Course 2: Infrastructure for Home Automation (AI)

Gateway

The device that packets must be sent to in order to leave the LAN. Router typically functions as a gateway in residential installations

Service Set Identifier (SSID)

The name of the WLAN the device is connecting to

Internet Protocol (IP)

The principal communication protocol for routing packets of data across network boundaries

Transmission Control Protocol (TCP)

Tracks data sent to guarantee delivery of data and is received in proper order

Network Address Translation (NAT)

Translate an IP address of one subnet to another IP address to be used outside the subnet (192.168.1.10 in your home = 201.152.1.67 on the internet)

Domain Name System (Server or DNS)

Translates domain names into IP addresses (www.yahoo.com = 209.191.122.70)

A high bandwidth network is necessary fi video streaming is going on in the home. True/False

True

An example of devices needing a low bandwidth network are a remote telling a light to turn on or off. True/False

True

Control4 apps are available form the usual app store (iTunes, Google Play, Amazon). True/False

True

Control4 recommends you NOT set up port forwarding on a customer network. True/False

True

It's free for customers to use the Control4 app inside their homes but they must pay for 4Sight to access the home when they are away form the home network. True/False

True

Network issues are the most common cause for persistent home automation problems. True/False

True

Power Conditioners can protect components from surges. True/False

True

Sequencers restore power to components in a pre-programmed order. True/False

True

The Control4 app can receive push notifications based on events happening in the home. True/False

True

The Recommended Networking Gear is article 3 found in Control4's KnowledgeBase. True/False

True

UPS is an acronym for Uninterruptible Power Supply. True/False

True

When you first launch the COntrol4 customer app, you must be on the same network as the controller you are trying to connect to. True/False

True

Wireless devices that are farther away from the access point can slow down all the rest of the devices using that same access point. True/False

True

You should always change the default passwords on networking gear. True/False

True

You should put crucial devices like routers, modems, and controllers on a UPS. True/False

True

Dynamic Host Configuration Protocol (DHCP)

Used to automatically assign devices on the network IP addresses. DHCP clients ask the DHCP server for an address. Usually in the router Only one DHCP server per subnet - other wise there will be big problems

Multiple Input/Multiple Output Antennas (MIMO)

Used to improve range and performance of access points

WLAN

Wireless Local Area Networking

Bluetooth

wireless technology (2.4 GHz) for exchanging data over short distances

802.11b 802.11g 802.11a 802.11n 802.11ac

802.11b= 11 Mbps wireless protocol using 2.4 GHz 802.11g= 54 Mbps wireless protocol using 2.4 GHz 802.11a= 54 Mbps wireless protocol using 5 GHz. Many wireless products DO NO work with this one 802.11n=more range, faster speed (up to 300 Mbps, can be dual band, can use both 2.4 GHz and 5 GHz) 802.11ac=latest generation of WiFi. 5 GHz capable of between 500 Mbps and 1 Gbps transmission speeds

WiFi (Wireless Fidelity)

802.11x, WLAN, wireless networking

The purpose of a ZAP is to ______. A. broadcast Zigbee transmissions across the network B. transfer Zigbee messages to IP controlled devices C transfer messages from Director to the Zigbee network D. convert IP addresses to MAC addresses

A

Subnet

A portion of a network that has been segmented off through software or hardware

Port Forwarding

Allows remote computers to connect to a specific computer or service within a private local area network (LAN) DO NOT DO THIS

The two functions running in a controller that enable a Zigbee mesh are the Zserver and the ______. A. Wireless Access Point (WAP) B. Zigbee Access Point (ZAP) C. Zigbee Broadcast Point (ZBP) D. Navigator Access Point (NAP)

B

What is the major advantage of mesh network? A. End node devices have the ability to route signals to other devices in a mesh network B. If one device falls off-line, communication can still happen through alternative pathways C. Mesh networks provide much higher bandwidth than typical 'hub and spoke' networks D. Mesh networks are typically much less expensive than traditional networks

B

When a Zigbee device is identified, its permanent ______ address appears in the ID window. A. ZAP address B. MAC address C. IP address D. TCP/IP address

B

When identifying Zigbee devices, ID them ______. A. by identifying the end nodes first and then the router nodes B. from the center (nearest to the mesh controller) out C. from the outer edge (farthest away from the mesh controller) inwards D. in the System Design tab (in driver properties) in Composer Pro

B

In a Zigbee network, the Zserver ______. A. sends Zigbee transmission to identified router nodes only B. broadcasts Zigbee transmissions across the network C. transfers messages from Director to the Zigbee network D. sends Zigbee transmissions to identified end nodes only

C

Power Sequencers

Condition power and restore power to components in a programmed sequence

The best definition of a 'mesh controller' is ______. A. A controller in which only ZAP is functioning B. a controller in which only Zserver is functioning C. a controller in which Director and Zserver are functioning D. a controller in which Zserver and Zap are both functioning

D

The difference between router nodes and end nodes is that router nodes ______. A. accept message only intended for themselves B. can process much larger transmissions than end nodes C. can transfer both Zigbee and IP transmissions D. transfer messages to other router and end nodes

D

IPv6

Designed to allow the Internet to grow steadily, both in terms of the number of hosts connected and the total amount of data traffic transmitted

Wired Equivalent Privacy/WiFi Protected Access (WEP/WPA)

Encrypts data transmission on Wireless Networks. Think of these as the network password. WEP and WPA are easily hackable, stick with WPA2.

A dealer needs to know their customer's system password to connect to and service their system remotely. True/False

False

Infrastructure only has to do with a customer's home network. True/False

False

It is fine to place the access point in a rack, in a basement, that is surrounded by concrete walls. True/False

False

NAS is an acronym for Network Archive System. True/False

False

Using a spare wireless router as a dedicated access point will never cause any problems. True/False

False

WAN stands for Wide Access Network. True/False

False

Water and metal do not affect wireless signal strength. True/False

False

Wireless networks are always as fast as a wired network. True/False

False

Zigbee uses Bluetooth to send commands between devices. True/False

False

The minimum recommended distance between and access point and a controller is 2 meters. True/False

False (5 m)

Network attached storage (NAS)

One or more hard drives used for storing data and is available to devices on the network. The NAS could also be available outside the customer's home through an app or webpage login.

ZigBee

Open standard wireless protocol (802.15.4 using 2.4 GHz) that runs on low power radios and is ideal for sending simple commands around a house like telling a light to turn off or a door lock to unlock

Power Conditioner

Protect components from potentially damaging power dips and surges, often by powering units off

User Datagram Protocol (UDP)

Sends out data messages with no tracking, error correction or guarantee of delivery

HDBaseT

Technology for transmission of uncompressed high-definition video (HD), audio, power, home networking, Ethernet, USB, and some control signals, over a common category (Cat5e or above) cable with a standard connector (RJ45)