def main():
print("\nNetworkID and HostID of IPv4 Address:")
InputIPAddress = input("Enter a valid IPv4 address: \n")
try:
NetworkAndHostIDFinder(InputIPAddress)
print('\n')
except CE.NoInputError:
print(CE.NoInputError())
print("Try again")
main()
except CE.InputOutOfRangeError:
print(CE.InputOutOfRangeError())
print("Try again")
main()
except CE.InputNotANumberError:
print(CE.InputNotANumberError())
print("Try again")
main()
except CE.InvalidInputError:
print(CE.InvalidInputError())
print("Try again")
main()
finally:
print("Main Function executed successfully")
return 0
def main():
print('\nCyclic Redundancy Check:\n')
print("Sample input Polynomial:")
print("x3+x2+1")
print("x7+x4+x2+x1")
print("\nCoefficient of all non zero terms of polynomial must be 1")
print("Constant term must be 1\n")
InputDividendPolynomial = input(
"Enter Message Polynomial (Dividend Polynomial):\n").strip()
InputDivisorPolynomial = input(
"Enter Check Polynomial (Divisor Polynomial):\n").strip()
try:
ValidityChecker(InputDividendPolynomial, InputDivisorPolynomial)
print('\n')
except CE.NoInputError:
print(CE.NoInputError())
print("Try again")
main()
except CE.InputLengthMismatchError:
print(CE.InputLengthMismatchError())
print("Try again")
main()
except CE.InputNotANumberError:
print(CE.InputNotANumberError())
print("Try again")
main()
except CE.InvalidInputError:
print(CE.InvalidInputError())
print("Try again")
main()
finally:
print("Main Function executed successfully")
return 0
def main():
print("\nDistance Vector Routing Algorithm")
NumberOfNodes = input("Enter the number of nodes in the network: \n")
for char in NumberOfNodes:
if char not in list("0123456789"):
raise CE.InputNotANumberError
NumberOfNodes = int(NumberOfNodes)
try:
CostMatrixOfNodes = MinCostMatrixFinder(NumberOfNodes)
print('\n')
for startingNode in range(NumberOfNodes):
for endingNode in range(NumberOfNodes):
print(
f"Min distance between {startingNode + 1} and {endingNode + 1} is {CostMatrixOfNodes[startingNode][endingNode]}")
print('\n')
print('\n')
except CE.NoInputError:
print(CE.NoInputError())
print("Try again")
main()
except CE.InputLengthMismatchError:
print(CE.InputLengthMismatchError())
print("Try again")
main()
except CE.InputNotANumberError:
print(CE.InputNotANumberError())
print("Try again")
main()
except CE.InvalidInputError:
print(CE.InvalidInputError())
print("Try again")
main()
finally:
print("Main Function executed successfully")
return 0
def main():
print('\nHamming Distance Calculator: \n')
InputString1 = input("Enter a binary data string: \n")
InputString2 = input("Enter another binary data string: \n")
try:
CalculateHammingDistance(InputString1, InputString2)
print('\n')
except CE.InputNotANumberError:
print(CE.InputNotANumberError())
print("Try again")
main()
except CE.InputLengthMismatchError:
print(CE.InputLengthMismatchError())
print("Try again")
main()
except CE.InvalidInputError:
print(CE.InvalidInputError())
print("Try again")
main()
except CE.NoInputError:
print(CE.NoInputError())
print("Try again")
main()
finally:
print("Main Function executed successfully")
return 0
def main():
print("\nLink State Routing Algorithm: ")
NumberOfNodes = input("Enter the number of nodes in the network: \n")
for char in NumberOfNodes:
if char not in list("0123456789"):
raise CE.InputNotANumberError
NumberOfNodes = int(NumberOfNodes)
StartNode = input(
f"Enter a Start Node in the range 0 to {NumberOfNodes}: \n")
for char in StartNode:
if char not in list("0123456789"):
raise CE.InputNotANumberError
StartingNode = int(StartNode)
if not 0 <= StartingNode < NumberOfNodes:
print("Invalid Start Node")
raise CE.InvalidInputError
try:
MinCostMatrixFinder(NumberOfNodes, StartingNode)
print('\n')
except CE.NoInputError:
print(CE.NoInputError())
print("Try again")
main()
except CE.InputLengthMismatchError:
print(CE.InputLengthMismatchError())
print("Try again")
main()
except CE.InputNotANumberError:
print(CE.InputNotANumberError())
print("Try again")
main()
except CE.InvalidInputError:
print(CE.InvalidInputError())
print("Try again")
main()
finally:
print("Main Function executed successfully")
return 0
def main():
print('\nCharacter stuffing and destuffing:\n')
InputString = input("Enter a string of characters:\n")
FlagSequence = input("Enter the flag sequence:\n")
EscapeSequence = input("Enter the escape sequence:\n")
try:
StuffedCharacterString = CharacterStuffing(
InputString, FlagSequence, EscapeSequence)
CharacterDestuffing(StuffedCharacterString,
FlagSequence, EscapeSequence)
print('\n')
except CE.InvalidInputError:
print(CE.InvalidInputError())
print("Try again")
main()
except CE.NoInputError:
print(CE.NoInputError())
print("Try again")
main()
finally:
print("Main Function executed successfully")
return 0
def main():
print('\nBit stuffing and destuffing:\n')
InputString = input("Enter a binary data string:\n")
try:
StuffedBitString = BitStuffing(InputString)
BitDestuffing(StuffedBitString)
print('\n')
except CE.InputNotANumberError:
print(CE.InputNotANumberError())
print("Try again")
main()
except CE.InvalidInputError:
print(CE.InvalidInputError())
print("Try again")
main()
except CE.NoInputError:
print(CE.NoInputError())
print("Try again")
main()
finally:
print("Main Function executed successfully")
return 0