Software Engineering Multiple choice Questions and Answers-UGC NET computer science question paper

341.	Which of the following is a dangling reference?
a.	Accessing a variable, that is developed but not initialized
b.	Accessing a storage that in already disposed at the request of the processor
c.	Accessing a storage that is already disposed at the request of the uses
d.	All of these

Answer: (d).All of these

342.	The language accepted by finite automata is
a.	Context – free
b.	Regular
c.	Non – regular
d.	None of these

Answer: (b).Regular

343.	According to Brooks, if n is the number if programs in a project team, then the number of Communication path is
a.	n(n-1)/2
b.	n logn
c.	n
d.	n(n+1)/2

Answer: (a).n(n-1)/2

Answer: (b).loop invariants

345.	Which of the following is case required by top – down design?
a.	flow charting
b.	step – wise refinement
c.	Modularity
d.	All of these

Answer: (d).All of these

346.	Regarding software requirements specifications, the case that is hardest to “fix” is
a.	How user – friendly the system should be?
b.	How fast the software system should run?
c.	What the software system is to do?
d.	How accurate the outputs should be?

Answer: (c).What the software system is to do?

347.	BNF is a meta – language for
a.	Specifying the syntax of a language
b.	Describing how programs works
c.	Shell programming
d.	Real – time programming

Answer: (a).Specifying the syntax of a language

348.	The principle, a function can always be replaced by its value ⁄ irrespective of the contexts, Without changing the meaning is called
a.	Unbinding
b.	Orthogonaeality
c.	Context – free
d.	Referential transparency

Answer: (d).Referential transparency

349.	Use of recursion
a.	Enhances logical clarity and reduces code size
b.	Makes debugging easier
c.	Reduces execution time
d.	Makes software bug free

Answer: (a).Enhances logical clarity and reduces code size