OS The Linux System

a set of pages that are actively used together

a space in memory

an area near a set of processes

none of the mentioned

has which identifier

has not been lost

has been sent

all of the mentioned

only the exec executes as a separate process

the program specified in the parameter to exec will replace the entire process

the exec is ignored as it is invoked by a thread

none of the mentioned

it can do more than one task at a time

it can do only one task at a time, but much faster

it has to use only one thread per process

none of the mentioned

almost never executed

executed very often

executed periodically

none of the mentioned

it is very expensive

many frames can be allocated to a process

only a few frames can be allocated to a process

a process cannot control its own page – fault rate

the turnaround time increases

the effective access time increases

the effective access time decreases

turnaround time & effective access time increases

number of CPUs in the system

amount of physical memory

expected number of concurrent client requests

all of the mentioned

increased concurrency provided by this model

decreased concurrency provided by this model

creating so many threads at once can crash the system

creating a user thread requires creating the corresponding kernel thread

queue algorithms

stack algorithms

string algorithms

none of the mentioned