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Veseljchak [2.6K]
3 years ago
5

What is the encryption cipher that was the precursor to des??

Computers and Technology
1 answer:
Elanso [62]3 years ago
8 0
DES works by using the same key to encrypt and decrypt a message, so both the sender and the receiver must know and use the same private key. Once the go-to, symmetric-key algorithm for the encryption of electronic data, DES has been superseded by the more secure Advanced Encryption Standard (AES) algorithm.
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You saved a file on drive C go your computer. You want to find and open the file. Which of the following programs will you use t
Sindrei [870]

Group of answer choices.

A. Spreadsheet program

B. Microsoft Windows Explorer

C. Word-processing program

D. Notepad

Answer:

B. Microsoft Windows Explorer

Explanation:

A software can be defined as a set of executable instructions (codes) or collection of data that is used typically to instruct a computer how to perform a specific task and to solve a particular problem.

In this scenario, you saved a file on drive "C" of your computer. The software program or application which you would use to find and open the file is Microsoft Windows Explorer.

The Microsoft Windows Explorer is an inbuilt resources that avails the end users the ability to perform various operations on a file and it provides the folder paths used for the storage of user files. It is the default program for file and folder documents on a computer system.

6 0
3 years ago
Create a program that allows the user to input a list of first names into one array and last names into a parallel array. Input
natita [175]

Answer:

The program in Python is as follows:

firstName = []

lastName = []

while True:

   fName = input("First Name: ")

   lName = input("Last Name: (Enter to quit): ")

   if not lName:

       break

   firstName.append(fName)

   lastName.append(lName)

for i in range(len(firstName)):

   print(firstName[i] . lower()+"."+lastName[i] . lower()+" mycollege . edu")

Explanation:

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

Download txt
8 0
3 years ago
Which 1898 film did George Melies create using camera trickery to create a illusion in which we now
8_murik_8 [283]

Answer:

four heads are better than one

Explanation:

4 0
3 years ago
A hub transmits all incoming messages to all of its ports except the port where the messages came in. A switch usually sends mes
leonid [27]

Answer:

MAC Addresses (Destination and Source MAC address)

Explanation:

A switch has 3 primary functions:

  • Forward frames
  • Learn addresses
  • Avoid loops

An Ethernet frame has the header, data and trailer and there are two specific fields in the header that helps the switch to know where to send data in future transmissions.

  • destination MAC address
  • source MAC address

every Ethernet frame has this and when the frame hits a switch or any device, any device can look at it ( an Ethernet frame ) and know where it is suppose to go and where it came from.

Every switch has a MAC address table where it stores MAC addresses of different computers on the network.

Example:

When a PC1 sends a frame to PC2 through a switch, the switch looks at the header of the Ethernet frame for the source mac address and adds the source MAC address to its MAC address table and also the port that it came through.

simply put:

A switch looks at the source MAC address to see if it knows it already, if it does. Great! no need to add it again to it's address table.

If it doesn't, it adds it's source address and the port that the frame came from.

This basically how the switch populates its MAC address table.

3 0
3 years ago
Read 2 more answers
Alternating Current or AC is better for use in ___________, while DC direct current is needed in _________ .
PIT_PIT [208]
<span>C electric power transmisson and electronics</span>
6 0
3 years ago
Read 2 more answers
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