BE/B Eng Bachelor of Engineering Computer Engineering 2

Question 1

In networking, what does the OSI model's Transport Layer (Layer 4) primarily provide?

Accepted Answer

End-to-end communication, flow control, and error recovery between hosts

Answer

Layer 4 (Transport) provides reliable end-to-end data transfer with services like segmentation, flow control, and error recovery; TCP and UDP operate at this layer.

Question 2

What is the purpose of an interrupt in computer systems?

Accepted Answer

To signal the CPU that an event requiring immediate attention has occurred

Answer

An interrupt is a signal that pauses the CPU's current task, saves its state, and transfers control to an Interrupt Service Routine (ISR) to handle the event, then resumes the original task.

Question 3

In software engineering, what does an API (Application Programming Interface) provide?

Accepted Answer

A defined set of protocols and tools for building software and allowing different applications to communicate

Answer

An API defines a contract—methods, data formats, and protocols—that enables different software applications to interact and share functionality without exposing internal implementation.

Question 4

What is the difference between RISC and CISC processor architectures?

Accepted Answer

RISC uses simple, fixed-length instructions executed in one cycle; CISC uses complex, variable-length instructions

Answer

RISC (Reduced Instruction Set Computer) processors use a small set of simple, fixed-format instructions for fast execution, while CISC (Complex Instruction Set Computer) processors use many complex, variable-length instructions.

Question 5

In database systems, what does ACID stand for?

Accepted Answer

Atomicity, Consistency, Isolation, Durability

Answer

ACID properties guarantee reliable database transactions: Atomicity (all-or-nothing), Consistency (valid state), Isolation (independent transactions), Durability (committed changes persist).

BE/B Eng Bachelor of Engineering Practice Test

BE/B Eng Bachelor of Engineering Practice Test

BE/B Eng Bachelor of Engineering Computer Engineering 2