Multiple choice technology testing

Expansion of DNIS is _____?

  1. Dialing Number Identification Service

  2. Dialed Number Identification Service

  3. Dialing Number Identification System

  4. Dialed Number Identification System
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

DNIS stands for 'Dialed Number Identification Service' - it's a telephony service that identifies the number being called. The key distinction is 'Dialed' (past tense of dial) vs 'Dialing' (present participle), and 'Service' vs 'System' - the correct expansion is Dialed Number Identification Service.

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