# Unit 3 · Errors, block coding and CRC · optional practice

Subject: Computer Networks

Exam: TEE

Reader: https://deep-learning-study-room.vercel.app/cn/#tee/practice/error-control

Canonical: https://deep-learning-study-room.vercel.app/read/cn/tee/practice-chapter/error-control/

Optional extension · no matching calculation in the two supplied papers

1. [How a Hamming code locates a single error](https://deep-learning-study-room.vercel.app/read/cn/tee/practice/error-control--hamming-code/)
2. [Single-error correction · example 1](https://deep-learning-study-room.vercel.app/read/cn/tee/practice/error-control--hamming-code-1/)
3. [Single-error correction · example 2](https://deep-learning-study-room.vercel.app/read/cn/tee/practice/error-control--hamming-code-2/)
4. [Single-error correction · example 3](https://deep-learning-study-room.vercel.app/read/cn/tee/practice/error-control--hamming-code-3/)