Threads

Question 1

Which one of the following is not the reason to used thread in OS ?

A. Economy
B. Responsiveness
C. Resources sharing
D. Scalability
E. versatile

Answer 1

E. versatile

Question 2

Which one of the following is the difference between thread and process?

a. Thread share CPU and only one thread active at a time
b. Threads within processes execute sequentially
c. Threads can create children
d. Threads are not independent of one another
e. none of mentioned

Answer 2

d. Threads are not independent of one another

Question 3

3. A single thread of control allows the process to perform
   a. only one task at a time
   b. only two task at a time
   c. only exactly two tasks at a time
   d. multiple tasks at a time
   e. all of the mentioned

Answer 3

a. only one task at a time

Question 4

Which one of the following is shared by threads?
a. stack
b. program counter
c. code section
d. register set
e. none of the mentioned

Answer 4

c. code section

Question 5

Which one of the following is not the advantage of a User-level-thread?

a. A user-level threads package can be implemented on an OS that does not support threads
b. Fast and efficient
c. Simple management
d. there is a lack of coordination between threads and OS kernel
e. User-level thread does not requires modification to OS

Answer 5

d. there is a lack of coordination between threads and OS kernel

Question 6

A process can be:

a. single threaded
b. multithreaded
c. two threaded
d. a & b
e. None of the mentioned

Answer 6

d. a & b

a. single threaded
b. multithreaded

Question 7

Choose all types of Parallelism
a. Data Parallelism
b. Round Parallelism
c. Task Parallelism
d. Work Parallelism
e. None

Answer 7

a. Data Parallelism

c. Task Parallelism

Question 8

which one of the following is not the multicore programming challenge ?

a. Balance
b. Data splitting
c. Data Dependency
d. Scalability
e. testing and debugging

Answer 8

d. Scalability

Question 9

Which one of the following is the similarity between threads and process ?

a. All threads can access every address in the task
b. Threads are design to assist one other
c. Threads can create children
d. Threads are not independent of one another
e. none of the mentioned

Answer 9

c. Threads can create children

Question 10

Which one of the following is not a multithreading model ?

a. Many-to-one
b. Many to many
c. one-to-one
d. two to one
e. none of the mentioned

Answer 10

d. two to one

Question 11

Which one of the following is not shared by threads ?
a. data section
b. program counter
c. code section
d. OS resources
e. none of the mentioned

Answer 11

b. program counter

Question 12

Which one of the following id the advantage of Kernel-level-threads ?

a. Simple representation
b. Kernel has full knowledge of all threads
c. Simple management
d. There is a lack of coordination between threads and OS kernel
e. The kernel-level threads are slow and inefficient

Answer 12

b. Kernel has full knowledge of all threads