5. Consider the following bit pattern: 11100110. Perform the following operations in order circular left shift operation, then a logical OR of the result of left shift operation with its two's complement, finally XOR the result with the original bit pattern. [8 Marks] [6 Marks) You were given a computer that works based on Turing model, what should you do in order to convert it to a Von Neumann model? [6 Marks When a computer needs a piece of information, does it immediately perform the memory fetch operation? If not, what does it do? [6 Marks) You are the head of the IT department at MTC and it was reported to you that SITS web application which stores student's exam records is inaccessible to both lecturers and students. Determine and explain the most likely computer attack that could have caused this problem. [10 Marks] 9. Use the additive cipher with k = 5 to encrypt the plaintext "MTCS