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3 years ago

Conceptos importantes de red de computadoras

Computers and Technology

1 answer:

Bumek [7]3 years ago

3 0

Answer:

-Consiste en conectar varias redes de computadoras basadas en diferentes protocolos -Requiere la definición de un protocolo de interconexión común sobre los protocolos locales. -El Protocolo de Internet (IP) desempeña este papel, definiendo direcciones únicas para una red y una máquina host.

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Write a program that takes in a positive integer as input, and outputs a string of 1's and 0's representing the integer in binar

mylen [45]

Answer:

The program to this question can be described as follows:

Program:

num= int(input('Enter a number: ')) #input value by user

st = '' #defining string variable

while num > 0: #define loop to calculte values binary number

val= num % 2 # holding remainder (0 or 1) in val variable

st =st+str(val) # store value in str variable

num = num//2 #calculte quotient value

print("binary number is: ",st)

Output:

Enter a number: 5

binary number is: 101

Explanation:

Program description as follows:

Firstly the "num" variable is declared, for user input, then an "st" variable is declared, to calculates user input value binary number.

In the next step, a while loop is declared, inside the loop, another variable "Val" is declared, that holds value remainders, which is added on the "st" variable.

Outside the loop, the print method is used, that prints st variable holds value.

3 0

3 years ago

What are the 49 questions for creat and edit Excel assessment

castortr0y [4]

Answer:

1. What is the keyboard shortcut key to lock cell references in a formula

2. What are the shortcut keys for Auto Sum?

3. What are the shortcut keys to insert a new row in an Excel spreadsheet?

4. What are the shortcut keys to group rows so you can expand/contract a section of data?

5. Which of the following Excel features allows you to select/highlight all cells that are formulas?

6. What are the keyboard shortcut keys to paste special?

7. Assuming cell A1 is displaying the number "12000.7789". What formula should be used to round this number to the closest integer?

8. What are the keyboard shortcut keys to edit formula in a cell?

9. What are the keyboard shortcut keys to insert a table?

10. In which tab of the ribbon can you change Workbook Views to Page Break Preview?

11. What is the best practice for financial modeling in excel?

12. Which of the following features cannot be found in the Data ribbon?

13. The shortcut keys to increase the number of decimal places are

14. What are the shortcut keys to open up the Find and Replace window?

15. Which tab of the ribbon should you go to for removing grid lines on a worksheet?

16. What is a cell address in Excel?

17. What do you mean by Relative cell referencing and Absolute cell referencing in MS Excel?

18. How can you restrict someone from copying a cell from your worksheet?

19. How is a Formula different from a Function in Excel?

20. Mention the order of operations used in Excel while evaluating formulas.

21. What is the difference between count, counta, and countblank?

22. What is the shortcut to add a filter to a table?

23. How can we merge multiple cells text strings in a cell?

24. How many report formats are available in Excel?

25. What is a Pivot Table?

26. How do you find duplicate values in a column?

27. How can you remove duplicate values in a range of cells?

28. What are the wildcards available in Excel?

29. What is Data Validation? Illustrate with an example.

30. How do you create a column in a pivot table?

31. How does a Slicer work in Excel?

32. What are macros in Excel?

33. What is the What-If Analysis in Excel?

34. What is the difference between a function and a subroutine in VBA?

35. What is the difference between This Workbook and Active Workbook in VBA?

36. How do we check whether a file exists or not in a specified location?

37. Write a VBA function to calculate the area of a rectangle.

38. Write a VBA function to check if a number is a prime number or not.

Explanation:

I think these questions are enough for you.

4 0

2 years ago

Create a class Str that subclasses str. Add a method to the subclass that checks if the string does not start with a given strin

Stolb23 [73]

Answer:

#include <iostream>

using namespace std;

class Str{ ///baseclass

public :

string super_str;

string getStr()

{

return super_str;

}

void setStr(string String)

{

super_str=String;

}

};

class str : public Str{ //inheriting Str publicly

public :

string sub_str;

string getstr()

{

return sub_str;

}

void setstr(string String)

{

sub_str=String;

}

bool notstartswith()

{

int n=sub_str.length(); //to find length of substr

bool flag=false;

for(int i=0;i<n;i++) //Loop to check beginning of Str

{

if(super_str[i]!=sub_str[i])

{

flag=true;

break;

}

return flag;

}

};

int main()

{

str s; //object of subclass

s.setStr("Helloworld");

s.setstr("Hey");

if(s.notstartswith()==1) //checking if str is substring of Str

cout<<"Str does not start with str";

else

cout<<"Str starts with str";

return 0;

}

OUTPUT :

Str does not start with str

Explanation:

Above program is implemented the way as mentioned. for loop is being used to check the beginning of the str starts with substring or not.

3 0

3 years ago

How are sorting tools helpful for using spreadsheets and databases? Sorting tools let you locate information by searching for na

Black_prince [1.1K]

Answer:

Sorting tools allow you to organize data into columns and rows that help you locate what you are looking for.

Explanation:

Spreadsheet applications and relational databases are similar in configuration as they are both arranged in rows and columns (tabular). Sorting a spreadsheet or database is useful as it helps to organize data. A sorted spreadsheet or database can be in ascending or descending order which makes it easier and faster to locate rows of data manually or by query.

7 0

2 years ago

Read 2 more answers

Carol purchases a computer. She installs speech recognition software on the computer.

Leno4ka [110]

<u>B. Microphone</u> helps Carol to use the speech recognition software.

<u>Explanation</u>:

A microphone is a hardware device which converts the sound waves in the air into electronic signals. The electrical signals are transferred to a recording medium. Four main types of microphones are as follows:

i) Cardioid

ii) Super cardioid

iii) Omni

iv) Figure 8

Handheld microphone can be used better with the home theater or a karaoke machine. The speech recognition software can be used with the help of microphone. Cabling problem can be avoided with the use of microphone, thus cable trip hazard can also be avoided.

5 0

3 years ago