Operating System (OS) The Memory Buffer Register (MBR) is a hardware memory device which denotes the location of the current instruction being executed. contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write". None of these is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory. contains the address of the memory location that is to be read from or stored into. is a hardware memory device which denotes the location of the current instruction being executed. contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write". None of these is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory. contains the address of the memory location that is to be read from or stored into. ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) In which of the storage placement strategies a program is placed in the largest available hole in the main memory? worst fit buddy None of these best fit first fit worst fit buddy None of these best fit first fit ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) Page-map table is All of these None of these Used for address translation A directory A data file All of these None of these Used for address translation A directory A data file ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) The process of transferring data intended for a peripheral device into a disk (or intermediate store) so that it can be transferred to peripheral at a more convenient time or in bulk, is known as None of these multiprogramming spooling virtual programming caching None of these multiprogramming spooling virtual programming caching ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) A page fault occurs when a program accesses a page of memory is an access to a page not currently in memory is a reference to a page belonging to another program is an error is a specific page None of these occurs when a program accesses a page of memory is an access to a page not currently in memory is a reference to a page belonging to another program is an error is a specific page None of these ANSWER DOWNLOAD EXAMIANS APP
Operating System (OS) A relationship between processes such that each has some part (critical section) which must not be executed while the critical section of another is being executed, is known as multitasking multiprogramming semaphore None of these mutual exclusion multitasking multiprogramming semaphore None of these mutual exclusion ANSWER DOWNLOAD EXAMIANS APP
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