Retailers sometimes use beacons, which are devices that send signals to nearby smartphones.

Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Some users choose cloud service because of its scalability, which means that it
doesn't require the user to use floor space for servers and storage devices
O provides the flexibility to increase or decrease computing requirements as needed
O relies on expensive servers that the user doesn't have to invest in
O has faster upstream and downstream times than an external hard drive
Transcribed Image Text:Some users choose cloud service because of its scalability, which means that it doesn't require the user to use floor space for servers and storage devices O provides the flexibility to increase or decrease computing requirements as needed O relies on expensive servers that the user doesn't have to invest in O has faster upstream and downstream times than an external hard drive
Retailers sometimes use beacons, which are devices that send
O low-energy Bluetooth
O high-frequency RFID
O encrypted infrared
O push/pull notification
signals to nearby smartphones.
Transcribed Image Text:Retailers sometimes use beacons, which are devices that send O low-energy Bluetooth O high-frequency RFID O encrypted infrared O push/pull notification signals to nearby smartphones.
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