The subject is security

Q3: The brute force attack for the lowwer ease, numbers) required at most how many numbers of steps tay password which contains& charscees u i If the total average is 69.7 and IS departument average is 64.75. Find CS department average grade. G Foints) Ali Waleed Bader Khaled Ahmed Hamad Saif Khalifa Aref IS CS s1 Q5: How can replay attack be implemented, if the encrypted key has been shared only between sender and recipient. (2 Points)