1 2 3
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> (C) For <var> (D) Fork <var>
Join <var> Join
<label> 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
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
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