10 Questions
What is the primary function of IoT devices?
To connect and exchange data with other devices and the cloud
What is an advantage of the basic home network diagram described?
It requires minimal network equipment setup
What is the benefit of virtual networks in terms of configuration?
They make network configuration changes easier
Why is customizing settings important when setting up a network switch and router?
To ensure the network works properly
What is network configuration in the context of computer networks?
The process of assigning network settings and policies
What is the primary purpose of the default gateway setting on a network switch and router?
To make the device visible to network management tools
What is the frequency band used by wireless access points to connect devices to the network?
900 MHz and 2.4, 3.6, 5, and 60 GHz
What is the name of the standard used by the latest wireless routers?
IEEE 802.11ac Wave 2
What is the primary function of a wireless access point?
To transmit and receive data over a wireless local area network
What is the term used to describe the process of transferring a wireless device from one access point to another?
Handover
Study Notes
Internet of Things (IoT)
- IoT is a network of interrelated devices that connect and exchange data with other IoT devices and the cloud.
- IoT devices typically include sensors and software, and can be mechanical and digital machines or consumer objects.
Home Network Diagram
- A basic home network diagram consists of a router with a built-in modem and access point from an ISP (Internet Service Provider).
- This setup allows connection of up to four devices using a network (UTP) cable.
- Advantage: suitable for small houses with limited devices, no need for additional network equipment.
Network Configuration
- Network configuration involves assigning network settings, policies, flows, and controls.
- In a virtual network, configuration changes are easier to make since physical devices are replaced by software.
- Configurable settings on a network switch and router include:
- IP address for identification
- Password for added security
- Channel and band selection for improved performance
- Default gateway for visibility to network management tools
- Neighbor discovery for added visibility
- Correct time for proper troubleshooting and detailed error logs
Wi-Fi and Routers
- Wi-Fi (Wireless Fidelity) is a popular wireless technology providing high-speed Internet and network connections.
- A router connects local networks to other local networks or the Internet.
- A wireless access point connects devices to the network wirelessly using radio frequencies.
- Wireless routers are based on the IEEE 802.11ac Wave 2 standard.
- Wireless routers can receive information from and send information to the Internet.
Types of Routers
- Wired routers connect directly to modems or wide-area networks (WANs) via network cables.
- Wireless routers connect wirelessly to devices that support the same wireless standards.
- Wireless routers can receive information from and send information to the Internet.
Wireless Access Points
- A wireless access point (WAP) transmits and receives data over a wireless local area network (WLAN).
- An AP is like an Ethernet hub, but relays 802.11 frames to all other 802.11 or 802.3 stations in the same subnet.
- Wireless access points work to distribute a Wi-Fi signal by connecting directly to a router or network switch via Ethernet cable.
- Access points can improve wireless coverage by creating a wireless local area network.
Learn about the Internet of Things (IoT) and its devices, as well as the basics of a home network, including routers and modems. Understand how these devices connect and exchange data.
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