Multiple choice

Error detection at data link level is achieved by

  1. bit snuffing

  2. cycle redundancy codes

  3. hemming codes

  4. equalization

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cyclic Redundancy Check (CRC) is the standard error detection method at the data link layer. Option B says 'cycle redundancy codes' which is a typo for 'cyclic', but refers to CRC.