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Computer Fundamentals
Operating System
Quiz 5
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Q.1
Which of the following software types is used to simplify using systems software?
spreadsheet
operating environment
timesharing
multitasking
None of the above
Q.2
The function(s) of the Storage Assignment is (are)
to assign storage to all variables referenced in the source program.
to assign storage to all temporary locations that are necessary for intermediate results.
to assign storage to literals, and to ensure that the storage is allocate and appropriate locations are initialized.
all of the above
None of the above
Q.3
A Processor
is a device that performs a sequence of operations specified by instructions in memory.
is the device where information is stored
is a sequence of instructions
is typically characterized by interactive processing and time of the CPU
None of the above
Q.4
With MS-DOS which command will divide the surface of the blank floppy disk into sectors and assign a unique address to each one?
FORMAT command
FAT command
VER command
CHKDSK command
None of the above
Q.5
Which table is a permanent database that has an entry for each terminal symbol.
Terminal table
Literal table
Identifier table
Reductions
None of the above
Q.6
The function(s) of the Syntax phase is(are)
to recognize the major constructs of the language and to call the appropriate action routines that will generate the intermediate form or matrix for these constructs.
to build a literal table and an identifier table
to build a uniform symbol table
to parse the source program into the basic elements or tokens of the language.
None of the above
Q.7
Swapping
works best with many small partitions
allows many programs to use memory simultaneously
allows each program in turn to use the memory
does not work with overlaying
None of the above
Q.8
A disk scheduling algorithm in an operating system causes the disk arm to move back and forth across the disk surface in order to service all requests in its path. This is a
First come first served
Shortest Seek Time First (SSTE)
Scan
FIFO
None of the above
Q.9
A translator is best described as
an application software
a system software
a hardware component
all of the above
None of the above
Q.10
Software that measures, monitors, analyzes, and controls real-world events is called:
system software
real-time software
scientific software
business software
None of the above
Q.11
The details of all external symbols and relocation formation (relocation list or map) is provided to linker by
Macro processor
Translator
Loader
Editor
None of the above
Q.12
The macro processor must perform
recognize macro definitions and macro calls
save the macro definitions
expand macros calls and substitute arguments
all of the above
None of the above
Q.13
A development strategy whereby the executive control modules of a system are coded and tested first, is known as
Bottom-up development
Top-down development
Left-Right development
All of the above
None of the above
Q.14
Which of the following is helpful in evaluating applications software what will best suit your needs?
recommendations by other users
computer magazines
objective software reviews
all of the above
None of the above
Q.15
The CPU, after receiving an interrupt from an I/O device
halts for a predetermined time
hands over control of address bus and data bus to the interrupting device
branches off to the interrupt service routine immediately
branches off to the interrupt service routine after completion of the current instruction
None of the above
Q.16
Seeks analysis
is used for analyzing paging problems
is used for analyzing device busy problems
is used for analyzing control-unit busy problems
is only shown on real-time displays
None of the above
Q.17
Which is a permanent database in the general model of the compiler?
Literal Table
Identifier Table
Terminal Table
Source code
None of the above
Q.18
Trojan-Horse programs
are legitimate programs that allow unauthorized access
do not usually work
are hidden programs that do not show up on the system
usually are immediately discovered
None of the above
Q.19
When did IBM release the first version of disk operating system DOS version 1.0?
1981
1982
1983
1984
None of the above
Q.20
What is the name of the technique in which the operating system of a computer executes several programs concurrently by switching back and forth between them?
Partitioning
Multitasking
Windowing
Paging
None of the above
Q.21
Operating system
links a program with the subroutines it references
provides a layered, user-friendly interface
enables the programmer to draw a flowchart
all of the above
None of the above
Q.22
Which of the following is false about disk when compared to main memory?
non-volatile
longer storage capacity
lower price per bit
faster
None of the above
Q.23
Producer consumer problem can be solved using
semaphores
event counters
monitors
all of the above
None of the above
Q.24
The process of transferring data intended for a peripheral device into a disk (or intermediate store) so that it can be transferred to peripheral at a more convenient time or in bulk, is known as
multiprogramming
spooling
caching
virtual programming
None of the above
Q.25
Block caches or buffer caches are used
to improve disk performance
to handle interrupts
to increase the capacity of the main memory
to speed up main memory read operation
None of the above
Q.26
Most of the microcomputer's operating systems like Apple DOS, MS DOS and PC DOS etc. are called disk operating systems because
they are memory resident
they are initially stored on disk
they are available on magnetic tapes
they are partly in primary memory and partly on disk
None of the above
Q.27
Which of the following statements is false?
a small page size causes large page tables
internal fragmentation is increased with small pages
a large page size causes instructions and data that will not be referenced brought into primary storage
I/O transfers are more efficient with large pages
None of the above
Q.28
The action of parsing the source program into the proper syntactic classes is known as
syntax analysis
lexical analysis
interpretation analysis
general syntax analysis
None of the above
Q.29
Which, of the following is not true about the description of a decision table?
A decision table is easy to modify
A decision table is directly understood by the computer
A decision table is easy to understand
All of the above
None of the above
Q.30
What problem is solved by Dijkstra's banker's algorithm?
mutual exclusion
deadlock recovery
deadlock avoidance
cache coherence
None of the above
Q.31
The dispatcher
actually schedules the tasks into the processor
puts tasks in I/O wait
is always small and simple
never changes task priorities
None of the above
Q.32
System programs such as Compilers are designed so that they are
reenterable
non reusable
serially usable
recursive
None of the above
Q.33
IBM released its first PC in 1981. Can you name the operating system which was most popular at that time?
MS-DOS
PC-DOS
OS/360
CP/M
None of the above
Q.34
If the number of bits in a virtual address of a program is 16 and the page size is 0.5 K bytes, the number of pages in the virtual address space is
16
32
64
128
None of the above
Q.35
Tree structure displays the
File only
Directory only
File and directory name
None of above
Q.36
An incremental backup
should be done each month
uses more tapes
saves all files
saves only files that have recently changed
None of the above
Q.37
The powerful text editor called PC-Write can be used by anybody by paying a small fee. Such programs are called
Software
Shareware
Firmware
Mindware
None of the above
Q.38
The disadvantages of "Compile and Go" loading scheme is (are):
a portion of memory is wasted because the core occupied by the assembler is unavailable to the object program.
it is necessary to retranslate the user's program deck every time it is run.
it is very difficult to handle multiple segments, especially if the source programs are in different languages, and to produce orderly modular programs.
all of the above
None of the above
Q.39
The operating system of a computer serves as a software interface between the user and
hardware
peripheral
memory
screen
None of the above
Q.40
Which of the following statement is true.
The LRU algorithm pages out pages that have been used recently
Thrashing is a natural consequence of virtual memory systems.
Seek analysis is used for analysing control-unit busy problems.
All of the above
None of the above
Q.41
Which of the following is a phase of a compilation process
Lexical analysis
Code generation
Both of the above
Static analysis
None of the above
Q.42
Which are the most important features of Microsoft Windows program?
Windows
Pull-down menus
Icons
All of the above
None of the above
Q.43
Which of the following system program forgoes the production of object code to generate absolute machine code and load it into the physical main storage location from which it will be executed immediately upon completion of the assembly?
two pass assembler
load-and-go assembler
macroprocessor
compiler
None of the above
Q.44
Virtual memory is
simple to implement
used in all major commercial operating systems
less efficient in utilization of memory
useful when fast I/O devices are not available
None of the above
Q.45
Object code
is ready to execute
is the output of compilers, but not assemblers
must be "loaded" before execution
must be rewritten before execution
None of the above
Q.46
In a magnetic disk, data is recorded in a set of concentric tracks which are subdivided into
periods
sectors
zones
groups
None of the above
Q.47
The total time to prepare a disk drive mechanism for a block of data to be read from it is
latency
latency plus transmission time
latency plus seek time
latency plus seek time plus transmission time
None of the above
Q.48
Part of a program where the shared memory is accessed and which should be executed invisibly is called
semaphores
directory
critical section
mutual exclusion
None of the above
Q.49
Indicate which, of the following, is not true about Nassi-Shneiderman charts
These charts are type of graphical design tool
These charts cannot represent CASE constructs
These charts can represent three fundamental control structures
All of the above
None of the above
Q.50
What is the name of the operating system that reads and reacts in terms of actual time.
Batch system
Quick response system
Real time system
Time sharing system
None of the above
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