Back to Other Questions [Of this Course]
👁️ 260 views
University of Barishal Logo

University of Barishal

Department of Computer Science and Engineering

1st Mid Exam

Course Title: Data Communication (CSE-2205)

Semester: 4th | Session: 21-22

Time: 90 minutes | Marks: 25.00

Exam Date: March 12, 2025

View 206 Topic-wise Questions for this Course

(Answer all of the following questions)

1.

1)

What are the five components of a data communications system?

Please SUBSCRIBE to view full question

Topics: N/A Solution is Coming!
1 Marks
2)

What is the bit rate for the signal in following Figure?

Please SUBSCRIBE to view full question

Topics: Bit Rate and Baud Rate , Data Transmission Solution is Coming!
1 Marks
3)

What is the frequency of the signal in following Figure?

Please SUBSCRIBE to view full question

Topics: N/A Solution is Coming!
1 Marks
4)

Why do we need to know about the following terms in data communication course and what are those? Briefly explain.
Baseline Wandering, DC components and self-synchronization.

Please SUBSCRIBE to view full question

Topics: N/A Solution is Coming!
3 Marks
5)

What is line encoding scheme? Draw the digital signal of the following bit stream by the following schemes: unipolar NRZ, polar NRZ-I, polar RZ, polar-biphase (Manchester), bipolar-AMI and multilevel 2B1Q.
11000111010

Please SUBSCRIBE to view full question

Topics: N/A Solution is Coming!
6 Marks
6)

What will be the problem if we don't follow the Nyquist theorem during sampling an analog signal. Explain with a proper illustration.

Please SUBSCRIBE to view full question

Topics: N/A Solution is Coming!
1.50 Marks
7)

Please do the following analog to digital (ADC) conversion process of the following sampled signal using pulse code modulation (PCM) method and find out the digital data.

Please SUBSCRIBE to view full question

Topics: N/A Solution is Coming!
3.50 Marks
8)

What is QAM? Differentiate between 4-QAM and 8-QAM. Draw an 8-QAM signal of the following bit stream-

000 001 111 100 101 010 001 110 011 101

Please SUBSCRIBE to view full question

Topics: N/A Solution is Coming!
5 Marks
9)

Differentiate among AM, FM and PM.

Please SUBSCRIBE to view full question

Topics: N/A Solution is Coming!
3 Marks
View 206 Topic-wise Questions for this Course

Contributors of this Question:

Role Name Date
Uploaded By: Md Abdur Rahaman March 12, 2025, 4:53 p.m.
Converted By (Img/PDF to Text): Baishakhi Bir Nov. 29, 2025, 12:10 a.m.
Reviewed By: Obaydul Hasan Nayeem Nov. 29, 2025, 10:35 a.m.
Back to Other Questions [Of this Course]