Top 150+ Solved Advanced Operating System MCQ Questions Answer
Q. HTTP is __________. (choose two)
a. a stateful protocol
b. a stateless protocol
c. a protocol that maintains the status of its connection with the client
d. a protocol that does not maintain the status of its connection with the client
Q. In the SETUP state :
a. the server is setup
b. the client is setup
c. the server allocates resources for the client session
d. the client sends requests to the server
Q. In the TEARDOWN state :
a. the server breaks down the connection and releases the resources allocated for the session
b. the client breaks down the connection and releases the resources allocated for the session
c. the system crashes
d. none of these
Q. RTP stands for :
a. real time protocol
b. real time transmission control protocol
c. real time transmission protocol
d. real time transport protocol
Q. The problem with unicast delivery is that the :
a. memory allocation is difficult
b. server must establish a seperate unicast session for each client
c. the routers must support unicasting
d. the clients must be close to the server
Q. The difficulty with multicasting from a practical point of view is : (choose all that apply)
a. memory allocation is difficult
b. server must establish a seperate unicast session for each client
c. the routers must support multicasting
d. the clients must be close to the server
Q. To let a client have random access to a media stream :
a. the protocol used must not be stateless
b. the server must support download
c. the stream should give access rights to the client
d. all of these
Q. The model in which one kernel thread is mapped to many user-level threads is called :
a. many to one model
b. one to many model
c. many to many model
d. one to one model
Q. The model in which one user-level thread is mapped to many kernel level threads is called :
a. many to one model
b. one to many model
c. many to many model
d. one to one model
Q. In the Many to One model, if a thread makes a blocking system call :
a. the entire process will be blocked
b. a part of the process will stay blocked, with the rest running
c. the entire process will run
d. none of these
Q. In the Many to One model, multiple threads are unable to run in parallel on multiprocessors because :
a. only one thread can access the kernel at a time
b. many user threads have access to just one kernel thread
c. there is only one kernel thread
d. none of these
Q. The One to One model allows :
a. increased concurrency
b. decreased concurrency
c. increased or decreased concurrency
d. concurrency equivalent to other models
Q. In the One to One model when a thread makes a blocking system call :
a. other threads are strictly prohibited from running
b. other threads are allowed to run
c. other threads only from other processes are allowed to run
d. none of these
Q. Which of the following is the drawback of the One to One Model ?
a. increased concurrency provided by this model
b. decreased concurrency provided by this model
c. creating so many threads at once can crash the system
d. creating a user thread requires creating the corresponding kernel thread
Q. When is the Many to One model at an advantage ?
a. when the program does not need multi-threading
b. when the program has to be multi-threaded
c. when there is a single processor
d. none of these