Match the instructions on the left with the corresponding mode on the right. Read the clock Privileged Switch to kernel mode Privileged 1/O control Privileged Issue a trap instruction Either privileged or not Set value of timer Privileged Interrupt management Either privileged or not What do you know about the cache? Answer whether the statement on the left is true or false. False Caches are not useful when two or more components need to exchange data. True Caches provide buffers of intermediate speed between the components data transfer. The data in the components need to be kept consistent with the data in the cache. True False There is no need to update the cache if there is a change in the value of the data of the component. False If the cache and the component have equivalent state-saving capacity a component may be eliminated by an equal-sized cache. False There is no need for a component to be eliminated even if the cache is affordable, because faster storage tends to be more expensive. Match the statements on the left with the correct term on the right. Background-services Processes that launched at boot time. These programs are constantly running system- program processes, such as the network. Programming-language suppe Programs a assembled or compiled and loaded into memory to be executed. System design Programs that create, delete, copy, rename, print, dump, and generally manipulate files and directories File management Programs for editing texts to create and modify the content of files stored on disk or other storage devices. Hardware information Programs that ask the system for the date, time, amount of available memory or disk space, number of users, or similar status. File management Compilers, assemblers, debuggers, and interpreters for common programming languages