Professor Gig A. Byte needs to store text made up of the characters A with frequency 6, B with frequency 2, C with frequency 3, D with frequency 2, and E with frequency 8. Professor Byte suggests using the variable length codes:
Character Code
A 1
B 00
C 01
D 10
E 0
The professor argues that these codes store the text in less space than that used by an optimal Huffman code. Is the professor correct?

Answers

Answer 1

Answer:

This is not true

Explanation:

The optimal Huffman code is used to encrypt and compress text files. It uses fixed-length code or variable-length code for encryption and compression of data.

The professor's character code is similar to Huffman's variable-length coding which uses variable length od binary digits to represent the word strings. The file size of the text file above is;

= 6 x 1 + 2 x 2 + 3 x 2 + 2 x 2 + 8 x 1 = 28 bits

This would be the same for both cases.

The encrypt would be the problem as the encoded and decoding of the characters B and E may cause an error.


Related Questions

write passage on computer virus​

Answers

In more technical terms, a computer virus is a type of malicious code or program written to alter the way a computer operates and is designed to spread from one computer to another. A virus operates by inserting or attaching itself to a legitimate program or document that supports macros in order to execute its code.

Answer:

A computer virus is a relatively small program that attaches itself to data and program files before it delivers its malicious act. There are many distinct types of viruses and each one has a unique characteristic. Viruses are broken up into to main classes, file infectors and system or boot-record infectors.

hope it helps

A .cache is made up of _____ , each of which stores a block along with a tag and possibly a valid/dirty bit

Answers

Answer:

Blocks

Explanation:

A .cache is made up of blocks, each of which stores a block along with a tag and possibly a valid/dirty bit.

Basically, each blocks that makes up the cache stores additional block and sometimes a bit.

explain the main components of a computer system​

Answers

Answer:

A motherboard.

A Central Processing Unit (CPU)

A Graphics Processing Unit (GPU), also known as a video card.

Random Access Memory (RAM), also known as volatile memory.

Storage: Solid State Drive (SSD) or Hard Disk Drive (HDD)

Explanation:

They all work together to create a system

While your hands are on home row, both of your thumbs are on _____.

Answers

Answer:

While your hands are on home row, both of your thumbs are on Space-barI know this will definitely help✍️✍️✍️

Hi, Everybody i have a question it is almost my B-day i want this lego set
(Nintendo Entertainment System™) BUT THEY ARE SOLD OUT
I NEED HALP

Answers

Answer:

You can look at different websites of look on an app for people selling it, or something :p

Explanation:

Many electronic devices use a(n) ?, which contains all the circuit parts in a miniature form.

Answers

Answer:

An integrated circuit is a single, miniature circuit with many electronically connected components etched onto a small piece of silicon or some other semiconductive material. (A semiconductor is a nonmetallic material that can conduct an electric current, but does so rather poorly.)

Explanation:

Many electronic devices use a(n) integrated circuit which contains all the circuit parts in a miniature form.

The use of  integrated circuit is known to be a kind of a single, miniature circuit that has a lot of electronically connected parts that are designed onto a small piece of silicon or semi conductive material.

A lot of electronic components are known to be capacitors, inductors, resistors, diodes, transistors and others.

Learn more about electronic devices from

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Describe one practical application of total internal reflection. ​

Answers

Answer:

The phenomenon of total internal reflection of light is used in many optical instruments like telescopes, microscopes, binoculars, spectroscopes, periscopes etc. The brilliance of a diamond is due to total internal reflection. Optical fibre works on the principle of total internal reflection.

Explanation:

thank me later but if it wrong. sorry

what feature should be used before a document is printed

Answers

Print preview is a feature that displays on the screen what a hard copy would look like when printed. By using print preview, you can find any errors that may exist or fix the layout before printing, which can save ink or toner and paper by not having to print more than once.

To prevent long page load times for pages containing images, it is best to use a compressed file format such as JPG, as well as appropriate image dimensions and
resolution.
magnification.
orientation.
colors.

Answers

Answer:

The answer to this question is given below in the explanation section.

Explanation:

The given options to this question are:

resolution. magnification. orientation. colors.

The correct option to this question is 1. i.e.

Resolution.

The resolution of an image determines how many pixels per inch an image contains. Image having a higher resolution takes long page load times for a page and lower resolution takes less page load time. So, to prevent long page load times for pages containing images, it is best to use compressed file formation as well as appropriate image dimension and resolution.

While other options are not correct because:

Magnification, orientation, and color does not affect the page load time. Page load time for images only affected by the dimension and resolution of the images.

As an interviewer, it is not necessary to be at eye level with interviewee

True
False

Answers

Answer:

True

Explanation:

Have a great day

Answer:

True

Hope this helps

Gabby needs to perform regular computer maintenance. What should she do? Check all that apply.

Answers

what are the options ???????????

Answer:

all of them but B

Explanation:

Correct on edge

URGENT


You are an art director working for a feature film studio. Create a set for an interior scene of your choosing. Write a description of your scene to give to the principal production team. Include details that an art director would focus time and energy on. Include other production team members with whom you would collaborate. Your description should be at least 150 words.

Answers

Looks Like That’s Something You’d Have To Do On Your Own

ong answer, but make sure to provi
you
reasoning
Sales Company:
W.D. Widgets is a small company that sells widgets. They're mostly made up of salespeople who work with lots of clients.
You've taken over as the sole IT person for this company of 80-100 people.
R teils you to provision a machine for a new employee, you order the hardware directly from a business vendor.
You keep one or two machines in stock, in case of emergency. The users receive a username that you generate for them.
You then give them an orientation on how to login when they start. You currently manage all of your machines using
Windows Active Directory. The company uses only Windows computers. When a new computer is provisioned, you have
to nistallots of sales-specific applications manually onto every machine. This takes a few hours of your time for each
15
machine. When someone has an IT-related request, they email you directly to help them.
Almost all software is kept in-house, meaning that you're responsible for the email server, local machine software, and
instant messenger. None of the company's services are kept on the cloud.
Customer data is stored on a single file server. When a new salesperson starts, you also map this file server onto their
local machine, so that they can access it like a directory. Whoever creates a folder on this server owns that folder and
everything in it. There are no backups to this critical customer data. If a user deletes something, it may be lost for
everyone.

Answers

Answer:

Umm just go what your gut tells you to do

Explanation:

Code used when creating a hyperlink to a specific part of the same page.

Answers

Answer:

Give The Object Or Text You'd Like To Link To A Name.

Take That Name That You've Chosen, And  Then Now Insert It To An Opening HTML Anchor Link Tag.

Place That Complete Opening <a> Tag From Before The Text Or Object You Want To Link It To, Then Now Add A Closing </a> tag after.

(Hope this is correct and hope this helped. Sorry if I'm wrong and you get this wrong)

i can't find my grandson someone help

Answers

Answer:

i'm right here

Explanation:

grandma

Answer:

were did u lose him.

Explanation:

Drag the tiles to the correct boxes to complete the palrs.
Match the types of letters with their descriptions.
letter of interest
cover letter
thank you letter
letter of recommendation
discusses how you meet job requirements
>
reiterates why you're the best candidate for the job
>
tells more about your character and who you are
expresses your interest in working for a company

Answers

Answer:

Letter of interest> tells you more about your character and who you are expresses your interest in working for a company

Letter of recommendation> reiterates why you're the best candidate for the job

Cover letter> discusses how you meet job requirements

Hope this helped!

Answer:

Discusses how you meet job requirements = Cover Letter

Expresses your interest in working for a company = Letter of Interest

Tells more about your character and who you are = Letter of Recommendation

Reiterates why you're the best candidate for the job = Thank You Letter

The ____ represents units of work application software performs in terms of its demand for low-level hardware services.

Answers

Answer:

application demand model

Explanation:

hello hello . please help me​

Answers

Answer:

#include <iostream>  

using namespace std;  

int main()  {  

 int num, check=0;  

 for(int num = 1; num<=100;num++){

for(int i = 2; i <= num/2; i++)  {

     if(num % i == 0)   {  

         check=1;  

         break;         }     }  

 if (check==0)  {       cout <<num<<" ";     }

 check = 0;

 }

 return 0;  

}

Explanation:

This line declares num as integer which represents digits 1 to 100.

A check variable is declared as integer and initialized to 0

 int num, m=0, check=0;  

This for loop iterates from 1 to 100

 for(int num = 1; num<=100;num++){

This iterates from 2 to half of current digit

for(int i = 2; i <= num/2; i++)  {

This checks for possible divisors

     if(num % i == 0)   {  

If found, the check variable is updated to 1

         check=1;  

And the loop is terminated

         break;         }     }  

The following if statement prints the prime numbers

 if (check==0)  {       cout <<num<<" ";     }

 check = 0;

 }

Select all examples of proper keyboarding technique.

Look at the keys while keyboarding.
Keep your hands higher than your elbows.
Sit up straight.
Relax your fingers.
Aim to make no mistakes.

Answers

Answer:

all except keeping your hands higher than your elbows

Answer:

Sit up straight.

Relax your fingers.

Aim to make no mistakes.

Explanation:

Files can be stored on hard drives, network drives, or external drives, but not in the cloud.
True
False

Folders provide a method for organizing files.
True
False

Answers

The first one is false and the second is true

Answer: (1) False, (2) True

Explanation:

A switch is a device that connects multiple computers into a network in which multiple communications links can be in operation simultaneously. True False

Answers

Answer:

True

Explanation:

A network switch is also called switching hub or a bridging hub. It is a device that connects multiple computers into a network in which multiple communications links can be in operation simultaneously. It makes use of Mac addresses in the forwarding of the data link layer (layer 2) of the OSI model. Types include managed switches, unmanaged switches, smart switches but to mention a few.

Write a loop to print all elements in hourly_temperature. Separate elements with a -> surrounded by spaces. Sample output for the given program: (must be in python)
90 -> 92 -> 94 -> 95
Note: There is a space after 95.
------------------------------------------------------------------------------------------------------------------------
hourly_temperature = [90, 92, 94, 95]
for temp in hourly_temperature:
for index,temp in enumerate(str(temp)):
if index != len(temp)-1:
print(temp,'->',end=' ')
else:
print(temp, end='')
print('') # print newline
------------------------------------------------------------------------------------------------------------------------
My expected out is:
90 -> 92 -> 94 -> 95
I keep getting:
90 -> 92 -> 94 -> 95 ->
NOTE: I can't edit the last line "print('') #print newline"

Answers

Answer:

Following are the code to this question:

hourly_temperature = [90, 92, 94, 95]#defining a list that holds values

c= 0#defining a variable c

for temp in hourly_temperature:#defining a for loop to count list values

   c+= 1#defining c variable to increment the value of c

   for index,temp1 in enumerate(str(temp)):#defining for loop for spacing the list value

       if index == len(str(temp))-1 and c!= len(hourly_temperature):#defining if block that checks the length of list

           print(temp1,'->',end=' ')#print value

       elif c == len(hourly_temperature) and index == len(str(temp)) - 1:#defining elif block that checks the length of list

           print(temp1, end=' ')#print value

       else:#defining else block

           print(temp1, end='')#print value

Output:

90 -> 92 -> 94 -> 95  

Explanation:

In the above-given code, a list "hourly_temperature" is declared, in which an integer variable c is declared, that holds an integer value that is equal to 0, and two for loop is declared, and in the first loop is used for count list value, and inside the for loop is uses enumerate method to assigns an index for each item and use the conditional statement to check each list value and provide space in each element value.

Do you think GE will become one of the top 10 U.S. software companies? Why or why not?

Answers

Answer: I do belive GE will be one of the top 10 software companies because each year the software side of GE is growing 20 perecnt per year which is a big deal!

Explanation:

There are different kinds of firms. I think GE will become one of the top 10 U.S. software companies. The world is gradually turning to the production of electric cars and much more appliances and with this, I believe they would grow to the top 10 in no time.

General Electric Company (GE) is known to be one of the top American multinational conglomerate that is seen in New York State.

It has its headquartered in Boston and thy have been ranked 33rd in the 2020 ranking, among the Fortune 500 in the United States using their gross revenue.

Learn more about General Electric Company from

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g 'write a function that takes as input a list and outs a new list containing all elements from the input

Answers

Answer:

def mylist(*args):

   return args

new_list = mylist(2,3,4,5)

Explanation:

The simple python code above defines a function called mylist that receives multiple length of element as a list and returns the list a new list. The "*args" allows the function to receive any number of item and converts them to a list that is returned in the next statement.

The can also be achieved by simply assigning a squared bracket enclosed list to the variable or with the list() constructor.

Write a program that calculates the average of N integers. The program should prompt the
user to enter the value for N and then afterward must enter all N numbers. If the user enters a
negative value for N, then an exception should be thrown (and caught) with the message “ N
must be positive.” If there is any exception as the user is entering the N numbers, an error
message should be displayed, and the user prompted to enter the number again.

Answers

Answer:

def Average(num):

   if num == 0:

       return 0

   val = 0

   trueNum = num

   for i in range(0, num):

       try:

           val += int(input("Enter value (%d out of %d): " % (i+1,num)))

       except Exception as e:

           print ("Error processing value. Non integer detected.")

           try:

               val += int(input("Enter value (%d out of %d): " % (i+1,num)))

           except Exception as e:

               print ("Error processing value. Non integer detected.")

               print ("OMITTING value from average.")

               trueNum -= 1

   return val/trueNum

def main():

   try:

       num = int(input("Enter a value N for amount of items: "))

       if num < 0:

           raise(ValueError)

   except ValueError:

       print ("N must be positive integer.")

       exit(1)

   print("Average: ", Average(num))

   exit(0)

if __name__ == "__main__":

   main()

Explanation:

This program is written in Python to collect some integer value from the user as an upper bound of integers to be input for an average.  Using this upper bound, the program checks to validate it is indeed an integer.  If it not an integer, then the program alerts the user and terminates.  If it is a user, the Average function is called to begin calculation.  Inside the Average function, the user is prompted for an integer value repeatedly up until the upper bound.  Using the sum of these values, the program calculates the average.  If the user inputs a non integer value, the program will alert the user that the value must be an integer and ask again.  If the user again inputs a non integer value, that iteration will be omitted from the final average.  The program this prints the calculated average to the user.

Cheers.

turns on her laptop and gets the error message "OS NOT FOUND." She checks the hard disk for damage or loose cable, but that is not the case. What could be a possible cause?

Answers

It needs an Operating System like a cable or something that will help it operate look for more and double check

If you have 128 oranges all the same size, color, and weight except one orange is heavier than the rest. Write down a C++ Code/Algorithm to search the heavy orange, in how many steps would you be able to find it out?

Answers

Answer:

#include <iostream>

using namespace std;

void Search_heavy_orange(int arr[], int l, int r, int x)

{

int count = 0, m = 0;

while (l <= r) {

 m = l + (r - l) / 2;

 // Check if x is present at mid

 if (arr[m] == x) {

  count++;

 }

 // If x greater, ignore left half

 if (arr[m] < x) {

  l = m + 1;

  count++;

   

 }

 

 // If x is smaller, ignore right half

 else {

  r = m - 1;

  count++;

 }

}

cout << "............For Worst Case......." << endl;

cout << "Orange with heavy weight is present at index " << m << endl;

cout << "Total number of step performed : " << count << endl;

}

int main()

{

// Assuming each orange is 100 gm and the weight of heavy

// orange is 150 gm

int orange_weight[128];

for (int i = 0; i < 127; i++) {

 orange_weight[i] = 100;

}

// At worst case the heavy orange should be at last position

// inside the basket : 127

orange_weight[127] = 150;

// We will pass array , start index , last index and the search element

// as the parameters in the function Search_heavy_orange

Search_heavy_orange(orange_weight, 0, 127, 150);

return 0;

}

Explanation:

Define a toString prototype method that returns the cat's name, gender, and age separated by semicolons.

Answers

Answer:

Following are the program to this question:

import java.util.*;//import package for user input

public class Main//defining main class

{

public static String Cat (String name, String gender, int age)//defining string method Cat that accept parameter value

{

return name + ';' + gender + ';' + age;//return parameter value

}

public static void main(String[] args) //defining main method

{

   String name,gender;//defining String variable

   int age;//defining integer variable

   System.out.println("Enter name, gender and age: ");//print message

   Scanner obx=new Scanner(System.in);//creating Scanner class object for user input

   name=obx.next();//input name value

   gender=obx.next();//input gender value

   age=obx.nextInt();// input age value

   System.out.println(Cat(name,gender,age));//print return method value

}

}

Output:

Enter name, gender and age:  

dani

Female

12

dani;Female;12

Explanation:

In the above-given code, a string method Cat is declared, that accepts three variable "name, gender, and age", inside the method return keyword is used that returns the parameter values.

In the main method, the above parameter variable is declared, which is used to input value from the user-end, and used the print method to print its return value.

Write two statements that each use malloc to allocate an int location for each pointer. Sample output for given program:
numPtr1 = 44, numPtr2 = 99
#include
#include
int main(void) {
int* numPtr1 = NULL;
int* numPtr2 = NULL;
/* Your solution goes here */
*numPtr1 = 44;
*numPtr2 = 99;
printf("numPtr1 = %d, numPtr2 = %d\n", *numPtr1, *numPtr2);
free(numPtr1);
free(numPtr2);
return 0;
}

Answers

Answer:

#include <stdio.h>

#include <stdlib.h>

int main(void) {

   int* numPtr1 = NULL;

   int* numPtr2 = NULL;

   /* Your solution goes here */

   numPtr1 = (int *) malloc(10);

   numPtr2 = (int *) malloc(20);

   *numPtr1 = 44;

   *numPtr2 = 99;

   printf("numPtr1 = %d, numPtr2 = %d\n", *numPtr1, *numPtr2);

   free(numPtr1);

   free(numPtr2);

   return 0;

}

Explanation:

The C library malloc function is used to assign memory locations (in bytes) to variables. It accepts the size parameter and returns a pointer to the specified variable location.

The two malloc statements above assign two memory locations 10 and 20 to the numPtr1 and numPtr2 integer variables respectively.

If a function is called more than once in a program, the values stored in the function's local variables do not _________ between function calls. g

Answers

Answer:

persist

Explanation:

Calling a function Within a program, can be regarded to as specifying of the name of the function when it is within a statement or it could be by the function itself, it possible for a particular function to call another function, in a case wherby a function returns a value, assignment or using the value to variable is not necessary. It should be noted that If a function is called more than once in a program, the values stored in the function's local variables do not persist between function calls

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Which of the following equations of CH4 + Cl2-CCl4+ HCl is balanced? A. O CH4 + Cl2 - CC14+ HCIB.CH4 + Cl2 - CCl4 + 4HCI.CH4 + 4Cl2 - CCl4 + 4HCIDCH4 + 2Cl2 - CCl4 +2HCI Name 10 of The Greatest German Leaders of Your Opinion!!!12345678910 ________________ is a printmaking technique from the beginning of the 18th Century used for the reproduction of red or brown chalk drawings.a.Chalkc.Charcoalb.Pencild.Crayon PLEASE HELP!Read the excerpt from Immigrant Kids, by Russell Freedman.Men, women, and children were packed into dark, foul-smelling compartments. They slept in narrow bunks stacked three high. They had no showers, no lounges, and no dining rooms. Food served from huge kettles was dished not dinner pails provided by the steamship company. Because steerage conditions were crowded and uncomfortable, passengers spent as much time as possible up on the deck. Based on the concrete details in this excerpt, which word best describes how the immigrants felt?1.Anxious2.Awkward3.Embarrassed 4.Distressed Assume that 12 jurors are randomly selected from a population in which 73% of the people are Mexican-Americans. Refer to the probability distribution table below and find the indicated probabilities.0 0+1 0+2 0.00013 0.00074 0.0045 0.01726 0.05427 0.12558 0.21229 0.254910 0.206811 0.101612 0.0229Find the probability of exactly 5 Mexican-Americans among 12 jurors. Round your answer to four decimal places.P(x=5)=Find the probability of 5 or fewer Mexican-Americans among 12 jurors. Round your answer to four decimal places.P(x5)=Does 5 Mexican-Americans among 12 jurors suggest that the selection process discriminates against Mexican-Americans?noyes whats 3(x + 2) = 21?show work please !! There are 125 people on a mountain trail. If 84% of the people on the trail are on a hiking tour, how many people are on the tour solve the following inequality showing all steps -3n+7 Helppppppppp for brain list plz 5 and 6 18% of what number is 22? WHENS MY BDAY I SAID THIS Find how many solutions there are to the given equation that satisfy the given condition.y1 +y2+y3+y4=27, each yi is a nonnegative integer. 33 is 90% of what number? Round to the tenths place. The angle of elevation of a cloud from a point 60m above a lake is 30" and the angle ofdepression of the reflection of the cloud in the lake is 60 find the height of the cloud fromthe surface of the lake.(THIS QUESTION IS FROM INDIA PRE BOARD EXAM) Choose the sentence that uses correct grammar. a Not knowing what to do with her time, Amy went to the library. b Wanting to run a marathon soon, new running shoes were needed. c Feeling exciting for Damari's party, it was hard to fall asleep. d After just putting a coat of paint on the house, it began to rain. From the colonial era until Reconstruction, the capital of Georgia was moved many times in response to what factor?a) changing political influences in the stateb) the changing population center of the statec) the changing geographic center of the stated) changing transportation patterns in the state Does the table below represent a proportional relationship?2345y6789O A. Yes, because all the ratios of y to x are equal to 2.OB. No, because all the numbers are positive.O C. Yes, because all the ratios of yto x are equal to 3.OD. No, because all the ratios of yto x are not equal. If necessary, use / for the fraction bar. Please reduce to simplest termsWhat ratio value is shown by the following double number line? Use / for the fraction bar and do not use spaces. Whoever can answer the MOST with work show will ne marked brainliest. Which force is always pulling but never pushes and is directly influenced by mass