Coding Theory

MMTE-005 important topics

The eGyanKosh units IGNOU has examined most, from 7 past papers. Matched automatically from question wording.

1. Block 2, Unit 7: Weight Distribution of Codes ↗Asked almost every time: in 5 of 7 papers
2. Block 2, Unit 5: Hamming Codes ↗Asked often: in 3 of 7 papers
3. Block 1, Unit 3: Decoding Linear Codes ↗Asked sometimes: in 1 of 7 papers

MMTE-005 assignment

The latest MMTE-005 assignment is valid for the January 2026 & July 2026 sessions. It carries 100 marks and 30% of your final grade. Due 31 Mar 2026 for the January 2026 session or 30 Sept 2026 for the July 2026 session.

MMTE-005 previous-year question papers

Official term-end exam papers for Coding Theory, published by IGNOU. Each one opens on IGNOU’s website.

• June 2024MMTE-005 term-end exam, official PDF↗
• December 2023MMTE-005 term-end exam, official PDF↗
• June 2023MMTE-005 term-end exam, official PDF↗
• December 2022MMTE-005 term-end exam, official PDF↗
• June 2022MMTE-005 term-end exam, official PDF↗
• June 2021MMTE-005 term-end exam, official PDF↗
• December 2020MMTE-005 term-end exam, official PDF↗

Important Coding Theory questions

17 questions have come in more than one MMTE-005 exam. They are listed first. The text is taken from IGNOU’s official papers, so open the paper for figures and exact wording.

1. December 2022 · Q2(b) · 3 marksAsked 5 times

   Define a self-dual code and give an example.

2. June 2024 · Q6(e) · 5 marksAsked 4 times

   Every perfect code is a self dual code.

3. June 2023 · Q6(b) · 2 marksAsked 4 times

   Every cyclic code is self dual.

4. December 2023 · Q6(e) · 5 marksAsked 4 times

   Every perfect code is self dual.

5. December 2020 · Q2(c) · 5 marksAsked 4 times

   Write the generator matrix of the binary (7, 4) cyclic code with generator polynomial 3 1.xx ++ Also find the parity check matrix of this code.

6. June 2024 · Q3(b) · 5 marksAsked 3 times

   Find the convolutional code for the message 11011. The convolutional encoder is given in figure 1.

7. June 2024 · Q4(b) · 3 marksAsked 2 times

   If a polynomial generator matrix of an [n, k ] convolutional code C is basic and reduced, then prove that it is canonical.

8. June 2024 · Q6(c)Asked 2 times

   A quadratic residue code of length 7 exists over 3F.

9. June 2024 · Q6(d)Asked 2 times

   The parity check code of a turbo code can be the identity matrix.

10. June 2023 · Q2(a) · 2 marksAsked 2 times

    What is a repetition code? If, in a repetition code in which a message of length two is sent thrice, the codeword 11 10 10 is received, decode the message assuming there is at most one error.

11. June 2023 · Q5(c) · 3 marksAsked 2 times

    If a polynomial generator matrix of an [n, k ] convolutional code C is basic and reduced, then prove that it is canonical.

12. December 2023 · Q1(c) · 2 marksAsked 2 times

    What is a repetition code? If, in a repetition code in which the message of length is sent thrice, the codeword 110 111 110 is received, decode the message assuming there is at most one error.

Coding Theory study material

IGNOU publishes the full MMTE-005 self-learning material free on eGyanKosh: every block and unit on basics of coding theory and some well- known codes.