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Computer Fundamentals
Operating System
Quiz 6
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Q.1
What is the name of the operating system which was originally designed by scientists and engineers for use by scientists and engineers?
XENIX
UNIX
OS/2
MS DOS
None of the above
Q.2
The most common security failure is
carelessness by users
depending on passwords
too much emphasis on preventing physical access
insufficient technology used to prevent breaches
None of the above
Q.3
Terminal Table
contains all constants in the program
a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure.
consists of a full or partial list of the token's as they appear in the program. Created by Lexical analysis and used for syntax analysis and interpretation
a permanent table which lists all key words and special symbols of the language in symbolic form.
None of the above
Q.4
Block or buffer caches are used
to improve disk performance
to handle interrupts
to increase the capacity of main memory
to speed up main memory read operation
None of the above
Q.5
Special software to create a job queue is called a
Drive
Spooler
Interpreter
Linkage editor
None of the above
Q.6
All the time a computer is switched on, its operating system software has to stay in
main storage
primary storage
floppy disk
disk drive
None of the above
Q.7
The practice of "bundling" refers to
selling computers alone
selling peripheral devices with computer
selling software to run on computers
giving away software with a computer purchase
None of the above
Q.8
Can you name of the major Operating System used in computers?
MS DOS
OS/2
UNIX
All of the above
None of the above
Q.9
Which of the following is not an advantage of multiprogramming?
increased throughput
shorter response time
decreased operating-system overhead
ability to assign priorities to jobs
None of the above
Q.10
Virtual Memory
is a method of memory allocation by which the program is subdivided into equal portions, or pages and core is subdivided into equal portions or blocks.
consists of those addresses that may be generated by a processor during execution of a computation.
is a method of allocating processor time.
allows multiple programs to reside in separate areas of core at the time.
None of the above
Q.11
In which addressing mode, the address of the location of the operand is given explicitly as a part of the instruction.
absolute mode
immediate mode
index mode
modulus mode
None of the above
Q.12
Under virtual storage,
a single program is processed by two or more CPUs
two or more programs are stored concurrently in primary storage
only the active pages of a program are stored in primary storage
interprogram interference may occur
None of the above
Q.13
A base register table
allows the programmer to write base registers and displacements explicitly in the source program.
is used to remember which of the general-purpose registers are currently available as base registers, and what base addresses they contain.
allows multiple programs to reside in separate areas of core at the same time.
is a term that refers to the control programs of an operating system.
None of the above
Q.14
File record length
should always be fixed
Should always be variable
depends upon the size of the file
should be chosen to match the data characteristics
None of the above
Q.15
A relationship between processes such that each has some part (critical section) which must not be executed while the critical section of another is being executed, is known as
semaphore
mutual exclusion
multiprogramming
multitasking
None of the above
Q.16
Poor response times are caused by
Processor busy
High I/O rate
High paging rates
Any of the above
None of the above
Q.17
Link encryption
is more secure than end-to-end encryption
is less secure than end-to-end encryption
can not be used in a public network
is used only to debug
None of the above
Q.18
A form of code that uses more than one process and processor, possibly of different type, and that may on occasions have more than one process or processor active at the same time, is known as
multiprogramming
multithreading
broadcasting
time sharing
None of the above
Q.19
The table created by lexical analysis to describe all literals used in the source program is
Terminal table
Literal table
Identifier table
Reductions
None of the above
Q.20
The term 'polling' in a computer means a process by which a computer system
detects/corrects errors
multiplexes the inputs and updates the memory accordingly
decides correct alternative by analysing several ones
inquires to see if a terminal has any transaction to send
None of the above
Q.21
In which addressing mode the operand is given explicitly in the instruction?
absolute mode
immediate mode
indirect mode
index mode
None of the above
Q.22
The technique, for sharing the time of a computer among several jobs. Which switches jobs so rapidly such that each job appears to have the computer to itself:
time sharing
time out
time domain
FIFO
None of the above
Q.23
Capacity planning
requires detailed system performance information
is independent of the operating system
does not depend on the monitoring tools available
is not needed in small installations
None of the above
Q.24
Which of the following is characteristic of an operating system?
resource management
error recovery
memory management
All the above
None of the above
Q.25
In MS-DOS, relocatable object files and load modules have extensions
.OBJ and .COM or .EXE, respectively
.COM and .OBJ, respectively
.EXE and .OBJ, respectively
.DAS and .EXE, respectively
None of the above
Q.26
The state transition initiated by the user process itself in an operating system is
block
dispatch
wake up
timer run out
None of the above
Q.27
Which of the following program is not a utility?
Debugger
Editor
Spooler
All of the above
None of the above
Q.28
The function(s) of file system is (are):
to provide complete file naming freedom to the users and to permit controlled sharing of files
to provide for long and short term storage of files with appropriate economic tradeoffs.
to provide security against loss of information due to system failure
all of the above
None of the above
Q.29
The main function of the dispatcher (the portion of the process scheduler) is
swapping a process to the disk
assigning ready process to the CPU
suspending some of the processes when the CPU load is high
bring processes from the disk to the main memory
None of the above
Q.30
The errors that can be pointed out by the compiler are
Syntax errors
Semantic errors
Logical errors
Internal errors
None of the above
Q.31
When a computer is first turned on or restarted, a special type of absolute loader is executed, called a
"Compile and Go" loader
Boot loader
Bootstrap loader
Relating loader
None of the above
Q.32
Which, of the following checks, cannot be carried out on the input data to a system?
consistency check
Syntax check
Range check
All of the above
None of the above
Q.33
A program that converts a high-level language program to a set of instructions that can run on a computer is called a
Compiler
Debugger
Editor
All of the above
None of the above
Q.34
What is the initial value of the semaphore to allow only one of the many processes to enter their critical section?
8
1
16
0
None of the above
Q.35
Four necessary conditions for deadlock to exist are: mutual exclusion, no-preemption, circular wait and
hold and wait
deadlock avoidance
race around condition
buffer overflow
None of the above
Q.36
If you do not know which version of MS-DOS you are working with, which command will you use after having booted your operating system?
FORMAT command
DIR command
VER command
DISK command
None of the above
Q.37
A partitioned data set is most used for
a program or source library
storing program data
storing backup information
storing ISAM files
None of the above
Q.38
A relocate program form is one which
cannot be made to execute in any area of storage other than the one designated for it at the time of its coding or translation.
consists of a program and relevant information for its relocation.
can itself performs the relocation of its address-sensitive portions.
all of the above
None of the above
Q.39
If you want to execute more than one program at a time, the systems software you are using must be capable of:
word processing
virtual memory
compiling
multitasking
None of the above
Q.40
Page-map table is
A data file
A directory
Used for address translation
All of the above
None of the above
Q.41
In analyzing the compilation of PL/I program, the description "resolving symbolic address (labels) and generating machine language" is associated with
Assembly and output
Code generation
Storage assignment
Syntax analysis
None of the above
Q.42
Round-robin scheduling
allows interactive tasks quicker access to the processor
is quite complex to implement
gives each task the same chance at the processor
allows processor-bound tasks more time in the processor
None of the above
Q.43
What is the name of the system which deals with the running of the actual computer and not with the programming problems?
Operating system
Systems program
Object program
Source program
None of the above
Q.44
Which of the following is true about pseudocode
A machine language
An assembly language
A high-level language
All of the above
None of the above
Q.45
The principles of structured programming forbid the use of
WHILE-DO
GOTO
IF-THEN-ELSE
DO-WHILE
None of the above
Q.46
Which of the following capabilities is required for a system program to execute more than one program at a time?
word processing
compiling
virtual memory
multitasking
None of the above
Q.47
For Windows 10, Microsoft released _________ in place of MS Paint.
Paint 10
New MS Paint
Paint 3D
Universal Paint
Q.48
Which of the key is used to close the active window?
Ctrl+F4
Alt+F4
Alt+F6
Ctrl+F5
Q.49
Assembler language
is usually the primary user interface
requires fixed-format commands
is a mnemonic form of machine language
is quite different from the SCL interpreter
None of the above
Q.50
The primary job of the operating system of a computer is to
command resources
manage resources
provide utilities
be user friendly
None of the above
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