1.
The hardware mechanism that enables a device to
notify the CPU is called _______.
1)
Interrupt
2) Polling
3) System call
4) None
Answer:
2
2.
Which one of the following is true for a CPU
having a single interrupt request line and a single interrupt grant line?
1) Neither vectored interrupt nor multiple interrupting devices are
possible.
2) Vectored interrupts are not possible but multiple interrupting devices
are possible
3) Vectored interrupts and multiple interrupting devices are both
possible.
4) Vectored interrupt is possible but multiple interrupting devices are
not possible
Answer: 2
3.
Why Solaris, Windows XP, and Linux implement
multiple locking mechanisms.
a) for more
security
b) for application
developer’s needs
c) both a and b
d) none
Answer: b
Explanation: option b is more specific to the
question rather than others
4.
MS-DOS supports multiprogramming fully.
True
/ False?
Answer: False
5.
A __________ is software that manages the time
of a microprocessor to ensure that all time critical events are processed as
efficiently as possible. This software allows the system activities to be
divided into multiple independent elements called tasks.
1) Kernel
2) Shell
3) Processor
4) Device Driver
Ans: 1
6.
An assembler is
(A) programming language dependent.
(B) syntax dependant.
(C) machine dependant.
(D) data dependant.
Ans: (C)
7.
Which amongst the following is not an advantage
of Distributed systems?
(A)
Reliability
(B) Incremental growth
(C) Resource sharing
(D) None of the above
Ans: (A)
8.
An imperative statement
(A) Reserves areas of memory and
associates names with them
(B) Indicates an action to be
performed during execution of assembled program
(C) Indicates an action to be
performed during optimization
(D) None of the above
Ans: (B)
9.
Which of the following loader is executed when a
system is first turned on or restarted
(A) Boot loader
(B) Compile and Go loader
(C) Bootstrap loader
(D) Relating loader
Ans: (C)
10.
Poor response time is usually caused by
(A)
Process busy (B)
(B)
High I/O rates
(C)
(C)
High paging rates
(D)
(D) Any
of the above
Ans: (D)
11.
A linker program
(A) places the program in the memory for the
purpose of execution.
(B) relocates the program to execute from the
specific memory area allocated
to
it.
(C) links the
program with other programs needed for its execution.
(D) interfaces the program with the entities
generating its input data.
Ans:
(C)
12.
The main reason to encrypt a file is to
______________.
(A) Reduce its
size
(B) Secure it for transmission
(C) Prepare it for
backup
(D) Include it in
the start-up sequence
Ans: (B)
13.
A UNIX device driver is
(A) Structured into two halves called top half
and bottom half
(B) Three equal partitions
(C) Unstructured
(D) None of the above
Ans: (A)
14.
Which of the following are language
processors?
(A) Assembler
(B) Compiler
(C) Interpreter
(D) All of the above
Ans: (D)
15.
Most CPUs have the following type interrupt
request.
1) Non-mask able
2) Mask able
3) Both
4) None
Answer: 3
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