Multiple choice

Which of the following digits are known as sub-address digits ( for use by the user) of Network User Address?

  1. 5—7

  2. 1—4

  3. 8—12

  4. 13—14
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Under the X.121 standard, the final digits of the Network User Address are reserved for the user-defined sub-address, which corresponds to positions 13-14.

Keep practicing — related questions