Answer: To be useful for most household applications, DC voltage is passed through a step-down transformer.
Explanation: Voltage coming through AC or DC outlets is typically far too high for most household appliances to handle, so the current is passed through a step-down transformer to reduce the voltage to a usable level.
We must be careful of when retrieving messages/data from mobile devices in public because of Bluebugging. It is a form of attack through the use of Bluetooth. It is more than just Bluesnarling and Bluejacking. It goes beyond, allowing the thieves to take control of a device.
In the context of web and network privacy issues, new employees in an organization have to sign an acceptable use policy (AUP) before they access the network. This usage policy<span> or fair use policy, </span> provides guidance and set of rules for using the network and network resources and protects the network and the users.
Answer:
// program in Python to check perfect number
#function to find number is perfect or not
def is_Perfect_Number(n):
#total variable
tot = 1
i = 2
#sum of all divisor of number
while i*i<=n:
if n%i==0:
tot = tot + i + n/i
if tot == n and n != 1:
return 1
i = i+1
return 0
#read until user enter a perfect number
while True:
#read integer
num = int(input("Input an integer: "))
#call the function
if(is_Perfect_Number(num)):
print(num,"is perfect number")
#if perfect number break
break
else:
print(num,"is not a perfect number")
#ask again
print("try again.")
Explanation:
Read number from user and then call the function is_Perfect_Number() with parameter "num".This will find the sum of all divisor of number.If sum is equal to number then it will return 1 else return 0.If the number is not perfect then it will again ask to enter a number until user enter a perfect number.
Output:
Input an integer: 24
24 is not a perfect number
try again.
Input an integer: 28
28 is perfect number
Answer:
•Determine your IP address.
•Verify physical connectivity to the network.
•Check that you have a logical connection to the network.
•Find out what path network traffic takes to get to its destination.
Translate from DNS names to IP addresses.
