BIOMETRICS UNIT-IV

Which of the following is used for Iris image acquisition?

• Infrared imaging

• Ultra Violet imaging

• Gamma imaging

• Optic imaging

The wavelength used for infrared imaging is:

• 900nm-1200nm

• 1000nm-1100nm

• 700nm-800nm

• 700nm-900nm

Which of the following is not a type of Iris Biometric system

• Kiosk Based

• Desktop based

• Physical Access based

• Satellite based

Approximate distance the user has tomaintain with the Iris acquision device in KIOSK based systems is:

• 2 to 3 feet

• 18 inches

• 3 inches

• 18 feet

The approximate distance the user must maintain to provide iris data in Physical access systems is:

• 3 inches

• 2 to 3 feet

• 18 inches

• 18 feet

Which of the following is not one of the difficulty in Iris image acquisition is:

• Locating iris inner boarder

• Locating Iris outer boarder

• pupil dialation

• eyelid oclusion

A primary visible characteristic of the iris is known as

• Trabecular Meshwork

• Neural Network

• Traingular Network

• Tropical Meshwork

The template generated for Iris data is stored in the form

• Binary

• decimal

• Hexa Decimal

• Octal

Which of the following are not true ?

• Speech recognition translate anyone’s voice

• Voice recognition understands a specific user’s voice. 

• Google Assistant is Voice Scan application

• Google’s speech-to-text engine

  is an exmple of Speach recognition technology

Voice scan technology is text dependant and it is called as:

• Password

• Passphrase

• Voicephrase

• voice word