If two or more records are stored for the same customer without the mistake being realized, this is referred to as ____.

_____ memory or storage cards are found in mobile devices and laptops and also in desktop computers

Fill in the blank(s) with correct word

Which of the following helps to protect a wireless network from piggybacking?

A) Deactivating packet switching B) Limiting the wireless signal range C) Purchasing antivirus software D) Placing the router out of sight