UGC NET Computer Science Software Engineering Previous Year Questions (PYQs) – Page 6 of 11
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Solution
An activity chart represents a project schedule as a directed graph.
In project scheduling, the critical path is the longest path in the project network.
It contains dependent tasks because one task depends on the completion of another task.
The critical path defines the total project duration.
So, the correct sequence is:
$Activity,\ Longest,\ Dependent,\ Duration$
Solution
Productivity relation:
$Productivity = \dfrac{Effort}{Size}$
Given:
$Effort = 2000$ person-month
$Productivity = 5$ person-month per KLOC
So
$Size = \dfrac{Effort}{Productivity}$
$Size = \dfrac{2000}{5}$
$Size = 400$ KLOC
Match List - I with List - II.
| List - I (software design principles) | List - II (Definitions) |
| (A) Cohesion | (I) Degree to which one module relies on another module |
| (B) Coupling | (II) Dividing a software system into distinct modules |
| (C) Abstraction | (III) Degree to which elements of a module belong together |
| (D) Modularity | (IV) Simplifying complex reality by modeling classes appropriate to the problem |
Choose the correct answer from the options given below :
Solution
efinitions:
Cohesion → elements of a module belong together → (III)
Coupling → dependency between modules → (I)
Abstraction → simplify complexity → (IV)
Modularity → divide system into modules → (II)
Thus:
(A)-(III), (B)-(I), (C)-(IV), (D)-(II)
Statement I: Working from the general to the specific.
Statement II: Postpone the minor decisions.
Statement III: A systematic approach.
Statement IV: Intermediate coding of the problem
Which of the following is true?
Solution
Statement I:
Top down approach starts from the general problem and then moves toward specific details.
So, Statement I is true.
Statement II:
In top down approach, major design decisions are taken first.
Minor details are postponed until lower-level modules are designed.
So, Statement II is true.
Statement III:
Top down approach follows a systematic method of stepwise refinement.
The problem is refined step by step into smaller and simpler modules.
So, Statement III is true.
Statement IV:
Top down approach does not mean intermediate coding of the problem.
It focuses on design and decomposition before detailed coding.
So, Statement IV is false.
Therefore:
Statement I is true.
Statement II is true.
Statement III is true.
Statement IV is false.
Solution
Which of the following are Agile Process Models ?
(A) Extreme Programming (XP)
(B) Waterfall
(C) Scrum
(D) Spiral
(E) Incremental
Choose the correct answer from the options given below :
Solution
Agile models include iterative and flexible development approaches.
Check each:
(A) Extreme Programming (XP) → Agile methodology ✔
(B) Waterfall → Traditional sequential model ✘
(C) Scrum → Agile framework ✔
(D) Spiral → Risk-driven traditional model ✘
(E) Incremental → Development strategy but not strictly Agile model here
Thus Agile models are:
Extreme Programming and Scrum
Solution
A good SRS should have characteristics like:
Completeness
Consistency
Clarity
Correctness
Verifiability
Modifiability
Traceability
Now check the options:
Completeness is a characteristic of good SRS because all requirements should be included.
Consistency is a characteristic of good SRS because requirements should not conflict with each other.
Clarity is a characteristic of good SRS because requirements should be clearly written and easily understood.
Reliability is mainly a software quality characteristic, not a direct characteristic of SRS.
Therefore, a good SRS does NOT have Reliability as its main SRS characteristic.
Given below are two statements:
Statement I: Software testing must be recognized as a significant effort, and its planning must begin at the earliest possible time.
Statement II: The cost of software testing is an important contribution in determining overall software development costs.
Solution
Statement I is true because software testing planning should start early in the software development life cycle.
Statement II is also true because testing cost is a major part of total software development cost.
So, correct option is:
$\boxed{(a)\ \text{Both Statement I and Statement II are true}}$
Which of the following need not be assessed during unit testing?
A. Algorithmic performance.
B. Number of lines of code.
C. Error handling.
D. Execution paths.
Choose the correct answer from the options given below:
Solution
During unit testing, error handling is important to test.
But algorithmic performance, number of lines of code and execution paths are not the main assessment points in this context.
So, correct option is:
$\boxed{(b)\ \text{A, B, D only}}$
Arrange the following steps of Feature Driven Development (FDD) process in the correct sequence :
(A) Develop an overall model
(B) Build by feature
(C) Plan by feature
(D) Design by feature
(E) Build a feature list
Choose the correct answer from the options given below :
Solution
Standard FDD lifecycle steps:
-
Develop overall model
-
Build feature list
-
Plan by feature
-
Design by feature
-
Build by feature
Thus order:
(A) → (E) → (C) → (D) → (B)
UGC NET Computer Science
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UGC NET Computer Science
Online Test Series, Information About Examination,
Syllabus, Notification
and More.
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