Answer:
Option d is the correct answer for the above question.
Explanation:
- Authentication is a process that enables the user to enter the system. This process helps to secure the data. It is because with the help of this only valid users can enter the system. In this process, the system asks some unique information from the user which can only be known to the valid user.
- Some systems put two types of authentications one is some information about the valid user and the other is a fingerprint scan that takes the data of the user finger and matches with their user name and password. If it matches then only he can enter into the system.
- The above question asks about the mechanism which is used for multifactor authentication. This authentication is known as a fingerprint scan. So the option D is the correct answer while the other is not because:-
- Option 'a' states about the username which is used in the first authentication.
- Option b states about pin which can be used in the place of username.
- Option c states about the security question which is used when the user forgets the password.
Answer:
The height of the ball after t seconds is h + vt - 16t 2 feet:
def main():
getInput()
def getInput():
h = int(input("Enter the initial height of the ball: ")) # Adding the int keyword before input() function
v = int(input("Enter the initial velocity of the ball: ")) # Same as above
isValid(h,v)
def isValid(h,v):
if ((h <= 0) or (v <= 0)):
print("Please enter positive values")
getInput()
else:
maxHeight(h,v)
def maxHeight(h,v):
t = (v/32)
maxH = (h + (v*h) - (16*t*t))
print ("\nMax Height of the Ball is: " + str(maxH) + " feet")
ballTime(h, v)
def ballTime(h,v):
t = 0
ballHeight = (h + (v*t) - (16*t*t))
while (ballHeight >= 0):
t += 0.1
ballHeight = (h + (v*t) - (16*t*t))
print ("\nThe ball will hit the ground approximately after " + str(t) + " seconds")
# Driver Code
main()
When a cache block has been modified since being read from main memory the dirty bit is set.
Two-way communication is when one person is the sender and they transmit a message to another person, who is the receiver. When the receiver gets the message, they send back a response, acknowledging the message was received.
Answer:
this is plug and play
Explanation:
plug and play or PnP is a standard that has been in use commonly since around the beginning of the millenia. pnp devices usually work without needing any drivers manually installed, they use generic ones included with the operating system most of the time.
