NB uses the time-based model to evaluate the security level of Accounting information System (AIS). The currency wym co as following Preventive control (P) - 12 Seconds Detective control (D) - 5 Seconds Corrective control (C)- Seconds NBB management believes that the security level of the AIS is low, and it must be increased, which require to spend 103%). The powervenko the AIS security has 4 alternatives as following: - Alternative I would increase by 5 Seconds Alternative 2 would decrease by 4 Seconds Alternative 3 would increase P by 3 Seconds and reduce by 4 Seconds. Alternative 4. would increase P by 4 Seconds and reduce by 2 Seconds. Answer the following questions: 1. Does the AIS of BBK currently secure? And why? 2 Show the Time-based model for Alternative 1 3. Show the Time-based model for Alternative 2 4 Show the Time-based model for Alternative 3 5. Show the Time-based model for Alternative 4 Since cach alternative has the same cost, which do you think would be the most cost-effective choice? And why? NBB management believes that the security level of the AIS is low, and it the AIS security has 4 alternatives as following: Alternative I would increase P by 5 Seconds Alternative 2 would decrease C by 4 Seconds Alternative 3 would increase P by 3 Seconds and reduce C by 4 Seconds . Alternative 4. would increase P by 4 Seconds and reduce D by 2 Seconds. Answer the following questions: 1. Does the AIS of BBK currently secure? And why? 2. Show the Time-based model for Alternative 1 3. Show the Time-based model for Alternative 2 4. Show the Time-based model for Alternative 3 5. Show the Time-based model for Alternative 4 6. Since each alternative has the same cost, which do you think would be the most cost-effective choice? And why? For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac), BIUS Paragraph Arial 10pt I. X P A 111