CPN CPE Computer Engineering Practice Questions - CPN CPE - Computer Engineering (CEN) Track (Nigeria) Exam - CPN CPE Computer Engineering Practice Questions - CPN CPE - Computer Engineering (CEN) Track (Nigeria) Exam

Question 1

Which of the following represents the minimized Boolean expression for the function F(A, B, C, D) = Σm(0, 2, 5, 7, 8, 10, 13, 15) using a Karnaugh map?

B'D' + BD A'B' + CD AD' + B'C AC' + BD'

Correct Answer:

B'D' + BD

Question 2

What is the primary difference between a Mealy machine and a Moore machine in sequential logic design?

A Mealy machine's outputs depend on both the current state and the current inputs, whereas a Moore machine's outputs depend only on the current state. A Moore machine's outputs depend on both the current state and the current inputs, whereas a Mealy machine's outputs depend only on the current state. A Mealy machine is always asynchronous, whereas a Moore machine is synchronous. A Moore machine requires fewer states than a Mealy machine to implement the same sequence detector.

Correct Answer:

A Mealy machine's outputs depend on both the current state and the current inputs, whereas a Moore machine's outputs depend only on the current state.

Question 3

In VLSI design, what physical phenomenon is primarily responsible for the 'latch-up' condition in CMOS circuits?

The activation of parasitic bipolar junction transistors (BJTs) forming a silicon-controlled rectifier (SCR) path. The breakdown of the gate oxide due to excessive electrostatic discharge (ESD). The electromigration of metal atoms in the interconnect layers under high current densities. The injection of hot carriers into the oxide, causing a permanent shift in threshold voltage.

Correct Answer:

The activation of parasitic bipolar junction transistors (BJTs) forming a silicon-controlled rectifier (SCR) path.

Question 4

What is the critical path in a synchronous digital circuit, and how does it restrict the circuit's operation?

It is the longest propagation delay path between any two registers, and it determines the maximum clock frequency of the circuit. It is the path with the shortest propagation delay, and it determines the hold time requirements. It is the power distribution line that carries the highest current, limiting thermal dissipation. It is the clock distribution tree path, limiting the maximum skew across the chip.

Correct Answer:

It is the longest propagation delay path between any two registers, and it determines the maximum clock frequency of the circuit.

Question 5

Which type of hazard can occur in combinational logic circuits due to unequal propagation delays along different paths, and how is it resolved?

Static hazards, which are resolved by adding redundant prime implicants to the logic expression. Dynamic hazards, which are resolved by increasing the system clock frequency. Structural hazards, which are resolved by duplicating ALU resources. Data hazards, which are resolved by adding pipeline registers.

Correct Answer:

Static hazards, which are resolved by adding redundant prime implicants to the logic expression.

Question 1

Exam overview

About this Exam

Prepare with the CPN CPE Computer Engineering Practice Questions - CPN CPE - Computer Engineering (CEN) Track (Nigeria) Exam practice quiz. This question bank includes 100 questions covering logic, function, primary, digital, and architecture. Use it to review important concepts, identify knowledge gaps, and build confidence for the related exam, course, or assessment.

More details

Additional Information

CPN CPE Computer Engineering Practice Questions - CPN CPE - Computer Engineering (CEN) Track (Nigeria) Exam

This practice set contains 100 questions from the matching question bank and focuses on logic, function, primary, digital, and architecture. Work through each question carefully, review the provided solutions, and revisit topics that need more study before your next attempt.

This is an independent study resource intended for practice and review; it is not an official examination or an endorsement by any organization named in the title.

Quiz information

Frequently Asked Questions

The complete question count is available after full access is unlocked.

No fixed duration is currently configured for this quiz.

Question explanations are included where they are available in the quiz content, helping you review the reasoning after answering.

Yes. You can retake the practice test again as you continue studying during your available access period.

After your access is confirmed, you can continue into the complete practice exam from this quiz flow.

Unless explicitly stated otherwise, this page provides independent practice material for study and exam preparation and is not the official examination itself.

Keep studying

Correct Answer:

Correct Answer:

Correct Answer:

Correct Answer:

Correct Answer:

About this Exam

Additional Information

CPN CPE Computer Engineering Practice Questions - CPN CPE - Computer Engineering (CEN) Track (Nigeria) Exam

Frequently Asked Questions

Related Questions

2nd Class Power Engineering (2A1) Practice Exam

2nd Class Power Engineering 2A3 Practice Exam

2nd Class Power Engineering (2B1) Practice Exam

2nd Class Power Engineering 2B2 Practice Exam

2nd Class Power Engineering 2B3 Practice Exam

2nd Class Power Engineering 2A2 Practice Exam Guide