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maria [59]
3 years ago
14

What is a fire wall and how does it work

Computers and Technology
1 answer:
Ostrovityanka [42]3 years ago
8 0

Answer:

a firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules

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In a folder hierarchy, the top level is referred to as which of the following?
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Answer:

B. root

Explanation:

Every user in Linux is assigned a folder from which they can store their files. The interpreter allows you to abbreviate your route with the “~” symbol. The ls command without any additional data shows the files in the current directory, but if after the name of the command a path is written, it shows the files in that path. Therefore, the ls ~ command shows the files in the user's folder.

In addition to the folders and files created by the user or programs, every Linux folder has two subfolders defined by default:

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“.”: It is the folder itself that appears as if it were also a subfolder. It can be considered as a "self-reference" or pointer to itself.

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3 years ago
Meenakshi has created a presentation of six slides. The slides have the same background, but s wants to change the background of
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• Write a program that asks the user to enter a number of seconds. • If there are less than 60 seconds input, then the program s
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Answer:

The solution code is written in Python:

  1. sec = int(input("Enter number of seconds: "))
  2. if(sec >=60):
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  5. else:
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Explanation:

Firstly, use input function to prompt user to enter number of seconds and assign the input value to variable sec (Line 1).

Next, create an if statement to check if the sec is bigger or equal to 60 (Line 3). If so, we user // operator to get minutes and use % operator to get the seconds (Line 4 - 5).

Then we use print function to print the minutes and seconds (Line 9).

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