Answer:
The code to calculate the area of a circle is:
from math import pi
def circleArea(radius):
if radius > 0:
return pi * (radius ** 2)
else:
return None
if __name__ == '__main__':
radius = 5
print("Radius: {} Area: {}".format(radius,circleArea(radius)))
Explanation:
A detailed explanation of each line of code is given below.
#Define the number pi used to calculate the area
from math import pi
#We define a function that calculates the area of a circle
def circleArea(radius):
#Check if the radius is valid ( radius > 0) since there aren´t negative radius
if radius > 0:
#Compute the area formula for a circle 
return pi * (radius ** 2)
else:
#Return None if the radius is invalid
return None
#Run the function we´ve defined
if __name__ == '__main__':
#Define a radius
radius = 5
#Call the function and parse the radius through it, then print the result
print("Radius: {} Area: {}".format(radius,circleArea(radius)))
The CDP protocol runs on CISCO routers and shares information between CISCO devices. CDP stands for Cisco Discovery Protocol. It is a protocol on Layer 2 (Data -Link layer) of the OSI model that enables CISCO devices to share information between them. The information includes for example the <span>operating system version and IP address.</span>
Answer:
implementing a firewall
installing antivirus software
Explanation:
implementing a firewall: implementing this you could prevent the inbound and outbound not permitted connections to your internal network.
installing antivirus software: We need to install a antivirus software in the endpoints to detect and delete possible infections.
Answer:
Active Directory
Explanation:
Active Directory (AD) is a Microsoft product that consists of several services that run on Windows Server to manage permissions and access to networked resources.
Active Directory categorizes objects by name and attributes. For example, the name of a user might include the name string, along with information associated with the user, such as passwords and Secure Shell (SSH) keys.
