Data collection, Warehousing, Mining 1

What are the two main components of an RFID system?

• RFID tags and RFID readers

• RFID antennas and batteries

• RFID chips and barcode scanners

• RFID software and hardware

What is the primary function of an RFID tag?

• To store data only

• To transmit data to a reader

• To create an electromagnetic field

• To connect to the internet

How do RFID readers power passive RFID tags?

• By creating an electromagnetic field

• By connecting to the internet

• By using solar energy

• By using batteries in the tags

How does RFID technology enhance access control in places like Gautrain stations?

• By using physical keys

• By employing facial recognition

• By utilizing RFID cards for entry

• By requiring manual checks

What does the presence of a battery in an RFID tag indicate?

• It is a passive tag

• It is a disposable tag

• It is an active tag

• It is a faulty tag

What advantage do active RFID tags have over passive ones?

• They are cheaper to produce

• They can communicate over longer distances

• They do not require a reader

• They are smaller in size

Which of the following statements about RFID technology is true?

• RFID can only read one tag at a time.

• RFID requires a direct line of sight to read tags.

• RFID technology is outdated and rarely used.

• RFID can read multiple tags simultaneously.

In what way can credit and loyalty cards gather consumer data?

• By tracking physical locations

• By using anonymous transactions

• By linking purchases to personal identity

• By requiring biometric data

What is a potential risk associated with data collected from forms?

• It can be stored indefinitely

• It may be sold to third parties

• It is always kept confidential

• It cannot be accessed by anyone else

How can online activities reveal personal information?

• By tracking physical movements

• By analyzing purchase history only

• Through the content of emails and social media posts

• By monitoring phone calls