1-Translator
for low level programming language were termed as-Assembler
2-Analysis
which determines the meaning of a statement once its grammatical structure
becomes known
is termed as-Semantic analysis
3-Load address
for the first word of the program is called-load address origin
4-Symbolic
names can be associated with-data or instruction
5-The
translator which perform macro expansion is called a-Macro pre-processor
6-Shell is the
exclusive feature of-UNIX
7-A program in
execution is called-Process
8-Interval
between the time of submission and completion of the job is called-Turnaround
time
9-A scheduler
which selects processes from secondary storage device is called-Medium term
scheduler.
10-The scheduling in which CPU is allocated to
the process with least CPU-burst time
is called-Shortest
job first Scheduling
11-The term
‘page traffic’ describes-the movement of pages in and out of memory.
12-The “turn-around” time of a user job is the-total
time taken to execute the job.
13-Which of the following can be used as a
criterion for classification of data
structures
used in language processing. A-nature of a data structure B-purpose of a data
structure C-lifetime of a data structure D-All
Ans-D
14-Memory
utilization factor shall be computed as follows-memory in use/total memory
connected.
15-Program ‘preemption’ is-forced de allocation
of the CPU from a program which is executing on the CPU.
16-An
assembler is-machine dependant.
17-Which of
the following is not a fundamental process state-(A)
ready (B) terminated
(C)
executing (D) blocked Ans-D
18-Which of
the following is true?
(A)
Block cipher technique is an encryption technique.
(B)
Steam cipher technique is an encryption technique.
(C)
Both (A) and (B).
(D)
Neither of (A) and (B). Ans-C
19-Which of
the following approaches do not require knowledge of the system state?
(A)
deadlock detection. (B) deadlock
prevention.
(C)
deadlock avoidance. (D) none
of the above. Ans-D
20-Program
generation activity aims at-Automatic generation of program
21-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)
22- An
imperative statement- Indicates an action to be performed during execution of
assembled program
23- Which of
the following loader is executed when a system is first turned on or
Restarted- Bootstrap
loader
24- Poor
response time is usually caused by-(A) Process
busy (B) High I/O rates
(C)
High paging rates (D) Any
of the above Ans-D
25- “Throughput”
of a system is- Number of programs
processed by it per unit time
26- The
“blocking factor” of a file is- The number of logical records in one physical
record
27- Which of
these is a component of a process precedence sequence?
(A)
Process name (B) Sequence
operator ‘;’
(C)
Concurrency operator ‘,’ (D) All
of the above Ans-D
28- Which amongst
the following is valid syntax of the Fork and
Join Primitive?
(A)
Fork <label> (B) Fork
<label>
Join <var> Join
<label>
(C)
For <var> (D)
Fork <var>
Join <var> join
<var> Ans-A
29- Nested
Macro calls are expanded using the- FILO rule (First in last out)
30- A parser
which is a variant of top-down parsing without backtracking is- Recursive
Descend.
31- The
expansion of nested macro calls follows- LIFO rule
32- In a
two-pass assembler, the task of the Pass II is to- synthesize the target
program.
33- A linker program- links the program with
other programs needed for its execution.
34- Which scheduling policy is most suitable for
a time-shared operating system-RR(Round-Robin.)
35- A critical
section is a program segment- where shared resources are accessed.
36- An operating system contains 3 user
processes each requiring 2 units of resource
R .The minimum
number of units of R such that no deadlocks will ever arise is-4
37- Locality
of reference implies that the page reference being made by a process- is likely
to be the one of the pages used in the last few page references.
38- Which of these is not a part of Synthesis
phase- Perform LC processing
39-The syntax
of the assembler directive EQU is-<symbol>EQU<address
space>
40-The following features are needed to
implement top down parsing
(A)
Source string marker
(B)
Prediction making mechanism
(C)
Matching and Backtracking mechanism
(D)
All of the above
Ans-D
41-A macro
definition consists of
(A)
A macro prototype statement (B) One
or more model statements
(C)
Macro pre-processor statements (D) All
of the above Ans-D
42-The main
reason to encrypt a file is to-Secure it
for transmission
43-Which of the following is not a key piece of
information, stored in single page table
entry,
assuming pure paging and virtual memory-A reference for the disk block that
stores the page
44-A UNIX
device driver is-Structured into two halves called top half and bottom half
45-The
following is not a layer of IO management module-MCS (Management Control System)
46-Which amongst the following is not a valid
page replacement policy?- RU policy (Recurrently used)
47-An assembly language is a-low level
programming language
48-TII stands
for-Table of incomplete instructions
49-An
analysis, which determines the syntactic structure of the source statement, is
Called-Syntax
analysis
50-Action
implementing instruction’s meaning are a actually carried out by-instruction
execution
51-The field
that contains a segment index or an internal index is called-target datum
52-A program
in execution is called-process
53-Jobs which
are admitted to the system for processing is called-long-term scheduling
54-A set of
techniques that allow to execute a program which is not entirely in memory
is called-virtual
memory
55-SSTF stands
for-Shortest-Seek-time-first scheduling
56-Before
proceeding with its execution, each process must acquire all the resources
it needs is
called-hold and wait
57-Virtual
memory is-used in all major commercial operating systems
58-Relocation
bits used by relocating loader are specified by-Assembler or Translator
59-Resolution
of externally defined symbols is performed by-Linker
60-Relocatable
programs-can be loaded almost anywhere in memory
61-Page
stealing-is taking page frames other working sets
62-The total
time to prepare a disk drive mechanism for a block of data to be read
from is
its-latency plus seek time
63-To avoid
race condition, the maximum number of processes that may be
simultaneously
inside the critical section is-one
64-The memory
allocation scheme subject to “external” fragmentation is-segmentation
65-Page fault
frequency in an operating system is reduced when the-locality of reference is
applicable to the process
66-In which of
the following page replacement policies Balady’s anomaly occurs?- FIFO
67-Virtual
memory can be implemented with-Segmentation & Paging
68-Recognition
of basic syntactic constructs through reductions, this task is performed
By-Syntax
analysis
69-A grammar
for a programming language is a formal description of-Structure
70-Swapping -
is a technique of temporarily removing inactive programs from the
memory of
computer system
71-Ageing-is a
technique of improving the priority of process waiting in Queue
for CPU
allocation
72-Latency
Time-is the time required by a sector to reach below read/write head.
73-Which of
the following is most general phase structured grammar?
Context – Sensitive
74-File record
length-Should be chosen to match the data characteristics.
75-A public
key encryption system-Allows only the correct receiver to decode the data
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