71. Consider
a main memory with 3 page frames for the following page reference string :
5, 4, 3, 2, 1, 4, 3, 5, 4, 3, 4, 1, 4
Assuming that the execution of process is
initiated after loading page 5 in memory, the number of page faults in FIFO and
second chance replacement respectively are
(A) 8 and 9
(B) 10 and 11
(C) 7 and 9
(D) 9 and 8
Answer: D
72. Which
of the following shell scripts will produce the output “my first script”?
(A) for i in my first script { echo –i $i}
(B) for my first script; do echo –n; done
(C) for i in my first script; do echo –i $i;
done
(D) for n in my first script; do echo –i $i;
done
Answer: C
73. The
portion of Windows 2000 operating system which is not portable is
(A) processor management
(B) user interface
(C) device management
(D) virtual memory management
Answer: D
74. Match
the following for Windows Operating System :
List - I
(a) Hardware abstraction layer
(b) Kernel
(c) Executive
(d) Win32 subsystem
List - II
(i) Starting all processes, emulation of
different operating systems, security functions,
transform character based applications to graphical
representation.
(ii) Export a virtual memory interface, support
for symmetric multiprocessing,
administration, details of mapping memory, configuring
I/O buses, setting up DMA.
(iii) Thread scheduling, interrupt and exception
handling, recovery after power failure.
(iv) Object manager, virtual memory manager, process
manager, plug and-play and
power manager.
Codes :
(a)
(b) (c) (d)
(A) (i) (iii) (ii) (iv)
(B) (iv) (iii) (ii)
(i)
(C) (ii) (iii) (iv)
(i)
(D) (iii) (ii) (i)
(iv)
Answer: C
75. Which
of the following statements is not true for UNIX Operating System?
(A) Major strength of UNIX Operating System
is its open standards which enabled large number of organizations ranging from
academicia to industries to participate in its development.
(B) UNIX kernel uses modules with well
specified interfaces and provides advantages like simplified testing and maintenance
of kernel. It has better extensibility as the kernel is not monolithic.
(C) UNIX is kernel based operating system
with two main components viz. process management subsystem and file management
subsystem.
(D) All devices are represented as files
which simplify the management of I/O devices and files. The directories
structure used is directed acyclic graph.
Answer: B
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