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q provide two programming instances in which multithreading provides better performance than a single-threaded solutionanswer 1 a web server that
q presume that a distributed system is susceptible to server failure what mechanisms would be needed to guarantee the exactly once semantics for
q once more considering the rpc mechanism consider the exactly once semantic does the algorithm for implementing this semantic implement correctly
q when a process creates a fresh process using the fork operation which of the following state is shared among the parent process and the child
q the sun ultra sparc processor has numerous register sets that describe the actions of a context switch if the new context is previously loaded into
q palm os provides no signifies of concurrent processing discuss three major complications that concurrent processing adds to an operating system
q how could a system be designed to allow a choice of operating systems to boot from what would the bootstrap program need to doanswer delieve a
q why do several systems store the operating system in firm ware and others on diskanswer for certain devices such like handheld pdas and cellular
q what are the major advantages of the microkernel approach to system designanswer benefits usually include the followinga adding a new service
q what is the purpose of system callsanswer system calls permit user-level processes to request services of the operating
q error detection in operating systemerror detection- error detection take places at both the hardware and software levels at the hardware level
q explain message passing among systemscommunications- message passing among systems requires messages to be turned into packets of information and
q explain the file-system manipulationfile-system manipulation there is several details in file allocation creation deletion and naming that users
q define input - output operationsserial lines disks tapes and other devices should be communicated with at a very low level the user require only
q how program execute in operating systemprogram execution- the operating system fills the contents or sections of a file into memory as well as
q what is the major advantage of the layered approach to system design what are the de-merits of using the layered approachanswer as in all cases of
q what is the use of system programsanswer system programs are able to be thought of as bundles of useful system calls they provide fundamental
q what system calls have to be implementing by a command interpreter or shell in order to start a new processanswer in the unix systems a fork system
q what is the use of the command interpreter why is it generally separate from the kernelanswer it reads commands from the user or else from a file
q what are the three main activities of an operating system in regard to secondary-storage managementanswer1 free-space management2 storage
q what are the three main activities of an operating system in regard to memory managementanswera keep follows of which parts of memory are currently
q what are the five main activities of an operating system in regard to process managementanswera the creation as well as deletion of both user and
q what is the use of system callsanswer system calls permit user-level processes to request services of the operating
q is the internet a lan or else a wananswer the internet is a wan as the a variety of computers are located at geographically different places and
q timers could be utilized to compute the current time provide a little description of how this could be accomplished answer a program could utilize