Which of the following is NOT identified in the textbook as an area that may be required by law to do a background check?

A customer signed up for the mobile pay service to use with their first generation smartphone but it does not work at any place that supports the mobile pay service. Which of the following is missing from the customer's smartphone?

A. RFID B. IMSI C. NFC chip D. Bluetooth

Which of the following statements is false?

a. In Java SE 8, an interface may declare default methods—that is, public methods with concrete implementations that specify how an operation should be performed. b. When a class implements an interface, the class receives the interface’s default concrete implementations if it does not override them. c. When you enhance an existing interface with default methods—any class that implemented the original interface will break. d. With default methods, you can declare common method implementations in interfaces (rather than abstract classes), which gives you more flexibility in designing your classes.