this case, the array elements, each held in turn by variable n, will be printed followed by a space.

A complete code and sample output for testing purposes are shown as follows:

==================================================

public class Tester{

    //The main method

    public static void main(String []args){

       

       String [] names = new String[5];

       nicknames(names);

    }

   

  //The nicknames method

    public static void nicknames(String [] names){

       names = new String[] {"John", "Doe", "Brian", "Loveth", "Chris"};

       for(String n: names){

           System.out.print(n + " ");

       }

       

    }

}

==================================================

Output:

John Doe Brian Loveth Chris

NB: To run this program, copy the complete code, paste in an IDE or editor and save as Tester.java

Please help me with this question

Answers

Answer:

2

Explanation:

evaluate the formula for n=2, then it says:

a₂ = 2a₁ - 3·2

So

a₂ = 2·4 - 3·2 = 8-6

a₂ = 2

Which of the following statements about the relationship between hardware and software is true? a) Hardware can be present in intangible form. b) A flash drive is an example of software. c) Software and hardware can act independently of each other. d) Software consists of instructions that tell the hardware what to do.

Answers

Answer:

C

Explanation:

The statements about the relationship between hardware and software that is true is: D. Software consists of instructions that tell the hardware what to do.

A hardware can be defined as the physical components of an information technology (IT) system that can be seen and touched such as:

RouterSwitchKeyboardMonitorMouse

Conversely, a software refer to a set of executable codes (instructions) that is primarily used to instruct a computer hardware on how it should process data, perform a specific task or solve a particular problem.

In conclusion, a software consist of a set of executable codes (instructions) that tell a computer hardware what to do.

Read more on hardware here: https://brainly.com/question/959479

Why are mobile apps often easier to develop than desktop apps?

mobile apps use a lower screen resolution

mobile apps can be created in C#

mobile apps use less memory than desktop apps

mobile app creation platforms are available that reduce the need to code

Answers

Answer:

Mobile app creation platforms are available that reduce the need to code.

Explanation:

Simple app creation softwares and tools are all over the place for mobile app creation. To create a mobile app, no coding knowledge or experience is needed unlike desktops apps that requires the knowledge of some coding languages like python, JavaScript etc.

The availability of these softwares and platforms have made mobile apps creation easy.

Select the correct answer.
Which part connects the CPU to the other
internal parts of a computer?
O A.
ALU
OB.
bus
O c. control unit
OD.
memory unit
O E. register

Answers

Answer:

I believe the correct answer is B. bus

Explanation:

The bus is the internal part that connects CPU and other parts to the rest of the computer.

The part that connects the CPU to the other internal parts of a computer is the bus. The correct option is B.

What are the different parts of a computer?

A motherboard, a central processor unit, a graphics processing unit, random access memory, and a hard disc or solid-state drive are the five fundamental components of every computer.

Every computer has 5 components, whether it is a high-end gaming system or a simple desktop system for kids. The CPU is the brain of your computer; it is responsible for all programming and computation. The motherboard, however, serves as the computer's brain, using circuits to link the CPU to other hardware components including memory, a hard drive, a CD/DVD drive, and all of your peripherals.

Therefore, the correct option is B. bus

To learn more about computers, refer to the link:

https://brainly.com/question/1483004

#SPJ2

Web analytical packages can obtain the following information when someone visits a website, except Group of answer choices name and address of web visitors geographic location Internet connection type navigation source

Answers

Answer:

name and address of web visitors.

Explanation:

A website refers to the collective name used to describe series of web pages linked together with the same domain name.

Web analytical packages are software features that are typically used for tracking the identity of a computer system by placing or adding cookies to the computer when it's used to visit a particular website. Thus, it's only used for tracking the identity of a computer but not the computer users.

This ultimately implies that, web analytical packages can obtain the geographic location, Internet connection type, and navigation source information when someone visits a website, but it cannot obtain the name and address of web visitors or users.

Function newPriceTable = UpdatePriceTable(origPriceTable, changePrice, colNum) % UpdatePriceTable: Adds changePrice to column colNum of origPriceTable % Returns the updated price table newPriceTable % Inputs: origPriceTable - original price data table % changePrice - column array of pricing changes % colNum - specified column of priceTable to update % % Outputs: newPriceTable - updated price data table % Assign newPriceTable with data from priceTable; newPriceTable = [0, 0; 0, 0;]; % FIXME % Assign newPriceTable column specified by colNum with original price % data updated by changePrice newPriceTable = [0, 0; 0, 0;]; % FIXME end Run Your Solution Code to call your function when you click Run

Answers

Solution :

The function code is :

function newPriceTable = UpdatePriceTable(origPriceTable,changePrice, colNum)

newPriceTable = origPriceTable:

newpriceTable(:,colNum) = newPriceTable(:,colNum)+changePrice;

end

UpdatePriceTable ([19.99, 9.99; 14.99, 8.99;], [-1.00, -1.50] , 1)

ans = 18.9900      9.9900

         13.4900      8.9900

Accessing disk is much slower than accessing memory. As a result, many file systems have been designed with various optimizations to improve performance. What is an example of file system performance optimization

Answers

Answer:

An example of file system performance optimization is Caching - i.e. keep in memory a collection of blocks that logically belong on the disk, for performance reasons.

Explanation:

Caching - i.e. keep in memory a collection of blocks that logically belong on the disk, for performance reasons.

The ultimate frequent method employed to decrease the duration of disk elucidated as a collection of books i.e similar kind that is preserved in invisible area.

Which of the following is NOT one of the five things that work in all applications?
Select one:
Cut, Copy, and Paste
Sort
Undo and Redo
File Menu

Answers

Answer:

its either sort or file menu

Write a function called reverse Return that is almost the same job as reverse, but instead of printing the letters straight to the screen, it returns a String in which the letters have been reversed. The function call would look like:

Answers

Answer:

The function in Python is as follows:

def reverse(inputstr):  

   outputstr = ""

   for i in inputstr:

       outputstr = i + outputstr

   return outputstr

Explanation:

This defines the function

def reverse(inputstr):

This initializes the output string

   outputstr = ""

This iterates through the input string

   for i in inputstr:

This generates the output string by reversing the input string

       outputstr = i + outputstr

This returns the reversed string

   return outputstr

Wi-fi refers to a network that is based on the ____ standard

Answers

Answer:

Wi-fi refers to a network that is based on the 802.11 standard.

Answer:

It is based on the 802.11 standard

Explanation:

spherevolume = (4.0 / 3.0) * pival * sphereradius * sphereradius * sphereradius ;

Answers

Answer:

The program in Python is as follows:

pival = 3.142

sphereradius = float(input("Radius: "))

spherevolume = [tex](4.0 / 3.0)[/tex] * [tex]pival[/tex] * sphereradius * [tex]sphereradius[/tex] * sphereradius

print(spherevolume)

Explanation:

The missing part of the program is to calculate the volume of a sphere.

The program in Python (in the answer section) is implemented using the already used variables.

Initialize pi

pival = 3.142

Get input for radius

sphereradius = float(input("Radius: "))

Calculate the volume

spherevolume = [tex](4.0 / 3.0)[/tex] * [tex]pival[/tex] * sphereradius * [tex]sphereradius[/tex] * sphereradius

Print the calculated volume

print(spherevolume)

Write a Java method that prints a list of characters using the following header:public static void printChars (char ch1, char ch2, int numPerLine)This method prints chars between ch1 and ch2 (inclusive); the number of chars per-line is specified by int variable numPerLine. Then write and test Java programs that printa) characters from 1 to Z (uppercase), ten chars per line; b) all lowercase letters followed by all uppercase letters, 13 per line (Hint: you may want to call the method printChars twice in this second part)Consecutive characters on the same line should be separated by exactly one space.

Answers

Answer:

The method and the test cases is as follows:

import java.util.*;

public class Main{

public static void printChars (char [tex]ch1[/tex], char [tex]ch2[/tex], int [tex]numPerLine[/tex]){

    int count = 0;

    for(char ch = ch1; ch<=ch2; ch++){

        System.out.print(ch+" ");

        count++;

        if(count == numPerLine){

            System.out.println();

            count = 0;         }     }

    System.out.println(); }

public static void main(String[] args) {

 printChars('1','Z',10);

 printChars('a','z',13);

 printChars('A','Z',13);

}}

Explanation:

See attachment for complete source file where comments are used as explanation

For each compound below, identify any polar covalent bonds and indicate the direction of the dipole moment using the symbols δ +and δ-.
(a) HBr
(b) HCI
(c) H2O
(d) CH40

Answers

Answer:

H-Br bond is polar, hydrogen is partly positive and bromine is partly negative

H-Cl bond is polar, hydrogen is partly positive and bromine is partly negative

O-H bond in water is polar, hydrogen is partly positive and oxygen is partly negative

C-O bond in CH40 is polar, carbon is partly positive and oxygen is partly negative

Explanation:

A molecule possess a dipole moment when there is a large difference in electro negativity between two bonding atoms in the molecule.

The presence of dipole moments introduces polarity to the molecule. In all the molecules listed in the answer, the shared electron pair of the bond is closer to the more electronegative atom causing it to be partially negative while the less electronegative atom in the bond is partially positive.

You issue a transmission from your workstation to the following socket on your LAN: 10.1.145:110. Assuming your network uses standard port designations, what Application layer protocol are you using

Answers

Answer:

POP

Explanation:

The application layer protocol that is been used here is POP, given that you issued a transmission to the socket on you LAN: 10.1.145:110.  and you use a standard port designation

Reason:

110 ( port number ) represents a POP3 process that is always used in a TCP/IP network , and the socket address started with an IP address as well. hence we can say that the application layer protocol is POP

A primary key ensures that —- are unique ?

Answers

Answer:

To qualify as a primary key, it is the data within each column that must be unique, not simply the column names themselves. At the same time, no value in the columns can be blank or NULL. A primary key, therefore, is used to ensure the data in a specific column is unique.

Explanation:

hope it's help

You would like to upgrade the processor in your system to a 64-bit processor. Which of the components will you most likely need to upgrade as well to take full advantage of the new processor

Answers

Answer: Operating system

Explanation:

The components that will be required to upgrade as well to take full advantage of the new processor is the Operating system.

The operating system manages the software resources and the computer hardware, through the provision of common services for the computer programs. It simply supports the basic function of the computer like task scheduling

the derivative of
[tex]ln \: |x| [/tex]
is an odd function
True or False​

Answers

Answer:

true

Explanation:

the derivative of lnx is 1/x and 1/x is and odd function because x^-1 is raise to a negative odd number

Answer:

jidjdjdjdkdjdjkdjdhdjurjrhrjdjdjdjdjddjjd

Explanation:

kkfjfjfjfjfjfjfjfjfjjfjfjffjjfjfjfjfjf sorry po

What are the things that a computer literate understands?Name thems.​

Answers

Answer:

•Determine your IP address.

•Verify physical connectivity to the network.

•Check that you have a logical connection to the network.

•Find out what path network traffic takes to get to its destination.

Translate from DNS names to IP addresses.

Explain briefly the FIREWALLS

Answers

Answer:

Think of a firewall as your own personal security guard. The firewall will block unapproved websites from talking to your computer and will stop your computer from talking to unapproved/unnecessary websites. Hope this helps!

Explanation:

Output each floating-point value with two digits after the decimal point, which can be achieved as follows:
print('{:.2f}'.format(your_value))
(1) Prompt the user to input a wall's height and width. Calculate and output the wall's area (integer). (Submit for 2 points).
Enter wall height (feet):
12
Enter wall width (feet):
15
Wall area: 180 square feet
(2) Extend to also calculate and output the amount of paint in gallons needed to paint the wall (floating point). Assume a gallon of paint covers 350 square feet. Store this value in a variable. Output the amount of paint needed using the %f conversion specifier. (Submit for 2 points, so 4 points total).
Enter wall height (feet):
12
Enter wall width (feet):
15
Wall area: 180 square feet
Paint needed: 0.51 gallons
(3) Extend to also calculate and output the number of 1 gallon cans needed to paint the wall. Hint: Use a math function to round up to the nearest gallon. (Submit for 2 points, so 6 points total).
Enter wall height (feet):
12
Enter wall width (feet):
15
Wall area: 180 square feet
Paint needed: 0.51 gallons
Cans needed: 1 can(s)
(4) Extend by prompting the user for a color they want to paint the walls. Calculate and output the total cost of the paint cans depending on which color is chosen. Hint: Use a dictionary to associate each paint color with its respective cost. Red paint costs $35 per gallon can, blue paint costs $25 per gallon can, and green paint costs $23 per gallon can. (Submit for 2 points, so 8 points total).
Enter wall height (feet):
12
Enter wall width (feet):
15
Wall area: 180 square feet
Paint needed: 0.51 gallons
Cans needed: 1 can(s)
Choose a color to paint the wall:
red
Cost of purchasing red paint: $35
1 import math
2
3 # Dictionary of paint colors and cost per gallon
4 paint_colors = {
5 'red': 35,
6 'blue': 25,
7 'green': 23
8 }
9
10 # FIXME (1): Prompt user to input wall's width
11 # Calculate and output wall area
12 wall_height = int(input('Enter wall height (feet):\n'))
13 print('Wall area:')
14
15 # FIXME (2): Calculate and output the amount of paint in gallons needed to paint the wall
16
17 # FIXME (3): Calculate and output the number of 1 gallon cans needed to paint the wall, rounded up to nearest integer
18
19 # FIXME (4): Calculate and output the total cost of paint can needed depending on color
20

Answers

Answer:

The modified program in Python is as follows:

import math

paint_colors = {'red': 35,'blue': 25,'green': 23}

wall_height = int(input('Enter wall height (feet):\n'))

wall_width = int(input('Enter wall width (feet):\n'))

area = wall_height*wall_width

print('Wall area:',area,'square feet')

paint_needed = area/350.0

print('Paint needed: {:.2f} gallons'.format(paint_needed))

print('Cans needed:',round(paint_needed),'can(s)')

color = input("Choose a color to paint the wall: ")

print("Cost of purchasing", color, "paint: $",paint_colors[color])

Explanation:

The italicized are given from the question [unchanged]

import math

paint_colors = {'red': 35,'blue': 25,'green': 23}

wall_height = int(input('Enter wall height (feet):\n'))

This gets input for width

wall_width = int(input('Enter wall width (feet):\n'))

Calculate the wall area

area = wall_height*wall_width

Print the calculated wall area

print('Wall area:',area,'square feet')

Calculate the amount of paint needed

paint_needed = area/350.0

Print the amount of paint needed to 2 decimal places

print('Paint needed: {:.2f} gallons'.format(paint_needed))

Print the amount of can needed to nearest integer

print('Cans needed:',round(paint_needed),'can(s)')

Prompt user for color of paint [here, we assume the user input is correct]

color = input("Choose a color to paint the wall: ")

Prints the corresponding amount for the color

print("Cost of purchasing", color, "paint: $",paint_colors[color])

What is XOR and XNOR logic gates?

Answers

Answer:

There are two remaining gates of the primary electronics logic gates: XOR, which stands for Exclusive OR, and XNOR, which stands for Exclusive NOR. In an XOR gate, the output is HIGH if one, and only one, of the inputs is HIGH. ... An XNOR gate is an XOR gate whose output is inverted.

Explanation:

There are two remaining gates of the primary electronics logic gates: XOR, which stands for Exclusive OR, and XNOR, which stands for Exclusive NOR. In an XOR gate, the output is HIGH if one, and only one, of the inputs is HIGH. ... An XNOR gate is an XOR gate whose output is inverted..

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