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The return address from a subroutine call is arranged as :
(^) Round Robin (B) FIFO
(C) LIFO . (D) Queue

The Bootstrap Loader resides in :
(^) Hard Disk ^ (B) Any bootable device
¢) RAM (D) ROM

The IRQ commonly assigned to Hard Disk Controller is :
@ 11 (B) 2
(©) 13 2) 14

For DDR2 type RAM with 8 internal blocks and clock speed 533 MHz, the maximum average
periodic refresh rate can be

ಯ 45 - ®) 78
(© 3 ® 175

An operating system written as a set of procedures in which, each can call any other without
any reservation is :

(ക) Virtual System (B) Layered System
(C) Distributed System (D) Monclithic System

A program in execution state is called as :
(^) ஊன (B) Process
(C) Task (D) Thread

A situation in which a multiprogramming system spends more time in page 1/0:
(^) Starvation (B) Dead Lock
(0) Fragmentation (D) . Thrashing

Calculate the average access time for the sector of a disk with 512 bytes per sector and 10 ms
of average seek time. The disk rotates at a speed of 7200 rpm and transfers data at a rate
4 MB/Sec. The controller overhead is 1 ms. Assume that there is no service time :

(ಹಿ) . 19.6 ms (©) 16.2ms
(C) 15.3ms യ 10.3 ೫8

When a process wants to print a file, it writes the file name in a directory called :
(മ Spooler (B) Buffer
(C) Daemon (D) Log

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