Networks

Question 1

Infrastructure Mode

Answer 1

▪ Most common type of wireless network
▪ Requires centralized management
▪ Uses a wireless access point as a centralized point like a star topology
▪ Supports wireless security controls

Question 2

Ad Hoc

Answer 2

▪ Decentralized wireless network
▪ No routers or access points are required
▪ Forwarding decisions for data on the network are made dynamically
▪ Allows creation/joining of networks “on-the-fly”
▪ Creates P2P connections

Question 3

Wireless Mesh Topology

Answer 3

▪ Interconnection of different types of nodes or devices
▪ Consists of clients, routers, and gateways
▪ Utilizes different radio frequencies to extend and expand access
▪ Reliable and redundant connections

Question 4

802.11

Answer 4

WiFi. Ad Hoc or Infrastrucure

Question 5

RFID

Answer 5

● Uses electromagnetic fields to read data stored in embedded tags

Question 6

NFC

Answer 6

Near Field Communication

Enables two electronic devices to communicate within a 4 cm range

Question 7

IR

Answer 7

Infrared (IR)

● Operates with line of sight

Question 8

Z-Wave

Answer 8

● Provides short-range, low-latency data transfer at rates and power consumption lower than Wi-Fi

● Used primarily for home automation

Question 9

Ant+

Answer 9

● Collection and transfer of sensor data

● Used with remote control systems (tire pressure, TVs, lights)