State whether true or false.

April 22, 2021 – by admin 1

i) Multithreading IS useful for application that perform a number of essentially independent tasks that do not be serialize(d)

ii) An example of multithreading is a database server that listens for and process numerous client request.

A. i-True, ii-False

B. i-True, ii-True

C. i-False, ii-True

D. i-False, ii-False

Submitted By : Ahsan Ali Soomro…

______ programs can be used to accomplish functions indirectly that an unauthorized user could not accomplish directly.

April 22, 2021 – by admin 1

A. Zombie

B. Worm

C. Trojan Horses

D. Logic Bomb

Submitted By : Ahsan Ali Soomro…

Which of the following malicious program do not replicate automatically?

April 22, 2021 – by admin 1

A. Trojan Horse

B. Virus

C. Worm

D. Zombie

Submitted By : Ahsan Ali Soomro…

The _____ is code embedded in some legitimate program that is set to “explode” when certain conditions are met.

April 22, 2021 – by admin 1

A. Trap doors

B. Logic Bomb

C. Trojan horse

D. Virus

Submitted By : Ahsan Ali Soomro…

A direct method of deadlock prevention is to prevent the occurrence of _____.

April 22, 2021 – by admin 0

A. Mutual exclusion

B. Hold and wait

C. Circular waits

D. No preemption

Submitted By : Ahsan Ali Soomro…

The following conditions of policy must be present for a deadlock to be possible.

April 22, 2021 – by admin 0

i) Mutual exclusion ii) Hold and wait

iii) No preemption iv) Circular wait iii only

A. i, ii and iii only

B. ii, iii and iv only

C. i, iii, and iv only

D. All i, ii, iii and iv

Submitted By : Ahsan Ali Soomro…

_______ Can be defined as the permanent blocking of a set of processed that either complete for system resources or communicate with each other.

April 22, 2021 – by admin 0

A. Deadlock

B. Permanent lock

C. Starvation

D. Mutual exclusion

Submitted By : Ahsan Ali Soomro…

_______ Techniques can be used to resolve conflicts, such as competition for resources, and to synchronize processes so that they can cooperate.

April 22, 2021 – by admin 0

A. Mutual Exclusion

B. Busy Waiting

C. Deadlock

D. Starvation

Submitted By : Ahsan Ali Soomro…

_______ is a condition in which there is a set of concurrent processes, only one of which is able to access a given resource or perform a given function at any time.

April 22, 2021 – by admin 0

A. Mutual Exclusion

B. Busy Waiting

C. Deadlock

D. Starvation

Submitted By : Ahsan Ali Soomro…

______ are very effective because a mode switch is not required to switch from one thread to another.

April 22, 2021 – by admin 0

A. Kernel-level threads

B. User-level threads

C. Alterable threads

D. Application level threads

Submitted By : Ahsan Ali Soomro…