A. Give one example of each of the following: (20 marks) 1. Computers that are function as the servers and clients in the same time on the network. 2. Application that would not require real-time processing. 3. Information security policy. 4. Quality of service policy in network. 5. Time critical database. B. What is the difference between: (24 marks) 1. Physical topology and logical topology 2. LAN and WLAN 3. Bridge and repeater. 4. Scalability in Data Base Systems and Scalability in Networks. 5. Throughput and Bandwidth 6. Internet and world-wide web C. The tasks associated with coordinating the execution of processes are handled by scheduler and dispatcher within the operating system's kernel. show by diagram only how scheduler and dispatcher work together and cooperate to perform the execution of the process. (14 marks)