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earnstyle [38]
2 years ago
7

What are some ways to accomplish full-duplex (FDX) digital communications on guided medium at the physical layer (OSI Layer 1)?

a. Separate digital receive and transmit paths onto their own physical channels/circuits b. Modulate receive and transmit channels onto different carrier frequencies, thus allowing FDX on the same physical medium c. Separate transmit and receive channels on the same physical medium by separating them in time (i.e., TDM) d. All of the above
Computers and Technology
1 answer:
labwork [276]2 years ago
6 0

Answer:

d. All of the above

Explanation:

Physical layer is the lowest layer of the OSI reference model that deals with the setup of physical connection to the network and with transmission and reception of signals.

Full duplex (FDx) is a bidirectional type of communication system where two end nodes send and receive data signals at the same time, and a single carrier is simultaneously used for dual communication.

To send or receive data, the participating nodes in a Full Duplex system do not have to wait for a free carrier/medium. It employs a medium that has at least two internal channels - one for sending and one for receiving.

Based on the above explanations, options A, B and C are valid and are correct ways to accomplish full-duplex (FDX) digital communications on guided medium at the physical layer (OSI Layer 1). There all of them are correct.

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I’ve been struggling with this for a little of u could help that would be great.
e-lub [12.9K]

Answer:

Whether the game is played on WiFi or Cellular data.

Explanation:

You wouldnt be able to do any of the other choices without some type of internet connection.

6 0
2 years ago
Social media sites like stuffdot are often classified based on two factors; self-disclosure and ________
Artist 52 [7]

Answer:

The answer to this question is "Media Richness".

Explanation:

Media Richness is a theory, that says Media has the power to convey the information that is needed in communication. This depends on whether uncertain times which type of data will be used, which is explained by the Mass Communication.  

  • Media Richness is the amount in which two social members make audio, visual and private interaction.
  • It provides face to face communication that was released in 1987 which ranks this as the richest channel for mediated communication.
8 0
3 years ago
Please create a brute force password cracker using python
serg [7]

Answer:

0

2

I need to make small programs for school to brute force crack different types of passwords; I'm looking to create a brute force python code that will run through every possible combination of alphabetical and alphanumerical passwords and give me the password and the amount of time it took to crack.

I did the same with purely numerical passwords and got this:

import datetime as dt

Password4 = 123456

def crack_password():

   start = dt.datetime.now()

   for n in range(1000000):

       password_guess = '{0:04d}'.format(n)

            if password_guess == str(Password4):

               end = dt.datetime.now()

               print("Password found: {} in {}".format(password_guess, end - start))

              break

   guesses = crack_password()

I then tried to do something somewhat similar for alphabet/alphanumerical passwords but did not work whatever I tried:

   import random

   letters = [str(i) for i in range('a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p')]

   s = [''.join([a,b,c,d,e,f,g,h]) for a in letters for b in letters for c   in letters for d in letters for e in letters for f in letters for g in letters  for h in letters]

   random.shuffle(s)

   real_password = 'aaaaaaaa'

   i = 0

Explanation:

8 0
3 years ago
Despite the passage of several laws defining and addressing computer crime, accessing a computer system without authorization is
Molodets [167]

Answer:

False

Explanation:

7 0
3 years ago
General purpose application include all the following except
Citrus2011 [14]

Answer: Web authoring

Explanation:

Here's the complete question:

General-purpose applications include all of the following except:

Select one:

a. web authoring

b. word processors

c. spreadsheets

d. database management systems

General purpose application refers to the application which can be used for different tasks. Examples of General purpose application are Spreadsheet, Word processors, Presentation software, Database management system etc.

The general purpose applications are quite different from the specialized application which focuses on a particular discipline. Therefore, the option that isn't a general purpose application is the web authoring.

8 0
3 years ago
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