B.S.W.E. Bachelor of Software Engineering B.S.W.E. Bachelor of Software Engineering MCQ 2

Question 1

Which software process model is best suited for projects with well-understood, stable requirements?

Accepted Answer

Waterfall model

Answer

The Waterfall model works best when requirements are fully known and unlikely to change because it follows a rigid sequential phase structure.

Question 2

In object-oriented design, which principle states that a class should have only one reason to change?

Accepted Answer

Single Responsibility Principle

Answer

The Single Responsibility Principle (SRP) dictates each class should encapsulate only one responsibility, making it have only one reason to change.

Question 3

Which data structure provides O(1) average-case time complexity for both insertion and lookup?

Accepted Answer

Hash table

Answer

A hash table uses a hash function to map keys to buckets, achieving O(1) average time for insert and lookup operations.

Question 4

In a relational database, the property that ensures a transaction is fully completed or not applied at all is called:

Accepted Answer

Atomicity

Answer

Atomicity is the ACID property guaranteeing that each transaction is treated as a single indivisible unit—either all operations succeed or none are applied.

Question 5

Which network layer of the OSI model is responsible for end-to-end communication and error recovery between hosts?

Accepted Answer

Transport layer

Answer

The Transport layer (Layer 4) handles end-to-end communication, flow control, and error recovery using protocols like TCP.

B.S.W.E. Bachelor of Software Engineering Practice Test

B.S.W.E. Bachelor of Software Engineering Practice Test

B.S.W.E. Bachelor of Software Engineering B.S.W.E. Bachelor of Software Engineering MCQ 2