This part consists of 5 questions. You should attempt all questions. You should dedicate approximately 40 minutes for this part. Question 1: [6 marks] List four restrictions on the Python variable name. Question 2: [6 marks] Compare between private and public clouds regarding management operation and by whom each is owned. Question 3: [6 marks] Define briefly the following: a. Identification. b. Geofence c. Salting. Question 4: [6 marks] Talk briefly about the two factors that affect the coverage of Mobile phones. Question 5: [6 marks] There are some advantages of using symmetric over Asymmetric Encryption. List three of them