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MCQ

What is a trap/exception?

hardware generated interrupt caused by an error

software generated interrupt caused by an error

user generated interrupt caused by an error

none of the mentioned

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MCQ

In an interrupt driven input/output __________

the CPU uses polling to watch the control bit constantly, looping to see if a device is ready

the CPU writes one data byte to the data register and sets a bit in control register to show that a byte is available

the CPU receives an interrupt when the device is ready for the next byte

the CPU runs a user written code and does accordingly

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MCQ

What is an interrupt vector?

It is an address that is indexed to an interrupt handler

It is a unique device number that is indexed by an address

It is a unique identity given to an interrupt

None of the mentioned

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MCQ

What is a dedicated device?

opposite to a sharable device

same as a sharable device

can be used concurrently by several processes

none of the mentioned

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MCQ

Which hardware triggers some operation after certain programmed count?

programmable interval timer

interrupt timer

programmable timer

none of the mentioned

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MCQ

A ________ is a collection of electronics that can operate a port, a bus, or a device.

controller

driver

host

bus

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Introduction to Operating System

Types

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Process Synchronization

Memory Management

Storage Management

Input Output Systems

Networking

Distributed Operating System

Protection and Security

Unix

Linux

MS Windows

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Operating Systems Overview

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Finding and Processing Files

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