When an executing process is interrupted by the processor so that another process can be executed is called Process

(A) Termination

(B) Preemption

(C) Swapping

(D) Rotation

(E) None of the above

Which of the following statement regarding interrupt is incorrect?

(A) If no interrupts are pending, the processor proceeds to the next fetch stage.

(B) Interrupt usually involves some overhead.

(C) In handling multiple interrupts, the processor cannot disable other interrupts while an interrupt is being processed.

(D) When the processor transfers control to the interrupt service routine, it needs to save the Program Status Word and the location of next instruction to be executed.

(E) None of the above.

In Android operating systems, the installation and removal of an app is handled by

(A) Activity Manager

(B) Resource Manager

(C) Package Manager

(D) Content Providers

(E) None of the above

In Android system, an e-mail application that shows a list of new emails, composes an email, or reads an email is called

(A) Service

(B) Thread

(C) Activity

(D) Communication

(E) None of the above.

Which of the following statement regarding Android operating systems is incorrect?

(A) The activities are arranged in first-in-first-out in the order where each activity is created.

(B) Killing one or more activities may reclaim memory.

(C) The user may revoke and return to killed activities.

(D) An Empty process can be used for caching purpose to improve startup time.

(E) None of the above

Please explain briefly.