A. State whether the following statements are true or false: (32 marks) 1. Client and server software usually runs on separate computers, and it is not possible for one computer to carry out both roles at the same time. 2. Application that we installed on hard disk and icon of which is visible to us is called as an active entity. 3. A bridge produces a more efficient system than that produced by a switch. 4. System software like operating system provides the unique functionality required to perform the particular tasks for with the computer is used. 5. Network services connect the individual end devices to the network and can connect multiple individual networks to form an internetwork. 6. A process is a set of instructions. In contrast, a program is the activity of executing those instructions. 7. Usually, WLANS are managed by multiple service providers. 8. Allowing several processes to share time in a multiprogramming system is less efficient than executing each of them to completion one after the other. 9. A switch is essentially a bridge with multiple connections, allowing it to connect several types of networks rather than just two. 10. Scheduler is the component of an operating system that is executed as the result of an interrupt signal. 11. Multitasking is the phenomenon of a user performing more than one activity at the same time. 12. A router connects two networks to form an internet in which the original two networks continue to function as independent networks. 13. Concurrency and simultaneously in the database refer to the same concept where many users can access the database at the same time without any interference. 14. One of the disadvantage of centralized database is that a failure of the server running the database will prevent all users from using the database. 15. A process that is waiting would not be able to advance if given a time slice was interrupted by input action, whereas a process that is ready would be able to continue execution if it is given a time slice. 16. Load balancing refers to the task of assigning tasks to the processors in a way that leads to efficient use of all processors. B. What is the function of each of the following: (10 marks) 1. Forwarding table in a router. 2. Process table in coordinating the machine's activities